Delaying farrowing using intravaginal devices impregnated with progestagen does not affect the proportion of piglets born alive O atraso do parto utilizando dispositivos intravaginais impregnados com progestágeno não afeta a proporção de leitões nascidos vivos
The objective of this study was to evaluate the efficiency of progestagen intravaginal devices (IVDs) in preventing parturition in sows by determining the effect of delaying parturition on the alive/total born piglets ratio. Evaluations of IVDs containing 0.5, 1.0 or 1.5g progesterone (P4) showed th...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Gabriel Fernando Freling [verfasserIn] Bernardo Garziera Gasperin [verfasserIn] Rogério Ferreira [verfasserIn] Matheus Pedroti Cesaro [verfasserIn] João Francisco Oliveira [verfasserIn] Vilceu Bordignon [verfasserIn] Paulo Bayard Dias Gonçalves [verfasserIn] |
|---|
| Format: |
E-Artikel |
|---|---|
| Sprache: |
Englisch ; Portugiesisch |
| Erschienen: |
2013 |
|---|
| Schlagwörter: |
acetato de medroxiprogesterona |
|---|
| Übergeordnetes Werk: |
In: Ciência Rural - Universidade Federal de Santa Maria, 2004, (2013), ahead, p 0 |
|---|---|
| Übergeordnetes Werk: |
year:2013 ; number:ahead, p 0 |
| Links: |
|---|
| Katalog-ID: |
DOAJ064385477 |
|---|
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| 245 | 1 | 0 | |a Delaying farrowing using intravaginal devices impregnated with progestagen does not affect the proportion of piglets born alive O atraso do parto utilizando dispositivos intravaginais impregnados com progestágeno não afeta a proporção de leitões nascidos vivos |
| 264 | 1 | |c 2013 | |
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| 520 | |a The objective of this study was to evaluate the efficiency of progestagen intravaginal devices (IVDs) in preventing parturition in sows by determining the effect of delaying parturition on the alive/total born piglets ratio. Evaluations of IVDs containing 0.5, 1.0 or 1.5g progesterone (P4) showed they were not effective in delaying parturition at any dosage tested. In a second experiment, seventy-five sows at day 112 of pregnancy were equally distributed (n=15 per group) in the following treatments: prostaglandin (PGF2α; 250µg sodium cloprostenol; control group) or PGF2α and simultaneous insertion of an IVD containing medroxyprogesterone acetate (MPA) for 48h. Control sows initiated labor 27.7±1.6h after PGF2α injection. The mean time (±SEM) between PGF2α administration and parturition was 72.1±8.8h, 72.7±3.8h, 82.7±7.1h and 81.8±3.5h for MPA 100, 200, 400 and 800mg, respectively, differing from control group (P<0.05). To evaluate the effect of delaying parturition on the alive/total born piglets ratio at birth, sows between days 109 and 112 of gestation received IVDs containing 800mg MPA (on Thursdays) for 72h to prevent parturition in weekends and then were treated with PGF2α at the time of device withdrawal (on Sundays). The alive/total born piglets ratio was 89.0±1.6, 90.1±1.2 and 89.0±1.5% for control (Normal group; n=57 sows), PGF2α-induced (Induced group; n=57 sows), and IVD+PGF2α-induced (MPA800 group, n=56 sows) groups, respectively (P<0.05). These findings confirm that IVDs impregnated with MPA can effectively prevent parturition in sows without affecting the alive/total born piglets ratio and therefore represent an alternative to avoid weekend farrowing in swine herds.<br<O objetivo do presente estudo foi avaliar a eficiência de dispositivos intravaginais (DIVs) contendo progestágeno na prevenção do parto e determinar o efeito do atraso do parto sobre a proporção de leitões vivos/nascidos totais. DIVs contendo 0,5, 1,0 ou 1,5g de progesterona (P4) não foram eficientes na prevenção do parto em nenhuma das doses. No experimento 2, setenta e cinco porcas aos 112 dias de gestação foram equilibradamente distribuídas (n=15 por grupo) nos seguintes tratamentos: prostaglandina (PGF2α; 250µg cloprostenol sódico; grupo controle) ou PGF2α e simultânea inserção de DIV contendo acetato de medroxiprogesterona (MAP) por 48h. Fêmeas do grupo controle iniciaram o parto 27,7±1,6h após injeção de PGF2α. O tempo médio entre a administração de PGF2α e início do parto foi 72,1±8,8h, 72,7±3,8h, 82,7±7,1h e 81,8±3,5h para os grupos MAP 100, 200, 400 e 800mg, respectivamente, diferindo do grupo controle (P<0,05). Para avaliar o efeito da inibição do parto sobre a proporção de leitões nascidos vivos, porcas entre 109 e 112 dias de gestação receberam DIVs contendo 800mg MAP (quintas-feiras) por 72h para prevenir o parto aos finais de semana e foram tratadas com PGF2α no momento da retirada dos DIV (aos domingos). A razão leitões vivos/nascidos totais foi 89,0±1,6, 90,1±1,2 e 89,0±1,5% nos grupos controle (Normal; n=57 porcas), induzido com PGF2α (Induzido; n=57 porcas) e PGF2α+DIV (MPA800; n=56 porcas), respectivamente (P<0,05). Esses resultados confirmam que DIVs contendo MAP podem efetivamente inibir o início do parto em porcas sem afetar a proporção de leitões nascidos vivos e, portanto, representam uma alternativa para evitar partos aos finais de semana. | ||
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| 650 | 4 | |a proporção de leitões vivos | |
| 650 | 4 | |a acetato de medroxiprogesterona | |
| 650 | 4 | |a programmed farrowing | |
| 650 | 4 | |a alive/total born piglets ratio | |
| 650 | 4 | |a medroxyprogesterone acetate | |
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(DE-627)DOAJ064385477 (DE-599)DOAJ5c773e3d9c214482bdbe2b1ebcdf114a DE-627 ger DE-627 rakwb eng por S1-972 Gabriel Fernando Freling verfasserin aut Delaying farrowing using intravaginal devices impregnated with progestagen does not affect the proportion of piglets born alive O atraso do parto utilizando dispositivos intravaginais impregnados com progestágeno não afeta a proporção de leitões nascidos vivos 2013 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The objective of this study was to evaluate the efficiency of progestagen intravaginal devices (IVDs) in preventing parturition in sows by determining the effect of delaying parturition on the alive/total born piglets ratio. Evaluations of IVDs containing 0.5, 1.0 or 1.5g progesterone (P4) showed they were not effective in delaying parturition at any dosage tested. In a second experiment, seventy-five sows at day 112 of pregnancy were equally distributed (n=15 per group) in the following treatments: prostaglandin (PGF2α; 250µg sodium cloprostenol; control group) or PGF2α and simultaneous insertion of an IVD containing medroxyprogesterone acetate (MPA) for 48h. Control sows initiated labor 27.7±1.6h after PGF2α injection. The mean time (±SEM) between PGF2α administration and parturition was 72.1±8.8h, 72.7±3.8h, 82.7±7.1h and 81.8±3.5h for MPA 100, 200, 400 and 800mg, respectively, differing from control group (P<0.05). To evaluate the effect of delaying parturition on the alive/total born piglets ratio at birth, sows between days 109 and 112 of gestation received IVDs containing 800mg MPA (on Thursdays) for 72h to prevent parturition in weekends and then were treated with PGF2α at the time of device withdrawal (on Sundays). The alive/total born piglets ratio was 89.0±1.6, 90.1±1.2 and 89.0±1.5% for control (Normal group; n=57 sows), PGF2α-induced (Induced group; n=57 sows), and IVD+PGF2α-induced (MPA800 group, n=56 sows) groups, respectively (P<0.05). These findings confirm that IVDs impregnated with MPA can effectively prevent parturition in sows without affecting the alive/total born piglets ratio and therefore represent an alternative to avoid weekend farrowing in swine herds.<br<O objetivo do presente estudo foi avaliar a eficiência de dispositivos intravaginais (DIVs) contendo progestágeno na prevenção do parto e determinar o efeito do atraso do parto sobre a proporção de leitões vivos/nascidos totais. DIVs contendo 0,5, 1,0 ou 1,5g de progesterona (P4) não foram eficientes na prevenção do parto em nenhuma das doses. No experimento 2, setenta e cinco porcas aos 112 dias de gestação foram equilibradamente distribuídas (n=15 por grupo) nos seguintes tratamentos: prostaglandina (PGF2α; 250µg cloprostenol sódico; grupo controle) ou PGF2α e simultânea inserção de DIV contendo acetato de medroxiprogesterona (MAP) por 48h. Fêmeas do grupo controle iniciaram o parto 27,7±1,6h após injeção de PGF2α. O tempo médio entre a administração de PGF2α e início do parto foi 72,1±8,8h, 72,7±3,8h, 82,7±7,1h e 81,8±3,5h para os grupos MAP 100, 200, 400 e 800mg, respectivamente, diferindo do grupo controle (P<0,05). Para avaliar o efeito da inibição do parto sobre a proporção de leitões nascidos vivos, porcas entre 109 e 112 dias de gestação receberam DIVs contendo 800mg MAP (quintas-feiras) por 72h para prevenir o parto aos finais de semana e foram tratadas com PGF2α no momento da retirada dos DIV (aos domingos). A razão leitões vivos/nascidos totais foi 89,0±1,6, 90,1±1,2 e 89,0±1,5% nos grupos controle (Normal; n=57 porcas), induzido com PGF2α (Induzido; n=57 porcas) e PGF2α+DIV (MPA800; n=56 porcas), respectivamente (P<0,05). Esses resultados confirmam que DIVs contendo MAP podem efetivamente inibir o início do parto em porcas sem afetar a proporção de leitões nascidos vivos e, portanto, representam uma alternativa para evitar partos aos finais de semana. indução de parto proporção de leitões vivos acetato de medroxiprogesterona programmed farrowing alive/total born piglets ratio medroxyprogesterone acetate Agriculture S Agriculture (General) Bernardo Garziera Gasperin verfasserin aut Rogério Ferreira verfasserin aut Matheus Pedroti Cesaro verfasserin aut João Francisco Oliveira verfasserin aut Vilceu Bordignon verfasserin aut Paulo Bayard Dias Gonçalves verfasserin aut In Ciência Rural Universidade Federal de Santa Maria, 2004 (2013), ahead, p 0 (DE-627)320649970 (DE-600)2025834-3 16784596 nnns year:2013 number:ahead, p 0 https://doaj.org/article/5c773e3d9c214482bdbe2b1ebcdf114a kostenfrei http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782013005000077 kostenfrei https://doaj.org/toc/0103-8478 Journal toc kostenfrei https://doaj.org/toc/1678-4596 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_252 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 2013 ahead, p 0 |
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(DE-627)DOAJ064385477 (DE-599)DOAJ5c773e3d9c214482bdbe2b1ebcdf114a DE-627 ger DE-627 rakwb eng por S1-972 Gabriel Fernando Freling verfasserin aut Delaying farrowing using intravaginal devices impregnated with progestagen does not affect the proportion of piglets born alive O atraso do parto utilizando dispositivos intravaginais impregnados com progestágeno não afeta a proporção de leitões nascidos vivos 2013 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The objective of this study was to evaluate the efficiency of progestagen intravaginal devices (IVDs) in preventing parturition in sows by determining the effect of delaying parturition on the alive/total born piglets ratio. Evaluations of IVDs containing 0.5, 1.0 or 1.5g progesterone (P4) showed they were not effective in delaying parturition at any dosage tested. In a second experiment, seventy-five sows at day 112 of pregnancy were equally distributed (n=15 per group) in the following treatments: prostaglandin (PGF2α; 250µg sodium cloprostenol; control group) or PGF2α and simultaneous insertion of an IVD containing medroxyprogesterone acetate (MPA) for 48h. Control sows initiated labor 27.7±1.6h after PGF2α injection. The mean time (±SEM) between PGF2α administration and parturition was 72.1±8.8h, 72.7±3.8h, 82.7±7.1h and 81.8±3.5h for MPA 100, 200, 400 and 800mg, respectively, differing from control group (P<0.05). To evaluate the effect of delaying parturition on the alive/total born piglets ratio at birth, sows between days 109 and 112 of gestation received IVDs containing 800mg MPA (on Thursdays) for 72h to prevent parturition in weekends and then were treated with PGF2α at the time of device withdrawal (on Sundays). The alive/total born piglets ratio was 89.0±1.6, 90.1±1.2 and 89.0±1.5% for control (Normal group; n=57 sows), PGF2α-induced (Induced group; n=57 sows), and IVD+PGF2α-induced (MPA800 group, n=56 sows) groups, respectively (P<0.05). These findings confirm that IVDs impregnated with MPA can effectively prevent parturition in sows without affecting the alive/total born piglets ratio and therefore represent an alternative to avoid weekend farrowing in swine herds.<br<O objetivo do presente estudo foi avaliar a eficiência de dispositivos intravaginais (DIVs) contendo progestágeno na prevenção do parto e determinar o efeito do atraso do parto sobre a proporção de leitões vivos/nascidos totais. DIVs contendo 0,5, 1,0 ou 1,5g de progesterona (P4) não foram eficientes na prevenção do parto em nenhuma das doses. No experimento 2, setenta e cinco porcas aos 112 dias de gestação foram equilibradamente distribuídas (n=15 por grupo) nos seguintes tratamentos: prostaglandina (PGF2α; 250µg cloprostenol sódico; grupo controle) ou PGF2α e simultânea inserção de DIV contendo acetato de medroxiprogesterona (MAP) por 48h. Fêmeas do grupo controle iniciaram o parto 27,7±1,6h após injeção de PGF2α. O tempo médio entre a administração de PGF2α e início do parto foi 72,1±8,8h, 72,7±3,8h, 82,7±7,1h e 81,8±3,5h para os grupos MAP 100, 200, 400 e 800mg, respectivamente, diferindo do grupo controle (P<0,05). Para avaliar o efeito da inibição do parto sobre a proporção de leitões nascidos vivos, porcas entre 109 e 112 dias de gestação receberam DIVs contendo 800mg MAP (quintas-feiras) por 72h para prevenir o parto aos finais de semana e foram tratadas com PGF2α no momento da retirada dos DIV (aos domingos). A razão leitões vivos/nascidos totais foi 89,0±1,6, 90,1±1,2 e 89,0±1,5% nos grupos controle (Normal; n=57 porcas), induzido com PGF2α (Induzido; n=57 porcas) e PGF2α+DIV (MPA800; n=56 porcas), respectivamente (P<0,05). Esses resultados confirmam que DIVs contendo MAP podem efetivamente inibir o início do parto em porcas sem afetar a proporção de leitões nascidos vivos e, portanto, representam uma alternativa para evitar partos aos finais de semana. indução de parto proporção de leitões vivos acetato de medroxiprogesterona programmed farrowing alive/total born piglets ratio medroxyprogesterone acetate Agriculture S Agriculture (General) Bernardo Garziera Gasperin verfasserin aut Rogério Ferreira verfasserin aut Matheus Pedroti Cesaro verfasserin aut João Francisco Oliveira verfasserin aut Vilceu Bordignon verfasserin aut Paulo Bayard Dias Gonçalves verfasserin aut In Ciência Rural Universidade Federal de Santa Maria, 2004 (2013), ahead, p 0 (DE-627)320649970 (DE-600)2025834-3 16784596 nnns year:2013 number:ahead, p 0 https://doaj.org/article/5c773e3d9c214482bdbe2b1ebcdf114a kostenfrei http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782013005000077 kostenfrei https://doaj.org/toc/0103-8478 Journal toc kostenfrei https://doaj.org/toc/1678-4596 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_252 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 2013 ahead, p 0 |
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(DE-627)DOAJ064385477 (DE-599)DOAJ5c773e3d9c214482bdbe2b1ebcdf114a DE-627 ger DE-627 rakwb eng por S1-972 Gabriel Fernando Freling verfasserin aut Delaying farrowing using intravaginal devices impregnated with progestagen does not affect the proportion of piglets born alive O atraso do parto utilizando dispositivos intravaginais impregnados com progestágeno não afeta a proporção de leitões nascidos vivos 2013 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The objective of this study was to evaluate the efficiency of progestagen intravaginal devices (IVDs) in preventing parturition in sows by determining the effect of delaying parturition on the alive/total born piglets ratio. Evaluations of IVDs containing 0.5, 1.0 or 1.5g progesterone (P4) showed they were not effective in delaying parturition at any dosage tested. In a second experiment, seventy-five sows at day 112 of pregnancy were equally distributed (n=15 per group) in the following treatments: prostaglandin (PGF2α; 250µg sodium cloprostenol; control group) or PGF2α and simultaneous insertion of an IVD containing medroxyprogesterone acetate (MPA) for 48h. Control sows initiated labor 27.7±1.6h after PGF2α injection. The mean time (±SEM) between PGF2α administration and parturition was 72.1±8.8h, 72.7±3.8h, 82.7±7.1h and 81.8±3.5h for MPA 100, 200, 400 and 800mg, respectively, differing from control group (P<0.05). To evaluate the effect of delaying parturition on the alive/total born piglets ratio at birth, sows between days 109 and 112 of gestation received IVDs containing 800mg MPA (on Thursdays) for 72h to prevent parturition in weekends and then were treated with PGF2α at the time of device withdrawal (on Sundays). The alive/total born piglets ratio was 89.0±1.6, 90.1±1.2 and 89.0±1.5% for control (Normal group; n=57 sows), PGF2α-induced (Induced group; n=57 sows), and IVD+PGF2α-induced (MPA800 group, n=56 sows) groups, respectively (P<0.05). These findings confirm that IVDs impregnated with MPA can effectively prevent parturition in sows without affecting the alive/total born piglets ratio and therefore represent an alternative to avoid weekend farrowing in swine herds.<br<O objetivo do presente estudo foi avaliar a eficiência de dispositivos intravaginais (DIVs) contendo progestágeno na prevenção do parto e determinar o efeito do atraso do parto sobre a proporção de leitões vivos/nascidos totais. DIVs contendo 0,5, 1,0 ou 1,5g de progesterona (P4) não foram eficientes na prevenção do parto em nenhuma das doses. No experimento 2, setenta e cinco porcas aos 112 dias de gestação foram equilibradamente distribuídas (n=15 por grupo) nos seguintes tratamentos: prostaglandina (PGF2α; 250µg cloprostenol sódico; grupo controle) ou PGF2α e simultânea inserção de DIV contendo acetato de medroxiprogesterona (MAP) por 48h. Fêmeas do grupo controle iniciaram o parto 27,7±1,6h após injeção de PGF2α. O tempo médio entre a administração de PGF2α e início do parto foi 72,1±8,8h, 72,7±3,8h, 82,7±7,1h e 81,8±3,5h para os grupos MAP 100, 200, 400 e 800mg, respectivamente, diferindo do grupo controle (P<0,05). Para avaliar o efeito da inibição do parto sobre a proporção de leitões nascidos vivos, porcas entre 109 e 112 dias de gestação receberam DIVs contendo 800mg MAP (quintas-feiras) por 72h para prevenir o parto aos finais de semana e foram tratadas com PGF2α no momento da retirada dos DIV (aos domingos). A razão leitões vivos/nascidos totais foi 89,0±1,6, 90,1±1,2 e 89,0±1,5% nos grupos controle (Normal; n=57 porcas), induzido com PGF2α (Induzido; n=57 porcas) e PGF2α+DIV (MPA800; n=56 porcas), respectivamente (P<0,05). Esses resultados confirmam que DIVs contendo MAP podem efetivamente inibir o início do parto em porcas sem afetar a proporção de leitões nascidos vivos e, portanto, representam uma alternativa para evitar partos aos finais de semana. indução de parto proporção de leitões vivos acetato de medroxiprogesterona programmed farrowing alive/total born piglets ratio medroxyprogesterone acetate Agriculture S Agriculture (General) Bernardo Garziera Gasperin verfasserin aut Rogério Ferreira verfasserin aut Matheus Pedroti Cesaro verfasserin aut João Francisco Oliveira verfasserin aut Vilceu Bordignon verfasserin aut Paulo Bayard Dias Gonçalves verfasserin aut In Ciência Rural Universidade Federal de Santa Maria, 2004 (2013), ahead, p 0 (DE-627)320649970 (DE-600)2025834-3 16784596 nnns year:2013 number:ahead, p 0 https://doaj.org/article/5c773e3d9c214482bdbe2b1ebcdf114a kostenfrei http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782013005000077 kostenfrei https://doaj.org/toc/0103-8478 Journal toc kostenfrei https://doaj.org/toc/1678-4596 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_252 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 2013 ahead, p 0 |
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(DE-627)DOAJ064385477 (DE-599)DOAJ5c773e3d9c214482bdbe2b1ebcdf114a DE-627 ger DE-627 rakwb eng por S1-972 Gabriel Fernando Freling verfasserin aut Delaying farrowing using intravaginal devices impregnated with progestagen does not affect the proportion of piglets born alive O atraso do parto utilizando dispositivos intravaginais impregnados com progestágeno não afeta a proporção de leitões nascidos vivos 2013 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The objective of this study was to evaluate the efficiency of progestagen intravaginal devices (IVDs) in preventing parturition in sows by determining the effect of delaying parturition on the alive/total born piglets ratio. Evaluations of IVDs containing 0.5, 1.0 or 1.5g progesterone (P4) showed they were not effective in delaying parturition at any dosage tested. In a second experiment, seventy-five sows at day 112 of pregnancy were equally distributed (n=15 per group) in the following treatments: prostaglandin (PGF2α; 250µg sodium cloprostenol; control group) or PGF2α and simultaneous insertion of an IVD containing medroxyprogesterone acetate (MPA) for 48h. Control sows initiated labor 27.7±1.6h after PGF2α injection. The mean time (±SEM) between PGF2α administration and parturition was 72.1±8.8h, 72.7±3.8h, 82.7±7.1h and 81.8±3.5h for MPA 100, 200, 400 and 800mg, respectively, differing from control group (P<0.05). To evaluate the effect of delaying parturition on the alive/total born piglets ratio at birth, sows between days 109 and 112 of gestation received IVDs containing 800mg MPA (on Thursdays) for 72h to prevent parturition in weekends and then were treated with PGF2α at the time of device withdrawal (on Sundays). The alive/total born piglets ratio was 89.0±1.6, 90.1±1.2 and 89.0±1.5% for control (Normal group; n=57 sows), PGF2α-induced (Induced group; n=57 sows), and IVD+PGF2α-induced (MPA800 group, n=56 sows) groups, respectively (P<0.05). These findings confirm that IVDs impregnated with MPA can effectively prevent parturition in sows without affecting the alive/total born piglets ratio and therefore represent an alternative to avoid weekend farrowing in swine herds.<br<O objetivo do presente estudo foi avaliar a eficiência de dispositivos intravaginais (DIVs) contendo progestágeno na prevenção do parto e determinar o efeito do atraso do parto sobre a proporção de leitões vivos/nascidos totais. DIVs contendo 0,5, 1,0 ou 1,5g de progesterona (P4) não foram eficientes na prevenção do parto em nenhuma das doses. No experimento 2, setenta e cinco porcas aos 112 dias de gestação foram equilibradamente distribuídas (n=15 por grupo) nos seguintes tratamentos: prostaglandina (PGF2α; 250µg cloprostenol sódico; grupo controle) ou PGF2α e simultânea inserção de DIV contendo acetato de medroxiprogesterona (MAP) por 48h. Fêmeas do grupo controle iniciaram o parto 27,7±1,6h após injeção de PGF2α. O tempo médio entre a administração de PGF2α e início do parto foi 72,1±8,8h, 72,7±3,8h, 82,7±7,1h e 81,8±3,5h para os grupos MAP 100, 200, 400 e 800mg, respectivamente, diferindo do grupo controle (P<0,05). Para avaliar o efeito da inibição do parto sobre a proporção de leitões nascidos vivos, porcas entre 109 e 112 dias de gestação receberam DIVs contendo 800mg MAP (quintas-feiras) por 72h para prevenir o parto aos finais de semana e foram tratadas com PGF2α no momento da retirada dos DIV (aos domingos). A razão leitões vivos/nascidos totais foi 89,0±1,6, 90,1±1,2 e 89,0±1,5% nos grupos controle (Normal; n=57 porcas), induzido com PGF2α (Induzido; n=57 porcas) e PGF2α+DIV (MPA800; n=56 porcas), respectivamente (P<0,05). Esses resultados confirmam que DIVs contendo MAP podem efetivamente inibir o início do parto em porcas sem afetar a proporção de leitões nascidos vivos e, portanto, representam uma alternativa para evitar partos aos finais de semana. indução de parto proporção de leitões vivos acetato de medroxiprogesterona programmed farrowing alive/total born piglets ratio medroxyprogesterone acetate Agriculture S Agriculture (General) Bernardo Garziera Gasperin verfasserin aut Rogério Ferreira verfasserin aut Matheus Pedroti Cesaro verfasserin aut João Francisco Oliveira verfasserin aut Vilceu Bordignon verfasserin aut Paulo Bayard Dias Gonçalves verfasserin aut In Ciência Rural Universidade Federal de Santa Maria, 2004 (2013), ahead, p 0 (DE-627)320649970 (DE-600)2025834-3 16784596 nnns year:2013 number:ahead, p 0 https://doaj.org/article/5c773e3d9c214482bdbe2b1ebcdf114a kostenfrei http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782013005000077 kostenfrei https://doaj.org/toc/0103-8478 Journal toc kostenfrei https://doaj.org/toc/1678-4596 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_252 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 2013 ahead, p 0 |
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(DE-627)DOAJ064385477 (DE-599)DOAJ5c773e3d9c214482bdbe2b1ebcdf114a DE-627 ger DE-627 rakwb eng por S1-972 Gabriel Fernando Freling verfasserin aut Delaying farrowing using intravaginal devices impregnated with progestagen does not affect the proportion of piglets born alive O atraso do parto utilizando dispositivos intravaginais impregnados com progestágeno não afeta a proporção de leitões nascidos vivos 2013 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The objective of this study was to evaluate the efficiency of progestagen intravaginal devices (IVDs) in preventing parturition in sows by determining the effect of delaying parturition on the alive/total born piglets ratio. Evaluations of IVDs containing 0.5, 1.0 or 1.5g progesterone (P4) showed they were not effective in delaying parturition at any dosage tested. In a second experiment, seventy-five sows at day 112 of pregnancy were equally distributed (n=15 per group) in the following treatments: prostaglandin (PGF2α; 250µg sodium cloprostenol; control group) or PGF2α and simultaneous insertion of an IVD containing medroxyprogesterone acetate (MPA) for 48h. Control sows initiated labor 27.7±1.6h after PGF2α injection. The mean time (±SEM) between PGF2α administration and parturition was 72.1±8.8h, 72.7±3.8h, 82.7±7.1h and 81.8±3.5h for MPA 100, 200, 400 and 800mg, respectively, differing from control group (P<0.05). To evaluate the effect of delaying parturition on the alive/total born piglets ratio at birth, sows between days 109 and 112 of gestation received IVDs containing 800mg MPA (on Thursdays) for 72h to prevent parturition in weekends and then were treated with PGF2α at the time of device withdrawal (on Sundays). The alive/total born piglets ratio was 89.0±1.6, 90.1±1.2 and 89.0±1.5% for control (Normal group; n=57 sows), PGF2α-induced (Induced group; n=57 sows), and IVD+PGF2α-induced (MPA800 group, n=56 sows) groups, respectively (P<0.05). These findings confirm that IVDs impregnated with MPA can effectively prevent parturition in sows without affecting the alive/total born piglets ratio and therefore represent an alternative to avoid weekend farrowing in swine herds.<br<O objetivo do presente estudo foi avaliar a eficiência de dispositivos intravaginais (DIVs) contendo progestágeno na prevenção do parto e determinar o efeito do atraso do parto sobre a proporção de leitões vivos/nascidos totais. DIVs contendo 0,5, 1,0 ou 1,5g de progesterona (P4) não foram eficientes na prevenção do parto em nenhuma das doses. No experimento 2, setenta e cinco porcas aos 112 dias de gestação foram equilibradamente distribuídas (n=15 por grupo) nos seguintes tratamentos: prostaglandina (PGF2α; 250µg cloprostenol sódico; grupo controle) ou PGF2α e simultânea inserção de DIV contendo acetato de medroxiprogesterona (MAP) por 48h. Fêmeas do grupo controle iniciaram o parto 27,7±1,6h após injeção de PGF2α. O tempo médio entre a administração de PGF2α e início do parto foi 72,1±8,8h, 72,7±3,8h, 82,7±7,1h e 81,8±3,5h para os grupos MAP 100, 200, 400 e 800mg, respectivamente, diferindo do grupo controle (P<0,05). Para avaliar o efeito da inibição do parto sobre a proporção de leitões nascidos vivos, porcas entre 109 e 112 dias de gestação receberam DIVs contendo 800mg MAP (quintas-feiras) por 72h para prevenir o parto aos finais de semana e foram tratadas com PGF2α no momento da retirada dos DIV (aos domingos). A razão leitões vivos/nascidos totais foi 89,0±1,6, 90,1±1,2 e 89,0±1,5% nos grupos controle (Normal; n=57 porcas), induzido com PGF2α (Induzido; n=57 porcas) e PGF2α+DIV (MPA800; n=56 porcas), respectivamente (P<0,05). Esses resultados confirmam que DIVs contendo MAP podem efetivamente inibir o início do parto em porcas sem afetar a proporção de leitões nascidos vivos e, portanto, representam uma alternativa para evitar partos aos finais de semana. indução de parto proporção de leitões vivos acetato de medroxiprogesterona programmed farrowing alive/total born piglets ratio medroxyprogesterone acetate Agriculture S Agriculture (General) Bernardo Garziera Gasperin verfasserin aut Rogério Ferreira verfasserin aut Matheus Pedroti Cesaro verfasserin aut João Francisco Oliveira verfasserin aut Vilceu Bordignon verfasserin aut Paulo Bayard Dias Gonçalves verfasserin aut In Ciência Rural Universidade Federal de Santa Maria, 2004 (2013), ahead, p 0 (DE-627)320649970 (DE-600)2025834-3 16784596 nnns year:2013 number:ahead, p 0 https://doaj.org/article/5c773e3d9c214482bdbe2b1ebcdf114a kostenfrei http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782013005000077 kostenfrei https://doaj.org/toc/0103-8478 Journal toc kostenfrei https://doaj.org/toc/1678-4596 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_252 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 2013 ahead, p 0 |
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Gabriel Fernando Freling @@aut@@ Bernardo Garziera Gasperin @@aut@@ Rogério Ferreira @@aut@@ Matheus Pedroti Cesaro @@aut@@ João Francisco Oliveira @@aut@@ Vilceu Bordignon @@aut@@ Paulo Bayard Dias Gonçalves @@aut@@ |
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Evaluations of IVDs containing 0.5, 1.0 or 1.5g progesterone (P4) showed they were not effective in delaying parturition at any dosage tested. In a second experiment, seventy-five sows at day 112 of pregnancy were equally distributed (n=15 per group) in the following treatments: prostaglandin (PGF2α; 250µg sodium cloprostenol; control group) or PGF2α and simultaneous insertion of an IVD containing medroxyprogesterone acetate (MPA) for 48h. Control sows initiated labor 27.7±1.6h after PGF2α injection. The mean time (±SEM) between PGF2α administration and parturition was 72.1±8.8h, 72.7±3.8h, 82.7±7.1h and 81.8±3.5h for MPA 100, 200, 400 and 800mg, respectively, differing from control group (P<0.05). To evaluate the effect of delaying parturition on the alive/total born piglets ratio at birth, sows between days 109 and 112 of gestation received IVDs containing 800mg MPA (on Thursdays) for 72h to prevent parturition in weekends and then were treated with PGF2α at the time of device withdrawal (on Sundays). The alive/total born piglets ratio was 89.0±1.6, 90.1±1.2 and 89.0±1.5% for control (Normal group; n=57 sows), PGF2α-induced (Induced group; n=57 sows), and IVD+PGF2α-induced (MPA800 group, n=56 sows) groups, respectively (P<0.05). These findings confirm that IVDs impregnated with MPA can effectively prevent parturition in sows without affecting the alive/total born piglets ratio and therefore represent an alternative to avoid weekend farrowing in swine herds.<br<O objetivo do presente estudo foi avaliar a eficiência de dispositivos intravaginais (DIVs) contendo progestágeno na prevenção do parto e determinar o efeito do atraso do parto sobre a proporção de leitões vivos/nascidos totais. DIVs contendo 0,5, 1,0 ou 1,5g de progesterona (P4) não foram eficientes na prevenção do parto em nenhuma das doses. No experimento 2, setenta e cinco porcas aos 112 dias de gestação foram equilibradamente distribuídas (n=15 por grupo) nos seguintes tratamentos: prostaglandina (PGF2α; 250µg cloprostenol sódico; grupo controle) ou PGF2α e simultânea inserção de DIV contendo acetato de medroxiprogesterona (MAP) por 48h. Fêmeas do grupo controle iniciaram o parto 27,7±1,6h após injeção de PGF2α. O tempo médio entre a administração de PGF2α e início do parto foi 72,1±8,8h, 72,7±3,8h, 82,7±7,1h e 81,8±3,5h para os grupos MAP 100, 200, 400 e 800mg, respectivamente, diferindo do grupo controle (P<0,05). Para avaliar o efeito da inibição do parto sobre a proporção de leitões nascidos vivos, porcas entre 109 e 112 dias de gestação receberam DIVs contendo 800mg MAP (quintas-feiras) por 72h para prevenir o parto aos finais de semana e foram tratadas com PGF2α no momento da retirada dos DIV (aos domingos). A razão leitões vivos/nascidos totais foi 89,0±1,6, 90,1±1,2 e 89,0±1,5% nos grupos controle (Normal; n=57 porcas), induzido com PGF2α (Induzido; n=57 porcas) e PGF2α+DIV (MPA800; n=56 porcas), respectivamente (P<0,05). Esses resultados confirmam que DIVs contendo MAP podem efetivamente inibir o início do parto em porcas sem afetar a proporção de leitões nascidos vivos e, portanto, representam uma alternativa para evitar partos aos finais de semana.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">indução de parto</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">proporção de leitões vivos</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">acetato de medroxiprogesterona</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">programmed farrowing</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">alive/total born piglets ratio</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">medroxyprogesterone acetate</subfield></datafield><datafield tag="653" ind1=" " ind2="0"><subfield code="a">Agriculture</subfield></datafield><datafield 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S - Agriculture |
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Gabriel Fernando Freling |
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Gabriel Fernando Freling misc S1-972 misc indução de parto misc proporção de leitões vivos misc acetato de medroxiprogesterona misc programmed farrowing misc alive/total born piglets ratio misc medroxyprogesterone acetate misc Agriculture misc S misc Agriculture (General) Delaying farrowing using intravaginal devices impregnated with progestagen does not affect the proportion of piglets born alive O atraso do parto utilizando dispositivos intravaginais impregnados com progestágeno não afeta a proporção de leitões nascidos vivos |
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S1-972 Delaying farrowing using intravaginal devices impregnated with progestagen does not affect the proportion of piglets born alive O atraso do parto utilizando dispositivos intravaginais impregnados com progestágeno não afeta a proporção de leitões nascidos vivos indução de parto proporção de leitões vivos acetato de medroxiprogesterona programmed farrowing alive/total born piglets ratio medroxyprogesterone acetate |
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misc S1-972 misc indução de parto misc proporção de leitões vivos misc acetato de medroxiprogesterona misc programmed farrowing misc alive/total born piglets ratio misc medroxyprogesterone acetate misc Agriculture misc S misc Agriculture (General) |
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misc S1-972 misc indução de parto misc proporção de leitões vivos misc acetato de medroxiprogesterona misc programmed farrowing misc alive/total born piglets ratio misc medroxyprogesterone acetate misc Agriculture misc S misc Agriculture (General) |
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misc S1-972 misc indução de parto misc proporção de leitões vivos misc acetato de medroxiprogesterona misc programmed farrowing misc alive/total born piglets ratio misc medroxyprogesterone acetate misc Agriculture misc S misc Agriculture (General) |
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Delaying farrowing using intravaginal devices impregnated with progestagen does not affect the proportion of piglets born alive O atraso do parto utilizando dispositivos intravaginais impregnados com progestágeno não afeta a proporção de leitões nascidos vivos |
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Delaying farrowing using intravaginal devices impregnated with progestagen does not affect the proportion of piglets born alive O atraso do parto utilizando dispositivos intravaginais impregnados com progestágeno não afeta a proporção de leitões nascidos vivos |
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Gabriel Fernando Freling Bernardo Garziera Gasperin Rogério Ferreira Matheus Pedroti Cesaro João Francisco Oliveira Vilceu Bordignon Paulo Bayard Dias Gonçalves |
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delaying farrowing using intravaginal devices impregnated with progestagen does not affect the proportion of piglets born alive o atraso do parto utilizando dispositivos intravaginais impregnados com progestágeno não afeta a proporção de leitões nascidos vivos |
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Delaying farrowing using intravaginal devices impregnated with progestagen does not affect the proportion of piglets born alive O atraso do parto utilizando dispositivos intravaginais impregnados com progestágeno não afeta a proporção de leitões nascidos vivos |
| abstract |
The objective of this study was to evaluate the efficiency of progestagen intravaginal devices (IVDs) in preventing parturition in sows by determining the effect of delaying parturition on the alive/total born piglets ratio. Evaluations of IVDs containing 0.5, 1.0 or 1.5g progesterone (P4) showed they were not effective in delaying parturition at any dosage tested. In a second experiment, seventy-five sows at day 112 of pregnancy were equally distributed (n=15 per group) in the following treatments: prostaglandin (PGF2α; 250µg sodium cloprostenol; control group) or PGF2α and simultaneous insertion of an IVD containing medroxyprogesterone acetate (MPA) for 48h. Control sows initiated labor 27.7±1.6h after PGF2α injection. The mean time (±SEM) between PGF2α administration and parturition was 72.1±8.8h, 72.7±3.8h, 82.7±7.1h and 81.8±3.5h for MPA 100, 200, 400 and 800mg, respectively, differing from control group (P<0.05). To evaluate the effect of delaying parturition on the alive/total born piglets ratio at birth, sows between days 109 and 112 of gestation received IVDs containing 800mg MPA (on Thursdays) for 72h to prevent parturition in weekends and then were treated with PGF2α at the time of device withdrawal (on Sundays). The alive/total born piglets ratio was 89.0±1.6, 90.1±1.2 and 89.0±1.5% for control (Normal group; n=57 sows), PGF2α-induced (Induced group; n=57 sows), and IVD+PGF2α-induced (MPA800 group, n=56 sows) groups, respectively (P<0.05). These findings confirm that IVDs impregnated with MPA can effectively prevent parturition in sows without affecting the alive/total born piglets ratio and therefore represent an alternative to avoid weekend farrowing in swine herds.<br<O objetivo do presente estudo foi avaliar a eficiência de dispositivos intravaginais (DIVs) contendo progestágeno na prevenção do parto e determinar o efeito do atraso do parto sobre a proporção de leitões vivos/nascidos totais. DIVs contendo 0,5, 1,0 ou 1,5g de progesterona (P4) não foram eficientes na prevenção do parto em nenhuma das doses. No experimento 2, setenta e cinco porcas aos 112 dias de gestação foram equilibradamente distribuídas (n=15 por grupo) nos seguintes tratamentos: prostaglandina (PGF2α; 250µg cloprostenol sódico; grupo controle) ou PGF2α e simultânea inserção de DIV contendo acetato de medroxiprogesterona (MAP) por 48h. Fêmeas do grupo controle iniciaram o parto 27,7±1,6h após injeção de PGF2α. O tempo médio entre a administração de PGF2α e início do parto foi 72,1±8,8h, 72,7±3,8h, 82,7±7,1h e 81,8±3,5h para os grupos MAP 100, 200, 400 e 800mg, respectivamente, diferindo do grupo controle (P<0,05). Para avaliar o efeito da inibição do parto sobre a proporção de leitões nascidos vivos, porcas entre 109 e 112 dias de gestação receberam DIVs contendo 800mg MAP (quintas-feiras) por 72h para prevenir o parto aos finais de semana e foram tratadas com PGF2α no momento da retirada dos DIV (aos domingos). A razão leitões vivos/nascidos totais foi 89,0±1,6, 90,1±1,2 e 89,0±1,5% nos grupos controle (Normal; n=57 porcas), induzido com PGF2α (Induzido; n=57 porcas) e PGF2α+DIV (MPA800; n=56 porcas), respectivamente (P<0,05). Esses resultados confirmam que DIVs contendo MAP podem efetivamente inibir o início do parto em porcas sem afetar a proporção de leitões nascidos vivos e, portanto, representam uma alternativa para evitar partos aos finais de semana. |
| abstractGer |
The objective of this study was to evaluate the efficiency of progestagen intravaginal devices (IVDs) in preventing parturition in sows by determining the effect of delaying parturition on the alive/total born piglets ratio. Evaluations of IVDs containing 0.5, 1.0 or 1.5g progesterone (P4) showed they were not effective in delaying parturition at any dosage tested. In a second experiment, seventy-five sows at day 112 of pregnancy were equally distributed (n=15 per group) in the following treatments: prostaglandin (PGF2α; 250µg sodium cloprostenol; control group) or PGF2α and simultaneous insertion of an IVD containing medroxyprogesterone acetate (MPA) for 48h. Control sows initiated labor 27.7±1.6h after PGF2α injection. The mean time (±SEM) between PGF2α administration and parturition was 72.1±8.8h, 72.7±3.8h, 82.7±7.1h and 81.8±3.5h for MPA 100, 200, 400 and 800mg, respectively, differing from control group (P<0.05). To evaluate the effect of delaying parturition on the alive/total born piglets ratio at birth, sows between days 109 and 112 of gestation received IVDs containing 800mg MPA (on Thursdays) for 72h to prevent parturition in weekends and then were treated with PGF2α at the time of device withdrawal (on Sundays). The alive/total born piglets ratio was 89.0±1.6, 90.1±1.2 and 89.0±1.5% for control (Normal group; n=57 sows), PGF2α-induced (Induced group; n=57 sows), and IVD+PGF2α-induced (MPA800 group, n=56 sows) groups, respectively (P<0.05). These findings confirm that IVDs impregnated with MPA can effectively prevent parturition in sows without affecting the alive/total born piglets ratio and therefore represent an alternative to avoid weekend farrowing in swine herds.<br<O objetivo do presente estudo foi avaliar a eficiência de dispositivos intravaginais (DIVs) contendo progestágeno na prevenção do parto e determinar o efeito do atraso do parto sobre a proporção de leitões vivos/nascidos totais. DIVs contendo 0,5, 1,0 ou 1,5g de progesterona (P4) não foram eficientes na prevenção do parto em nenhuma das doses. No experimento 2, setenta e cinco porcas aos 112 dias de gestação foram equilibradamente distribuídas (n=15 por grupo) nos seguintes tratamentos: prostaglandina (PGF2α; 250µg cloprostenol sódico; grupo controle) ou PGF2α e simultânea inserção de DIV contendo acetato de medroxiprogesterona (MAP) por 48h. Fêmeas do grupo controle iniciaram o parto 27,7±1,6h após injeção de PGF2α. O tempo médio entre a administração de PGF2α e início do parto foi 72,1±8,8h, 72,7±3,8h, 82,7±7,1h e 81,8±3,5h para os grupos MAP 100, 200, 400 e 800mg, respectivamente, diferindo do grupo controle (P<0,05). Para avaliar o efeito da inibição do parto sobre a proporção de leitões nascidos vivos, porcas entre 109 e 112 dias de gestação receberam DIVs contendo 800mg MAP (quintas-feiras) por 72h para prevenir o parto aos finais de semana e foram tratadas com PGF2α no momento da retirada dos DIV (aos domingos). A razão leitões vivos/nascidos totais foi 89,0±1,6, 90,1±1,2 e 89,0±1,5% nos grupos controle (Normal; n=57 porcas), induzido com PGF2α (Induzido; n=57 porcas) e PGF2α+DIV (MPA800; n=56 porcas), respectivamente (P<0,05). Esses resultados confirmam que DIVs contendo MAP podem efetivamente inibir o início do parto em porcas sem afetar a proporção de leitões nascidos vivos e, portanto, representam uma alternativa para evitar partos aos finais de semana. |
| abstract_unstemmed |
The objective of this study was to evaluate the efficiency of progestagen intravaginal devices (IVDs) in preventing parturition in sows by determining the effect of delaying parturition on the alive/total born piglets ratio. Evaluations of IVDs containing 0.5, 1.0 or 1.5g progesterone (P4) showed they were not effective in delaying parturition at any dosage tested. In a second experiment, seventy-five sows at day 112 of pregnancy were equally distributed (n=15 per group) in the following treatments: prostaglandin (PGF2α; 250µg sodium cloprostenol; control group) or PGF2α and simultaneous insertion of an IVD containing medroxyprogesterone acetate (MPA) for 48h. Control sows initiated labor 27.7±1.6h after PGF2α injection. The mean time (±SEM) between PGF2α administration and parturition was 72.1±8.8h, 72.7±3.8h, 82.7±7.1h and 81.8±3.5h for MPA 100, 200, 400 and 800mg, respectively, differing from control group (P<0.05). To evaluate the effect of delaying parturition on the alive/total born piglets ratio at birth, sows between days 109 and 112 of gestation received IVDs containing 800mg MPA (on Thursdays) for 72h to prevent parturition in weekends and then were treated with PGF2α at the time of device withdrawal (on Sundays). The alive/total born piglets ratio was 89.0±1.6, 90.1±1.2 and 89.0±1.5% for control (Normal group; n=57 sows), PGF2α-induced (Induced group; n=57 sows), and IVD+PGF2α-induced (MPA800 group, n=56 sows) groups, respectively (P<0.05). These findings confirm that IVDs impregnated with MPA can effectively prevent parturition in sows without affecting the alive/total born piglets ratio and therefore represent an alternative to avoid weekend farrowing in swine herds.<br<O objetivo do presente estudo foi avaliar a eficiência de dispositivos intravaginais (DIVs) contendo progestágeno na prevenção do parto e determinar o efeito do atraso do parto sobre a proporção de leitões vivos/nascidos totais. DIVs contendo 0,5, 1,0 ou 1,5g de progesterona (P4) não foram eficientes na prevenção do parto em nenhuma das doses. No experimento 2, setenta e cinco porcas aos 112 dias de gestação foram equilibradamente distribuídas (n=15 por grupo) nos seguintes tratamentos: prostaglandina (PGF2α; 250µg cloprostenol sódico; grupo controle) ou PGF2α e simultânea inserção de DIV contendo acetato de medroxiprogesterona (MAP) por 48h. Fêmeas do grupo controle iniciaram o parto 27,7±1,6h após injeção de PGF2α. O tempo médio entre a administração de PGF2α e início do parto foi 72,1±8,8h, 72,7±3,8h, 82,7±7,1h e 81,8±3,5h para os grupos MAP 100, 200, 400 e 800mg, respectivamente, diferindo do grupo controle (P<0,05). Para avaliar o efeito da inibição do parto sobre a proporção de leitões nascidos vivos, porcas entre 109 e 112 dias de gestação receberam DIVs contendo 800mg MAP (quintas-feiras) por 72h para prevenir o parto aos finais de semana e foram tratadas com PGF2α no momento da retirada dos DIV (aos domingos). A razão leitões vivos/nascidos totais foi 89,0±1,6, 90,1±1,2 e 89,0±1,5% nos grupos controle (Normal; n=57 porcas), induzido com PGF2α (Induzido; n=57 porcas) e PGF2α+DIV (MPA800; n=56 porcas), respectivamente (P<0,05). Esses resultados confirmam que DIVs contendo MAP podem efetivamente inibir o início do parto em porcas sem afetar a proporção de leitões nascidos vivos e, portanto, representam uma alternativa para evitar partos aos finais de semana. |
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Delaying farrowing using intravaginal devices impregnated with progestagen does not affect the proportion of piglets born alive O atraso do parto utilizando dispositivos intravaginais impregnados com progestágeno não afeta a proporção de leitões nascidos vivos |
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https://doaj.org/article/5c773e3d9c214482bdbe2b1ebcdf114a http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782013005000077 https://doaj.org/toc/0103-8478 https://doaj.org/toc/1678-4596 |
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Bernardo Garziera Gasperin Rogério Ferreira Matheus Pedroti Cesaro João Francisco Oliveira Vilceu Bordignon Paulo Bayard Dias Gonçalves |
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Bernardo Garziera Gasperin Rogério Ferreira Matheus Pedroti Cesaro João Francisco Oliveira Vilceu Bordignon Paulo Bayard Dias Gonçalves |
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