A field study on artificial insemination of swamp and crossbred buffaloes with sexed semen from river buffaloes
Sex preselection by flow sorting of X- and Y-sperm has been proven to be an efficient and economically feasible strategy for use in Holstein dairy cow breeding, and previous reports have demonstrated the feasibility of altering the sex ratio in buffalo species by using sexed semen in either artifici...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Lu, Yangqing [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2015transfer abstract |
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| Schlagwörter: |
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| Umfang: |
6 |
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| Übergeordnetes Werk: |
Enthalten in: Multi-source monitoring information fusion method for dam health diagnosis based on Wasserstein distance - Chen, Anyi ELSEVIER, 2023, an international journal of animal reproduction, Amsterdam [u.a.] |
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| Übergeordnetes Werk: |
volume:84 ; year:2015 ; number:6 ; day:1 ; month:10 ; pages:862-867 ; extent:6 |
| Links: |
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| DOI / URN: |
10.1016/j.theriogenology.2015.05.022 |
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| 245 | 1 | 0 | |a A field study on artificial insemination of swamp and crossbred buffaloes with sexed semen from river buffaloes |
| 264 | 1 | |c 2015transfer abstract | |
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| 520 | |a Sex preselection by flow sorting of X- and Y-sperm has been proven to be an efficient and economically feasible strategy for use in Holstein dairy cow breeding, and previous reports have demonstrated the feasibility of altering the sex ratio in buffalo species by using sexed semen in either artificial insemination or IVF. However, because buffalo reproductive physiology and farm management are different from Holsteins, factors involved in artificial insemination by sexed semen need to be further addressed before being applied in buffalo breeding at village-level husbandry. In this study, a total of 4521 swamp or crossbred (F1 or F2) buffaloes with natural estrus were inseminated with X-sorted sperm from river buffaloes, resulting in a 48.5% (2194 of 4521) pregnancy rate and 87.6% (1895 of 2163) sex accuracy in the derived calves. The pregnancy rate obtained with sexed semen from Murrah bulls was higher than that of Nili-Ravi, 52.5% (895 of 1706) versus 46.1% (1299 of 2815; P < 0.01), respectively. Also, significant variations were seen in pregnancy rates from inseminations performed in different seasons (P < 0.01) and by different technicians (P < 0.01). In contrast to Holsteins, no difference was seen in the pregnancy rate between heifers and parous buffalo cows, and buffalo cows with different genetic backgrounds (swamp type, crossbred F1 and F2) showed similar fertility after insemination with sexed semen. The findings in the present study under field conditions pave the way for application of sexing technology to buffalo breeding under village-level husbandry and diverse genetic backgrounds. | ||
| 520 | |a Sex preselection by flow sorting of X- and Y-sperm has been proven to be an efficient and economically feasible strategy for use in Holstein dairy cow breeding, and previous reports have demonstrated the feasibility of altering the sex ratio in buffalo species by using sexed semen in either artificial insemination or IVF. However, because buffalo reproductive physiology and farm management are different from Holsteins, factors involved in artificial insemination by sexed semen need to be further addressed before being applied in buffalo breeding at village-level husbandry. In this study, a total of 4521 swamp or crossbred (F1 or F2) buffaloes with natural estrus were inseminated with X-sorted sperm from river buffaloes, resulting in a 48.5% (2194 of 4521) pregnancy rate and 87.6% (1895 of 2163) sex accuracy in the derived calves. The pregnancy rate obtained with sexed semen from Murrah bulls was higher than that of Nili-Ravi, 52.5% (895 of 1706) versus 46.1% (1299 of 2815; P < 0.01), respectively. Also, significant variations were seen in pregnancy rates from inseminations performed in different seasons (P < 0.01) and by different technicians (P < 0.01). In contrast to Holsteins, no difference was seen in the pregnancy rate between heifers and parous buffalo cows, and buffalo cows with different genetic backgrounds (swamp type, crossbred F1 and F2) showed similar fertility after insemination with sexed semen. The findings in the present study under field conditions pave the way for application of sexing technology to buffalo breeding under village-level husbandry and diverse genetic backgrounds. | ||
| 650 | 7 | |a Sexed semen |2 Elsevier | |
| 650 | 7 | |a Artificial insemination |2 Elsevier | |
| 650 | 7 | |a Buffalo |2 Elsevier | |
| 700 | 1 | |a Liao, Yanqiong |4 oth | |
| 700 | 1 | |a Zhang, Ming |4 oth | |
| 700 | 1 | |a Yang, Bingzhuang |4 oth | |
| 700 | 1 | |a Liang, Xianwei |4 oth | |
| 700 | 1 | |a Yang, Xiaogan |4 oth | |
| 700 | 1 | |a Lu, Shengsheng |4 oth | |
| 700 | 1 | |a Wu, Zhuyue |4 oth | |
| 700 | 1 | |a Xu, Huiyan |4 oth | |
| 700 | 1 | |a Liang, Yunbin |4 oth | |
| 700 | 1 | |a Lu, Kehuan |4 oth | |
| 773 | 0 | 8 | |i Enthalten in |n Elsevier Science |a Chen, Anyi ELSEVIER |t Multi-source monitoring information fusion method for dam health diagnosis based on Wasserstein distance |d 2023 |d an international journal of animal reproduction |g Amsterdam [u.a.] |w (DE-627)ELV009476539 |
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10.1016/j.theriogenology.2015.05.022 doi GBVA2015002000026.pica (DE-627)ELV028640853 (ELSEVIER)S0093-691X(15)00286-1 DE-627 ger DE-627 rakwb eng 590 590 DE-600 070 004 VZ LING DE-30 fid 54.00 bkl 53.71 bkl Lu, Yangqing verfasserin aut A field study on artificial insemination of swamp and crossbred buffaloes with sexed semen from river buffaloes 2015transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Sex preselection by flow sorting of X- and Y-sperm has been proven to be an efficient and economically feasible strategy for use in Holstein dairy cow breeding, and previous reports have demonstrated the feasibility of altering the sex ratio in buffalo species by using sexed semen in either artificial insemination or IVF. However, because buffalo reproductive physiology and farm management are different from Holsteins, factors involved in artificial insemination by sexed semen need to be further addressed before being applied in buffalo breeding at village-level husbandry. In this study, a total of 4521 swamp or crossbred (F1 or F2) buffaloes with natural estrus were inseminated with X-sorted sperm from river buffaloes, resulting in a 48.5% (2194 of 4521) pregnancy rate and 87.6% (1895 of 2163) sex accuracy in the derived calves. The pregnancy rate obtained with sexed semen from Murrah bulls was higher than that of Nili-Ravi, 52.5% (895 of 1706) versus 46.1% (1299 of 2815; P < 0.01), respectively. Also, significant variations were seen in pregnancy rates from inseminations performed in different seasons (P < 0.01) and by different technicians (P < 0.01). In contrast to Holsteins, no difference was seen in the pregnancy rate between heifers and parous buffalo cows, and buffalo cows with different genetic backgrounds (swamp type, crossbred F1 and F2) showed similar fertility after insemination with sexed semen. The findings in the present study under field conditions pave the way for application of sexing technology to buffalo breeding under village-level husbandry and diverse genetic backgrounds. Sex preselection by flow sorting of X- and Y-sperm has been proven to be an efficient and economically feasible strategy for use in Holstein dairy cow breeding, and previous reports have demonstrated the feasibility of altering the sex ratio in buffalo species by using sexed semen in either artificial insemination or IVF. However, because buffalo reproductive physiology and farm management are different from Holsteins, factors involved in artificial insemination by sexed semen need to be further addressed before being applied in buffalo breeding at village-level husbandry. In this study, a total of 4521 swamp or crossbred (F1 or F2) buffaloes with natural estrus were inseminated with X-sorted sperm from river buffaloes, resulting in a 48.5% (2194 of 4521) pregnancy rate and 87.6% (1895 of 2163) sex accuracy in the derived calves. The pregnancy rate obtained with sexed semen from Murrah bulls was higher than that of Nili-Ravi, 52.5% (895 of 1706) versus 46.1% (1299 of 2815; P < 0.01), respectively. Also, significant variations were seen in pregnancy rates from inseminations performed in different seasons (P < 0.01) and by different technicians (P < 0.01). In contrast to Holsteins, no difference was seen in the pregnancy rate between heifers and parous buffalo cows, and buffalo cows with different genetic backgrounds (swamp type, crossbred F1 and F2) showed similar fertility after insemination with sexed semen. The findings in the present study under field conditions pave the way for application of sexing technology to buffalo breeding under village-level husbandry and diverse genetic backgrounds. Sexed semen Elsevier Artificial insemination Elsevier Buffalo Elsevier Liao, Yanqiong oth Zhang, Ming oth Yang, Bingzhuang oth Liang, Xianwei oth Yang, Xiaogan oth Lu, Shengsheng oth Wu, Zhuyue oth Xu, Huiyan oth Liang, Yunbin oth Lu, Kehuan oth Enthalten in Elsevier Science Chen, Anyi ELSEVIER Multi-source monitoring information fusion method for dam health diagnosis based on Wasserstein distance 2023 an international journal of animal reproduction Amsterdam [u.a.] (DE-627)ELV009476539 volume:84 year:2015 number:6 day:1 month:10 pages:862-867 extent:6 https://doi.org/10.1016/j.theriogenology.2015.05.022 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-LING SSG-OPC-BBI 54.00 Informatik: Allgemeines VZ 53.71 Theoretische Nachrichtentechnik VZ AR 84 2015 6 1 1001 862-867 6 045F 590 |
| spelling |
10.1016/j.theriogenology.2015.05.022 doi GBVA2015002000026.pica (DE-627)ELV028640853 (ELSEVIER)S0093-691X(15)00286-1 DE-627 ger DE-627 rakwb eng 590 590 DE-600 070 004 VZ LING DE-30 fid 54.00 bkl 53.71 bkl Lu, Yangqing verfasserin aut A field study on artificial insemination of swamp and crossbred buffaloes with sexed semen from river buffaloes 2015transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Sex preselection by flow sorting of X- and Y-sperm has been proven to be an efficient and economically feasible strategy for use in Holstein dairy cow breeding, and previous reports have demonstrated the feasibility of altering the sex ratio in buffalo species by using sexed semen in either artificial insemination or IVF. However, because buffalo reproductive physiology and farm management are different from Holsteins, factors involved in artificial insemination by sexed semen need to be further addressed before being applied in buffalo breeding at village-level husbandry. In this study, a total of 4521 swamp or crossbred (F1 or F2) buffaloes with natural estrus were inseminated with X-sorted sperm from river buffaloes, resulting in a 48.5% (2194 of 4521) pregnancy rate and 87.6% (1895 of 2163) sex accuracy in the derived calves. The pregnancy rate obtained with sexed semen from Murrah bulls was higher than that of Nili-Ravi, 52.5% (895 of 1706) versus 46.1% (1299 of 2815; P < 0.01), respectively. Also, significant variations were seen in pregnancy rates from inseminations performed in different seasons (P < 0.01) and by different technicians (P < 0.01). In contrast to Holsteins, no difference was seen in the pregnancy rate between heifers and parous buffalo cows, and buffalo cows with different genetic backgrounds (swamp type, crossbred F1 and F2) showed similar fertility after insemination with sexed semen. The findings in the present study under field conditions pave the way for application of sexing technology to buffalo breeding under village-level husbandry and diverse genetic backgrounds. Sex preselection by flow sorting of X- and Y-sperm has been proven to be an efficient and economically feasible strategy for use in Holstein dairy cow breeding, and previous reports have demonstrated the feasibility of altering the sex ratio in buffalo species by using sexed semen in either artificial insemination or IVF. However, because buffalo reproductive physiology and farm management are different from Holsteins, factors involved in artificial insemination by sexed semen need to be further addressed before being applied in buffalo breeding at village-level husbandry. In this study, a total of 4521 swamp or crossbred (F1 or F2) buffaloes with natural estrus were inseminated with X-sorted sperm from river buffaloes, resulting in a 48.5% (2194 of 4521) pregnancy rate and 87.6% (1895 of 2163) sex accuracy in the derived calves. The pregnancy rate obtained with sexed semen from Murrah bulls was higher than that of Nili-Ravi, 52.5% (895 of 1706) versus 46.1% (1299 of 2815; P < 0.01), respectively. Also, significant variations were seen in pregnancy rates from inseminations performed in different seasons (P < 0.01) and by different technicians (P < 0.01). In contrast to Holsteins, no difference was seen in the pregnancy rate between heifers and parous buffalo cows, and buffalo cows with different genetic backgrounds (swamp type, crossbred F1 and F2) showed similar fertility after insemination with sexed semen. The findings in the present study under field conditions pave the way for application of sexing technology to buffalo breeding under village-level husbandry and diverse genetic backgrounds. Sexed semen Elsevier Artificial insemination Elsevier Buffalo Elsevier Liao, Yanqiong oth Zhang, Ming oth Yang, Bingzhuang oth Liang, Xianwei oth Yang, Xiaogan oth Lu, Shengsheng oth Wu, Zhuyue oth Xu, Huiyan oth Liang, Yunbin oth Lu, Kehuan oth Enthalten in Elsevier Science Chen, Anyi ELSEVIER Multi-source monitoring information fusion method for dam health diagnosis based on Wasserstein distance 2023 an international journal of animal reproduction Amsterdam [u.a.] (DE-627)ELV009476539 volume:84 year:2015 number:6 day:1 month:10 pages:862-867 extent:6 https://doi.org/10.1016/j.theriogenology.2015.05.022 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-LING SSG-OPC-BBI 54.00 Informatik: Allgemeines VZ 53.71 Theoretische Nachrichtentechnik VZ AR 84 2015 6 1 1001 862-867 6 045F 590 |
| allfields_unstemmed |
10.1016/j.theriogenology.2015.05.022 doi GBVA2015002000026.pica (DE-627)ELV028640853 (ELSEVIER)S0093-691X(15)00286-1 DE-627 ger DE-627 rakwb eng 590 590 DE-600 070 004 VZ LING DE-30 fid 54.00 bkl 53.71 bkl Lu, Yangqing verfasserin aut A field study on artificial insemination of swamp and crossbred buffaloes with sexed semen from river buffaloes 2015transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Sex preselection by flow sorting of X- and Y-sperm has been proven to be an efficient and economically feasible strategy for use in Holstein dairy cow breeding, and previous reports have demonstrated the feasibility of altering the sex ratio in buffalo species by using sexed semen in either artificial insemination or IVF. However, because buffalo reproductive physiology and farm management are different from Holsteins, factors involved in artificial insemination by sexed semen need to be further addressed before being applied in buffalo breeding at village-level husbandry. In this study, a total of 4521 swamp or crossbred (F1 or F2) buffaloes with natural estrus were inseminated with X-sorted sperm from river buffaloes, resulting in a 48.5% (2194 of 4521) pregnancy rate and 87.6% (1895 of 2163) sex accuracy in the derived calves. The pregnancy rate obtained with sexed semen from Murrah bulls was higher than that of Nili-Ravi, 52.5% (895 of 1706) versus 46.1% (1299 of 2815; P < 0.01), respectively. Also, significant variations were seen in pregnancy rates from inseminations performed in different seasons (P < 0.01) and by different technicians (P < 0.01). In contrast to Holsteins, no difference was seen in the pregnancy rate between heifers and parous buffalo cows, and buffalo cows with different genetic backgrounds (swamp type, crossbred F1 and F2) showed similar fertility after insemination with sexed semen. The findings in the present study under field conditions pave the way for application of sexing technology to buffalo breeding under village-level husbandry and diverse genetic backgrounds. Sex preselection by flow sorting of X- and Y-sperm has been proven to be an efficient and economically feasible strategy for use in Holstein dairy cow breeding, and previous reports have demonstrated the feasibility of altering the sex ratio in buffalo species by using sexed semen in either artificial insemination or IVF. However, because buffalo reproductive physiology and farm management are different from Holsteins, factors involved in artificial insemination by sexed semen need to be further addressed before being applied in buffalo breeding at village-level husbandry. In this study, a total of 4521 swamp or crossbred (F1 or F2) buffaloes with natural estrus were inseminated with X-sorted sperm from river buffaloes, resulting in a 48.5% (2194 of 4521) pregnancy rate and 87.6% (1895 of 2163) sex accuracy in the derived calves. The pregnancy rate obtained with sexed semen from Murrah bulls was higher than that of Nili-Ravi, 52.5% (895 of 1706) versus 46.1% (1299 of 2815; P < 0.01), respectively. Also, significant variations were seen in pregnancy rates from inseminations performed in different seasons (P < 0.01) and by different technicians (P < 0.01). In contrast to Holsteins, no difference was seen in the pregnancy rate between heifers and parous buffalo cows, and buffalo cows with different genetic backgrounds (swamp type, crossbred F1 and F2) showed similar fertility after insemination with sexed semen. The findings in the present study under field conditions pave the way for application of sexing technology to buffalo breeding under village-level husbandry and diverse genetic backgrounds. Sexed semen Elsevier Artificial insemination Elsevier Buffalo Elsevier Liao, Yanqiong oth Zhang, Ming oth Yang, Bingzhuang oth Liang, Xianwei oth Yang, Xiaogan oth Lu, Shengsheng oth Wu, Zhuyue oth Xu, Huiyan oth Liang, Yunbin oth Lu, Kehuan oth Enthalten in Elsevier Science Chen, Anyi ELSEVIER Multi-source monitoring information fusion method for dam health diagnosis based on Wasserstein distance 2023 an international journal of animal reproduction Amsterdam [u.a.] (DE-627)ELV009476539 volume:84 year:2015 number:6 day:1 month:10 pages:862-867 extent:6 https://doi.org/10.1016/j.theriogenology.2015.05.022 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-LING SSG-OPC-BBI 54.00 Informatik: Allgemeines VZ 53.71 Theoretische Nachrichtentechnik VZ AR 84 2015 6 1 1001 862-867 6 045F 590 |
| allfieldsGer |
10.1016/j.theriogenology.2015.05.022 doi GBVA2015002000026.pica (DE-627)ELV028640853 (ELSEVIER)S0093-691X(15)00286-1 DE-627 ger DE-627 rakwb eng 590 590 DE-600 070 004 VZ LING DE-30 fid 54.00 bkl 53.71 bkl Lu, Yangqing verfasserin aut A field study on artificial insemination of swamp and crossbred buffaloes with sexed semen from river buffaloes 2015transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Sex preselection by flow sorting of X- and Y-sperm has been proven to be an efficient and economically feasible strategy for use in Holstein dairy cow breeding, and previous reports have demonstrated the feasibility of altering the sex ratio in buffalo species by using sexed semen in either artificial insemination or IVF. However, because buffalo reproductive physiology and farm management are different from Holsteins, factors involved in artificial insemination by sexed semen need to be further addressed before being applied in buffalo breeding at village-level husbandry. In this study, a total of 4521 swamp or crossbred (F1 or F2) buffaloes with natural estrus were inseminated with X-sorted sperm from river buffaloes, resulting in a 48.5% (2194 of 4521) pregnancy rate and 87.6% (1895 of 2163) sex accuracy in the derived calves. The pregnancy rate obtained with sexed semen from Murrah bulls was higher than that of Nili-Ravi, 52.5% (895 of 1706) versus 46.1% (1299 of 2815; P < 0.01), respectively. Also, significant variations were seen in pregnancy rates from inseminations performed in different seasons (P < 0.01) and by different technicians (P < 0.01). In contrast to Holsteins, no difference was seen in the pregnancy rate between heifers and parous buffalo cows, and buffalo cows with different genetic backgrounds (swamp type, crossbred F1 and F2) showed similar fertility after insemination with sexed semen. The findings in the present study under field conditions pave the way for application of sexing technology to buffalo breeding under village-level husbandry and diverse genetic backgrounds. Sex preselection by flow sorting of X- and Y-sperm has been proven to be an efficient and economically feasible strategy for use in Holstein dairy cow breeding, and previous reports have demonstrated the feasibility of altering the sex ratio in buffalo species by using sexed semen in either artificial insemination or IVF. However, because buffalo reproductive physiology and farm management are different from Holsteins, factors involved in artificial insemination by sexed semen need to be further addressed before being applied in buffalo breeding at village-level husbandry. In this study, a total of 4521 swamp or crossbred (F1 or F2) buffaloes with natural estrus were inseminated with X-sorted sperm from river buffaloes, resulting in a 48.5% (2194 of 4521) pregnancy rate and 87.6% (1895 of 2163) sex accuracy in the derived calves. The pregnancy rate obtained with sexed semen from Murrah bulls was higher than that of Nili-Ravi, 52.5% (895 of 1706) versus 46.1% (1299 of 2815; P < 0.01), respectively. Also, significant variations were seen in pregnancy rates from inseminations performed in different seasons (P < 0.01) and by different technicians (P < 0.01). In contrast to Holsteins, no difference was seen in the pregnancy rate between heifers and parous buffalo cows, and buffalo cows with different genetic backgrounds (swamp type, crossbred F1 and F2) showed similar fertility after insemination with sexed semen. The findings in the present study under field conditions pave the way for application of sexing technology to buffalo breeding under village-level husbandry and diverse genetic backgrounds. Sexed semen Elsevier Artificial insemination Elsevier Buffalo Elsevier Liao, Yanqiong oth Zhang, Ming oth Yang, Bingzhuang oth Liang, Xianwei oth Yang, Xiaogan oth Lu, Shengsheng oth Wu, Zhuyue oth Xu, Huiyan oth Liang, Yunbin oth Lu, Kehuan oth Enthalten in Elsevier Science Chen, Anyi ELSEVIER Multi-source monitoring information fusion method for dam health diagnosis based on Wasserstein distance 2023 an international journal of animal reproduction Amsterdam [u.a.] (DE-627)ELV009476539 volume:84 year:2015 number:6 day:1 month:10 pages:862-867 extent:6 https://doi.org/10.1016/j.theriogenology.2015.05.022 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-LING SSG-OPC-BBI 54.00 Informatik: Allgemeines VZ 53.71 Theoretische Nachrichtentechnik VZ AR 84 2015 6 1 1001 862-867 6 045F 590 |
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A field study on artificial insemination of swamp and crossbred buffaloes with sexed semen from river buffaloes |
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Sex preselection by flow sorting of X- and Y-sperm has been proven to be an efficient and economically feasible strategy for use in Holstein dairy cow breeding, and previous reports have demonstrated the feasibility of altering the sex ratio in buffalo species by using sexed semen in either artificial insemination or IVF. However, because buffalo reproductive physiology and farm management are different from Holsteins, factors involved in artificial insemination by sexed semen need to be further addressed before being applied in buffalo breeding at village-level husbandry. In this study, a total of 4521 swamp or crossbred (F1 or F2) buffaloes with natural estrus were inseminated with X-sorted sperm from river buffaloes, resulting in a 48.5% (2194 of 4521) pregnancy rate and 87.6% (1895 of 2163) sex accuracy in the derived calves. The pregnancy rate obtained with sexed semen from Murrah bulls was higher than that of Nili-Ravi, 52.5% (895 of 1706) versus 46.1% (1299 of 2815; P < 0.01), respectively. Also, significant variations were seen in pregnancy rates from inseminations performed in different seasons (P < 0.01) and by different technicians (P < 0.01). In contrast to Holsteins, no difference was seen in the pregnancy rate between heifers and parous buffalo cows, and buffalo cows with different genetic backgrounds (swamp type, crossbred F1 and F2) showed similar fertility after insemination with sexed semen. The findings in the present study under field conditions pave the way for application of sexing technology to buffalo breeding under village-level husbandry and diverse genetic backgrounds. |
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Sex preselection by flow sorting of X- and Y-sperm has been proven to be an efficient and economically feasible strategy for use in Holstein dairy cow breeding, and previous reports have demonstrated the feasibility of altering the sex ratio in buffalo species by using sexed semen in either artificial insemination or IVF. However, because buffalo reproductive physiology and farm management are different from Holsteins, factors involved in artificial insemination by sexed semen need to be further addressed before being applied in buffalo breeding at village-level husbandry. In this study, a total of 4521 swamp or crossbred (F1 or F2) buffaloes with natural estrus were inseminated with X-sorted sperm from river buffaloes, resulting in a 48.5% (2194 of 4521) pregnancy rate and 87.6% (1895 of 2163) sex accuracy in the derived calves. The pregnancy rate obtained with sexed semen from Murrah bulls was higher than that of Nili-Ravi, 52.5% (895 of 1706) versus 46.1% (1299 of 2815; P < 0.01), respectively. Also, significant variations were seen in pregnancy rates from inseminations performed in different seasons (P < 0.01) and by different technicians (P < 0.01). In contrast to Holsteins, no difference was seen in the pregnancy rate between heifers and parous buffalo cows, and buffalo cows with different genetic backgrounds (swamp type, crossbred F1 and F2) showed similar fertility after insemination with sexed semen. The findings in the present study under field conditions pave the way for application of sexing technology to buffalo breeding under village-level husbandry and diverse genetic backgrounds. |
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Sex preselection by flow sorting of X- and Y-sperm has been proven to be an efficient and economically feasible strategy for use in Holstein dairy cow breeding, and previous reports have demonstrated the feasibility of altering the sex ratio in buffalo species by using sexed semen in either artificial insemination or IVF. However, because buffalo reproductive physiology and farm management are different from Holsteins, factors involved in artificial insemination by sexed semen need to be further addressed before being applied in buffalo breeding at village-level husbandry. In this study, a total of 4521 swamp or crossbred (F1 or F2) buffaloes with natural estrus were inseminated with X-sorted sperm from river buffaloes, resulting in a 48.5% (2194 of 4521) pregnancy rate and 87.6% (1895 of 2163) sex accuracy in the derived calves. The pregnancy rate obtained with sexed semen from Murrah bulls was higher than that of Nili-Ravi, 52.5% (895 of 1706) versus 46.1% (1299 of 2815; P < 0.01), respectively. Also, significant variations were seen in pregnancy rates from inseminations performed in different seasons (P < 0.01) and by different technicians (P < 0.01). In contrast to Holsteins, no difference was seen in the pregnancy rate between heifers and parous buffalo cows, and buffalo cows with different genetic backgrounds (swamp type, crossbred F1 and F2) showed similar fertility after insemination with sexed semen. The findings in the present study under field conditions pave the way for application of sexing technology to buffalo breeding under village-level husbandry and diverse genetic backgrounds. |
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| title_short |
A field study on artificial insemination of swamp and crossbred buffaloes with sexed semen from river buffaloes |
| url |
https://doi.org/10.1016/j.theriogenology.2015.05.022 |
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Liao, Yanqiong Zhang, Ming Yang, Bingzhuang Liang, Xianwei Yang, Xiaogan Lu, Shengsheng Wu, Zhuyue Xu, Huiyan Liang, Yunbin Lu, Kehuan |
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Liao, Yanqiong Zhang, Ming Yang, Bingzhuang Liang, Xianwei Yang, Xiaogan Lu, Shengsheng Wu, Zhuyue Xu, Huiyan Liang, Yunbin Lu, Kehuan |
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10.1016/j.theriogenology.2015.05.022 |
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2024-07-06T19:20:41.544Z |
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