Non-genetic factors affecting calving interval and weaning weight in a buffalo herd located in well drained savannas, Guárico state, Venezuela

The main focus of this research was to evaluate non-genetic factors affecting calving interval (CI) and weaning weight (WW) on a buffalo herd located in well drained savannas of Guárico state, Venezuela. The study involved records (1997-2001) related to monthly frequency of calving (n=486...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	N. Martínez [verfasserIn] B. Birbe [verfasserIn] P. Herrera [verfasserIn] R. Bello [verfasserIn] O. Colmenares [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2010

Schlagwörter:	Calving interval, Weaning weight, Venezuela

Übergeordnetes Werk:	In: Italian Journal of Animal Science - Taylor & Francis Group, 2007, 6(2010), 2s, Seite 1354-1356
Übergeordnetes Werk:	volume:6 ; year:2010 ; number:2s ; pages:1354-1356

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc Journal toc

DOI / URN:	10.4081/ijas.2007.s2.1354

Katalog-ID:	DOAJ052780074

Internformat


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520			\|a The main focus of this research was to evaluate non-genetic factors affecting calving interval (CI) and weaning weight (WW) on a buffalo herd located in well drained savannas of Guárico state, Venezuela. The study involved records (1997-2001) related to monthly frequency of calving (n=486); calving interval (n=365) and weaning weight (n=376). Data analysis included year and calving season, calf sex, cow age and the interactions for CI. For WW, age at weaning was also included in the statistical analysis. Results revealed significant differences for calving distribution per year (P≤0.05) associated with year-on-year climatic factor changes and progressive herd stabilization. CI averaged 378 +- 1.8 (X – +- S.E.) days, with a coefficient of variation (CV) of 7.3% and a significant effect of calving month (P ≤ 0.05). CI frequency distribution for herd showed 75% cows lower than 400 days. Female age at calving was not significant (linear or quadratic) due it was a young herd, with less than 2.6% animals older than 11 years. WW averaged 130.4+-1.9 kg and CV of 24.4%; age to weaning 238.7+-3.2 days, with calving month and age to weaning showing significant effect, while the weight average daily gain was 128g per animal. These findings suggest buffalo’s productive and reproductive potential under tropical conditions.
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allfields	10.4081/ijas.2007.s2.1354 doi (DE-627)DOAJ052780074 (DE-599)DOAJ6b2791bb8bcb4cc3b623babd7b9c097f DE-627 ger DE-627 rakwb eng SF1-1100 N. Martínez verfasserin aut Non-genetic factors affecting calving interval and weaning weight in a buffalo herd located in well drained savannas, Guárico state, Venezuela 2010 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The main focus of this research was to evaluate non-genetic factors affecting calving interval (CI) and weaning weight (WW) on a buffalo herd located in well drained savannas of Guárico state, Venezuela. The study involved records (1997-2001) related to monthly frequency of calving (n=486); calving interval (n=365) and weaning weight (n=376). Data analysis included year and calving season, calf sex, cow age and the interactions for CI. For WW, age at weaning was also included in the statistical analysis. Results revealed significant differences for calving distribution per year (P≤0.05) associated with year-on-year climatic factor changes and progressive herd stabilization. CI averaged 378 +- 1.8 (X – +- S.E.) days, with a coefficient of variation (CV) of 7.3% and a significant effect of calving month (P ≤ 0.05). CI frequency distribution for herd showed 75% cows lower than 400 days. Female age at calving was not significant (linear or quadratic) due it was a young herd, with less than 2.6% animals older than 11 years. WW averaged 130.4+-1.9 kg and CV of 24.4%; age to weaning 238.7+-3.2 days, with calving month and age to weaning showing significant effect, while the weight average daily gain was 128g per animal. These findings suggest buffalo’s productive and reproductive potential under tropical conditions. Calving interval, Weaning weight, Venezuela Animal culture B. Birbe verfasserin aut P. Herrera verfasserin aut R. Bello verfasserin aut O. Colmenares verfasserin aut In Italian Journal of Animal Science Taylor & Francis Group, 2007 6(2010), 2s, Seite 1354-1356 (DE-627)558387608 (DE-600)2408994-1 1828051X nnns volume:6 year:2010 number:2s pages:1354-1356 https://doi.org/10.4081/ijas.2007.s2.1354 kostenfrei https://doaj.org/article/6b2791bb8bcb4cc3b623babd7b9c097f kostenfrei http://www.aspajournal.it/index.php/ijas/article/view/1268 kostenfrei https://doaj.org/toc/1594-4077 Journal toc kostenfrei https://doaj.org/toc/1828-051X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 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_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 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 6 2010 2s 1354-1356
spelling	10.4081/ijas.2007.s2.1354 doi (DE-627)DOAJ052780074 (DE-599)DOAJ6b2791bb8bcb4cc3b623babd7b9c097f DE-627 ger DE-627 rakwb eng SF1-1100 N. Martínez verfasserin aut Non-genetic factors affecting calving interval and weaning weight in a buffalo herd located in well drained savannas, Guárico state, Venezuela 2010 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The main focus of this research was to evaluate non-genetic factors affecting calving interval (CI) and weaning weight (WW) on a buffalo herd located in well drained savannas of Guárico state, Venezuela. The study involved records (1997-2001) related to monthly frequency of calving (n=486); calving interval (n=365) and weaning weight (n=376). Data analysis included year and calving season, calf sex, cow age and the interactions for CI. For WW, age at weaning was also included in the statistical analysis. Results revealed significant differences for calving distribution per year (P≤0.05) associated with year-on-year climatic factor changes and progressive herd stabilization. CI averaged 378 +- 1.8 (X – +- S.E.) days, with a coefficient of variation (CV) of 7.3% and a significant effect of calving month (P ≤ 0.05). CI frequency distribution for herd showed 75% cows lower than 400 days. Female age at calving was not significant (linear or quadratic) due it was a young herd, with less than 2.6% animals older than 11 years. WW averaged 130.4+-1.9 kg and CV of 24.4%; age to weaning 238.7+-3.2 days, with calving month and age to weaning showing significant effect, while the weight average daily gain was 128g per animal. These findings suggest buffalo’s productive and reproductive potential under tropical conditions. Calving interval, Weaning weight, Venezuela Animal culture B. Birbe verfasserin aut P. Herrera verfasserin aut R. Bello verfasserin aut O. Colmenares verfasserin aut In Italian Journal of Animal Science Taylor & Francis Group, 2007 6(2010), 2s, Seite 1354-1356 (DE-627)558387608 (DE-600)2408994-1 1828051X nnns volume:6 year:2010 number:2s pages:1354-1356 https://doi.org/10.4081/ijas.2007.s2.1354 kostenfrei https://doaj.org/article/6b2791bb8bcb4cc3b623babd7b9c097f kostenfrei http://www.aspajournal.it/index.php/ijas/article/view/1268 kostenfrei https://doaj.org/toc/1594-4077 Journal toc kostenfrei https://doaj.org/toc/1828-051X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 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_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 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 6 2010 2s 1354-1356
allfields_unstemmed	10.4081/ijas.2007.s2.1354 doi (DE-627)DOAJ052780074 (DE-599)DOAJ6b2791bb8bcb4cc3b623babd7b9c097f DE-627 ger DE-627 rakwb eng SF1-1100 N. Martínez verfasserin aut Non-genetic factors affecting calving interval and weaning weight in a buffalo herd located in well drained savannas, Guárico state, Venezuela 2010 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The main focus of this research was to evaluate non-genetic factors affecting calving interval (CI) and weaning weight (WW) on a buffalo herd located in well drained savannas of Guárico state, Venezuela. The study involved records (1997-2001) related to monthly frequency of calving (n=486); calving interval (n=365) and weaning weight (n=376). Data analysis included year and calving season, calf sex, cow age and the interactions for CI. For WW, age at weaning was also included in the statistical analysis. Results revealed significant differences for calving distribution per year (P≤0.05) associated with year-on-year climatic factor changes and progressive herd stabilization. CI averaged 378 +- 1.8 (X – +- S.E.) days, with a coefficient of variation (CV) of 7.3% and a significant effect of calving month (P ≤ 0.05). CI frequency distribution for herd showed 75% cows lower than 400 days. Female age at calving was not significant (linear or quadratic) due it was a young herd, with less than 2.6% animals older than 11 years. WW averaged 130.4+-1.9 kg and CV of 24.4%; age to weaning 238.7+-3.2 days, with calving month and age to weaning showing significant effect, while the weight average daily gain was 128g per animal. These findings suggest buffalo’s productive and reproductive potential under tropical conditions. Calving interval, Weaning weight, Venezuela Animal culture B. Birbe verfasserin aut P. Herrera verfasserin aut R. Bello verfasserin aut O. Colmenares verfasserin aut In Italian Journal of Animal Science Taylor & Francis Group, 2007 6(2010), 2s, Seite 1354-1356 (DE-627)558387608 (DE-600)2408994-1 1828051X nnns volume:6 year:2010 number:2s pages:1354-1356 https://doi.org/10.4081/ijas.2007.s2.1354 kostenfrei https://doaj.org/article/6b2791bb8bcb4cc3b623babd7b9c097f kostenfrei http://www.aspajournal.it/index.php/ijas/article/view/1268 kostenfrei https://doaj.org/toc/1594-4077 Journal toc kostenfrei https://doaj.org/toc/1828-051X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 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_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 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 6 2010 2s 1354-1356
allfieldsGer	10.4081/ijas.2007.s2.1354 doi (DE-627)DOAJ052780074 (DE-599)DOAJ6b2791bb8bcb4cc3b623babd7b9c097f DE-627 ger DE-627 rakwb eng SF1-1100 N. Martínez verfasserin aut Non-genetic factors affecting calving interval and weaning weight in a buffalo herd located in well drained savannas, Guárico state, Venezuela 2010 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The main focus of this research was to evaluate non-genetic factors affecting calving interval (CI) and weaning weight (WW) on a buffalo herd located in well drained savannas of Guárico state, Venezuela. The study involved records (1997-2001) related to monthly frequency of calving (n=486); calving interval (n=365) and weaning weight (n=376). Data analysis included year and calving season, calf sex, cow age and the interactions for CI. For WW, age at weaning was also included in the statistical analysis. Results revealed significant differences for calving distribution per year (P≤0.05) associated with year-on-year climatic factor changes and progressive herd stabilization. CI averaged 378 +- 1.8 (X – +- S.E.) days, with a coefficient of variation (CV) of 7.3% and a significant effect of calving month (P ≤ 0.05). CI frequency distribution for herd showed 75% cows lower than 400 days. Female age at calving was not significant (linear or quadratic) due it was a young herd, with less than 2.6% animals older than 11 years. WW averaged 130.4+-1.9 kg and CV of 24.4%; age to weaning 238.7+-3.2 days, with calving month and age to weaning showing significant effect, while the weight average daily gain was 128g per animal. These findings suggest buffalo’s productive and reproductive potential under tropical conditions. Calving interval, Weaning weight, Venezuela Animal culture B. Birbe verfasserin aut P. Herrera verfasserin aut R. Bello verfasserin aut O. Colmenares verfasserin aut In Italian Journal of Animal Science Taylor & Francis Group, 2007 6(2010), 2s, Seite 1354-1356 (DE-627)558387608 (DE-600)2408994-1 1828051X nnns volume:6 year:2010 number:2s pages:1354-1356 https://doi.org/10.4081/ijas.2007.s2.1354 kostenfrei https://doaj.org/article/6b2791bb8bcb4cc3b623babd7b9c097f kostenfrei http://www.aspajournal.it/index.php/ijas/article/view/1268 kostenfrei https://doaj.org/toc/1594-4077 Journal toc kostenfrei https://doaj.org/toc/1828-051X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 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_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 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 6 2010 2s 1354-1356
allfieldsSound	10.4081/ijas.2007.s2.1354 doi (DE-627)DOAJ052780074 (DE-599)DOAJ6b2791bb8bcb4cc3b623babd7b9c097f DE-627 ger DE-627 rakwb eng SF1-1100 N. Martínez verfasserin aut Non-genetic factors affecting calving interval and weaning weight in a buffalo herd located in well drained savannas, Guárico state, Venezuela 2010 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The main focus of this research was to evaluate non-genetic factors affecting calving interval (CI) and weaning weight (WW) on a buffalo herd located in well drained savannas of Guárico state, Venezuela. The study involved records (1997-2001) related to monthly frequency of calving (n=486); calving interval (n=365) and weaning weight (n=376). Data analysis included year and calving season, calf sex, cow age and the interactions for CI. For WW, age at weaning was also included in the statistical analysis. Results revealed significant differences for calving distribution per year (P≤0.05) associated with year-on-year climatic factor changes and progressive herd stabilization. CI averaged 378 +- 1.8 (X – +- S.E.) days, with a coefficient of variation (CV) of 7.3% and a significant effect of calving month (P ≤ 0.05). CI frequency distribution for herd showed 75% cows lower than 400 days. Female age at calving was not significant (linear or quadratic) due it was a young herd, with less than 2.6% animals older than 11 years. WW averaged 130.4+-1.9 kg and CV of 24.4%; age to weaning 238.7+-3.2 days, with calving month and age to weaning showing significant effect, while the weight average daily gain was 128g per animal. These findings suggest buffalo’s productive and reproductive potential under tropical conditions. Calving interval, Weaning weight, Venezuela Animal culture B. Birbe verfasserin aut P. Herrera verfasserin aut R. Bello verfasserin aut O. Colmenares verfasserin aut In Italian Journal of Animal Science Taylor & Francis Group, 2007 6(2010), 2s, Seite 1354-1356 (DE-627)558387608 (DE-600)2408994-1 1828051X nnns volume:6 year:2010 number:2s pages:1354-1356 https://doi.org/10.4081/ijas.2007.s2.1354 kostenfrei https://doaj.org/article/6b2791bb8bcb4cc3b623babd7b9c097f kostenfrei http://www.aspajournal.it/index.php/ijas/article/view/1268 kostenfrei https://doaj.org/toc/1594-4077 Journal toc kostenfrei https://doaj.org/toc/1828-051X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 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_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 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 6 2010 2s 1354-1356
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author	N. Martínez
spellingShingle	N. Martínez misc SF1-1100 misc Calving interval, Weaning weight, Venezuela misc Animal culture Non-genetic factors affecting calving interval and weaning weight in a buffalo herd located in well drained savannas, Guárico state, Venezuela
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topic_title	SF1-1100 Non-genetic factors affecting calving interval and weaning weight in a buffalo herd located in well drained savannas, Guárico state, Venezuela Calving interval, Weaning weight, Venezuela
topic	misc SF1-1100 misc Calving interval, Weaning weight, Venezuela misc Animal culture
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title	Non-genetic factors affecting calving interval and weaning weight in a buffalo herd located in well drained savannas, Guárico state, Venezuela
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title_full	Non-genetic factors affecting calving interval and weaning weight in a buffalo herd located in well drained savannas, Guárico state, Venezuela
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author_browse	N. Martínez B. Birbe P. Herrera R. Bello O. Colmenares
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title_sort	non-genetic factors affecting calving interval and weaning weight in a buffalo herd located in well drained savannas, guárico state, venezuela
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title_auth	Non-genetic factors affecting calving interval and weaning weight in a buffalo herd located in well drained savannas, Guárico state, Venezuela
abstract	The main focus of this research was to evaluate non-genetic factors affecting calving interval (CI) and weaning weight (WW) on a buffalo herd located in well drained savannas of Guárico state, Venezuela. The study involved records (1997-2001) related to monthly frequency of calving (n=486); calving interval (n=365) and weaning weight (n=376). Data analysis included year and calving season, calf sex, cow age and the interactions for CI. For WW, age at weaning was also included in the statistical analysis. Results revealed significant differences for calving distribution per year (P≤0.05) associated with year-on-year climatic factor changes and progressive herd stabilization. CI averaged 378 +- 1.8 (X – +- S.E.) days, with a coefficient of variation (CV) of 7.3% and a significant effect of calving month (P ≤ 0.05). CI frequency distribution for herd showed 75% cows lower than 400 days. Female age at calving was not significant (linear or quadratic) due it was a young herd, with less than 2.6% animals older than 11 years. WW averaged 130.4+-1.9 kg and CV of 24.4%; age to weaning 238.7+-3.2 days, with calving month and age to weaning showing significant effect, while the weight average daily gain was 128g per animal. These findings suggest buffalo’s productive and reproductive potential under tropical conditions.
abstractGer	The main focus of this research was to evaluate non-genetic factors affecting calving interval (CI) and weaning weight (WW) on a buffalo herd located in well drained savannas of Guárico state, Venezuela. The study involved records (1997-2001) related to monthly frequency of calving (n=486); calving interval (n=365) and weaning weight (n=376). Data analysis included year and calving season, calf sex, cow age and the interactions for CI. For WW, age at weaning was also included in the statistical analysis. Results revealed significant differences for calving distribution per year (P≤0.05) associated with year-on-year climatic factor changes and progressive herd stabilization. CI averaged 378 +- 1.8 (X – +- S.E.) days, with a coefficient of variation (CV) of 7.3% and a significant effect of calving month (P ≤ 0.05). CI frequency distribution for herd showed 75% cows lower than 400 days. Female age at calving was not significant (linear or quadratic) due it was a young herd, with less than 2.6% animals older than 11 years. WW averaged 130.4+-1.9 kg and CV of 24.4%; age to weaning 238.7+-3.2 days, with calving month and age to weaning showing significant effect, while the weight average daily gain was 128g per animal. These findings suggest buffalo’s productive and reproductive potential under tropical conditions.
abstract_unstemmed	The main focus of this research was to evaluate non-genetic factors affecting calving interval (CI) and weaning weight (WW) on a buffalo herd located in well drained savannas of Guárico state, Venezuela. The study involved records (1997-2001) related to monthly frequency of calving (n=486); calving interval (n=365) and weaning weight (n=376). Data analysis included year and calving season, calf sex, cow age and the interactions for CI. For WW, age at weaning was also included in the statistical analysis. Results revealed significant differences for calving distribution per year (P≤0.05) associated with year-on-year climatic factor changes and progressive herd stabilization. CI averaged 378 +- 1.8 (X – +- S.E.) days, with a coefficient of variation (CV) of 7.3% and a significant effect of calving month (P ≤ 0.05). CI frequency distribution for herd showed 75% cows lower than 400 days. Female age at calving was not significant (linear or quadratic) due it was a young herd, with less than 2.6% animals older than 11 years. WW averaged 130.4+-1.9 kg and CV of 24.4%; age to weaning 238.7+-3.2 days, with calving month and age to weaning showing significant effect, while the weight average daily gain was 128g per animal. These findings suggest buffalo’s productive and reproductive potential under tropical conditions.
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title_short	Non-genetic factors affecting calving interval and weaning weight in a buffalo herd located in well drained savannas, Guárico state, Venezuela
url	https://doi.org/10.4081/ijas.2007.s2.1354 https://doaj.org/article/6b2791bb8bcb4cc3b623babd7b9c097f http://www.aspajournal.it/index.php/ijas/article/view/1268 https://doaj.org/toc/1594-4077 https://doaj.org/toc/1828-051X
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Non-genetic factors affecting calving interval and weaning weight in a buffalo herd located in well drained savannas, Guárico state, Venezuela

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