NDLI: Estimation of environmental factors effects and genetic parameters of some reproductive traits of Iranian buffaloes.

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Estimation of environmental factors effects and genetic parameters of some reproductive traits of Iranian buffaloes.

Content Provider	Semantic Scholar
Author	Hasanpour, Kazem Babak, M. Moradi Shahr Sadeghi, Mahbobeh Kiyanzad, D.
Copyright Year	2012
Abstract	Estimation of environmental factors effects and genetic parameters of some reproductive traits including calving interval (CI, n=16108), lactation length (LL, n=5821) and age at first calving (AFC, n=4421) of buffaloes that their calving occurred during 1995 to 2009 in 162 village were carried out. Mean±S.D of the traits were 437±92, 211±47 and 1318±109 days for CI, LL, and AFC, respectively. The provinces of Mazandaran, East Azarbayjan and West Azarbayjan possess the best buffaloes for CI, LL and AFC traits, respectively. Buffaloes that had calving in winter showed the highest calving interval but the lowest lactation length. Estimation of genetic parameters for the aforementioned traits revealed that genetic variation were moderate to high in Iranian buffalo population. Averages of heritability estimates obtained from uniand bivariate analysis were 0.28, 0.46, and 0.14 for CI, LL and AFC traits, respectively. Genetic correlation between milk yield and calving interval was negative (-0.156) whereas this correlation was positive between milk yield and age at first calving (0.563).
Starting Page	81
Ending Page	90
Page Count	10
File Format	PDF HTM / HTML
Volume Number	22
Alternate Webpage(s)	http://journals.tabrizu.ac.ir/article_1165_401dac61da59e9ab4b6ab4e560e0cc4c.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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