ESTIMATION OF ENVIRONMENTAL FACTORS EFFECTS AND GENETIC PARAMETERS OF SOME REPRODUCTIVE TRAITS OF IRANIAN BUFFALOES

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HASANPOUR K.; MORADI SHAHR BABAK M.; SADEGHI M.; KIYANZAD D.

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Journal: ANIMAL SCIENCE RESEARCHES (FACULTY OF AGRICULTURE, UNIVERSITY OF TABRIZ) Year:2012 | Volume:22 | Issue:2 Page(s): 81-90

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Title

ESTIMATION OF ENVIRONMENTAL FACTORS EFFECTS AND GENETIC PARAMETERS OF SOME REPRODUCTIVE TRAITS OF IRANIAN BUFFALOES

Author(s)

HASANPOUR K. | MORADI SHAHR BABAK M. | SADEGHI M. | KIYANZAD D. | Issue Writer Certificate

Keywords

BUFFALOQ2

GENETIC AND ENVIRONMENTAL FACTORSQ3

REPRODUCTIVE TRAITSQ2

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 uni- and 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).

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APA: Copy

HASANPOUR, K., MORADI SHAHR BABAK, M., SADEGHI, M., & KIYANZAD, D.. (2012). ESTIMATION OF ENVIRONMENTAL FACTORS EFFECTS AND GENETIC PARAMETERS OF SOME REPRODUCTIVE TRAITS OF IRANIAN BUFFALOES. ANIMAL SCIENCE RESEARCHES (FACULTY OF AGRICULTURE, UNIVERSITY OF TABRIZ), 22(2), 81-90. SID. https://sid.ir/paper/147580/en

Vancouver: Copy

HASANPOUR K., MORADI SHAHR BABAK M., SADEGHI M., KIYANZAD D.. ESTIMATION OF ENVIRONMENTAL FACTORS EFFECTS AND GENETIC PARAMETERS OF SOME REPRODUCTIVE TRAITS OF IRANIAN BUFFALOES. ANIMAL SCIENCE RESEARCHES (FACULTY OF AGRICULTURE, UNIVERSITY OF TABRIZ)[Internet]. 2012;22(2):81-90. Available from: https://sid.ir/paper/147580/en

IEEE: Copy

K. HASANPOUR, M. MORADI SHAHR BABAK, M. SADEGHI, and D. KIYANZAD, “ESTIMATION OF ENVIRONMENTAL FACTORS EFFECTS AND GENETIC PARAMETERS OF SOME REPRODUCTIVE TRAITS OF IRANIAN BUFFALOES,” ANIMAL SCIENCE RESEARCHES (FACULTY OF AGRICULTURE, UNIVERSITY OF TABRIZ), vol. 22, no. 2, pp. 81–90, 2012, [Online]. Available: https://sid.ir/paper/147580/en

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