GENETIC RELATIONSHIP BETWEEN SOME TYPE TRAITS AND LONGEVITY IN HOLSTEIN DAIRY CATTLE OF IRAN

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SEIFI SINA; ASGARI GHOBAD; SAIADNEJAD MOHAMMAD BAGHER; AMIN AFSHAR MAHDI

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Journal: JOURNAL OF ANIMAL ENVIRONMENT Year:2010 | Volume:2 | Issue:1 (5) Page(s): 23-30

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Title

GENETIC RELATIONSHIP BETWEEN SOME TYPE TRAITS AND LONGEVITY IN HOLSTEIN DAIRY CATTLE OF IRAN

Author(s)

SEIFI SINA | ASGARI GHOBAD | SAIADNEJAD MOHAMMAD BAGHER | AMIN AFSHAR MAHDI | Issue Writer Certificate

Keywords

DAIRY CATTLEQ2

GENETIC CORRELATIONQ3

TYPE TRAITSQ2

LONGEVITYQ3

Abstract

In this study, 10839 records of first parity Iranian Holstein DAIRY CATTLE (that were collected by Animal Breeding Center of Iran) were used to estimate genetic and phenotype parameters of 5 different TYPE TRAITS, 2 LONGEVITY traits, and their correlations. The genetic parameters were estimated by restricted maximum likelihood method with an animal model using ASREML software. Heritability estimates for TYPE TRAITS ranged from 0.11 (fore udder attachment) to 0.20 (body depth). The GENETIC CORRELATION between LONGEVITY traits and TYPE TRAITS of body depth, loin, chest width, udder width and body size were negative and TYPE TRAITS of fore udder attachment, udder depth, median suspensor and udder height were positive and ranged from 0.03 (true productive herd life with fore udder attachment) to -0.47 (functional productive herd life with fore udder attachment). According to these results, it could be recommended to use TYPE TRAITS index for effective selection of animals with better LONGEVITY and fertility traits.

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APA: Copy

SEIFI, SINA, ASGARI, GHOBAD, SAIADNEJAD, MOHAMMAD BAGHER, & AMIN AFSHAR, MAHDI. (2010). GENETIC RELATIONSHIP BETWEEN SOME TYPE TRAITS AND LONGEVITY IN HOLSTEIN DAIRY CATTLE OF IRAN. JOURNAL OF ANIMAL ENVIRONMENT, 2(1 (5)), 23-30. SID. https://sid.ir/paper/206654/en

Vancouver: Copy

SEIFI SINA, ASGARI GHOBAD, SAIADNEJAD MOHAMMAD BAGHER, AMIN AFSHAR MAHDI. GENETIC RELATIONSHIP BETWEEN SOME TYPE TRAITS AND LONGEVITY IN HOLSTEIN DAIRY CATTLE OF IRAN. JOURNAL OF ANIMAL ENVIRONMENT[Internet]. 2010;2(1 (5)):23-30. Available from: https://sid.ir/paper/206654/en

IEEE: Copy

SINA SEIFI, GHOBAD ASGARI, MOHAMMAD BAGHER SAIADNEJAD, and MAHDI AMIN AFSHAR, “GENETIC RELATIONSHIP BETWEEN SOME TYPE TRAITS AND LONGEVITY IN HOLSTEIN DAIRY CATTLE OF IRAN,” JOURNAL OF ANIMAL ENVIRONMENT, vol. 2, no. 1 (5), pp. 23–30, 2010, [Online]. Available: https://sid.ir/paper/206654/en

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