The effect of β-Lactoglobulin gene polymorphism on the breeding value of milk production trait in Brown Swiss cattles

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EMRANI H.; Mirhabibi S.; Jelokhani Niaraki S.

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Journal: Animal Science Journal Year:2021 | Volume:33 | Issue:129 Page(s): 25-32

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Title

The effect of β-Lactoglobulin gene polymorphism on the breeding value of milk production trait in Brown Swiss cattles

Author(s)

EMRANI H. | Mirhabibi S. | Jelokhani Niaraki S. | Issue Writer Certificate

Keywords

Candidate geneQ1

β-lactoglobulinQ2

Brown Swiss CattleQ1

milk productionQ2

Abstract

The β-lactoglobulin gene (β-LG) has been considered to be one of the most important genes involved in the milk productin related traits. In the present research, the association of β-LG polymorphism with breeding values for milk production related traits was investigated in Brown Swiss Cattle. The data of this study was collected from the Golpayegan dairy farm. In this study, genomic DNA was extracted from 150 blood samples by modified salting out method. Following this stage, a fragment of 247 bp was amplified and used for enzymatic digestion. The HaeIII restriction enzyme was used to digest of 247 bp of gene. The results showed that genotypes AA, AB and BB of the β-LG gene were estimated to have frequencies of 0. 24, 0. 48 and 0. 28, respectively. These Genotypes were distributed according to the HardyWeinberg equilibrium. Genetic parameters were estimated by the restricted maximum likelihood (REML) method using DFREML program. Heritability and repeatability for milk yield traits were estimated to be 0. 154 and 0. 309, respectively. The statistical analysis based on the General Liner Models revealed that there is no significant effect for β-LG genotypes on the milk yield breeding values.

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APA: Copy

EMRANI, H., Mirhabibi, S., & Jelokhani Niaraki, S.. (2021). The effect of β-Lactoglobulin gene polymorphism on the breeding value of milk production trait in Brown Swiss cattles. ANIMAL SCIENCES JOURNAL (PAJOUHESH & SAZANDEGI), 33(129 ), 25-32. SID. https://sid.ir/paper/375559/en

Vancouver: Copy

EMRANI H., Mirhabibi S., Jelokhani Niaraki S.. The effect of β-Lactoglobulin gene polymorphism on the breeding value of milk production trait in Brown Swiss cattles. ANIMAL SCIENCES JOURNAL (PAJOUHESH & SAZANDEGI)[Internet]. 2021;33(129 ):25-32. Available from: https://sid.ir/paper/375559/en

IEEE: Copy

H. EMRANI, S. Mirhabibi, and S. Jelokhani Niaraki, “The effect of β-Lactoglobulin gene polymorphism on the breeding value of milk production trait in Brown Swiss cattles,” ANIMAL SCIENCES JOURNAL (PAJOUHESH & SAZANDEGI), vol. 33, no. 129 , pp. 25–32, 2021, [Online]. Available: https://sid.ir/paper/375559/en

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