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Iranian Journal of Biotechnology، جلد ۷، شماره ۲، صفحات ۸۲-۸۵
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عنوان انگلیسی Polymorphism of the b-Lactoglobulin Gene and Its Association with Milk Production Traits in Iranian Najdi Cattle
چکیده انگلیسی مقاله The objective of this study was to determine the polymorphism of bovine β-lactoglobulin (β-LG) gene and its association with milk production traits in Iranian Najdi cattle. Blood samples were collected from 80 Najdi cattle from the Najdi cattle breeding station located in Shoshtar, Khuzestan. Polymerase chain reaction (PCR) and restriction fragment length polymorphism (RFLP) techniqus were used for identification of various genotypes. The results indicated that allele frequency of β-LG with regard to the B-allele (0.9125) was higher than that of the A-allele (0.0875). Frequencies of AB and BB genotypes were 0.175 and 0.825, respectively, while the AA genotype was found to be absent. Genotype frequencies were in accordance with the Hardy-Weinberg equilibrium. The effect of β-LG genotypes on milk production traits were analysed using a general linear model (GLM). There was no significant association between different genotypes of β-LG and milk production traits of the analysed cows.
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نویسندگان مقاله کریم کریمی |
department of animal sciences, faculty of agricultural sciences, ramin agricultural university, p.o. box 62233-10544, molsani, ahvaz, i.r. iran

محمد تقی بیگی نصیری | mohammad taghi beigi nassiri
department of animal sciences, faculty of agricultural sciences, ramin agricultural university, p.o. box 62233-10544, molsani, ahvaz, i.r. iran

خلیل میرزاده |
department of animal sciences, faculty of agricultural sciences, ramin agricultural university, p.o. box 62233-10544, molsani, ahvaz, i.r. iran

امین عشایری زاده |
department of animal sciences, faculty of agricultural sciences, ramin agricultural university, p.o. box 62233-10544, molsani, ahvaz, i.r. iran

هدایت الله روشنفکر |
department of animal sciences, faculty of agricultural sciences, ramin agricultural university, p.o. box 62233-10544, molsani, ahvaz, i.r. iran

جمال فیاضی |
department of animal sciences, faculty of agricultural sciences, ramin agricultural university, p.o. box 62233-10544, molsani, ahvaz, i.r. iran

نشانی اینترنتی http://www.ijbiotech.com/article_7082_7a748a868d4d690a8434d208c03cb379.pdf
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