Title : ( Association of Genetic Variants ofB-Lactoglobulin Gene with Milk Production in a Herd and a Superior Family of Holstein Cattle )
Authors: Maryam Heidari , Mojtaba Ahani Azari , Saeed Hasani , Alireza Khanahmadi , Saeed Zerehdaran ,
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Abstract
Polymorphism of the b-lactoglobulin (b-LG) gene in 101 cows belonging to the Holstein herd and a superior cow, producing more than 150 Kg milk/day, together with four offsprings was investigated by the Polymerase Chain Reaction-Restriction Fragment Length Polymorphism (PCR-RFLP) method. In the Holstein herd, the alleles A and B of the b-LG gene had frequencies of 0.53 and 0.47, respectively. The genotypes AA, AB and BB of the b-LG gene were estimated to have frequencies of 0.257, 0.544 and 0.198, respectively. Genotypes were distributed according to the Hardy-Weinberg equilibrium. Results indicated that the b-LG genotypes significantly affected (P< 0.01) milk yield (genotype AA being more effective than genotype BB). The superior cow and her progenies were all heterozygotes (AB).
Keywords
, b, LG; Holstein; Milk production; Polymorphism; PCR, RFLP
@article{paperid:1059045,
author = {Maryam Heidari and Mojtaba Ahani Azari and Saeed Hasani and Alireza Khanahmadi and Zerehdaran, Saeed},
title = {Association of Genetic Variants ofB-Lactoglobulin Gene with Milk Production in a Herd and a Superior Family of Holstein Cattle},
journal = {Iranian Journal of Biotechnology},
year = {2009},
volume = {7},
number = {4},
month = {October},
issn = {1728-3043},
pages = {254--257},
numpages = {3},
keywords = {b-LG; Holstein; Milk production; Polymorphism; PCR-RFLP},
}
%0 Journal Article
%T Association of Genetic Variants ofB-Lactoglobulin Gene with Milk Production in a Herd and a Superior Family of Holstein Cattle
%A Maryam Heidari
%A Mojtaba Ahani Azari
%A Saeed Hasani
%A Alireza Khanahmadi
%A Zerehdaran, Saeed
%J Iranian Journal of Biotechnology
%@ 1728-3043
%D 2009
