Title of article
Association of Genetic Variants ofB-Lactoglobulin Gene with Milk Production in a Herd and a Superior Family of Holstein Cattle
Author/Authors
-، - نويسنده Department of Animal Sciences, Faculty of Agriculture, Gorgan University of Agricultural Sciences and Natural Resources, P.O. Box 49189-43464 , Gorgan, I.R. Iran Heidari, Maryam , -، - نويسنده Department of Animal Sciences, Faculty of Agriculture, Gorgan University of Agricultural Sciences and Natural Resources, P.O. Box 49189-43464 , Gorgan, I.R. Iran Ahani Azari, mojtaba , -، - نويسنده Department of Animal Sciences, Faculty of Agriculture, Gorgan University of Agricultural Sciences and Natural Resources, P.O. Box 49189-43464 , Gorgan, I.R. Iran hasani, saeed , -، - نويسنده Department of Animal Sciences, Faculty of Agriculture, P.O. Box 163, Gonbad, I.R. Ira khanahmadi, alireza , -، - نويسنده Department of Animal Sciences, Faculty of Agriculture, Gorgan University of Agricultural Sciences and Natural Resources, P.O. Box 49189-43464 , Gorgan, I.R. Iran Zerehdaran, Saeed
Issue Information
فصلنامه با شماره پیاپی 0 سال 2009
Pages
4
From page
254
To page
257
Abstract
-
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).
Journal title
Iranian Journal of Biotechnology (IJB)
Serial Year
2009
Journal title
Iranian Journal of Biotechnology (IJB)
Record number
2039970
Link To Document