Title
ASSOCIATION BETWEEN BETA-LACTOGLOBULIN (LGB) POLYMORPHISM AND YIELD AND COMPOSITION OF MILK OF HOLSTEIN-FRIESIAN COWS IMPORTED FROM SWEDEN
Autor
Ewa Czerniawska-Piątkowska, Małgorzata Szewczuk, Aleksandra Olszewska, Ewa Chociłowicz
Keywords
Keywords: beta-lactoglobulin, HF, milk proteins, milk yield, polymorphism
Abstract
The study involved 102 Holstein-Friesian cows imported from Sweden, kept on a farm in the West Pomerania Province. Beta-lactoglobulin (LGB) genotypes were determined using PCR (Polymerase Chain Reaction) method according to Medrano and Aquilar-Cordova [1990]. It was found that cows with the LGB AA genotype had the highest milk yield in all analysed 305-day lactations. The differences were significant in the third lactation (P≤0.01, P≤0.05). For the same genotype, the highest milk protein yield and content for the three analysed lactations were recorded. The highest milk fat content and yield were found in the BB homozygotes for all the analysed lactations.
Pages
9-18
Cite
Czerniawska-Piątkowska, E., Szewczuk, M., Olszewska, A., Chociłowicz, E. (2011). ASSOCIATION BETWEEN BETA-LACTOGLOBULIN (LGB) POLYMORPHISM AND YIELD AND COMPOSITION OF MILK OF HOLSTEIN-FRIESIAN COWS IMPORTED FROM SWEDEN. Acta Sci. Pol. Zootechnica, 10(2), 9-18.
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