Open AccessThe influence of genetic β-lactoglobulin polymorphism on the quantity and quality of milk of the Simmental breed in Serbia
Author(s) -
Dragan Nikšić,
V. Pantelić,
D. Ostojić-Andrić,
Dragan Stanojević,
Nikola Delić,
Aleksandar Stanojković,
Maja Petričević
Publication year - 2021
Publication title -
genetika
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.24
H-Index - 15
eISSN - 1820-6069
pISSN - 0534-0012
DOI - 10.2298/gensr2101263n
Subject(s) - breed , genotype , biology , lactation , zoology , milk protein , polymorphism (computer science) , livestock , milk production , milk fat , microbiology and biotechnology , food science , genetics , gene , pregnancy , ecology , linseed oil
The study of the link between genes controlling protein polymorphism and milk performance traits of domestic animals has great economic importance from a selection point of view, as it reduces the generation interval, leading to increased productivity in livestock. The objective of this paper was to establish the influence of genetic ? -lactoglobulin polymorphism on the quantity and quality of milk of the simmental breed in Serbi?. For the research blood samples were taken from a total of 157 Simmental cows. The genotypes of Simmental cows for ?-lactoblobulin and their effect on quantitative milk performance traits were determined using the PCR-RFLP analysis. The variability of traits influenced by the genetic polymorphism of ?-lactoblobulin was statistically very highly significant (p <0.0001) for milk yield in standard lactation and milk fat and protein yields, while it showed no statistically significant variability (p> 0.05) for content of milk fat and protein. The genotype cows achieved a 121 kg and 338 kg increase in milk production compared to the BB genotype and AA genotype cows, respectively.