Wydanie 340(45)1 2018

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https://oa.zut.edu.pl/handle/20.500.12539/699

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Przeglądaj Wydanie 340(45)1 2018 wg Autor "Department of Molecular Cytogenetics, West Pomeranian University of Technology, Szczecin, Poland"

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    PozycjaOpen Access
    The Association Between Erα/ Bgli Genotypes and Milk Performance in Holstein-Friesian and Jersey Cattle. Preliminary Study
    (Wydawnictwo Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2018) Wasilewska, Małgorzata; Tabor-Osińska, Sara; Department of Molecular Cytogenetics, West Pomeranian University of Technology, Szczecin, Poland; Department of Molecular Cytogenetics, West Pomeranian University of Technology, Szczecin, Poland
    Modern farming asks many questions which science has answers to. While selecting animals for further breeding, many aspects should be taken under consideration, like an animal's phenotypic and genetic features. Marker-assisted selection is a useful tool for judging an animal's genetic value. There are many well-known genetic factors responsible for efficiency of animal production and many of which still need to be studied in more depth. The following study examines the association between ERα/ BglI genotypes and milk performance in cattle. Two breeds were analysed in this study (Jersey and Holstein-Friesian red and white) and from the data gathered there is evidence to suggest that polymorphisms in the gene influences milk yield in these breeds. Three genotypes were identified: GG, AG, AA. The data pertaining to milk yield of both herds received from the farmers shows that the efficiency of milk production is the highest in the GG homozygotes and the lowest in the AG heterozygotes. This suggests a strong link between these genetic variants and the effective production of milk. However, to confirm the association between the polymorphic traits of the studied gene and milk production traits, it would be necessary to run a study on a larger group of cattle and to use infomration about their further lactation cycles.