INFLUENCE OF MILK PROTEIN GENOTYPES ON MILK YIELD FOR THE CONTROL DAY IN BROWN CATTLE

Authors

  • Teodora Angelova Agricultural Institute, Stara Zagora
  • Jivko Krastanov Agricultural Institute, Stara Zagora
  • Daniela Yordanova Agricultural Institute, Stara Zagora

DOI:

https://doi.org/10.5281/zenodo.5733879

Keywords:

milk yield, factors, genotype, Brown cattle

Abstract

The aim of the present study was to determine the influence of milk protein genotypes on milk yield for a control day in Brown cattle. The analysis included 155 animals kept in 4 herds in different regions of the country, regardless of their parity and lactation days. The analyzes were based on the hypothesis that the variation in milk yield for the control day was caused by genetic and environmental factors. The factors of parity and herd – year – season, as well as the genetic factors CSN3 and LGB, have a highly reliable influence on the average daily milk yield for a control day. The animals with the BH genotype of CSN3 have the highest average daily milk yield – 24.30 kg, followed by those with AB – 18.87 kg. Heterozygous animals with different genotypes of milk proteins are characterized by close values f daily milk yield for the control day.

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Published

2021-11-27

How to Cite

Angelova, T., Krastanov, J., & Yordanova, D. (2021). INFLUENCE OF MILK PROTEIN GENOTYPES ON MILK YIELD FOR THE CONTROL DAY IN BROWN CATTLE. TRADITION AND MODERNITY IN VETERINARY MEDICINE, 6(2), 3–8. https://doi.org/10.5281/zenodo.5733879