BREEDING VALUE OF BULLS OF WORLD GENE POOL OF BROWN SWISS BREED

  • V. I. Ladyka Sumy National Agrarian University (Sumy, Ukraine)
  • Yu. M. Pavlenko Sumy National Agrarian University (Sumy, Ukraine)
  • O. I. Klymenko Sumy National Agrarian University (Sumy, Ukraine)
  • D. O. Kalinichenko Sumy National Agrarian University (Sumy, Ukraine)
Keywords: Brown Swiss Breed, breeding value, genotype factors, phenotypic factors, impact strength

Abstract

It was found that the highest breeding value for milk production featured the bulls have the daughters of Italian origin. The German sires have the best meat qualities according to fitness-indicators, the best was a group of Swiss Brown bulls. In general, the highest value of total breeding value index had subsidiaries sires offsprings of Italian origin.

The obtained results of impact forces of genotypic factors on the level sires of breeding values allowed us to conclude that their effect on the researched highly significant effect features that characterized the breeding value were within 2,4-16,7%. The coefficients of phenotypic factors potency proved the credible and decisive influence on the birth year of bull on some indixes of breeding values. Thus the index of total breeding value depended on who was born at 39.6%, the index of breeding values for milk production - by 44.0%, while the indixes for meat breeding value and performance for fitness indicators - only 6.9% and 4.4% respectively.

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Published
2017-04-27
How to Cite
Ladyka, V. I., Pavlenko, Y. M., Klymenko, O. I., & Kalinichenko, D. O. (2017). BREEDING VALUE OF BULLS OF WORLD GENE POOL OF BROWN SWISS BREED. Animal Breeding and Genetics, 53, 148-154. https://doi.org/10.31073/abg.53.19
Section
Breeding and Selection