External features of heifers of ukrainian black-and red-and-white dairy brees and their cross breeds with jersey

  • O. V. Malynovska Institute of Animal Breeding and Genetics named after M.V. Zubets NAAS, Kyiv district, Chubynske village, Ukraine
  • Ye. I. Fedorovych Institute of Animal Biology NAAS, Lviv, Ukraine
  • M. I. Kuziv Institute of Animal Biology NAAS, Lviv, Ukraine
Keywords: ukrainian black-and-white dairy breed; ukrainian red-and-white dairy breed, cross breeds, heifers, body measurements, body structure indices

Abstract

The cattle breeding in Ukraine has become the most widely used instrumental assessment of the exterior of animals using special measuring instruments. Such an estimate provides objective data not only about an individual, but also about groups of animals and breed in general. It is known that animals of different breeds and different genotypes differ in their type of body structure. In view of the above, the purpose of our research was to study the exterior of the first-born cows of the Ukrainian Black-and-White and Red-and-White breeds and their ranges of the first and second generations with the breeders of the Jersey breed. Studies on the first cows of the Black-and-White milk breed and their intercourse with the first and second generation of Jersey were carried out in the farm "Elitmilk" of the Kamianko-Buzky district, and on the first-fruits of the Ukrainian Red-and-White dairy breed and their intercourse with Jersey of various generations in farm "Agrotem" of Pustomyty district of Lviv region.

It was established that the first-born cows of Ukrainian Black-and-White milk breed dominated by the measurable measurements (exception – breast width) target parameters the animals of desired type, and the Ukrainian Red-and-White dairy breed prevailed for these parameters by the depth of the chest, the width of the maclakes, and the girth of the fifth and inferior to them in height of shoulders, the width of the breast, the chest covering of the shoulder blades and the oblique length of the trunk. With the increase of the proportion of heredity of Jersey in the genotype of Black and Red-and-White animals breast milk body measurements diminished. In most of the body structure indices, the experimental cows dominated their descendants first and second generations. Between the initial breeding stock and their interbreed descendants from the Jersey of the first and second generations a more significant difference was noted between the various groups of cows of Ukrainian Red-and-White breed than Ukrainian Black-and-White dairy breed.

The measurements and indices of the structure of the body clearly pronounced the milk productivity potential of not only cows of the Ukrainian Black and Red-and-White dairy breeds, but also their cross breed with a proportion of heredity of Jersey 50 and 75%.

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Published
2019-09-18
How to Cite
Malynovska, O. V., Fedorovych, Y. I., & Kuziv, M. I. (2019). External features of heifers of ukrainian black-and red-and-white dairy brees and their cross breeds with jersey. Scientific and Technical Bulletin оf State Scientific Research Control Institute of Veterinary Medical Products and Fodder Additives аnd Institute of Animal Biology, 20(2), 358-365. https://doi.org/10.36359/scivp.2019-20-2.47