VOLUME 1 Issue 4/5

DOI:https://doi.org/10.32636/agroscince.2022-(1)-4-5 

DEVELOPMENT AND FORMATION OF MEAT INDICATORS IN BULLS-SONS OF PROSPECTIVE

BULLS-IMPROVERS OF THE UKRAINIAN DAIRY BLACK-SPOTTED BREED

OF THE WESTERN DOMESTIC TYPE

Vasyl FEDAK, candidate of agricultural sciences

Institute of Agriculture of the Carpathian Region of the National Academy of Sciences

An assessment was made of the meat productivity of the bulls – the descendants of the breeding bulls Apollo 1171 (I research group), Spartak 1547 (II group) and Flinted 802 (III group). A group of analogues (IV control group) was formed from the sons of other breeder bulls. The conditions for raising young animals during the period of the experiment were the same for all. At the age of 15 months, bulls-sons of the IV group met the standard of the breed for black and spotted cattle in terms of live weight, while the animals (I, II and III) of the groups exceeded it by 9.7-16.0%. It was established that in almost all the main measurements of the body sexes: height at the withers, sacrum, width and depth of the chest, oblique length of the trunk, width at the hips, half girth of the back, girth of the chest behind the shoulder blades and the wrist during the growing period, the bulls of the group prevailed over the analogues of the IV group . The slaughter yield in experimental animals of groups I and III was 52.7 and 52.2%, and in control animals – 51.3%, and the content of muscle tissue in them was higher by 11.50 and 19.44%. The meat of animals of the I and III experimental groups was more caloric: the average meat sample – 5351 and 5348 kJ and the longest back muscle – 4369 kJ.

Keywords: bulls, growth, development, slaughter performance, meat, quality.