Comparative assessment of the meat breeds cattle exterior of the Republic Tuva

The purpose of research is to study the exterior indicators, live weight of cattle of the Hereford and Kalmyk breeds in the conditions of the Republic of Tuva and conduct a comparative assessment. Research objectives: to conduct a comparative analysis of the exterior indicators and live weight of young animals of different breeds. The object of the study was cattle of the Hereford and Kalmyk breeds. The conditions for feeding and keeping the test animals were the same. Animals of the Hereford breed had an advantage in the main indicators of the exterior: height at the withers by 4.21 %, oblique body length - by 9.45, chest girth behind the shoulder blades - by 7.46 %. For a more accurate characterization of animals, physique indices were calculated. In animals, the live weight was determined and its comparative analysis was carried out in cows and their newborn calves. In cows of the Hereford breed, the live weight was more than that of the Kalmyk breed, by 41 kg, or by 8.8 %. In terms of live weight, the young of the Hereford breed exceeded the compared peers of the Kalmyk breed by 8.7 kg, or 32.6 %. When comparing body indexes, Herefords had more pronounced stretching indices, respectively, 112 vs. 107 %, boneiness 115 and 13 %; the Kalmyk breed had a 4 % higher thickset index than that of the Herefords.