COMPARISON OF INTRAVITAL MEAT QUALITIES OF CROSSBRED BULL-CALVES OBTAINED USING AN ULTRASONIC SCANNING WITH POST-MORTEM EVALUATION

Abstract

This article presents the results of the intensity of growth, development, and
meat qualities of crossbred young animals (outbred cows x bulls of the Aberdeen
Angus breed, outbred cows x bulls of the Hereford breed), lifetime determination of
meat qualitiesusing an ultrasonic scanning device at the feedlot to determine their
readiness for slaughter and post-mortem evaluation.
The study showed that the live weight was 515.3±7.4 kg for Aberdeen Angus
crossbreeds, 516.7±7.9 kg for Hereford crossbreeds, 487.0±4.7 kg for outbreeds;
eye muscle area: crossbreds with Aberdeen Angus 82.5±5.4 cm2, crossbreds with
Herefords 81.9±2.4 cm2, outbred 78.1±4.7 cm2; subcutaneous fat thickness: Angus
crossbreeds 6.1±1.4 mm, Hereford crossbreeds 7.0±0.3 mm, outbred 5.8±0.9 mm.
The convergence of the eye muscle area measured by ultrasonography with postslaughter
measurement in the Hereford crossbreeds of the third group averaged
95.3%, in the Aberdeen-Angus crossbreeds of the second group 95.6%, in local
improved cattle 96.9%.