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The effect of the time of castration on the growth and development of young bulls



The effect of the time of castration on the growth and development of young bulls



Veterinariia (12): 61-63



The author inspected young bulls born from cows of the Krasnostepnaya (Red Steppe) and bulls of the Kostromskaya varieties. The 5 young bulls in the 1st group were castrated at the age of 40-90 days, while the 5 in the 2d group were castrated at the age of 120-160 days. From birth to the age of 18 months, the weight in the 1st group increased to 413 kg, while that in the 2d increased to 355 kg. The consumption of fodder for an increase in weight of one kg was 6.3 and 8.4 feeding units, respectively. Young bulls were slaughtered after they reached 18 months. In the castrated bulls from the 1st group, the yield of the highest types of meat amounted to 93%, compared to a norm of 88% for cattle which have been fattened more than the average, while the yield of the lower types was 6.6% compared to a norm of 12%. In castrated bulls from the 1st group, the bones in the carcass weighed 36 kg; in the castrated bulls from the 2d group they weighed 41 kg. The fat content of the meat was 31.28% and 26.8%, respectively. Hides were accepted as 1st class and belonged to the 4th category. The most favorable age for the castration of young bulls is from 1.5 to 2 months.

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Accession: 033785929

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