The development of the bone system of young Bestuzhev breed and its crossbreeds with simmentals

Relevance. As a result of morphological studies, materials were obtained characterizing the effect of genotype and castration of young cattle and the development of the bone system in the postnatal period of ontogenesis.

Methodology. For the purpose of conducting the experiment, groups of experimental young animals were selected:

Results. The influence of the genotype and castration of young cattle on the absolute weight and length of individual parts and the entire skeleton of gobies and castrated gobies of the Bestuzhev breed and its first-generation crossbreeds with simmentals was established. The advantage of crossbred bulls of the ½ Bestuzhevskaya × ½ simmental group II in terms of the absolute weight of both the axial and peripheral skeleton over purebred and crossbred bulls and castrated bulls of the Bestuzhevskaya breed, crossbred castrated bulls has been established. For the entire mass of the carcass skeleton, this superiority was, respectively, 12 g (2.4%), 6616 g (14.7%) and 5553 (12.0%). Similar intergroup differences were found in the length of individual parts and the entire skeleton of the carcass.

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