Productive qualities of bulls of the Kazakh white-headed breed when feeding a feed additive Expanded Vermiculite
The article presents the results of studying the effect of the mineral fodder additive Expanded Vermiculite on the meat productivity of young cattle of the Kazakh white-headed breed. The feed additive used is obtained from mineral micas mined in the lower reaches of the Southern Urals. This material is rich in micro- and macroelements useful for the body, therefore, there is scientific and practical interest in its use as a feed additive in cattle diets. The experimental part was carried out on the basis of a livestock enterprise in the Republic of Kazakhstan. The object of the study were gobies of the Kazakh white-headed breed, the duration of the experiment was 12 months. To obtain reliable data on the average daily gain and body weight gain, the experimental animals were weighed once a month. The effect of the feed additive on the hematological parameters of animals, on the content of nutrients in meat was studied. The feed additive Expanded Vermiculite had a positive effect on the growth rates of the tested young animals, increasing them by an average of 7.5 and 8.3 %