The article presents the results of the effect of proautovak on the morphological and biochemical blood indicators of cows. The prophylactic effect of the application of this drug has been noted, which is expressed in a decrease in the intensity of lipid and protein peroxidation processes, endogenous intoxication phenomena while increasing local protection factors, activating an antioxidant system, which clinically manifested itself by a decrease in the incidence of mastitis in cows in the postpartum period.
The article presents the material on the study of the efficacy of the use of the drug Proautovak to the prevent the udder inflammation during the postpartum period in cows. As a result of the studies, it has been found that with a triplicate administration of the Proautovak with a 24-hour interval at a dose of 10.0 ml/animal, starting from the first day of the postpartum period, the indicators of morphological, biochemical, and immunological status change, this testifies to the activation of the cellular link in the general nonspecific resistance of the cows.
This article provides information about a promising alternative field of animal husbandry – nutria breeding. This involves the production of fur and high-quality meat products, which contain a large amount of nitrogenous extractives and muscle hemoglobin. This study examined the sexual system of female nutria, and the dynamics, duration and features of each stage of the female nutria’s sexual cycle, including estrus, sexual arousal, hunting, braking and phase balancing. The methods of observation, clinical examination, research of smears and fingerprints, and analysis of the cytogram of the vaginal epithelium at different stages of sexual and physiological maturity of female nutria were used. When analyzing the cytogram of the vaginal epithelium, the structure, color, and percentage of basal, parabasal, superficial, and keratinized cells were indicated. Information about the timing of sexual and physiological maturity, their features, processes and signs of manifestation, and different timing of sexual and physiological maturity in summer and winter is provided.
Keywords: nutria, female, puberty, physiological maturity
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