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In this study, performed on the basis of JSC "Plemzverosovkhoz Saltykovsky" on 150 standard minks which were selected according to the principle of analogs, the systemic and local effects of protein hydrolyzate in the composition of the basic diet were evaluated. A complex methodical approach was used, including clinical, hematological, morphological and zootechnical research methods. The digital material was subject o statistical processing. When analyzing the basic diet of minks, it was established that it is balanced in almost all nutritional substances. Nevertheless, based on a comparative study of the amino acid composition of the feed, a deficiency of the essential amino acid of threonine was detected. An evaluation of the dynamics of body weight in experimental animals showed an advantage in the growth of animals receiving hydrolyzate. By the end of the experiment, the animals of the experimental groups outstripped (by 10.1%) the control analogues for weight gain. The results of the analysis of biochemical parameters of blood serum testify to a statistically significant increase in the concentration of the total protein (by 48.6% in test group minks relative to the control group) with a simultaneous decrease (by 27%) of the albumin fraction. The level of ALT in the control group was lower (by 29%) than in the animals of the experimental groups, while increasing (by 35%) the level of AST. Morphometric parameters of the total skin thickness in experimental animals did not have significant differences. At the same time, their ratio in the general cover varies in the direction of diminishing the thickness of the epidermis and the depth of the hair follicles in animals treated with hydrolyzate. Planimetric indicators of skins raw materials in experienced animals increased by 5.5% compared to representatives of the control group. Based on the evaluation of systemic and local effects of protein hydrolyzate, the effectiveness of its use in cellular fur farming has been established.

Biological evaluation of the influence of protein hydrolysate on the organism of the monks