DOI 10.33861/2071-8020-2020-1-15-18
Kilmetova I.R., Rodin I.A., Hayrullina N.I., Fenchenko N.G.
Summary. The disbalanced feeding and the uneven distribution of micro- and macroelements in the environment leads to a trace element, in particular hypomelanosis. To accelerate the growth and preservation of young farm animals include in the diet of various biological additives and drugs, which include selenium. For stimulation of weight gain in the livestock industry, as well as for the prevention and treatment of pathological processes in addition to micro - and macrouse amino acids, primarily methionine. The aim of this work was to study the influence of composition of DAFS-25+Polizon on morpho-biochemical parameters of blood and functional state of the liver in fattening bulls of black-motley breed in the conditions of the Republic of Bashkortostan. Experiments using were conducted on bull-calves of black-motley breed of the properties in the properties age from 6 to 15 months. The first experimental group during the experiment was additionally given the composition of DAFS-25+Polizon at a dose of 2 mg/kg, the animals of the control group received a standard diet. To assess the impact of the composition DAFS-25+Polizon on metabolism cattle studied morphological and biochemical indicators of blood and conducted histological examination of the liver. It is established that the use of the composition of DAFS-25+Polizon at a dose of 2 mg/kg increases the number of erythrocytes and hemoglobin in the experimental group and reduces the amount of white blood cells. The serum content of total protein, phosphorus and calcium increases in the group of experimental animals. Microscopic examination of the liver revealed no changes in the structure of the organ and hepatocytes in the experimental group, whereas in the control group hemodynamic disorders and dystrophic changes in liver cells were observed. Thus, the use of the composition DAFS-25+Polizon at a dose of 2 mg/kg of live weight in fattening bulls black-and-white breed contributes to the increase of redox processes in the body, stimulation of metabolism, prevent the development of liver disorders of cellular mechanisms of metabolism, optimizes the structure of the liver, which generally provides higher productivity.
Keywords: large horned cattle, black-motley breed, feed additive organic selenium, DAFS-25, synthetic methionine, Polizon, composition of DAFS-25+Polizon, metabolism, morphological parameters, biochemical parameters, liver histology, structure, hepatocytes, fattening efficiency.
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Author affiliation:
Rodin Igor A., D.Sc. in Veterinary Medicine, professor, professor of the department of anatomy, veterinary of veterinary obstetrics and surgery of the Kuban State Agrarian University named after I.T. Trubilin; 13, Kalinina st., Krasnodar, 35004413; phone: 8-918-4350549; e-mail: d22003807@mail.ru.
Khayrullina Nazira I., D.Sc. in Biology, Senior Scientific Researcher of the department of animal husbandry of the Bashkir Scientific-Research Institute of Agriculture of the UFSRC RAS; 19, Zorge st., Ufa, Republic of Bashkortostan, 450059; phone: 8-927-9406109; e-mail: 12001@bk.ru.
Fenchenko Nikolay G., D.Sc. in Agriculture, professor, Senior Scientific Researcher of the department of animal husbandry of the Bashkir Scientific-Research Institute of Agriculture of the UFSRC RAS; 19, Zorge st., Ufa, Republic of Bashkortostan, 450059; phone: 8-965-9250354; e-mail: 12001@bk.ru.
Responsible for correspondence with the editorial board: Kilmetova Inna R., D.Sc. in Veterinary Medicine, Deputy Director of Bazis Ltd; 112/1, Industrialnoe shosse st., Ufa, 450027; phone: 8-903-3533754; e-mail: innakilmetova@yandex.ru.
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