Учр едитель и издатель: Founder and editor: ФГБОУ ВО «Казанская государственная академия ветеринарной медицины имени Н.Э. Баумана» (ФГБОУ ВО Казанская ГАВМ) FSBEI HE «Kazan Bauman State Academy of Veterinary Medicine»(FSBEI HE KSAVM) Печатается по решению редакционной коллегии Казанской государственной академии ветеринарной медицины им. Н.Э. Баумана от 5 Декабря 2019 г
The dynamics of bioamines in platelets, neutrophils, lymphocytes and blood plasma of imported heifers indicated that experimental group of animals experience stress, which is accompanied by an adequate release of bioamines from the deposit sites: catecholamines - by 9.2-17.1%, histamine - by 2.2-6.1% and serotonin by 1.0-3.9% (P <0.05-0.001). Intramuscular injection of PS-7 and Prevention-N-C preparations to transported animals had a supportive effect on the formation of body biochemical adaptation mechanisms to the conditions of long-term transportation. After application of biopreparations the improvement of the reproductive traits of heifers of the 1st and 2nd experimental group was indicated the age of successful insemination was shortened by 1.35 and 1.53 months, the first calving age - by 1.0 and 1.2 months, the insemination index - by 1.42 and 1.93 times, the service period - by 8.8 and 12.2 days and increased fertilization after the first insemination by 1.7 and 2.0 times (P <0.05-0.01), rather than in the control. Heifers of the 1st and 2nd experimental group surpassed their peers of the control group in milk yield for 305 days of lactation by 109 and 125 kg (P <0.05), fat content by 0.16 and 0.27% and protein content by 0.04 and 0.07%.
The article describes the results of comparative studies on the influence of new immunostimulants on the course of postnatal recovery of the cows under conditions of intensive milk production technology. Injections of PS-2 (group 1) and Prevention-N-E (group 2) at a dose of 10 ml forty, twenty and ten days before calving, and a injection of PDE at a dose of 20 ml with E-Selenium of 10 ml (group 3) twenty days before calving prevent the occurrence of obstetric and gynecological pathology, improve reproductive qualities, as compared to the control group, where no biologicals were injected. This fact impacts the acceleration of the first heat onset by 13.7-21.1 days, the conception rate by 0.5-0.7 times, the service period by 16-29.9 days. A positive effect of the tested agents on metabolic processes, morphological and biochemical blood parameters, nonspecific immunological reactivity of the organism was also established. All these factors led to an increase in milk productivity for 305 days of lactation by 186-478 kg, at the same time, milk quality indicators improved correspondingly. Thus, biological preparations PS-2 and Prevention-N-E are highly effective means of preventing obstetric and gynecological pathology.
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