S. Sidashova. Reproductive potential of heifer under different schemes of organization of herd reproduction of industrial dairy complex

UDC 636.2.082.269

DOI: 10.31521/2313-092X/2018-4(100)-16

S. Sidashova

According to the results of the implementation of the innovative pattern for the reproduction of the experimental group, during the three-month monitoring more fertilized heifers compared to the control were received. In the group of experimental recipients, where the previous normo florization of the mucous membranes of animals was carried out, the healing of the thawed embryos was 50.00%, and in the control, according to the traditional scheme of preparation – 33.33%.

We monitored the Ukrainian red dairy breed in the conditions of the industrial complex for three years and found that the improved reproduction scheme (embryo transplantation + prophylactic normoflorization of the mucous membranes) allowed to increase the reproductive potential of repair heifers in the experiment: the total fertility is higher by 20.36% , the safety of first lactation cows – by 14.62%, the decrease in prenatal losses by 3.69%, and the service period by 8.9 days.

Differential palpatory diagnostics highlighted the dynamics of the spread of degenerative changes in the layer of ovarian follicular tissue, namely, the presence of large follicular cysts and multiple polycystosis in both groups, which confirms the already established tendency for optimization of ovary ovogenesis and morphogenesis in the experimental group.

The prolonged positive effect of the probiotic scheme of mucosal normoflorization with the help of the drug “Multibacterin veterinary suspension” on the reduction of the service period of the first-born in the experiment (for 8.90 days) and reduction of cystic pathologies of the ovaries was studied. The mechanisms of them require a more detailed study to optimize the schemes of preparation of recipients to procedures ET.

The introduction of breeding programs for the herd, including intensive reproductive hemorrhage patterns and embryo transplant biotechnology, requires an additional stage of biosecurity of the livestock through prophylactic normoflorizationof the mucous membranes of the digestive and genital tract.

Keywords: repair heifers, industrial technology, reproductive biotechnology, embryo transplantation, normoflorization.


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