Efficiency of various therapeutic methods in cows with hypovarianism
Hypovarianism is considered to be the significant problem of a short term economic use of highly productive cows and restoring their reproductive capacity after calving. It is diagnosed in 15,3 % of cases. The article presents data on the therapeutic and economic efficiency of different schemes for the pharmacological agents use in case of hypovarianism in cows and their reproductive function restoration. In the work the authors have tested an oily solution of progesterone, progestamag, cider and follimag in various combinations. The experiments were performed on animals with severe form of illness (when follicles diameter is less than 5 mm, progesterone concentration in the blood is from 0,15 to 1,57 nmol/l and 17|3-estradiol concentration is from 13 to 33 pg/ml) and with mild illness (follicles diameter is 7 mm and more, the level of progesterone in the blood is from 2,15 to 3,13 nmol/l and 17|3-estradiol concentration is from 14 to 47 pg/ml). Under severe form of gonatal dysfunction the combination of oligovitis, cider and follimag for 3 months determines the fertilization rate of 60 % of cows with the index being 1,7±0,33 and the treatment cost is 1155,0 rubles. Under a mild form of hypovarianism the combined use of these drugs provides pregnancy in 80 % of animals, and the combination of oligovitis, progesterone and follimag provides pregnancy in 66,7 % of cows and the costs account for 1456,3 rubles and 799,5 rubles respectively for one animal. To prescribe a gonadotropin-releasing hormone to animals with this hypovarianism is not justified. Under a high daily milk yield in cows, progestagens on the prolonged basis and then gonadotropin should be used to restore ovary cycle.