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Information × Registration Number 0219U001562, 0116U000510 , R & D reports Title Improve biotechnological methods to the fertility of farm animals popup.stage_title Head Kuzebniy Sergej, Registration Date 07-02-2019 Organization Institute of animals breeding and genetics UAAS popup.description2 More intensive growth of repair young growth was observed at the loose housing system of their contents. The age of the first insemination at heifers at loose housing contents was 17.7±0.26 months, and at fastened - 19.0±0.32 months. At animals domestic breeds are established that normal calving occurred in 89% of cows whereas heavy and pathological were observed only in 11% of cases. In the analysis of seasonal dynamics of duration recovery and service periods it is established that indicators during the winter period were less short. The longest service period was noted at cows in hot days of the summer period - to 135.5 days. Difference between the recovery period at firstcalf heifers and full-age cows made 21±3.5 days. At application of synchronization the efficiency of identification of animals in hunting decreases, it promotes lengthening of the period from an calving before the first insemination. The best results of stimulation of sexual hunting are revealed at use of medicines of progesterone, than when using hormonal medicines according Ovsynch. Product Description popup.authors Бойко О. В. Демчук С. Ю. Плотко Т. С. Покрищук С. М. Шарапа Г. С. Шикова Н. В. popup.nrat_date 2020-04-02 Close