THE QUESTION OF IMPROVEMENT TECHNOLOGY TRANSPLANTATION OF CRYOPRESERVED EMBRYOS CATTLE

  • S. O. Sidashova TOV "AF" Petrodolynske "(Odessa region., Ukraine)
  • S. I. Kovtun Institute of Animal Breeding and Genetics nd. a. M.V.Zubets of NAAS (Chubynske, Ukraine)
  • V. F. Stahovskyy Institute of Animal Breeding and Genetics nd. a. M.V.Zubets of NAAS (Chubynske, Ukraine)
  • A. B. Zyuzyun Institute of Animal Breeding and Genetics nd. a. M.V.Zubets of NAAS (Chubynske, Ukraine)
Keywords: heifers-recipients, cryopreserved embryos, transplantation, synchronization, ovaries, corpus luteum, prostaglandins, probiotics, normofloryzatsiya, Lactobacillus acidophilus, Bacillus subtilis

Abstract

Introduction. Now embryo transplantation technique widely used in breeding programs breeding centers in developed countries to accelerate genetic and technological progress. But in recent years have not observed significant progress in the success of engraftment of cryopreserved embryos, which for most households is 30 to 50 %, only the best breeding centers rises to 55 – 60 %. This suggests that, on the one hand, half of the outstanding animal genetic resources lost during the TE, and on the other that the successful spread of this method of reproduction in practice methodology for recipients in need of improvement.

Purpose – to compare the effectiveness of two teaching approaches to prepare heifers recipient for transplantation of cryopreserved embryos.

Materials and methods of research. The study was conducted at the point of transplantation of embryos JV "AF" Petrodolynske" (Odessa region.). The company has a breeding herd Ukrainian Red dairy cattle (600 cows) with an average productivity of 5.0 thousand kg. In March 2016 this sector the works transplant 64 embryos Angler breed German selection (firm «SPERMEX GmbH»). Embryos were obtained from 18 cows genetically valuable donor sperm using 12 producers.

According to the technological requirements, two groups were formed heifers recipients that met accepted standards for the age and development. These groups were used two alternative methods of training recipients to TE. Control of clinical and morphological and functional parameters of reproduction heifers in preparation, synchronization, TE and definition of pregnancy carried out a comprehensive visual refleksolohichnym clinical palpation method of diagnosis. Heifers controls to synchronize induced hormonal cycle subjected to processing in accordance with the protocol Ovsynch, as used in the experimental group we developed probiotic-cyclic scheme (the drug "Multybakterin veterinary Bs + La», which includes strains of microorganisms Bacillus subtilis and Laktobacillus acidophilus).

Results. Transplantation of thawed embryos Angler breed heifers was carried out only with the presence of morphologically typical of corpora lutea (positive recipients). Within 2 months spent visual refleksolohichnyy control animal behavior, and in 60 days - rectal examination pregnancy. The results of the studies found significantly higher (at 71,9 %) yield positive recipients daily routine TE than Ovsynch protocol, as well as the experimental group engraftment thawed embryos above 10 %.

Consequently, the use of probiotic protection promoted regeneration and recovery of genital tract mucosal heifers. It is proved that the development of functional entities ovarian and endometrial status have a close physiological relationship thus resulted in the formation of normal microflora dysbiosis and elimination of the state was the harmonization of sexual recurrence of experimental animals.

Consequently, effective TE in the economy in 3 – 3,5 years will be introduced in the heifers group herd milk production from 9 to 10 000 kg, which, in turn, become potential donors of embryos based economy.

Conclusions. The results showed that in industrial dairy complex advanced probiotic-cycle method of preparation of heifers to the THAT (using probiotic protect mucous membranes and the use of prostaglandins in accordance with the functional state of the ovaries) was more effective than the conventional scheme of hormonal stimulation as during synchronization cycle, and the level of engraftment embryos.

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Published
2017-04-27
How to Cite
Sidashova, S. O., Kovtun, S. I., Stahovskyy, V. F., & Zyuzyun, A. B. (2017). THE QUESTION OF IMPROVEMENT TECHNOLOGY TRANSPLANTATION OF CRYOPRESERVED EMBRYOS CATTLE. Animal Breeding and Genetics, 53, 292-302. https://doi.org/10.31073/abg.53.41

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