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Abstract

The article describes results of field experiments to identify the efficacy of the three methods in vivo washing out the fertilized eggs during embryo transplantation in 81 individuals of Akzhaik meat-wool breed sheep. As a result, it was found that after stimulation with Blood serum of mare in foal (BSMF) of the Shymkent biofactory 84.6% of ewes were inseminated and 2.54 developed
embryos per animal were obtained; after gonadotropic serum (GS) of the Pokrov biofactory above indicators were 78.6%, 2,78 and after follitropin (FT) of the Kaunas Endocrine Plant - 93.3% and 4.5, respectively. At extraction on the 2-3 day after insemination, the highest level of embryo washout (69%) is achieved by simultaneously washing the uterus horn and oviduct using a metal cannula with a roller to collect the washing fluid. Thus, this method can be recommended for the introduction of sheep embryos under transplantation in farm conditions.