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Kidding after Transfer of in Vitro Produced Saanen Goat Embryos into Local Ukrainian Breed Recipients in Different Seasons

引用

Open Journal of Ecology 2023年第8期13卷 549-559页

作者： Anastasiia Bogdaniuk Volodymyr Garkavii Oleg Berestovoyy Vasyl Tsvyk Narhiz Yusifli oleh sigunov Olga Kramareva Maryna Petrushko LLC “Institute of Contemporary Veterinary Technologies” Cherevky Ukraine Department for Cryobiology of the Reproductive System Institute for Problems of Cryobiology and Cryomedicine of National Academy of Science of Ukraine Kharkiv Ukraine Farm “Tatyana 2011” Cherevky Ukraine

In recent years, the demand for goat products has been growing due to the fact that goat milk has a number of advantages over cow milk, for example, it is low in lactose, and is considered less allergenic and easier to digest. To increase production during both breeding and non-breeding seasons and reduce the price of dairy products, it is necessary to effectively use reproductive management and assisted reproductive technologies. In vitro embryo production makes it possible to obtain a large number of eggs from goats, which for some reason are unable to conceive, but have genetic value. Afterward in vitro produced embryos can be transferred into recipient goats of other less genetically valuable breeds, such as the Ukrainian local breed. Therefore, the aim of the present study was to investigate the effectiveness of transfers of in vitro produced embryos of Saanen goats into surrogate sires of the Ukrainian local breed in different seasons. All manipulations with animals were carried out following ethical standards (Strasbourg, 1986). Six Saanen goats were selected as the oocyte donors. After the hormonal stimulation oocytes were retrieved by laparoscopic ovum pick-up. In vitro produced embryos were transferred laparotomically into 24 recipients of Ukrainian local breed. Fifty days after embryo transfers, pregnancies were determined by ultrasound diagnostics. Although the embryo development rate in the breeding season was 20% higher than in the non-breeding season, there was no difference in pregnancy and kidding rates between seasons. In conclusion, the transfer of in vitro produced Saanen goat embryos to recipients of the Ukrainian local breed gives the opportunity to achieve pregnancy and kidding regardless of the breeding season, which will enable a faster and more efficient increase in the livestock of highly productive goats in Ukraine in the post-war period.

关键词： Goats in Vitro Produced Embryos Saanen Breed Goat Reproduction Embryo Transfer Kidding Rate Breeding Season

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