The success of frozen embryo transfer of sheep in Xihai Town, Qinghai Province

Introduction: the frozen embryo transfer of sheep in alpine area has been successful in Xihai Town, Haibei Prefecture, Qinghai Province Recently, 63 local Tibetan recipient ewes successfully gave birth to 30 thoroughbred Taosaite lambs The conception rate of embryo transfer reached 47.6%, reaching the same advanced level at home and abroad It marks an important breakthrough in transforming bioengineering technology into animal husbandry production in Qinghai Province It not only fills in the blank of similar technology in Qinghai Province, but also provides experience for the application of this technology in the alpine region of China Embryo transfer, also known as fertilized egg transfer, is popularly known as "pregnant by abdomen", which is a new technology of livestock reproductive bioengineering Its popularization and utilization can greatly improve the utilization rate of breeding stock, shorten the generation interval in breeding and improvement of breeding stock, accelerate the propagation speed of excellent breeding stock, and have the advantages of less investment It is of great significance to the improvement of breeding stock and production of animal husbandry in Qinghai Province, and will play a huge role in promoting the animal husbandry in Qinghai Province to a modern high-efficiency and high-quality animal husbandry The project is the key project of "seed engineering" in Haibei Prefecture of Qinghai Province to speed up the adjustment of the industrial structure of agriculture and animal husbandry Implemented by the Institute of animal husbandry of Haibei Prefecture, Qinghai Province, with the assistance of Lanzhou Institute of animal husbandry of Chinese Academy of Agricultural Sciences and China Agricultural University, the frozen embryos of a new breed of mutton sheep, hornless Dorset, were introduced from Australia On December 24 last year, 63 local Tibetan maternal sheep were selected for transplantation In the middle of May this year, 30 Communist thoroughbred Taosaite lambs began to give birth, with an average birth weight of 4.5kg and the heaviest of 5.7kg, which is 30.4%, 32.2% and 29.7% higher than that of the local Tibetan lambs, Qinghai semi fine wool lambs and TaOx Tibetan hybrid lambs, respectively, and the growth speed is significantly higher than that of the local newborn lambs, with an average daily gain of 0.33kg, double the year-on-year growth rate (author:) share to feed Weibo share to: