23 Jul Method for improving the embryo transplantation pregnancy rate for cattle and sheep
Abstract
The invention provides a method for increasing embryo transplantation pregnancy rate of cattle and sheep, which increases embryo transplantation pregnancy rate through improving IFN-tau level inside maternal uterus. The invention also provides a plurality of feasible methods for improving IFN-tau level, which comprise adding IFN-tau into transplantation liquid during embryo transplantation and transplanting parthenogenesis embryo or living tissue fragments together with normal embryo. Through the method provided by the invention, embryo transplantation pregnancy rate of cattle and sheep can be substantially increased by 15 percent to 20 percent as compared with the control group; meanwhile, the invention has a simple operation, low application cost, outstanding effect without any harmful influence on animal, thereby being suitable for extensive application in cattle and sheep embryo transplantation industry and embryo engineering and having huge market potential.
Year: 2008
Country: CN
Doc No: 101116640