A Study On Characteristics Of Tree Water-consumption And Application Of Solid Water For Drought Resistance Afforestation

Embryo transfer technology invented duingl960's to 1970's following the occurrence of Artificial Inseminate(AI) is one biotechnology,is an impovtant pait of embryo erginees.commonly,it is also called "producing fetotus in other cotews not his own mother's." that is,transfer a earth ernbrgo from afeltilized quality cow to the covespording pact in the genitia of another cow belonging the same brecd and in the same physiological conditionJn fact,Embryo transfer technology can pvoviele a technology guarantee for doing to increase pvoducts qcuantity and quality,and its functiov of improving daciy breed and in our courtiy zepcoducting lavgely in a shovt time can not be take place.Indaciy industiy to improve breed by introducing tive cattle hase a secies of problems,suchas high cost,inconvenienu in transportation,comple quacantine and soor.But by impocting freized embryo,using lvcal cow as receptors,pvoducing exllent descendants,abvve problems can be solved.During 2004~2005,JiLin Academy of Agricultural science and JiLin Chun guang milk Group compony,used high porfovnance cow as donocs,and low pecformance cow and local cattlc as zeceptozs,had a further study on every step of embryo trasfer,and exploioling of daity industy ,obtained some resvlts and economic effects.