Studies On The Impact Of Copper On Carakul Coat Color

Copper elements is one of the essential microelements, which widely participate in many important physiological processes of the animal body.This process include much synthsis of important enzyme and protein.Copper element promotes the growth of animals, meanwhile, plays a very important role in colour changing. This point has important application value in research. The impact of copper on the coat color changing which it can promote research on animals to the copper tolerance and also conducive to the improving of new coat varieties.The fur’s color of Xinjiang Carla Kurt sheep is black befor lambing, and becoming brown after lambing.and then becoming gray after the weaning. The Xinjiang Tarim River Basin is an region which is typically lack of copper.Using estrus synchronization,natural mating15sheeps what have the same weight and age and the birth to three groups for researching.There are control group and test group one and test group two.Adding the copper7mg/kg to the test one and Adding the copper15mg/kg to the test two,observing the changing of colour and copper elements of Carla Kurt sheep, determination of the content of copper and trace elements, the activity of tyrosinase and the TYR gene’s expression among different periods. Results: the coat color fade quitely serious because of lacking of copper, the amount of the copper content in the direct affecting other traceelements of the absorption and activity of tyrosinase and the TYR gene expression.Comprehensive experimental analysis.lacking of copper affects the color and quality of the wool,and economic benefits, this study conducted a preliminary study on its mechanism for new coat color varieties and researching metabolism of copper in the Karakul Sheep and providing technical support and support, and providing scientific data for the development of the animal husbandry in south of the Xinjiang.