论文部分内容阅读
羔羊出生以后,由母体内进入外界环境,其生活条件骤然发生完全不同的改变,由通过胎盘进行气体交换,转变为自行呼吸;由原来通过胎盘获得营养物质和排出废物,变为自行摄食、消化和排泄。因此,机体发育不够完善,抗病能力较差,加上青海气候寒冷,纯种母羊保暖性较差等原因,如果护理不善,羔羊挨冻受饿。另外,脐带消毒不严,哺乳卫生不良,吃初乳
After the birth of the lamb, the living conditions within the mother’s body enter a completely different environment. Sudden changes in living conditions occur. By the gas exchange through the placenta, the lamb is transformed into a spontaneous breathing. Nutrients and waste are discharged through the placenta to become self-contained and digested And excretion. Therefore, the body development is not perfect enough, disease resistance is poor, coupled with the cold climate in Qinghai, purebred ewes and other poor thermal insulation and other reasons, if care is not good, the lamb is cold and hungry. In addition, the umbilical cord is not strict disinfection, breast-feeding poor health, eat colostrum