Abstract : retention of the afterbirth of the cow is the comm on disease to seriously affect the economy mileage 文摘:奶牛的胎衣不下，是严重影响奶牛经济效益的常见病。
3.
The mother usually takes care of this by tearing off ( and sometimes eating ) the membrane , and then severs the umbilical cord 母犬也通常会将胎衣撕开（有时是吃掉） ，然后咬断脐带。
4.
Saussurea medusa maxism was used by several minorities in china , because it have some special pharmaceutical effects such as detoxification , detumescence , abirritation , antitumor , anti - radiation and anti - ageing etc . but saussurea medusa maxism was on the edge of annihilation for being exploited excessively at a long time . still the natural resource of it is hard to meet the increasing need of market . so ths botanical scientist paid more attention to the relationship between protecting this endangered species and producing it ' s pharmaceutical ingredient 具有清热解毒、抗炎镇痛、祛风除湿，通经活络，壮阳补血、消肿、利痰、敛伤的功效。用于炭疽病、中风、风湿关节炎、崩漏带下、痛经、胎衣不下、肾虚腰痛、遗精阳痿等病症。近年来又发掘出如延缓衰老、抗肿瘤、抗辐射等更有价值的效用。
