At present, most of the rural areas have implemented the new technology of frozen semen breeding for cows (referred to as cold blending). However, after some cows are cold-adapted, the rate of mating quaternia is not high. This is why? According to surveys, the cold-distribution work is generally undertaken by rural livestock technicians. They have no problem in inseminating the cows. The main problem lies in the inaccuracy of the method of thawing the frozen semen. The specific operating methods for thawing frozen semen are described below for reference: Frozen sperm must be refrozen before use, and the rate of sperm resuscitation after thawing depends on the temperature of thawing; when thawing, it must be done three times faster, ie quick, fast, and fast. First, the thawing solution is injected into a sterile glass tube, and then warmed with warm water of 40° C. to 45° C. When the temperature of the thawing liquid reaches 40° C., the liquid nitrogen tank is opened, and the frozen essence particles are extracted outwardly with a long tweezer. Immediately put into the thawing solution that has been warmed, and shake the tube while melting it for 5 to 10 seconds. When the frozen essence particles are melted until the grain size is large, the test tube is quickly taken out of the water surface, and shaking is continued until all are dissolved. Using the above method, the thawed sperm has good viability and longer survival time. If the test tube is removed and the test tube is taken out of the water, the sperm will die quickly. Semen thawing immediately after the best insemination, should not be stored too long, generally not more than 2 hours. Otherwise, sperm motility significantly decreases and affects conception rates. In order to achieve rapid insemination after thawing, it is best to defrost the semen after the cow is protected. Cat Toilet Litter Box Cats Use Toilet,Potty Training Kittens,Cat Toilet Litter Box,Cat Trained To Use Toilet YIWU CHUANGCHENG IMPORT&EXPORT CO.,LTD , https://www.tradingsix.com
Cold thawing technology is the most important