1. In the normal feeding process, the growth rate of piglets per birth is slow and the body size is not good. Such sows are to be eliminated. It is affected by the genetics of the sows, which results in slow growth of piglets and finishing pigs. 2. Sows that have been eliminated are viral infections. For example, swine fever, pseudorabies, and sows who have acquired this type of infectious disease are cured after the use of drugs, and are likely to be re-infected at the next litter and will be transmitted to piglets. To avoid further economic losses, sows should not Hesitated to eliminate these sows. 3. Sows that are difficult to mate with, that is, use drugs to promote its estrus, but generally there will be difficulties when the next breeding, it is easy to cause empty, not breeding, resulting in economic losses. Such a sow can't stay seeded. It's best to eliminate it early. 4, there is breast inflammation, uterine inflammation, breastfeeding piglets ability decreased significantly, the decline of the milking power must be eliminated. If you think about it, you have a big litter of pigs but you are not able to feed it. Such a mother must be incompetent. It is best to rush to resign. In addition, some sows are affected by genetics, and the farrowing rate is very low. Only three or four piglets are born per child. Such sows are not qualified and must be eliminated in time. 5. Sows with defective limbs, for example, sows with crippled legs, will not only affect the breeding of the sows, but also will not be affected by normal activities. In addition, due to the inability to perform normal activities, the constitution will not be good. Even if piglets are born, piglets will not be healthy. IPL Hair Removal,IPL Laser Hair Removal,IPL Hair Removal Machine,IPL Laser Hair Removal Machine Shenzhen Jie Zhong Lian Investment Co., Ltd. , https://www.szmeizonscares.com