Piglets born per birth have a slow growth rate and are not good in shape. Such sows are to be eliminated.
Sows that have had viral communicable diseases should be eliminated. For example, swine fever, pseudorabies, sows who have acquired this kind of infectious disease can be re-infected when they are cured with drugs, and they may also be re-infected and transmitted to piglets in the next litter. In order to avoid more economic losses, sows should not hesitate to Remove these sows.
Breeding difficult sows. Even if you use drugs to promote its estrus, but generally there will be difficulties in the next breeding, it is easy to cause empty, not breeding, resulting in economic losses.
The occurrence of breast inflammation, uterine inflammation, a significant decrease in the ability of suckling piglets, and a decrease in milking power must be eliminated. 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.
Greenhouse Film Manual Roll Up
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