First, weaning is unreasonable
Farmers adopt a weaning method for raising pigs. They are listed immediately after weaning, so that the piglets are suddenly centered on the mother, cohabitation, stable and comfortable living conditions suddenly changed, and it is difficult to adapt to the weight gain. The number of feedings of piglets should be gradually reduced within 5 to 6 days before weaning until complete weaning. This method is very beneficial to the growth of piglets.
Second, the feeding is not timely
The piglets failed to make up the feed in time during the lactation period. They did not eat well after weaning, and there was no milk supplement, which caused slow growth and stopped development. Generally, piglets should be fed at 7 days of age, so that when the sow's milk production declines, it can be officially supplemented to compensate for the shortage of sows. It began with a sweet, sweet, crisp, and digestible feed, and gradually changed to normal feed.
Third, the feed and feeding methods are unreasonable
After weaning, the piglets can not only eat breast milk, and the feed quality is also very poor. The water in the feed is less and the amount of daily feeding is also reduced from 6 to 8 times before weaning, and is drastically reduced to 3 times per day. The drastic changes in these conditions make The normal development of piglets is hindered. Therefore, when purchasing pigs, it is necessary to ask the seller about the feeding and management of the pigs in detail, so that the feed quality and quantity will gradually transition, the fine green roughage will gradually transition, and the feeding frequency will gradually transition from more to less.
Fourth, the environmental conditions change too much
Before the weaning, the piglets were centered on the mother and cohabited. After weaning, it is usually a pig's lap. Piglets can't adapt to this lonely life in a short time, especially in the cold weather in winter. If you don't eat well, you can easily develop a variety of diseases and even death. Therefore, when purchasing pigs, it is necessary to know as much as possible about the original feeding situation, to create a comfortable living environment for the piglets, and the changes in feeding conditions should be gradually carried out.
Five, management extensive
Nowadays, farmers raise pigs in a circle. Some pigs eat, sleep, and defecate at the same place. In addition, they do not clean and washer, causing environmental pollution and poor sanitary conditions. Especially in winter, it is easy to cause pigs. A series of diseases such as colds and diarrhea seriously affect the health of pigs and are extremely detrimental to growth and development. In the actual pig production, according to the speed of eating and eating, the temperament is good for 3 to 6 heads, so that the pigs compete for food, grow fast, and do a good job of training, let them eat at a fixed point, urinate at a fixed point, and sleep at a fixed point. Keep the environment clean.
Sixth, epidemic prevention, castration time is wrong
Farmers buy pigs to market, and carry out epidemic prevention and castration at the same time of purchase. In this way, the three unfavorable factors of weaning, epidemic prevention and castration are added to the piglets, so that the piglets can not recover their weight for a long time, which seriously affects the normal growth and development of the pigs. The pigs grow slowly and form a stiff pig. Cause undue losses. Generally, the boars that are not kept in the seed can be castrated at 30 days of age and the gilts can be used at 30 to 40 days of age. In order to prevent certain infectious diseases, the swine fever vaccine can be injected before the age of 30 days. The Danish vaccine can be used. It is carried out at 3 months of age.
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