First, weaning irrational farmer pigs to take a weaning method, listed immediately after weaning, so that the piglets were originally the mother as the center, cohabitation between siblings, stable and comfortable living conditions suddenly changed, it is difficult to adapt to affect weight gain. The number of suckling piglets should be gradually reduced until the complete weaning within 5-6 days before weaning. This method is very beneficial to the growth of piglets. Second, the feed is not timely Feeding piglets in the breastfeeding stage can not make up the material in time, after weaning can not eat well, no milk supplement, causing slow growth, development stopped. Feeding should normally begin at 7 days of age in piglets so that when the sow's lactation levels decline, it can be officially supplemented to make up for the lack of sow milk production. It started with fragrant, sweet, brittle and easily digestible feeds, and gradually changed to normal feed later. Third, feed and feeding methods are not reasonable after weaning, piglets not only can not eat breast milk, and feed quality is also very poor, feeding more water, less material, the number of daily feeds from weaning before 6? 8 times, sharply reduced to day feed 3 Secondly, drastic changes in these conditions hinder the normal development of piglets. Therefore, when buying pigs, it is necessary to inquire about the seller's feeding and management of the pigs in detail, so that the quality and quantity of feeds will gradually transition, the fine green forage will gradually transition, and the number of feeds will gradually transition from more to less. Fourth, changes in environmental conditions too large piglets before weaning mother-centered, cohabitation between siblings. After weaning, it is usually a pig lap. Piglets cannot adapt to this lonely life for a short period of time. In particular, the cold weather in winter can not sleep well and can easily cause multiple diseases and even death. Therefore, when purchasing pigs, it is necessary to understand as much as possible the original feeding conditions, create a comfortable living environment for the piglets, and gradually change the feeding conditions. V. Extensive Management Farming pigs are usually pigs and laps. Some pigs eat, sleep, and excrete at the same place. They are not cleaned and washers, causing environmental pollution and poor sanitation, especially in winter. It is easy to cause a series of diseases such as colds and diarrhea in pigs, which seriously affects the health of pigs and is extremely detrimental to growth and development. In the actual pig production, we can use 3 to 6 heads as a circle according to the speed of eating and drinking. The pigs compete for food, grow fast, and do a good job in tune up to make it a fixed point of eating, defecate excrement, sleep on a regular basis. To maintain environmental hygiene. Sixth, the epidemic prevention and castration time is not for farmers to buy more pigs to the bazaar. At the same time, they should be given epidemic prevention and castration. In this way, the three unfavorable factors of weaning, epidemic prevention and castration were all added to the piglets, so that the piglets could not recover in a long time, which seriously affected the normal growth and development of the pigs. The pigs grew slowly and formed stiff pigs. Caused undue losses. Generally, small boars that do not stay in the species can be castrated at 20 days of age and gilts can be cast at 30-40 days. In order to prevent certain infectious diseases, swine fever vaccine can be injected before the age of 30 days. Danish vaccines are available. At 3 months of age.
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