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How to avoid weight loss of piglets after weaning?

2021-01-28

1. Strengthen the feeding and management of sows
 
The birth weight of a piglet is closely related to the physique and weight of the weaned piglet. Therefore, in order to avoid weight loss after weaning, the feeding and management of pregnant sows must be strengthened first to increase the birth weight of the piglets and increase the lactating sow’s milk production , So as to increase the piglet's weaning weight, and enhance the physical fitness and resistance of the weaned piglet. Because most of the increase in piglet weight is in the late stage of pregnancy sows, it is necessary to do a good job of fetal attack, and at the same time, it can also reserve a lot of nutrients to prepare the sows for postpartum lactation. Pay attention to the timing of the fetus attack. If the fetus is attacked too early, the sow’s body condition will be over-fat, resulting in a decrease in feed intake in the later stage, which will affect the growth and development and weight gain of the piglet during the embryonic stage. Mammary gland development will also be restricted. Pregnant sows should be raised in stages, and different feeds and feeding methods should be used at different periods to meet the different nutritional needs of sows during pregnancy, to achieve the purpose of increasing the newborn weight of piglets and the sow’s milk production, and then obtain The purpose of larger piglets at birth weight and better vitality.
 
2. Strengthen feeding management
 
Strengthen the early feeding and management of piglets. Piglets are more sensitive to environmental temperature changes, especially newborn piglets have higher requirements for temperature. Therefore, it is necessary to do a good job of heat preservation of piglets, preheat the farrowing room in advance, and prepare an incubator. Piglets should be supplemented with iron at the age of 1 to 3 days to prevent piglet anemia and increase piglet resistance. The growth rate of piglets is relatively fast. With the growth of piglets, breast milk can no longer fully meet the nutritional needs of piglets for rapid growth and development. Therefore, it can be fed at 7-10 days of age and choose feeding trough material. Work is very important. It plays an important role in the development of the piglet's gastrointestinal function and the ability to eat feed in the future. It is the key task to avoid weight loss after weaning. The selection of teaching trough materials requires easy digestion and absorption, good palatability, comprehensive and balanced nutrition, no antagonistic factors, and nutrients that promote intestinal health. It is necessary to be scientific and reasonable when feeding the teaching trough. The main purpose of the first few days of feeding is to familiarize the piglets with the feed. After the piglets learn to eat, a small amount of diligent addition method should be adopted to allow the piglet’s stomach to have a process of adaptation. Piglets should not stop feeding immediately after weaning, but should be fed until 7-10 days after weaning, and then change the nursery feed.
 
3. Scientific weaning
 
When weaning suckling piglets, we must choose the weaning method suitable for the farm and conduct scientific weaning to reduce the occurrence of weaning stress. Generally choose the gradual weaning method, that is, gradually reduce the number of lactations and increase the number of feedings until the feed can be fully consumed. It should be noted that after weaning, in order to reduce the psychological and physical stress of the piglets, the sows can be driven first. Leave the pen and let the piglets stay in the original pen or herd for a period of time, and then mix and transfer the piglets after they adapt. There must be a planned transfer. When mixing, try to mix the original litter into a group. When transferring, group the piglets according to their sex, vitality, size, strength, etc., so as to avoid fighting. All-in and all-out methods should be implemented for piglet feeding. It is strictly forbidden to raise piglets of different ages in groups. Weaned piglets have poor resistance and are prone to diseases. The all-in and all-out feeding method is convenient for cleaning and disinfection of nursery houses and can be effective Reduce the chance of piglets getting sick after weaning.
 
4. Reduce the occurrence of stress
 
Piglet weaning stress and environmental stress can easily cause the piglet to lose appetite and sleep abnormally. In severe cases, it can also cause the piglet to become sick and make the piglet lose weight. Therefore, it is necessary to minimize the occurrence of stress during the breeding process. Choose a milder method of weaning to avoid severe stress caused by sudden weaning, maintain a suitable environment in the pen, adjust the temperature of the nursery to the temperature of the delivery room before transferring to the group, and then gradually reduce. Keep the house clean and dry, pay attention to ventilation, but in cold weather, avoid letting cold wind blow directly on the pigs to reduce environmental stress. A few days before weaning, anti-stress drugs can be added to the feed or drinking water to prevent the occurrence of stress.


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