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Pregnancy sows
Whether the sow's sows' feedstuffs are formulated or whether the method of feeding is appropriate has a great influence on the sow's production and the healthy development of the piglet. Therefore, according to the individual conditions of the sow and the seasonal changes, the formula should be adjusted properly for reasonable feeding and management. The extent to which a pregnant sow gains weight is better, depending on the maternal age and mating time. Generally speaking, the weight lost during childbirth and lactation should be equal to that obtained during pregnancy. Specific feeding and management points are as follows: Selection of feeding methods 1. Grasping the two in the middle This method is used for sows whose body is relatively thin after weaning. Due to the high consumption of physical force in the previous fetus, in the early stages of the new pregnancy, nutrition should be strengthened to restore the body's health to a certain level. 2. Backgammon This method is suitable for sows that are born and the sows that are bred during lactation. Because the primiparous sows themselves are still in the stage of growth and development, the sows that are bred during lactation have heavy production tasks and require large amounts of nutrients. 3. Pre-coarse fine This method is suitable for well-conditioned sows. In the early stage, the main focus was on green feed and feeding was based on feeding standards. In late pregnancy, the fetus develops rapidly and the amount of concentrate should be increased. If the feeding points in the first trimester of pregnancy are confirmed, the nutrition will be gradually increased, especially the animal protein feed, and care must be taken not to feed the single feed. On sunny days, we must raise the breeding sow on the playground so that it can be exposed to sunlight and feed it with sufficient green feed. Feeding methods in late gestation When mating early sows, it is necessary not only to consider fetal nutrition, but also to provide necessary nutrition to sows. With the passage of pregnancy, it is necessary to increase the amount of feed, but also to increase the quality of high protein feed. Precautions 1. Vitamins, especially vitamin A, are more essential, and lack of vitamin A can prevent estrus and conception. Even fetuses and poor fetuses can cause night blindness. 2. When there is a shortage of green feed in winter, fish oil should be used and vitamins B1, B2, and D should be supplemented. 3. The weight loss of Landrace pigs immediately after delivery was due to the number of litters, the development of piglets, and the rapid weight loss of sows. In order to prevent weight loss, it is necessary to increase nutrition from the gestation period so that it has a tolerance in advance. 4. The feed given in the 4 weeks prior to delivery should be close to that of the sow of the lactating sow, so that it gradually adapts to avoid adverse reactions to sudden change in appetite and palatability after delivery. 5. On the 2nd to 3rd days before delivery, although the pig has a good appetite, it is also necessary to reduce the feed amount, feed the easily digestible feed, and add water to mix into a soup to reduce the intestinal excrement and facilitate the delivery. 6. Do not exercise sows vigorously, let them be natural, and prevent slippery feet. During the summer season, pay attention to ventilation and keep it clean and dry.