Pigs are often given a weaning method, and they are marketed immediately after weaning. The piglets were originally mother-centered and co-habiting with their siblings. The stable and comfortable living conditions suddenly changed, and they were difficult to adjust to affect weight gain. The number of suckling piglets should be gradually reduced until 5–6 days before weaning until they are fully weaned. This method is very beneficial to the growth of piglets. Some stress factors during weaning of piglets can cause piglets to grow slowly. 1, prenatal stress caused by piglets susceptible to stress The effects of community stress on pregnant sows can cause community stress when pigs that are unfamiliar with each other mix up to form a new group, or when competition occurs during sow feeding. Compared to piglets that have not experienced prenatal stress, the offspring of stress sows show more fear in stress and respond more strongly. Stress hormones in pregnant animals pass through the placenta, affecting the brain development of the embryo, especially in the middle third of the pregnancy. Research focuses on first-born piglets, which are descendants of gilts, and gilts are more likely to experience stress during pregnancy. 2. Stress of piglets during refueling Piglet weaning is the conversion of liquid breast milk into solid feed, which is a major stress for piglets. From the regular day of 16-24 times sucking breast milk into solid feed, piglets often refuse to eat. Once starved, the piglets will eat enough to eat too much solid feed. Due to immature digestive organs, digestive enzymes, and insufficient secretion of gastric acid, diarrhea is prone to occur. The smooth transition at this stage has become the most important aspect of conservation. The combination of wet-mix and water-cutting methods solves this problem. First, select the opening material for a large plant. After the piglets are weaned, cut off the water supply. After 3 hours, turn on the water. After 3 hours, turn off the water in the pan. As expected, the piglets are very thirsty, and they all come up for grabs. You will only hear the sound of “squeaking†and the sound will be wonderful. After the materials are mixed on time, the sink is removed after 3 days. The piglets can eat dry materials. This is a very good start to eat, Wang Shi, piglets do not diarrhea. Of course, you should pay attention to the hygiene of the manger. This method allows the piglets to be weaned and does not lose weight. The weight of the weaned pigs is increased by more than 200 grams per day for 7 days, reducing weaning and increasing the survival rate. Some only focus on lure-feeding. Openings that do not increase weight are easily distinguished.
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