In summer, the temperature is high, the temperature difference between day and night is small, and the humidity is high. Because pig sweat glands are underdeveloped, the pigs are particularly afraid of heat, especially the high temperature and humidity, the pigs feel very uncomfortable. Therefore, the hot summer season brings about a lot of pig production. Great influence.
Sows: Sows have a long time in the herd and have a large body size. They are in a busy production state such as pregnancy and breastfeeding. The main purpose of sows is to produce piglets. Sows need to raise sows need to produce a large number of piglets, piglets born a significant and uniform, lactating sows lactation, piglets weaned body is large, high survival rate of piglets during lactation, sows after weaning can quickly estrus, participate in Breeding and pregnancy.
There are many factors affecting the number of litters in sows: whether the sow is in normal estrus, whether more eggs can be discharged, whether the discharged eggs can be combined with sperm to form fertilized eggs, whether the fertilized eggs can form embryos normally and develop until the end of pregnancy. . The practice of pig production tells us that due to the hot weather in summer, the duration of estrus in sows is shorter than that of other seasons, and the estrus performance is not very obvious, so sows are prone to missed allocation and empty. Usually if 2 to 3 sows don't get pregnant, the future pregnancy will be more difficult. Therefore, in the summer, it is necessary to strengthen observation of the estrus of the sow, and in particular, observe the observation every morning and evening and find that the gilts are bred in time for breeding. In summer, it is often the case that sows have low pregnancy rates, high abortion rates, high birthrates, and stillbirths, low birth weights, low survival rate of suckling piglets, and low weaning weight, which are very harmful to pig production. Measures must be taken to reduce the temperature, which is the basic measure to solve the problem of sow breeding in summer.
Due to the hot summer weather, poor sows’ appetite and reduced feed intake affect sow’s nutrition and embryo growth. As a result, the piglets’ birth weight is reduced, the sow's sow’s milk is not much, the piglets’ development is also poor, and the weaning weight is light. Affect post-weaning development and extend slaughter time. So try your best to make sows eat more feed. The approaches that can be taken are: the feed must be fresh and must not be mildewed. In the morning and evening when the temperature is relatively low, it is necessary to ensure adequate clean drinking water, preferably deep groundwater. Pigs love to drink such cool water. The pressure on the pig's drinking fountain should be appropriate, and the pressure is too low to easily lead to insufficient drinking water. In summer, it is also necessary to take measures to reduce the temperature according to local conditions. The best method is positive pressure mechanical ventilation (air blowing into the pig house). The position of the fan must be in the same position as the rest of the pig and should not be too high, otherwise it will not provide ventilation. Adhere to feeding according to the above methods, the sows eat more feed, adequate milk, piglets develop well, weaned bodies are large, sows are in good condition, it is easy to estrus after weaning.
Some pig farms spray water on the sow to cool down in the summer. This is not the best solution. Because the water spray can temporarily cool down, but then the temperature rises again and the humidity increases, making it more boring. At the same time, water spray can easily cause pigs to pull urine all over the place, and the hygienic quality of the pigsty becomes worse. The pigs are all excreted and more likely to overheat. In addition, in the summer, the density of pigs should be reduced, the air flow between pigs should be increased, and the heat transfer should be reduced. Generally, the body temperature of pigs can be reduced by 2 to 5°C.
Piglets: Feeding piglets must create a warm, clean, dry environment, regardless of the season. The most common problem in raising piglets in the summer is diarrhea, which causes diarrhea in piglets on the one hand because of problems of sow nutrition and lactation, and the lack of lactation. The number of immunized antibodies obtained from piglets through breast milk is insufficient, because the resistance is low and the constitution is weak. Disease can easily occur. On the other hand, it is hot during the summer, and various pathogenic microorganisms, especially E. coli, reproduce rapidly. The piglets have low resistance and are susceptible to infection. In addition, some other bacteria can also cause diarrhea in piglets. Therefore, we must pay attention to keeping the environment of the piggery clean, often cleaning the garbage such as fecal matter, regularly disinfecting, and doing all-in and full-out to prevent the occurrence of diarrhea. As long as there is no diarrhea in the piglets, there is no big problem in the piglet production stage. In summer, the piglets’ appetite is also affected, so the feed for summer piglets should not only be full price but also pay special attention to freshness and palatability. To ensure the palatability of the feed and increase the appetite of the piglets, do not change feeds (including premixes, concentrates, etc.), and if necessary, add flavoring agents to increase the food intake of the piglets. In the summer, ensure that the piglets are adequate, clean and cool. Drinking water.
Disposable Surgical Gowns,Disposable Medical Gown,Disposable Hospital Medical Gown,Disposable Surgical Protective Gown
Guangzhou Aikangli Medical Technology Co., Ltd. , https://www.aikanli.com