Preventing over-heating of the house temperature To create a cool environment for pregnant sows in over-summer. The pig house should be kept dry, and the nets and doors should be installed to prevent mosquitoes and mosquitoes; equipment such as shading and ventilation should be provided to prevent the occurrence of heat stroke and other hot stress diseases. Sprinkle cool water into the house on hot days, but do not spray directly on the sow. When the temperature reaches 30°C or above, measures such as installing air conditioners and electric fans may be adopted to rapidly reduce the temperature to prevent stillbirth. Disease prevention Infection Summer sows are prone to lice and lice, especially if they are born in the ear of pigs. Sows in later stages of pregnancy should be reduced for the first 3 days of labor, and only postpartum wheat bran porridge can be fed. The sow was disinfected and cleaned with 2% potassium permanganate solution before being transferred from the farrowing house and allowed to dry. At the same time cleaning and disinfecting the delivery room can ensure the healthy growth of the piglets after delivery. Prevent environmental pollution, remove manure in a timely manner, and disinfect regularly, use disinfectant drugs and kill or sodium hypochlorite, etc., and do not disinfect sows with lime or alkali. Feed the wet mix in the pig's trough, avoid leftovers as much as possible, and remove leftovers in time to avoid mildew. The trough is cleaned daily and dried in the sun. Anti-mechanical abortion The number of specialized females who raise the number of female sows in summer should pay attention to reasonably arrange the rearing density of pregnant sows. For example, in a 7 to 9 square-meter sow house, up to 4 in early pregnancy and up to 2 in late pregnancy, it is best to keep the animals separately, so as to avoid strong bullying and uneven feeding. The fetus does not grow neatly and can avoid biting and colliding with each other due to high temperature irritability, resulting in increased stillbirth or miscarriage. If there are grasslands nearby, the sows can be rushed to the event to increase the health of the sow. When the farrowing is carried out, the farrowing time can be shortened. Anti-mosquitoes and biting swine are attacked by mosquitoes, flies, and poisonous insects, which not only affects rest and hinders the healthy growth of the fetus but also contagious diseases. Therefore, it is necessary to set up a gauze net for mosquitoes early in the summer. During the peak season of mosquitoes, vitamin B1 is fed once every 3 days and the amount of 30-40 mg is fed, so that the sows can produce a smell that the mosquitoes cannot dare to approach, and the tomato leaves and mint leaves can also be smashed. Wiping on sows has a good mosquito repellent effect without harming livestock. Prevention of human-induced gestation sows is most afraid of frightened, and summer stress is more likely to occur after being frightened. Therefore, the surrounding environment of the pig house should be kept quiet. In addition, it is not advisable to transport sows in long distances in summer to avoid death due to crowded heat stress. It is also necessary to carry out cool nights when purchasing fine breed sows or short-distance transportation. Prevention of feed in the summer In the feeding method and feeding quantity, the number of feedings should be increased. Each feeding amount should not be too much, and it should be fed early in the morning, fed at night, and fed at night. Prior to each feeding, the remaining material in the trough should be removed and cleaned before feeding. In addition, it is necessary to ensure that the drinking water on the playground in the pig house is continuous. Add 25 salt or 0.01% potassium permanganate to the drinking water, and place the water cooler in a cool place to prevent the sunlight from heating up. At noon the weather is hot and the sows have poor appetite. They can be fed with some concentrated feed.
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