Pigs have low feed utilization and slow weight gain when temperatures rise above 35°C or fall to minus 5-10°C. The high temperature season should be based on different types of pigs and different physiological stages of the pig to give different feeding and management. Boars: Feed twice a day. Feed green feed or thinner at noon. Breeding and sports are performed in the morning and evening. Don't spray water or spray cool water immediately after breeding. From 1 pm to 3 pm every day, the pig body is sprayed with water once on the ground, and the light is reduced to 8-10 hours. If the number of breedings is small, the feed should be concentrated to prevent over-fertilization and poor sexual desire. Sows: Avoid sowing breeding in the hot season. Pre-pregnant (0-84 days) sows should be dominated by green coarse materials, with appropriate concentrates, to reduce the rearing density, and raise 2-3 per round. In the second trimester of pregnancy and during the lactation period, the pig should concentrate on the raw material to match the green material. The coarse material can be fed without feeding, and the feed can be fed 3 times a day. Add 1-1.5% baking soda, 0.3% salt. Reduce fine material 2-3 days before childbirth, and feed more green material. The ratio of bran in the concentrate should be increased to prevent constipation and top food, resulting in no postpartum food. After feeding, feed bran warm salt water once. Feeding piglets and piglets: lying on wet ground, watch for changes in weather to prevent cold pulling or diarrhea. Keep the dough dry, clean drinking water, often disinfected. Prevention can be used per kilogram of material plus 120 milligrams of oxytetracycline for several days and several days of treatment, with oxytetracycline 200 milligrams per kilogram.
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