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Spring Breeding of Three-Year Hybrid Commodity Pigs
The suitable ambient temperature for controlling the pigs' microclimate pigs is: the weight is below 60kg 16～22°C, the minimum must not be lower than 14°C; the weight is 60～90kg 14～20°C, the lowest is not lower than 12°C; the weight is 90～100kg 12 ~16°C, minimum must not be less than 10°C. If the temperature is suitable, the pig's adaptability to the humidity is very strong, and the effect on the weight gain of the pig from 45% to 95% is not large, but the excessive humidity at low temperature and high temperature is harmful to the pig. Under normal circumstances, the humidity of 45% to 75% is the best. Spring light affects the rest and sleep of the pig. When constructing a pig house, it is best to create a darker environment, lighting only when feeding, so that the pigs develop the lights and feed on the lights. Once the lights are off, they sleep. If the air in the pigsty is dirty and the harmful gases such as carbon dioxide, ammonia, and hydrogen sulfide are too high, it will seriously affect the appetite, health, and growth of the pigs and cause respiratory and digestive diseases. Therefore, closed piggery should always pay attention to ventilation and keep the air in the pig house fresh. Feeding techniques try to use full-priced compound feeds. Feed soak softening, semi-dry wet feed, feed and soaking water ratio of 1:1 to 1:1.2, spring soaking time of 2 to 3 hours, 4 meals a day. Feed is generally supplied at about 5% of body weight and feeds 90% of feed per meal. Provide appropriate clean warm water after each meal. Spring and autumn cold weather pigskin doors and windows to use mats or plastic film to block, in order to prevent cold wind invasion; ground pad hay, keep the pen homes dry; appropriate increase the breeding density, conditional plastic canopy fattening pigs, the effect is very good. The slaughter weight of the three-way hybrid lean pigs in spring is about 95 kilograms in the spring and should not be slaughtered prematurely or too late so as not to affect the benefits.