First, the preparation of the shed
It can build an economical and practical single-row plastic shed pig house, and the feeding method is all in and all out. After each group transfer, the fence and feeding trough should be thoroughly disinfected and left idle for a period of time. Each fattening pig (batch) is raised for 3 months, 4 months 1 cycle, and 3 batches are slaughtered every year.
Second, buy pigs.
Buy healthy ternary pigs from standardized pig farms without epidemic areas. Overfeeding is strictly prohibited within 5-7 days after entering the pig. After the piglets adapt to the environment, they will arrange castration, epidemic prevention and deworming. Take ivermectin orally to drive ascaris, inject ivermectin to drive scabies, and then use health care drug 1 week. Be careful not to buy local pigs in the society. One is illness, and the other is production performance.
A large number of experiments have proved that the daily gain of binary hybrid pigs is 15-20% higher than that of pure pigs, and that of ternary hybrid pigs is about 25% higher than that of pure pigs. At present, domestic sows are mostly bred with boars such as Duroc, Pietland or Hampshire to obtain the best three-way hybrid combination.
Third, moderate scale.
For small farms, the size of each batch should be 100- 150, generally not more than 300. Adhere to the principles of "leaving no weak, no strong" and "staying at night, staying at home in the day", that is, when turning around, turn more, leave no strong, turn big and stay small, and prevent pressure, bullying and fighting caused by turning around. According to the source, variety and weight, the group should be closed reasonably, and the time of closing the group should be arranged at night, not during the day. Each captive 10-30 heads.
Fourth, the supply of clean water.
The height of nipple drinking fountains is 35-45cm for medium-sized pigs and 45-55cm for large pigs. Generally, water consumption in winter is 2-3 times of food consumption, 4 times in spring and autumn and 5 times in summer. Drinking water for pigs must be disinfected, even tap water. If there is quality, it is necessary to filter the precipitate. Drinking unsterilized water can easily lead to diarrhea in pigs.
Fifth, pay attention to training.
Don't leave people within 3 days after pigs enter the pigsty. They should train in time and form the habit of eating, excreting and lying down as soon as possible. You can put some water and feces in a corner of the pigsty to guide you to pull feces and urine here.
Environmental control of intransitive verbs
The suitable temperature in fattening period is 15-20℃ and the relative humidity is 63-68%. Pay attention to ventilation to reduce the content of harmful gases in the air. When the temperature is low, thermal insulation measures should be taken, and the indoor temperature can be increased by adding padding, covering colored strips and plastic films. When the temperature is high, sprinkle water on the ground, ventilate, dehumidify and cool down.
VII. Health and Disease Prevention
Pay attention to eliminate the "four pests", cut off the route of disease transmission, and ensure biological safety. Keep the house clean and dry, clean it twice a day, and disinfect it 1-2 times a week, and disinfect it 1 time a day during the epidemic. Always observe the health status, mental state, eating, lying down and excretion, pay attention to the prevention and treatment of respiratory diseases, find and isolate sick pigs as early as possible, and give intravenous drugs to seriously ill patients. If epidemic diseases are prevalent in or around the farm, pigs are in sub-health state, epidemic seasons are frequent, or the feeding and management conditions and weather change suddenly, the following medication schemes are selected: 1 ton feed addition 15% chlortetracycline kg, 50% Astragalus polysaccharide 200 g, Radix Isatidis 2 kg, Radix Saposhnikoviae 300 g and Radix Glycyrrhizae 200 g, 12 days.