Fermentation bed pigs how to choose pigs?
What are the reasons for farm site selection?
First of all, the farm site selection should follow the principle of saving land, not occupying farmland, and not occupying or occupying farmland. It is forbidden to build pig farms in tourist areas, nature reserves, water conservation areas, and areas where environmental pollution is serious.
Secondly, the farms should be built in areas where the terrain is relatively dry, leeward, sunny, well-watered, non-polluting, power-supplying and easily accessible.
Third, pig farms should be more than 500 meters away from railways, roads, towns, residential areas, and public places, and leave the slaughterhouses, livestock product processing plants, garbage and sewage treatment plants, and scenic tourist areas more than 2,000 meters. How to lay out a pig farm is reasonable. When constructing a pig farm, try to achieve a unified planning, reasonable layout, production, life and other functional areas to be scientifically arranged. The prevailing wind direction in the farm production area in summer should be arranged at the downwind or lateral wind direction in the personnel life management area. The isolation house and the waste treatment area should be arranged in the downwind direction of the pig house. The pig house is generally east-west (in the mountainous area is generally sunny), and the east-west or south-north direction does not exceed 30 degrees. The longitudinal axis of the pig house is maintained at an angle of 30 to 60 degrees with the local prevailing wind direction; the distance between adjacent two pig house vertical walls It is generally 7~9 meters, and the distance between the end walls is not less than 10 meters. The pig farm net road and the sewage are separated as much as possible, and do not interfere with each other. Feed and diseased pigs' transport passages should be avoided as far as possible. Workers should not cross the pig breeding area as far as possible; The production area is surrounded by walls or other effective barriers. There is a duty room at the gate entrance and exit, and personnel changing and disinfection room.
How to determine the size of the fermentation bed The determination of the area of ​​the fermentation bed should be based on the type, size and number of pigs. Practical experience shows that nursery pigs account for 0.3-0.8 square meters per head, generally accounting for 0.5 square meters per head; finishing pigs account for 0.8-1.5 square meters per head, generally calculated at 1.2-1.5 square meters per head; sows Each head covers an area of ​​2 to 2.5 square meters.
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