Design and planning of pig farm

① Pig industry is a long-term industry, and long-term planning must be carried out.

② Water, electricity and traffic conditions: the daily water consumption of a 10,000-head pig farm is 150 ~ 250 t, and the water quality should meet the drinking standard; Except feed processing, the power consumption is 80 ~ 100 kW. The material transportation is large, which is convenient for burying glass.

③ Hygienic and epidemic prevention conditions: comprehensively consider the factors such as topography, landform, location, water source, soil and climatic conditions, and stay away from residential areas, farms, slaughterhouses and traffic trunk lines.

④ Manure treatment and environmental protection conditions: adopt eco-environmental protection scheme, and combine with vegetable fields, fish ponds, orchards and farmland as much as possible to make sewage harmless and reduce. However, under the condition of high temperature and high humidity, the difference between the partial pressure of water vapor on the surface of the pig and the partial pressure of water vapor in the air decreases, and the amount of evaporation heat dissipation decreases, which makes it more difficult for the pig to dissipate heat, thus aggravating the thermal stress of the pig. . When the temperature is 42℃ and the climate is dry, sows will not die of heat; When the temperature is 37℃ but the humidity is high, the sow will die of heat.

High humidity is beneficial to the reproduction of various pathogenic microorganisms and parasites, increasing the incidence rate and aggravating the condition of pigs. Pigs are prone to scabies, eczema and other skin diseases, as well as epidemic infectious diseases such as piglet paratyphoid, piglet dysentery, swine fever and erysipelas. Don't wash the pigsty floor with water.

Even if the floor must be washed, it must be done on a sunny day with good ventilation, so that the air and the floor can be dried as soon as possible.

Keep indoor ventilation

Increase the window area: increase the ventilation inside and outside the house;

Adding French windows: French windows have more obvious ventilation effect than upper windows, because the wind passing through French windows blows directly to the ground, which makes it easier to evaporate water;

Use a fan: A fan can enhance air flow and is very effective when used in an empty house. When the nursery was not dry, we used a big fan to blow air day and night, and soon the nursery was dried.

Use materials with good hygroscopicity, such as quicklime.

Some people may say that quicklime will give off heat, which can increase the indoor temperature, and it is not suitable for use in pig houses in summer; The advantages of using quicklime outweigh the disadvantages. First, the heat generated by quicklime is very small, which will not significantly increase the indoor temperature; Secondly, after the air is dry, the sow inhales dry air, which is more conducive to the loss of heat in the body. That is, as we said before, high temperature and low humidity will not kill the sow, but the sow will die when the temperature is not so high but the humidity is high.