Pigs have thick skin under the skin and are difficult to dissipate heat. If the temperature in summer is too high, the appetite will be reduced, the weight gain will slow down or stagnate, and even heatstroke will die. Generally, the suitable temperature for piglet growth is 20-30 °C, the fattening pig requires 18-20 °C in the early stage, and 15-18 °C in the late fattening period. Therefore, in addition to newborn pigs, when the temperature reaches 30 °C or above, comprehensive measures should be taken to cool down and prevent heatstroke, so as not to adversely affect the normal growth of pigs. The following four measures should be taken mainly.
1, ventilation
Ventilation is one of the important measures for the heat dissipation of pig houses. During the summer season, the front and rear doors and windows of the pig house should be open to promote air circulation. In the hot summer months when the temperature is hot, the inflated pig houses with poor ventilation should be equipped with fans or fans, and mechanical ventilation should be carried out to eliminate the heat and turbidity in the house to prevent heatstroke.
2, cooling and cooling
That is to say, spraying cold water on the ground of pig houses, pigs, roofs and sports fields, which is one of the effective measures to cool down and prevent heatstroke.
3, green shade
There should be planned afforestation around the pig house to create a cool environment with a cool temperature. Outside the house, you should take a pergola, plant some vines, let them climb on the top of the pig house, shade and cool down, and avoid direct sunlight to the pig house.
4, build a bath
In the conditional pig farm, a bath should be added to the pig's playground in the summer for the pig to take a bath to benefit from heat dissipation. The bath can be made of masonry and cement. It is generally 0.5m deep and the slope is 30 degrees on one side. It is built into small steps to prevent the pig from slipping.
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