What are the heat sources of cowshed in summer? How to prevent heatstroke in cowshed?

(A) the heat source of cowshed in summer

In summer, the heat sources of cowshed are mainly heat dissipation of cows, strong solar radiation and high atmospheric temperature. If effective heatstroke prevention measures are not taken, the temperature in the barn will be too high, which will affect the fattening effect and health of cattle. Cows are characterized by heat resistance, and the heatstroke prevention measures in cowshed are very important. The purpose of heatstroke prevention in cowshed is to prevent heat radiation, increase heat dissipation in cowshed and reduce heat production in cattle.

(2) heatstroke prevention and cooling measures

(1) Strengthen the thermal insulation design of external structures (roofs, walls). The roof of cowshed has a great influence on the temperature of cowshed in summer. The roof should be made of materials with good thermal insulation performance and adopt reasonable multi-layer structure, which can increase the thermal insulation performance of the roof. The roof is made of galvanized iron sheet, 4cm thick polystyrene foam board and 5mm thick galvanized iron tile. The roof is also equipped with a transparent light strip and a double-layer hollow sunlight board with a width of 100cm and a fixed length. This three-layer structure greatly improves the thermal insulation coefficient.

(2) Strengthen the indoor ventilation design, and adopt the combination of natural ventilation and mechanical ventilation. Natural ventilation is through the open part of the wall. In summer, all the shutters can be removed, making the cowshed an open house with good ventilation. It's well ventilated. It can also increase the clear height of the cowshed, which is beneficial to ventilation. If the weather is hot and mechanical ventilation needs to be strengthened, an axial fan can be installed in front of Niutou. Every 4~5 cows have 1 cow. When the weather is hot, it is necessary to cool the cattle, spray them regularly, combine with fans, and take measures such as forced ventilation and spraying in summer, and the effect is very remarkable.

(3) Shading and greening. Practice has proved that shading can reduce the heat transferred to cowshed by 17% ~ 35%, and the shading of cowshed can be selected from building shading and greening shading. You can set up a awning on the playground of the cowshed, also called a shed. You can also plant green plants around the playground to provide shade. In fact, greening can not only shade the sun, but also cool down.

(4) Use cooling facilities. The temperature of the barn can be reduced by spraying, spraying, sprinkling water and washing the floor frequently. Practice has proved that the effect is very satisfactory. Some cowsheds can also choose mobile air coolers.