Cows can't put up with the heat, its most suitable growth temperature 8~16 degrees. Therefore, summer cooling should be a central part of the cow of the management, in order to reduce the cow heatstroke, reduce stress, make the summer milk production remained stable.
Many cows on the playground with the arbor, the arbor should be 5 meters advisable. The ceiling should have good thermal insulation performance. On sunny days cows can enjoy the cool wind, rainy days it can prevent the rain. If building the arbor, cows shower under the arbor, the cooling effect is better. The arbor must be handled by the specialist, if it is in bad management, often it will ruin in muddy, which does harm to the health of their cows, and results in the spread of the disease.
The above method is only suitable for the cooling fan that has not been born, which needs tedious work. Cooling fan combined the above advantages now, combined fan and water. When water flows into wet curtain, wet curtain fan produce negative pressure air through blow cold air to the cow body, makes the cows refreshed. Why we said cooling fan is most suitable to the barn installed, when it comes to the bullpen above are generally all around breathable ceiling, is absolutely we could not install air conditioning, that electric fan can't be refrigeration installation, and the air volume is limited. Cooling fan is the combination of the electric fans and air conditioning, which has large air volume and electricity saving.
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China [CN] 
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