Pig farms are prone to heat stress in summer. What should be done to effectively prevent this situation?

Planting trees around the pigsty and improving the microclimate in the farm area are effective ways to prevent heat stress in the farm.

2. Strengthen ventilation.

The pigsty should have north-south windows and French windows. Turn on all ventilation equipment in hot weather, which can effectively reduce the temperature of pigsty. Closed pigsty should adopt negative pressure ventilation. Hanging a wet curtain at the air inlet to cool the pigsty will have a good cooling effect.

Regulate nutrition

Adjusting dietary vitamins and mineral elements can alleviate heat stress. Electrolytic multivitamins, sodium bicarbonate and vitamin C can be added to drinking water. To reduce the density of pigs, vaccination, herd transfer and sow delivery should be carried out in the morning and evening when the weather is cool, so as to reduce the heat stress of pigs.

4. Build a bath in the fence,

The water inside should be changed frequently, so that pigs can bathe freely in it, which can also achieve a good cooling effect.

5. Add anti-heat stress diet or (Yucca extract)

Improve the heat stress resistance of cattle. Yucca saponin in Yucca extract, as a structural analogue of cortisol, can compete with cortisol for the same binding site, effectively blocking the cascade reaction caused by cortisol under stress conditions and quickly alleviating the negative effects caused by heat stress.

Summer heat stress is a common phenomenon in many pig farms. The key is that the infrastructure construction of pig farms needs to be considered in many aspects. Only by doing a good job in heatstroke prevention and cooling, ventilation and epidemic prevention can we effectively avoid heat stress.

6. Do a good job of heatstroke prevention and cooling in summer.

First, improve the internal and external environment of pigsty and do a good job in pigsty greening. Grapes, pumpkins and other vines can be planted on both sides of pigsty road, which can cover the pavilion with vines and play a role in shading in summer, effectively reducing summer heat radiation.

2. Installing thermal insulation materials in the pigsty, installing sunshade net or arbor outside the pigsty, and brushing lime slurry on the exterior wall and roof of the pigsty can effectively reduce the direct sunlight in hot summer and reduce the harm of thermal stress to pigs.

7. Improve the indoor environment

The pigsty is equipped with a disinfection device and can be sprayed every half hour in summer. When spraying without turning off the fan, the local temperature of the pigsty can be reduced. Wet curtain fan cooling method can also be adopted, which can reduce the indoor temperature by about 5℃, and the effect is remarkable.

At present, the most economical and effective indoor cooling method is dripping water, not dripping on the neck and back of pigs. The surface temperature can be taken away by evaporation to achieve the effect of cooling, but this method must be combined with ventilation to play a good role.

8. Strengthen feeding management.

Under high temperature, it is an effective heatstroke prevention measure to provide pigs with enough cool drinking water. On the one hand, it can supplement the water lost by pig heat dissipation; On the other hand, pigs drinking cold water will lower the temperature of digestive tract, thus lowering their body temperature. At the same time, it is necessary to reduce the density of pig breeding and the temperature of pig houses.

9. Increase the ability to resist thermal stress

When the environmental temperature is too high, some anti-heat stress drugs can be added to the feed to reduce the harm of heat stress to pigs. Generally, you can choose vitamin drugs, such as vitamin C, vitamin E and choline. Appropriate amount of sodium bicarbonate can also be added to relieve heat stress; Adding some Chinese herbal medicines can enhance the adaptability and heat stress resistance of pigs.