Plastic greenhouses are commonly used by farmers to raise pigs, but many pig farmers have caused problems due to improper use.
Plastic greenhouse FAQ
Large temperature difference between day and night Compared with closed pig houses, plastic greenhouses have much poorer insulation performance, especially in winter evening, the temperature will drop to a very low level, making the temperature difference between day and night quite large. Pigs with small weight can not tolerate such a large temperature difference. On the other hand, pigs with severe morbidity did not show morbidity, but their growth rate slowed down significantly and the feed utilization rate decreased significantly.
Humidity is due to the fact that the plastic cloth is impervious to water. At night, the water vapor inside the house cannot be discharged. When the weather is cold, a layer of ice or frost is formed on the roof. When the temperature rises again in the second day, these frosts are turned into water again. , fell to the floor of the pig house, so that the cycle, the house has been very wet.
Responses
When the temperature is low, cover the straw and install a series of fixed pulleys on the roof to fix the pulley and the roof. The height of the pulley is higher than that of the rolled straw curtain so that people can uncover the straw curtain every day.
Ventilation Vents This hole is best left on the roof, leaving a gap of about 10 cm between the eaves and scaffolding. The grass can be rolled up during the day to be ventilated, and can still be ventilated at night when the straw curtain is down, but still covered due to the above With straw, the insulation performance is still very good. In case of windy weather, it is also possible to put a part of the straw down slightly during the day to cover the vents.
Drainage ditch is provided to facilitate the drainage of sewage on the side of the pig house to install a large barrel, and a rough water pipe is installed below. When the gully is needed, the water pipe should be opened and flushed down with a rush of water. This is very practical for a greenhouse with convenient drainage and drainage. The above is fixed on the wall or a large bucket with iron frame, leaving a rough water pipe below. The easiest way is to use a petrol can and weld an iron pipe on it. Put a soft water pipe on the pipe and lift it normally. Rinse once a day, the air in the home will be much cleaner.
Adding a double layer of plastic film plus a layer of plastic film will increase the insulation performance, and it will have a once and forever effect on the pig houses that are not convenient for the use of straw curtains. The plastic sheet in the inner layer does not need to be too strong because of the small wind in the house. You can use iron pipes or bamboo baskets as scaffolds. If there is no moisture in the barn, there is no need for excessive ventilation.
Aisle white gray ash can absorb moisture, play a role in disinfection.
Inside the stove is a good way to solve the low temperature and humidity, the inadequacy is to increase the cost; and the installation of stoves inside the greenhouse will result in a decline in air quality, especially to prevent gas poisoning.
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