The problems existing in pig raising in greenhouses and their solutions

The use of greenhouses in the winter can increase the temperature of the house. Even in the cold “39” days, the daytime temperature in the shed can reach 18-20°C, and at night above 0°C, it can reduce the pig’s energy loss and speed up pig weight gain. So that pigs can also grow long meat as usual in the cold season. However, there are several outstanding problems in the pig production process in greenhouses, which must be seriously addressed.

Keep warm

Although greenhouses can keep warm, they have poor insulation properties. Because of the low winter temperature, short sunshine, large temperature difference between the inside and outside of the shed, the plastic film is prone to condensation, and the insulation is not lasting.

Measures to be taken: (1) The quilts or straw curtains shall be hung on the door of the night house to prevent the thieves from intruding. (2) used plastic film, should pay attention to check whether there are loopholes, to make up for the defective part, usually pay attention to protect the plastic film. (3) At night, a layer of straw is placed on the ceiling plastic film to enhance the insulation performance. (4) Conditional coverable double plastic film can significantly improve the heat preservation effect. (5) Scientific management. The pigs develop the habit of defecate urine regularly to prevent pigs from freezing in the urine fossa. (6) Implement high-density feeding, raise more than one pig per house, and make full use of the heat generated by the pig itself. (7) Placing grass on the floor of the pig house.

Moisture-proof

Pigs live in sealed greenhouses. They eat and live in the shed, defecate, and spill water from the sink. It is difficult for water to evaporate, and moisture in the shed affects the temperature. When the weather is cold, the more humidity in the shed, the colder the pig feels.

Solutions: (1) Ventilate daily according to the weather conditions. Generally, open the sunroof and vent hole when the temperature is high from 10am to 2pm, and ventilate for 0.5 to 1 hour each time. Ventilation is slightly longer when the weather is fine, and ventilation can be shorter on cloudy days. (2) Conditionally installable air conditioners and blowers regulate humidity. (3) Changing the bedding easily will help eliminate moisture and make the floor not wet. Ash can be placed in the piggery and dry soil absorbs moisture. (4) Wipe the water droplets on the film with a cloth that absorbs water in a timely manner. Or catch the water droplets with a bucket and pour them at any time to reduce the humidity in the shelter. (5) The concrete floor should have a certain slope, which will enable the excrement to flow smoothly to the urine pit and be removed in time.

Excluding harmful gases

Pigs live in greenhouses to breathe, excrement and urine, as well as feed, bedding to produce ammonia, hydrogen sulfide and carbon dioxide and other harmful gases, these harmful gases are too high, easily lead to pig poisoning and disease.

Remedy: (1) Open the sunroof and ventilation holes on time every day to release harmful gases and exchange fresh air. (2) Pig manure is the most important source of harmful gases. It must be removed once a day in the morning, at noon, and in the afternoon, combined with cleanliness in the shed to keep the floor clean and dry. (3) To strengthen the management of foodstuffs, the pig's troughs, mix troughs, and sinks should be washed regularly with boiling water and brushed clean. Do not leave the material for each meal, to prevent the remaining material septic and produce harmful gases. At the same time, the utensils and tools are strictly separated and used, and regular and irregular disinfection of the utensils, tools, and the environment are also performed to eliminate the rancid odor of metabolites, ensure ventilation and fresh air, and improve the disease resistance of pigs. Live pig production.

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