Temperature and disinfection management of pig raising in winter

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1. How to adjust the temperature of raising pigs in winter? 

Temperature is extremely closely related to the growth and health of pigs. Therefore, in the feeding and management of pigs, paying attention to the management and adjustment of temperature, creating a suitable growth and development temperature for them is a necessary guarantee for promoting their rapid growth or fattening and obtaining higher economic benefits.

(1) Ambient temperature  

When the outside air temperature is too low, in order to maintain a normal body temperature, the pig's body must increase the oxidation and decomposition of substances in the body to generate heat energy to supplement the loss of body heat. Generally speaking, when the temperature around the piglet is 20℃~26℃, the metabolic consumption is low and the growth and development are normal. However, large pigs have lower metabolic consumption at 15°C to 20°C and normal fat gain. Therefore, we must pay attention to the cold-proof and heat preservation work of the pig house (such as covering the pig house with plastic film, etc.) and increase the temperature in the house. This will not only reduce the consumption of pig body metabolism, but also promote its growth and development and increase fat.

(2) Drinking water and food temperature 

The temperature of drinking water and food for pigs in winter is also closely related to the growth and health of pigs. A lactating sow needs about 17.5-22.5 kg of water and food per day. If the water and food temperature is 0℃, the water and food temperature must be raised to the level of 39℃, and the pig’s body will consume 682~878 thousand. The caloric energy of the calorie is equivalent to the need to consume 0.5-0.75 kg of concentrate every day to maintain body temperature, and cannot be used for lactation, growth, and fat gain. Therefore, when feeding pigs in winter, warm food and warm water should be fed frequently, which can reduce feed consumption and improve feeding efficiency.

2. Pay attention to ventilation and disinfection when raising pigs in winter  

The temperature in winter is low, and many pig farmers often only pay attention to the heat preservation of the pig house and neglect the ventilation in the house, which causes a large accumulation of pollutants in the air and causes disease in pigs. Therefore, ventilation and disinfection of pigs in winter cannot be ignored. Because the housing needs to be warmed in winter and kept in a relatively closed environment, the indoor carbon monoxide, carbon dioxide and inhalable particulate matter content will greatly increase. These harmful substances can cause irritation to the respiratory system of pigs and a decrease in immunity, increase the chance of suffering from respiratory diseases, and aggravate the symptoms of existing diseases that are difficult to cure.

In addition, the air in the barn is too dry in winter, and the chances of bacteria and viruses floating in the air being adsorbed to the body are greatly increased, which is likely to cause the proliferation of microorganisms and bacteria, which may lead to a variety of diseases in pigs. Timely ventilation and disinfection of the pen is very important.

(1) Timely ventilation  

When the temperature is relatively high at noon, open a small gap in the window for ventilation for 1 hour. According to investigations, virus and bacteria droplets in the air can float for more than 30 hours in a room with no air circulation. If the doors and windows are often opened for ventilation, the dirty air can drift away at any time, and the room also gets sufficient light, which makes it difficult for a variety of viruses and bacteria to breed and multiply.  

(2) Regular disinfection

Regular disinfection of the house can promote the healthy growth of pigs. Disinfection drugs should be used in rotation, and the dosage should be determined according to the instructions. Before disinfection, it must be thoroughly cleaned. When disinfecting, the ground should be like a drizzle. It should not be too wet (pigs are prone to diarrhea) or dry (not able to disinfect). Every corner must be disinfected in place. When disinfecting, let the sprayer on the top of the pig to slowly drop the liquid, and do not spray the liquid directly on the pig.  

(3) Prevent icing  

It is very difficult to disinfect outside the barn in winter, especially in the disinfection pool set up when entering the farm and pig barn, it may freeze in winter. In this case, you can sprinkle some salt in the disinfectant so that it will not freeze.  

In addition, we should also pay attention to frequently changing the disinfectant in the disinfection tank to prevent the expired medicine from reducing or invalidating the efficacy.  

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5.Pay attention to the anti-nutritional factors in the piglet feed

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