Scientific insulation requirements for pigs at different growth stages

 

During the process of pig raising, pigs have different temperature requirements at different growth stages. Therefore, it is necessary to adjust the temperature and humidity of the pigsty reasonably according to the growth stage and climate conditions of the pigs to ensure their healthy growth.

1. Piglet Stage

Piglets have weak ability to adjust body temperature, so it is crucial to do a good job of scientific insulation. Wooden or plastic pig warming box can be used, with electric heating plates placed inside the box and a temperature set at 30-32 ℃. A 5-10cm thick cushion material such as crushed hay and straw can be added to the insulation box to keep warm, absorb moisture, and prevent pressure. The suitable environmental temperature for newborn piglets is 29-33 ℃, 26-29 ℃ for 1-2 weeks of age, and 23-26 ℃ for 3-4 weeks of age. The temperature in the pigsty can be maintained within the corresponding range through equipment such as air conditioning and warm air fans. If the humidity is too high, it is easy to cause piglet diarrhea, skin diseases, etc. If the humidity is too low, the air will be dry and stimulate the respiratory tract. The humidity of the pig house can be maintained at 65%~75% through ventilation, dehumidifier or spray.

2. Fattening pig stage

The fattening stage is a crucial phase in the growth and development of pigs, and it has specific temperature requirements. Generally speaking, for fattening pigs weighing between 30-60kg, an optimal temperature range is 18-22℃; for those weighing 60-90kg, 16-20℃ is more suitable; and for those weighing over 90kg until slaughter, the best temperature range is 14-18℃. Within this temperature range, the feed intake, feed conversion rate, and growth speed of the fattening pigs can be maintained at a good level.

3. Farrowing sows

Scientific heat preservation for farrowing sows is crucial for the health of both the sows and the fetuses. The optimal temperature during the early stage of pregnancy (1-30 days) is 18-21℃, during the middle stage of pregnancy (31-80 days) is 17-20℃, and during the late stage of pregnancy (81 days to delivery) is 18-22℃. The appropriate temperature is conducive to embryo implantation, development, and the overall health of the sows. Temperature control equipment such as air conditioners, heaters, and geothermal systems can be installed in the pigsties to automatically adjust the temperature according to needs.

4. Lactating sows

The optimal temperature during lactation is 20-22℃, which ensures sow comfort, promotes lactation, and benefits the growth and development of piglets. Insulation boards, rock wool, and other materials can be installed on the roof and walls of the pigsty to reduce heat loss. Bedding materials such as thick wooden boards, hay, and sawdust can be laid on the floor of the pigsty to provide insulation and warmth. Additionally, a door curtain can be hung at the entrance of the pigsty, and windows can be fitted with double-layer glass or plastic film to prevent wind from entering. Furthermore, air conditioning, heaters, geothermal systems, and other equipment can be installed in the pigsty to control the temperature.