The environment and temperature and humidity of pig house are important factors affecting the production performance of sows. Appropriate environment and temperature and humidity can improve the productivity and health of the sow, while inappropriate environment and temperature and humidity can negatively affect the production performance of the sow. The explanation of the relevant situation by experts at the International Pig Congress can make farmers more deeply understand the impact of the pig house environment and temperature and humidity on the production performance of sows.

The harm of unfavorable environment in pig house to sow performance

1. The harm of harmful gases in pig house to sow production performance

The air quality in the pig house environment has an important impact on the growth and reproduction of sows, among which harmful gases harm the production performance of sows. Harmful gases in the pig house, such as ammonia, hydrogen sulfide, etc., will stimulate the respiratory system and eyes of sows, cause discomfort and disease of sows, reduce the respiratory system health and immunity of sows, and also affect the respiratory system health and immunity of sows.

2. The dirty and disorderly environment of the pig house is harmful to the production performance of sows

The dirty and disorderly environment of the pig house will harm the production performance of the sow, increase the breeding and transmission of pathogens, and increase the risk of infection of the sow, thus reducing the immunity of the sow. It affects the estrus, breeding and conception of sows, resulting in decreased reproductive performance of sows.

Effects of house environment and temperature and humidity on performance of sows

1. Effect of temperature on sow performance

The influence of temperature on sow production performance includes the following aspects: excessive temperature will affect the sow's appetite and digestive ability, resulting in a decrease in sow feed intake and insufficient nutrient intake, thus affecting the sow's growth and development and reproductive performance. Too low temperature will affect the body temperature regulation ability of the sow, resulting in a decrease in the body temperature of the sow, which will affect the growth and development of the sow and reproductive performance.

2. Effect of humidity on sow performance

High humidity environment will inhibit the body surface heat dissipation of sows, resulting in increased body temperature, which will affect the physiological function of sows. Effects on sow health, high humidity environment is easy to breed bacteria and viruses, increasing the risk of sow infection disease. At the same time, the high humidity environment will aggravate the symptoms of respiratory system and skin diseases of sows, and reduce the health level of sows. Effects on reproductive performance of sows, high humidity environment will affect the estrus, breeding and conception rate of sows, and reduce the reproductive performance of sows.

3. The effect of ventilation on sow performance

The effects of ventilation on sow production performance are mainly reflected in the following aspects. Ventilation can regulate the temperature and humidity in the pig house, so that the temperature and humidity in the pig house are suitable, which is conducive to the temperature regulation of sows. It can reduce the concentration of harmful gases and bacteria in the pig house, reduce the risk of infection of sows and improve the health level of sows.

Optimize the regulation strategy of breeding environment

1. Temperature control strategy

The optimum growth temperature for pigs is 15 ~ 25℃. Pigs at different growth stages have different environmental requirements. For empty sows, the optimum growth temperature is about 18℃. The optimum growth temperature for pregnant sows is about 15℃. The optimum growth temperature of postpartum lactating sows is about 18℃. The optimum temperature for newborn piglets is 32 ~ 35℃.

2. Control strategy of humidity

The control of humidity in pig houses is an important measure to ensure the health and comfort of pigs. It can reduce the humidity of the pig house through ventilation and increase the ventilation volume, which can discharge the humid air in the house and introduce dry air to reduce the humidity of the pig house. It can also regulate the humidity of the pig house through the management of the pig, reduce the drinking water and excretion of the pig, and reduce the evaporation of water in the pig house, thereby reducing the humidity.

3. Ventilation control strategy

Ensuring the ventilation of the pig house can promote the healthy growth of the sow, mainly according to the temperature, humidity and harmful gas concentration and other factors in the pig house, reasonable control of ventilation volume to ensure the air quality and temperature in the pig house. It is necessary to regularly monitor the environmental parameters such as temperature, humidity and harmful gas concentration in the pig house in order to adjust the ventilation strategy in time.

Conclusion

In order to improve the production performance of sows, it is necessary to maintain the hygiene and cleanliness of the pig house, regularly disinfect and clean up, and reduce the breeding and spread of pathogens. At the same time, it is also necessary to provide suitable temperature, humidity and light conditions to improve the production performance of sows and the survival rate of piglets.

If you would like to learn more about the pig industry, please visit the Leman China Swine Conference website for more information.

Source:SWINE INDUSTRY SCIENCE

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