GB/T 17824.3-2026Technical specification for the environmental parameters and environmental management of intensive pig farms (English PDF)

4.2 Site Environmental Management Requirements

4.2.1 Warning signs should be set up at the boundaries of the site.

4.2.2 It is advisable to set up walls or fences to separate the functional areas.

4.2.3 The layout and functional zoning of the farm area should be carried out according to the breeding process and production management requirements, and the farm area layout shall comply with the provisions of GB/T 17824.1. Requirements. Isolation pig pens, necropsy rooms, facilities for handling dead pigs, and manure treatment areas should be located downwind or crosswind of the farm's prevailing wind direction throughout the year, and in harmony with... The distance between production areas should be no less than 50m. If the site conditions do not meet the requirements, additional isolation facilities should be added.

4.2.4 Personnel disinfection channels and vehicle disinfection channels should be set up at the entrances and exits connecting the site to the outside.

4.2.5 The farm area should be kept clean and hygienic. Safe, efficient, broad-spectrum, and environmentally friendly disinfectants should be used. Regular disinfection should be carried out at entrances, roads, pigsties, etc. Pigs, facilities, and equipment are cleaned and disinfected.

4.2.6 The dedicated loading and unloading platform for pigs leaving the farm should be located near the perimeter wall by the waste passage, with one end of the ramp inside the farm connecting to the pig transfer passage and the other end connecting to the outside. Connect to the transshipment platform.

4.2.7 Clean and sewage separation and rainwater and sewage separation shall be implemented on site, and sewage shall be discharged into the sewage treatment area through culverts or pipes.

4.2.8 Excrement, sewage, and production waste shall be treated to render them harmless. The utilization of excrement as fertilizer shall comply with the requirements of GB/T 36195. Wastewater discharge should meet the requirements stipulated in GB 18596; the disposal of dead pigs should refer to the "Technical Specifications for Harmless Treatment of Dead and Diseased Animals". Require.

4.2.9 Pig houses and feed warehouses should be equipped with bird and rodent prevention facilities, and dust suppression and deodorization devices should be installed at the fan end.

4.2.10 The air quality in the site area should be monitored regularly on a monthly or quarterly basis.

5.1 Environmental parameters of pigsty

5.1.1 The temperature and relative humidity of the air inside the pigsty should meet the requirements of Table 1 for suitable production temperature and relative humidity, and preferably meet the requirements of Shushu () when conditions permit. Suitable temperature and relative humidity.

5.1.2 The air quality indicators in pig houses shall meet the requirements specified in Table 2.

5.1.3 For pig houses with longitudinal ventilation, the ventilation volume should meet the requirements of Table 3.

5.1.4 The lighting parameters for pigsties should comply with the provisions of Table 4.

5.1.5 The production noise and external noise in all types of pig houses should not exceed 80dB.

5.2 Requirements for Pigsty Environmental Management

5.2.1 The building envelope of the pigsty should meet the requirements for thermal insulation, and the pigsty should be equipped with heating, cooling and ventilation equipment.

5.2.2 The temperature difference between day and night and sudden temperature changes in a short period of time should not exceed 5°C.

5.2.3 The temperature of the piglet lying area in the lactating sow's house should be controlled separately. Local heating can be implemented through heat preservation boxes, warm beds, heat lamps or heating plates. The ideal temperature for the lying area of piglets aged 1-2 days is 32°C-30°C. After 3 days, the temperature should be decreased by 0.3°C-0.5°C daily. For piglets aged 3-4 weeks... Maintain a temperature of 26°C~24°C.

5.2.4 When the relative humidity inside the building exceeds 80%, spraying and misting should be reduced.

5.2.5 The ventilation of pigsties should maintain a uniform airflow distribution.

5.2.6 In winter, the wind speed in sow pens and nursery piglet pens should not exceed

0.3 m/s, and in other pig pens it should not exceed

0.5 m/s.

5.2.7 In summer, the wind speed inside the pigsty should not be less than 2 m/s, and the wind speed around the pigs should not exceed 1 m/s.

5.2.8 Lighting equipment in pigsties should be evenly distributed, and LED lights or energy-saving lamps are recommended.

5.2.9 The environmental control facilities and equipment in pig houses should be cleaned and maintained regularly.

5.2.10 Environmental parameters inside the building can be regularly monitored by setting up testing instruments at designated locations as needed, and records should be generated.

5.2.11 If pigs develop respiratory diseases, experience a sharp decline in production performance, suffer sudden cold or heat stress, or experience a surge in harmful gases during manure cleaning, etc. In case of emergencies, temporary environmental monitoring should be conducted.