兔颗粒饲料生产工艺：制粒温度水分控制与质量检测

Pellet feed is the main feed form in modern rabbit farming, offering advantages of balanced nutrition, reduced waste, prevention of selective feeding, and ease of storage and transport. Rabbit pellet diameter is generally 2.5-4 mm.

Pelleting temperature is a key parameter affecting pellet quality and nutrient retention. Rabbit feed pelleting temperature should be controlled at 70-80 degrees Celsius. Too low temperature results in loose, crumbly pellets; too high destroys vitamins and enzyme activity and may cause Maillard reactions reducing protein utilization. Low-temperature pelleting is recommended.

Conditioning moisture at 15-17% is optimal for pelleting. Conditioning time of 30-60 seconds allows materials to fully absorb steam heat and moisture. Cool immediately after pelleting to room temperature plus 3-5 degrees, with cooling time of 15-25 minutes. Post-cooling pellet moisture should drop to 12-13%.

Die compression ratio is the core parameter affecting pellet hardness. Rabbit feed recommends compression ratio of 1:5 to 1:7, with die hole diameter of 3-3.5 mm. New dies should be run with oily material for 2-3 hours before production. Regularly check die wear.

Pellet quality testing indicators: powder rate below 3%, hardness measured as pellet crushing force no less than 30 Newtons, water stability meaning pellets remain intact after 5 minutes of water immersion. Sample each batch for appearance, particle size, and nutritional indicators; establish quality traceability records.