The experiment was conducted to measure the function and growth of preen gland of meat duck and to find the effects of dry-feeding system on preen gland development.

• 本研究目的是了解肉鸭尾脂腺的功能、尾脂腺生长发育规律，以及旱养方式对尾脂腺和肉鸭梳羽行为的影响。