注射部位损伤，鸡
Necropsy image of a backyard chicken, showing a focus of muscle necrosis in the pectoralis major muscle.
Courtesy of Dr. A. J. Van Wettere.
在这些主题中
Necropsy image of a backyard chicken, showing a focus of muscle necrosis in the pectoralis major muscle.
Courtesy of Dr. A. J. Van Wettere.
