
新杨黑羽蛋鸡消化器官生长发育规律研究
李 红, 颜 瑶, 姚俊峰, 王晓亮, 蔡 霞, 严华祥
新杨黑羽蛋鸡消化器官生长发育规律研究
The growth and development patterns of Xinyang black-feathered laying hens’ digestive organs
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