Chuyên mục: Gia cầm, Thú y, Tư vấn kỹ thuật
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[:en] The egg drop syndrome – 1976 (EDS 76) is an infectious disease in layer hens manifested by a quick drop in egg production, failure to reach peak production, irregularly shaped eggs, soft-shelled or shell-less eggs and depigmentation. The aetiological … Đọc thêm