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Xem thêm: Identifying the hybrid combination between landrace, yorkshire, pietrain boars with mong cai sows, the weaning age and the proper diet to produce suckling pigs in rural households of thai binh, Identifying the hybrid combination between landrace, yorkshire, pietrain boars with mong cai sows, the weaning age and the proper diet to produce suckling pigs in rural households of thai binh