cau 1 ; trinh bay dac diem chug cua DVCXS. Cho biet cach phog chog 1 so benh lay lan qua vat nuoi tai gia dinh'' benh dai, benh do chay gian ki sinh va benh cum da cam'' cau 2 ; tim hieu ve gia tri cua DVCXS doi voi moi truong ; * ke ten it nhat 5 loai dog vat co thit dug lam thuc an * ke ten it nhat 5 loai gia suc an co ma em biet * bien phap bao ve phat trien vat nuoi co xuong song pho bien trog doi sog