00905nam a2200205Ia 4500 CTU_16605 210402s9999 xx 000 0 und d 636 F218/N126 T R Preston FAO animal production and health paper N126 Tropical animal feeding: a manual for research workers T R Preston, FAO Rome FAO 1995 This manual has been completely rewritten and greatly extended. Its scope is no longer limited to crop residues and by-products, but considers also other feeds. Half of its contents is devoted to describing the essential principles which should assist the research worker in conducting useful and cost effective research. animal industry Nguyễn Quang Điền, 970530 Trung tâm Học liệu Trường Đại học Cần Thơ