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Zimbabwe 2012

Không đóng trình duyệt đến khi xuất hiện nút TẢI XUỐNG Tải xuống

Poultry manure production occurs as a result of the normal everyday processes of the poultry industry. It is a valuable by-product of this industry and has valuable potential uses beyond the traditional one of fertilizer . It is always interesting to note that if one were looking 5 strictly at the fate of the nutrient inputs, the major product of any animal feeding system is manure, not animal protein . Often manures are considered waste materials and a place to 26 dispose of them has to be found. However, if the manure is considered a by-product of the industry, a possible use.