Quantity and Quality of Industrial Chicken Manure before and after Compostin
Bùi Hữu Đoàn
Abstract
A study was conducted to determine the quantity and composition of industrial chicken manure before and after composting. Results showed that the amount of manure excreted by a laying hen and a broiler was 1.09 times and 1.13 times of the amount of feed intake. The total manure per year was 43.57 kg from a laying hen and 37.72 kg from a broiler. The total amount of manure produced from the industrial chicken farms in the Red River Delta was about 253,299 tons per year. The crude protein content in fresh manure and treated manure was 16.05 - 16.55 and 14.03 - 15.25%, respectively, on a dry matter basis. After composting, the color, smell of the manure was much improved. Cost of 100 kg of the processed manure was around VND 51,700