鸡粪饲料喂猪喂鱼试验

EXPERIMENTS OF FEEDING PIGS AND FISHES ON CHICKEN MANURE FEED

由于鸡的消化道比较短，饲料在其体内停留的时间也很短，因此，日粮中２０％～３０％的营养未经消化吸收即被随粪排出。在高度集约化的饲养条件下，利用这些粪便中的蛋白质，无疑将会有较大的经济效益，因此，也减少了部分鸡粪对环境的污染。本试验用膨化后的鸡粪饲料喂猪，每增一千克肉试验组比对照组节约精饲料４．８８％，平均每头上市猪的毛利，试验组比对照组增收３６．７％。用膨化后的鸡粪喂鱼，２．４７ｈｍ２鱼塘平均每公顷净产鱼９６６１．５ｋｇ，每增重一千克鱼需耗鸡粪饲料２．８ｋｇ左右，每公顷净利比对照多收６０００多元人民币。

The chicken digestive tract is so short and the stay of feed within the chicken body is so transient that the 20～30 percent of nutrients in the diet are out of digestion and absorption and then are discharged with manure. Under highly intensive feeding conditions,it is no doubt that reutilization of the proteins contained in the manure can cause very high economic benefit,at the same time it can reduce partly the environment pollution by chicken manure. Pigs were fed on pellet expanding chicken manure feed in our feeding experiments with chicken manure feed. The concentrated feed consumption for producing 1 kg pig meat was 4. 88% less in the chicken manure feed group than in the control group and the average gross profit per marketable pig was 36.7% more in the former group than in the latter group.When fishes were fed on expanding chicken manure feed,the average yield per hm2 in 2. 47 hm2 fish-ponds was 9 661.5kg. The consumption of chicken manure feed for a gain of 1 kg fish meat was about 2.8kg and the net profit per hm2 increased by more than 6 000 yuan as compared with the control.