用蚕蛹代替鱼粉饲喂蛋鸡试验

本试验旨在研究蚕蛹的饲用价值.选用同日龄罗曼商品蛋鸡90只,每组45只,分为试Ⅰ组;豆粕-进口鱼粉型日粮(2%)和试Ⅱ组;豆粕-蚕蛹型日粮(2%).两组饲料价格相同.舍内自然通风.平均温度23℃,平均相对湿度66%,日喂3次,自由采食与饮水,每日分别记录各组的采食量、产蛋量、蛋重.结果表明,鱼蚕蛹组粉日粮组产蛋率(87.9%)和产蛋重(142.38kg)高于(P<0.01)蚕蛹组(分别为87%和139.06g);但蚕蛹组第只鸡每天多收入0.017 元(P<0.01).结论认为,以经济效益来衡量,蚕蛹优于鱼粉.

Experiment of feeding laying hens with silkworm chrysalis as a replacement for fish meal

An experiment was designed to study the feeding value of silkworm chrysalis. Ninety commercial Lohmann laying hens at the same age were randomly divided into two groups with 45 birds each. One group was fed a soybean meal - imported fish meal diet (2%) while the other group was fed a soybean meal -silkworm chrysalis diet (2%). The two diets had the same price. Laying hens were housed in a naturally ventilated room with an average temperature of 23 C and an average relative humidity of 66%. were fed thrice daily, and had access to feed and water for ad libitum consumption. Feed intake, egg production, egg mass and egg weight for each group were recorded daily. It was shown that egg production (87. 9%) and egg mass (142. 38kg) for laying hens fed the soybean meal-imported fish meal diet were higher (P<0. 01) than for laying hens fed the soybean meal -silkworm chrysalis diet (87% and 139. 06kg, respectively), but each of the laying hens supplemented with silkworm chrysalis created 0. 017 more yuan daily (P<0. 01). It was concluded that silkworm chrysalis is superior to fish meal in economical terms.