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一、变害为利内蒙古自治区和林县农机局农工商联合企业养殖场,为解决缺蛋白质饲料问题,去年从外地引进家蝇试养,并观察和统计了蝇蛆喂鸡的效果。产蛋鸡每只每日喂20克鲜蛆,30天内产蛋率提高24%;5日龄雏鸡在10天内喂少量鲜蛆,小鸡平均每日增重1克。据资料分析,干蝇蛆含粗蛋白59—63%,超过秘鲁鱼粉粗蛋白含量,还含有畜禽所需的多种氨基酸和相当数量的钙磷成分。河北省蓟县科委用蝇蛆取代鱼粉喂鸡的实验表明,蛋鸡每天吃15～20克鲜蛆,
First, the change is Inner Mongolia Autonomous Region and Lin County Agricultural Machinery Industrial and Commercial Joint Venture farm, in order to solve the problem of lack of protein feed, introduced from the field last year, domesticated test flies, and observed and maggot maggot feeding effect. Laying hens fed 20 grams of fresh maggots daily, 30 days increased the rate of egg production 24 hours; 5-day-old chicks fed a small amount of fresh maggots within 10 days, the average daily gain of 1 g of chickens. According to data analysis, dried maggots containing crude protein 59-63%, more than the Peruvian fish meal crude protein content, but also contains a variety of amino acids required for livestock and poultry and a considerable amount of calcium and phosphorus components. Jixian County, Hebei Province, using maggots to replace the fish meal feeding experiments show that laying hens eat 15 to 20 grams of fresh maggots,