在农村里牛粪资源十分丰富,实施牛粪生物工程,生产生物饲料养殖乌龟、鳖、鱼等,能有效降低养殖饲料成本。现将这一技术介绍如下:一、把新牛粪装进蝇蛆养殖池中,浇上少量动物血或屠宰下脚料,诱蝇产卵。4～5天后,蛆虫自动掉入装有捣碎的蚯蚓加清水的收蛆桶中(蚯蚓液中还要加0.1ppm 的高锰酸钾以消毒)。使蝇蛆具有蚯蚓气味, Cow dung resources in the countryside is very rich, the implementation of cow dung bio-engineering, production of biological feed breeding turtles, turtles, fish, etc., can effectively reduce the cost of farming feed. Now this technology is introduced as follows: First, the new manure into maggot breeding ponds, doused a small amount of animal blood or slaughter scraps, fly lure eggs. 4 to 5 days later, the maggots automatically fall into the maggot barrel with mashed earthworms plus water (earthworm fluid plus 0.1ppm of potassium permanganate to disinfect). So maggots have earthworm smell,