蚯蚓含有丰富的营养成份，其蛋白质含量与秘鲁鱼粉相当，是玉米蛋白含量的6倍，是一种很有潜力的高蛋白饲料。在以前的研究基础上，我们发现蚯蚓体内有10多种蛋白水解酶，创造适宜的条件，使这些蛋白酶保持较高的催化活性，可以使蚯蚓体内的蛋白质水解成具有生物活性的活性肽，这些活性肽可被动物完整地吸收，通过调节神经系统-内分泌系统-免疫系统，对动物的生长起到直接促进作用。我们通过对加工工艺的筛选，获得了最佳水解工艺，根据蚯蚓液的理化特性和营养价值，并参照仔猪、鱼种的营养需要，研制出了具有营养强化、抗病保障和诱食作用的仔猪、鱼用复合蚯蚓营养保健液，通过在猪和鱼上应用，取得了明显的经济效益。
　　Earthworm as a Potential Protein Resource The chemical composition of earthworm,wormcasts and worm body fluids was investigated and compared with common foods and animal feeds.common nutrient analysis showed that Eisenia foetida meal has a high protein content in the range of 54.6 to 71.0% dry matter .Protein content and animo acid composition were close to that of fish meal and hen egg, and higher than that of raw cow milk powder and soybean. Casts of E.foetida had a protein content of 7.9% dry matter,which is similar to that of corn meal,and hence worm casts could be used for partial replacement of corn meal or wheat bran in animal diets.Worm body fluids contained 9.4% protein and 78.79 free amino acid per litre and were found tobe rich in vitamins and minerals,Particularly iron(Fe). Our nutrient analyses suggest that earthworm could be an excellent source of protein to supplement animal feed and human food.
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