Night crawlers do they have any nutritional value to fish. They better/worse/same as feeder fish??
Night crawlers Nutritional Value
- Thread starter GrossGraphix
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I believe they are alot better then feeder fish, but I can't tell you why. I know they are kinda high in fat, but still good for the fish. I feed them to my rays to fatten my rays up. Theres a whole thread explaining the worms, let me take a minute to search and find it.
Title: Nutritive value of earthworms.
Personal Authors: Sun ZhenJun
Author Affiliation: College of Resources and Environmental Sciences, China Agricultural University, 100 094 Beijing, China.
Editors: Paoletti, M. G.
Document Title: Ecological implications of minilivestock: potential of insects, rodents, frogs and snails
Abstract:
The chemical compositions of the earthworm Eisenia fetida, its casts and body fluids were investigated and compared with those of a variety of common foods and animal feeds. Nutrient analyses showed that Eisenia fetida meal has a high protein content in the range of 54.6 to 71.0% dry matter. The protein content and amino acid composition were close to those of fish meal and eggs, and higher than cow milk powder and soyabean meal. Casts of E. fetida had a protein content of 7.9% dry matter, similar to that of maize meal, and hence earthworm casts could be used not only as an excellent organic fertilizer, but also for partial replacement of maize meal or wheat bran in animal diets. Earthworm body fluids contained 9.4% protein and 78.79 free amino acids per litre and were rich in vitamins and minerals, in particular iron (Fe). Our nutrient analyses suggest that the earthworm (Eisenia fetida) could be an excellent protein supplement for animal feed and human food.
Publisher: Science Publishers, Inc.
Personal Authors: Sun ZhenJun
Author Affiliation: College of Resources and Environmental Sciences, China Agricultural University, 100 094 Beijing, China.
Editors: Paoletti, M. G.
Document Title: Ecological implications of minilivestock: potential of insects, rodents, frogs and snails
Abstract:
The chemical compositions of the earthworm Eisenia fetida, its casts and body fluids were investigated and compared with those of a variety of common foods and animal feeds. Nutrient analyses showed that Eisenia fetida meal has a high protein content in the range of 54.6 to 71.0% dry matter. The protein content and amino acid composition were close to those of fish meal and eggs, and higher than cow milk powder and soyabean meal. Casts of E. fetida had a protein content of 7.9% dry matter, similar to that of maize meal, and hence earthworm casts could be used not only as an excellent organic fertilizer, but also for partial replacement of maize meal or wheat bran in animal diets. Earthworm body fluids contained 9.4% protein and 78.79 free amino acids per litre and were rich in vitamins and minerals, in particular iron (Fe). Our nutrient analyses suggest that the earthworm (Eisenia fetida) could be an excellent protein supplement for animal feed and human food.
Publisher: Science Publishers, Inc.
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When I had my two albino oscars I fed them earthworms from my backyard almost exclusively.They loved them and the price was right.