Agriculture Reference
In-Depth Information
18
The Use of Earthworms in the
Breakdown of Organic Wastes
to Produce Vermicomposts
and Animal Feed Protein
Clive A. Edwards and Norman Q. Arancon
Soil Ecology Laboratory, The Ohio State University, Columbus, OH, U.S.A.
CONTENTS
Introduction ....................................................................................................................................346
Breakdown of Sewage Wastes by Earthworms .............................................................................347
Breakdown of Animal, Vegetable, and Urban Industrial Organic Wastes by Earthworms ..........349
Species of Earthworms Suitable for Processing Organic Wastes .................................................351
Biology and Ecology of Suitable Earthworm Species...........................................................351
Food and Environmental Requirements of Different Earthworm Species that
Process Organic Wastes ......................................................................................................353
Eisenia fetida
(Savigny) and
Eisenia andrei
, Bouch..................................................354
Eudrilus eugeniae
(Kinberg).........................................................................................354
Perionyx excavatus
(Perrier) .........................................................................................355
Dendrobaena veneta
(Rosa)..........................................................................................355
Polypheretima elongata
(Erseus) ..................................................................................355
(Hoffmeister) ................................................................................355
Vermicomposts as Plant Growth Media and Soil Amendments ...................................................355
Characteristics of Vermicomposts Produced by Earthworms from Organic Wastes.............355
Growth of Plants in Vermicomposts.......................................................................................357
Effects of Vermicomposts on Plants: The Incidence of Plant Pathogens, Plant-Parasitic
Nematodes, and Arthropod Pests ..............................................................................................362
Plant Diseases .........................................................................................................................362
Insect Pests..............................................................................................................................363
Plant-Parasitic Nematodes ......................................................................................................36 4
Earthworms as a Source of Protein for Animal Feed ...................................................................365
Nutrient Value of Earthworms as Animal Feed .....................................................................365
Production of Earthworms for Animal Feed in Animal, Vegetable, and
Industrial Wastes .................................................................................................................365
Practical Production of Earthworm Feed Protein for Animals..............................................366
The Value of Worm Protein as Feed for Fish, Poultry, and Pigs ..........................................366
Fish Feeding Trials........................................................................................................367
Chicken Feeding Trials .................................................................................................367
Pig Feeding Trials .........................................................................................................367
Lumbricus rubellus
345
 
 
 
 
 
 
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