Effect of spraying different levels of biodigester effluent on cow and buffalo manure used as substrate for growth of earth worms

Keo Sath

Center for Livestock and Agriculture Development
(CelAgrid-UTA Cambodia)
keosth@yahoo.com

Introduction

Earth worms are used by a variety people and activities. Specifically, earth worm production is sold directly to anglers, home gardeners, for animal feeds, organic agricultural producers, and for fishing bait. Earthworm production is one of the many low cost activities that  farmers can start to cope with potential risk. The role of earthworms in improving soil fertility has long been appreciated by farmers but until the last two decades there had been no major attempt to cultivate them as a component in an organic recycling system. The potential value of the earthworm as a source of feed protein for poultry is often emphasized as justification for growing them, but their major role is in the recycling of animal excreta for the production of a high quality organic fertiliz