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http://dx.doi.org/10.17137/Korrae.2013.21.1.85

The Effects of different food-wastes of household on the feeding rate and growth rate of Eisenia fetida(Annelida: Oligochaeta) population  

Park, Kwang-Il (Dept. of Life Science, Daejin Univ.)
Bae, Yoon-Hwan (Dept. of Life Science, Daejin Univ.)
Publication Information
Journal of the Korea Organic Resources Recycling Association / v.21, no.1, 2013 , pp. 85-93 More about this Journal
Abstract
The amount of salted food waste and non-salted food waste from household consisted of 4 family members was surveyed. And the feeding rate and growth rate of Eisenia fetida population upon the different food wastes such as vegetables, grains, fruits and salted food waste were investigated. Total amount of food waste from a household was 3,200g/week. i.e. 0.114kg/day/capita and non-salted food waste was 53.9% of food waste. Salt contents of vegetables, grains, fruits were 0.60, 0.36 and 0.33%, respectively, if they were assumed to have 70% water content. Salt content of salted food waste was 0.78%. Upon the non-salted vegetables and fruits, feeding rate of earthworm was high but growth rate was low. Upon the non-salted grains, feeding rate of earthworm was low but growth rate was high. Upon the food with 70% water content, earthworm could not feed and grow when salt content of food was over 0.6%, and earthworm could feed normally but showed low growth rate when salt content of food was 0.3%. These results indicated that earthworm could stabilize the non-salted food wastes with ease but could hardly stabilize the salted food wastes.
Keywords
earthworm; food waste; resource recycling; vermicomposting;
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