Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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A Case Study on the Degradability of Poultry Manure by Various Insect Larvae (1)

다양한 곤충에 의한 계분의 분해능력에 대한 연구(1)

  • Joung-Yeun, Kim (Department of Companion Animal Science, Calvin University) ;
  • In-Hag, Choi (Division of Companion Animal Science, Joongbu University)
  • 김정연 (칼빈대학교 반려동물학과) ;
  • 최인학 (중부대학교 반려동물학부)
  • Received : 2022.10.04
  • Accepted : 2022.11.08
  • Published : 2022.11.30
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Abstract

This study was conducted to investigate the efficacy of larval stages of three species, namely, Tenebrio molitor, Protaetia brevitarsis seulensis, and Ptecticus tenebrifer larvae, in degrading poultry manure, specially, broiler and duck manure. The survival rates of larvae were also noted. For the experiment, T. molitor (n=300), P. brevitarsis seulensis (n=60), and P. tenebrifer (n=300) hatched larvae were randomly divided into six groups with three replicates. The degaradation efficacy tests were then performed for 30 days in a laboratory. The test groups were as follows: T1, 110 g broiler manure + T. molitor larvae (n=50); T2, 110 g duck manure + T. molitor larvae (n=50); T3, 125 g broiler manure + P. brevitarsis seulensis larvae (n=10); T4, 125 g duck manure + P. brevitarsis seulensis larvae (n=10); T5, 105 g broiler manure + P. tenebrifer larvae (n=50); and T6, 105 g duck manure + P. tenebrifer larvae (n=50). The groups showed significant efficacy in degrading broiler and duck manure (p<0.05). The highest survival rates were recorded for T. molitor larvae in both manure types [T1 (92.67%) and T2 (50%)], followed by P. brevitarsis seulensis larvae (T4, 40%) and P. tenebrifer larvae (T6, 14.67%) in duck manure. Next, the survival rates of P. brevitarsis seulensis (T3) and Ptecticus tenebrifer larvae (T5) in broiler manure were 0%. In conclusion, these results point to the feasibility of using insect larvae to degrade broiler and duck manure.

Keywords

Acknowledgement

본 연구는 경상북도 교육청 "2020년 제16회 미래과학자양성프로그램 운영 계획" 연구사업의 지원에 이루어진 것입니다.

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