Journal of Bio-Environment Control (생물환경조절학회지)

The Korean Society for Bio-Environment Control (한국생물환경조절학회)
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Effect of Population Density on Development Time of Tenebrio molitor

Tenebrio molitor의 개체수 밀도가 발달 시간에 대한 영향

  • Da Yeon Choi (Department of Horticulture, Kongju National University) ;
  • Ji Yun Yun (Department of Horticulture, Kongju National University) ;
  • Seo Yun Kim (Department of Horticulture, Kongju National University) ;
  • Ga Eun Lee (Department of Horticulture, Kongju National University) ;
  • Kyra Batarse (Department of Mathematics and Statistics, California State University) ;
  • Steven Kim (Department of Mathematics and Statistics, California State University) ;
  • Dong Sub Kim (Department of Horticulture, Kongju National University)
  • 최다연 (공주대학교 산업과학대학 원예학과 ) ;
  • 윤지윤 (공주대학교 산업과학대학 원예학과 ) ;
  • 김서윤 (공주대학교 산업과학대학 원예학과 ) ;
  • 이가은 (공주대학교 산업과학대학 원예학과 ) ;
  • 키라 바타르세 (캘리포니아 주립대학교 몬트레이베이 수학통계학과 ) ;
  • 스티븐 김 (캘리포니아 주립대학교 몬트레이베이 수학통계학과 ) ;
  • 김동섭 (공주대학교 산업과학대학 원예학과 )
  • Received : 2024.04.20
  • Accepted : 2024.05.16
  • Published : 2024.07.31
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Abstract

Mealworms are used as food, so it is preferable if the larval stage lasts longer. On the other hand, to accelerate the population growth of mealworms, it is preferable if the larvae become adults quickly. The purpose of this study is to explore the effects of population density on development time of mealworms. We used a container size of 7 cm at the top, 5 cm at the bottom, and 3 cm in height. Mealworms lived in the containers at densities of 1, 2, 5, 10, and 20 per container. The containers were bedded with 1 g of wheat bran and formed two groups, fed and not fed, at each density levels. The experiments were performed three times. In all of the experiments, higher population densities resulted in shorter transformation times from larva to pupa, but the time from pupa to imago was not significantly different. In addition, given the same density, the presence of food accelerated the time to transformation to pupa, but not to imago. The data supported that a lower density is needed to prolong the larval stage, and if adults are needed at a faster rate, the density should be higher. Therefore, we conclude that the development time of mealworms can be controlled by the density which is useful information for mealworm farmers.

거저리는 식품으로 사용되기 때문에 유충기가 오래 지속되면 더 좋다. 반면에 거저리의 개체수 유지를 위해 성장을 가속화하기 위해서는 유충이 빨리 성충이 되면 더 좋다. 이 연구에서는 개체군 밀도가 거저리의 발달 시간에 미치는 영향을 구명하였다. 이를 위해 상단 7 cm, 하단 5 cm, 높이 3 cm 크기의 용기를 사용했다. 거저리는 용기당 1, 2, 5, 10, 20마리의 밀도로 용기에서 서식하였다. 용기에 밀기울 1 g을 넣고 거저리의 먹이 여부에 따라 라벨을 붙였다. 실험은 세 번 반복되었다. 모든 실험에서 개체군 밀도가 높을수록 유충에서 번데기로의 변환 시간이 짧았지만 번데기에서 성충으로 변환되는 시간은 크게 다르지 않았다. 또한 먹이가 있는 그룹에서 번데기로의 변환 시간이 단축되었지만, 성충으로 변환되는 시간에는 차이가 없었다. 이 연구 결과는 유충기를 연장하기 위해 더 낮은 밀도가 필요하고 더 빠른 속도로 성충이 필요하다면 밀도가 더 높아야 한다는 것을 보여주었다. 결론적으로 거저리의 발달 시간은 개체수 밀도에 의해 제어할 수 있을 것이다.

Keywords

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