Journal of Life Science (생명과학회지)

Korean Society of Life Science (한국생명과학회)
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Growth Performance and Nutrient Composition in the White-spotted Flower Chafer, Protaetia brevitarsis (Coleoptera: Scarabaeidae) Fed Agricultural By-product, Soybean Curd Cake

비지박 첨가 먹이원 급여에 따른 흰점박이꽃무지 유충의 생육과 영양성분 변화

  • Song, Myung-Ha (Industrial Insect Division, National Institute of Agricultural Sciences, Rural Development Association) ;
  • Han, Moon-Hee (Industrial Insect Division, National Institute of Agricultural Sciences, Rural Development Association) ;
  • Lee, Seokhyun (Industrial Insect Division, National Institute of Agricultural Sciences, Rural Development Association) ;
  • Kim, Eun-Sun (Industrial Insect Division, National Institute of Agricultural Sciences, Rural Development Association) ;
  • Park, Kwan-Ho (Industrial Insect Division, National Institute of Agricultural Sciences, Rural Development Association) ;
  • Kim, Won-Tae (Industrial Insect Division, National Institute of Agricultural Sciences, Rural Development Association) ;
  • Choi, Ji-Young (Industrial Insect Division, National Institute of Agricultural Sciences, Rural Development Association)
  • 송명하 (농촌진흥청 국립농업과학원 곤충산업과) ;
  • 한문희 (농촌진흥청 국립농업과학원 곤충산업과) ;
  • 이석현 (농촌진흥청 국립농업과학원 곤충산업과) ;
  • 김은선 (농촌진흥청 국립농업과학원 곤충산업과) ;
  • 박관호 (농촌진흥청 국립농업과학원 곤충산업과) ;
  • 김원태 (농촌진흥청 국립농업과학원 곤충산업과) ;
  • 최지영 (농촌진흥청 국립농업과학원 곤충산업과)
  • Received : 2017.09.15
  • Accepted : 2017.10.12
  • Published : 2017.10.30
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Abstract

Insects are gaining recognition as an alternative source of protein. As a result, more and more domestic farms have begun mass rearing of edible insects. In order to produce high quality insects, studies on the development of safe and nutritious feed sources are needed. Given the cost of rearing insects, agricultural and industrial by-products are good sources for feed. The efficient utilization of these by-products can help in reducing the cost of production and preventing environmental pollution. In the current study, Citrus unshiu peel (CP), soybean curd cake (SCC), soybean oil meal (SOM), and brewers dried grain (BDG) were investigated for their effects on larval growth and development of Protaetia brevitarsis. Interestingly, the feed with 10% SCC increased larval weight by 3.5 times. For the larval period, the group of 10% SCC was significantly shorter than the control. Furthermore, minerals such as Zn, Ca, K, Mg, Na, and P were recorded to be high in 10% SCC. A total of 17 amino acids were present in 10% SCC, of which tyrosine and arginine were predominant. The heavy metal contents were very small amounts or not detected in any of the investigated groups. These findings provided a scientific basis for the utilization of soybean curd cake as a nutritional feed source to promote larval growth and produce quality insects.

세계적으로 곤충시장이 매년 성장하는 가운데 우리나라에서도 곤충산업이 미래 유망 산업으로 주목 받고 있다. 뿐만 아니라, 최근 갈색거저리와 쌍별귀뚜라미, 흰점박이꽃무지 및 장수풍뎅이가 일반식품원료로 등록됨에 따라 식용곤충에 대한 관심이 늘고 곤충의 대량사육이 전국적으로 이루어지고 있다. 이에 안전하고 고영양성분이 포함된 식용곤충 전용 먹이원 개발 연구가 필요하다. 최근 들어 각종 부존자원의 사료화는 부존자원의 활용, 사료비 절감, 환경보존 등의 효과를 거두고 있는 것으로 나타나고 있다. 따라서 식용곤충으로 많이 사육되고 있는 흰점박이꽃무지의 생육을 촉진하면서 경제적이고 안정적인 사육을 도모하기 위해 감귤박, 비지박, 대두박, 맥주박 등 4종의 부존자원을 이용하여 효과를 조사하였다. 10% 비지박을 급여한 유충의 무게가 대조구 대비 약 3.5배 증가하였고, 유충기간 또한 40% 이상 단축되었다. 또한, 10% 비지박 첨가 실험구에서 일반조성분과 미네랄 및 아미노산의 함량이 전체적으로 높은 것으로 나타났다. 중금속 함량 분석 결과, 납과 카드뮴 및 비소는 모든 실험구에서 검출되지 않았다. 본 연구결과는 흰점박이꽃무지 유충의 생육 촉진 효과를 가지는 비지박이 곤충 먹이원의 소재로 활용될 수 있음을 보여준다.

Keywords

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