Korean Journal of Poultry Science (한국가금학회지)

The Korean Society of Poultry Science (한국가금학회)
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Effect of Spraying Chamaecyparis obtusa Essential Oil on the Elimination of Red Mite (Dermanyssus gallinae) in Laying Hens

산란계에 편백나무 정유 살포가 닭진드기에 미치는 영향

  • 임천익 (전북대학교 동물자원과학과) ;
  • 박승규 ((주)칼텍바이오) ;
  • 최호성 (전북대학교 동물생명공학과) ;
  • 류경선 (전북대학교 동물자원과학과)
  • Received : 2018.07.17
  • Accepted : 2018.08.28
  • Published : 2018.09.30
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Abstract

The purpose of this study was to evaluate the influence and safety of spraying Farm Clean-S (FC-S) containing 70% Chamaecyparis obtusa essential oil on the elimination of red mite in laying hens. In total, 300 laying hens (ISA brown) aged 72 weeks and infected with red mite were assigned to individual cages for five treatments with five replicates for 18 days. Treatments consisted of distilled water (negative control; NC), commercial spray product (positive control; PC), FC-S 0 (original concentration), FC-S 50 (50 times diluted) and FC-S 100 (100 times diluted). The number of red mites, egg production and weight of each group were evaluated daily throughout the whole experimental period. Egg quality and blood biochemical parameters were measured at the end of the experiment. Safety tests were confirmed by feed intake, respiration, lethargy, diarrhea and mortality symptoms after the feeding trial. As the result, more than 80% of red mites were eliminated by the FC-S 0 spray treatment, and FC-S 50 also showed a higher elimination percentage than did PC (P<0.01). However, the elimination effect of the FC-S 100 spray was lower than that of the PC, but higher than that of the NC (P<0.01). These results confirmed that the optimum FC-S dilution rate ranged from 0~50 times with distilled water to eliminate the red mite effectively. The performance, egg quality, blood parameter and safety tests were not significantly different among treatments. Thus, FC-S 0 and FC-S 50 spray treatments can effectively and sustainably control red mite infestations without detrimental effects on the performance, egg quality and plasma biochemical properties of laying hens.

본 연구는 편백나무 정유를 70% 함유한 FC-S 살포액을 배율별로 희석하여 살포시에 닭진드기 제거와 안전성에 미치는 영향을 구명하고자 실행하였다. 닭진드기에 감염된 산란계 300수를 5개 처리구와 5반복 반복당 12수씩 18일간 배치하였다. 각 처리구의 살포액은 FC-S를 0배(원액, FC-S 0), 50배(FC-S 50) 및 100배(FC-S 100)로 희석한 시료와 증류수(NC) 및 시중에서 판매되는 천연살충제(PC)를 이용하였다. 닭진드기 숫자, 산란율, 난중은 매일 확인하였고, 계란품질과 혈액성상은 사양실험 종료 후 측정하였다. 안전성 검사를 위하여 산란계의 사료섭취, 호흡기증상, 침울, 설사 및 폐사 증상을 확인하였다. 본 연구결과, FC-S 0을 살포시에 80% 이상의 닭진드기가 제거되었으며(P<0.01), FC-S 50 처리구도 PC 처리구보다 개선되었다. FC-S 100 처리구는 PC 처리구보다 진드기 제거에 미치는 영향이 적었지만, NC 처리구에 비하여 닭진드기 제거는 매우 개선되었다(P<0.01). FC-S를 살포한 후 산란계의 생산성, 계란품질, 혈액성상 및 안전성에 미치는 영향은 처리구간에 유사하였으며, 통계적 차이가 없었다. 본 연구결과, FC-S의 살포는 산란계에 미치는 영향은 없었으므로, 닭진드기에만 선택적으로 작용하였다고 사료되며, FC-S 0~50배 희석배율의 살포는 상용화되어 판매되는 살포액보다 효과적으로 닭진드기를 제거하였다.

Keywords

References

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