Korean Journal of Poultry Science (한국가금학회지)

The Korean Society of Poultry Science (한국가금학회)
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Effects of Dietary Silicate Based Complex Mineral on Performance, Meat Quality and Immunological Competence in Broiler

규산염 복합광물질의 급여가 육계의 생산능력, 계육품질 및 면역능력에 미치는 영향

  • Lim, Chun Ik (Department of Animal Science, Chonbuk National University) ;
  • Park, Jin Ern (Department of Animal Science, Chonbuk National University) ;
  • Kim, Sang Eun (Davistone, Co., Ltd.) ;
  • Choe, Ho Sung (Department of Animal Biotechnology, Chonbuk National University) ;
  • Ryu, Kyeong Seon (Department of Animal Science, Chonbuk National University)
  • 임천익 (전북대학교 동물자원과학과) ;
  • 박진언 (전북대학교 동물자원과학과) ;
  • 김상은 ((주)다비스톤) ;
  • 최호성 (전북대학교 동물생명공학과) ;
  • 류경선 (전북대학교 동물자원과학과)
  • Received : 2017.10.18
  • Accepted : 2017.12.18
  • Published : 2017.12.31
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Abstract

This study was conducted to investigate the effect of dietary silicate based complex mineral (SCM) on the performance of broiler chicks. Four hundred fifty one day old Cobb ${\times}$ Cobb broiler chicks were fed with commercial diets at 0%, 0.05%, 0.10%, 0.15% and 0.20% SCM with five replicates for five weeks. Weight gain, feed intake and feed conversion were measured weekly, and blood composition, immunity and meat quality were evaluated at the end of experiment. During overall period weight gain in chicks fed diet containing 0.1% SCM was significantly increased as compared with that of control (p<0.05). Feed intake showed no consistency among the treatments. Feed conversion appeared to increase in the chickens fed with SCM addition diets during prestarter period. Albumin, glucose and other blood parameters related to chicken health tended to improve at the level of 0.05% SCM addition treatments. Drip loss in breast meat was significantly decreased in more than 0.05% SCM addition (p<0.05). The expression of IL-2 (Interleukin-2) in blood increased significantly in the chickens fed with SCM of 0.05% or 0.10% level than other treatments (p<0.05). The optimum SCM concentration for commercial dietary supplementation for improving broiler performance and other health-related parameters was 0.10%.

본 연구는 규산염 복합광물질의 수준별 급여가 육계의 생산성 및 면역능력에 미치는 영향을 구명하기 위하여 5주간 사양실험을 실행하였다. 처리구는 1일령 코브 450수에 시판용 육계용 사료를 기초사료로 하여 규산염 광물질을 0%, 0.05%, 0.10%, 0.15%, 0.20% 수준으로 첨가하였으며, 5개 처리구, 처리구당 6반복 반복당 15수씩 배치하였으며, 체중과 사료섭취량은 주간단위로 측정하였고, 실험 종료 시에 계육품질, 혈액 성상 및 계육의 지방산 함량, 면역능력에 미치는 영향을 조사하였다. 전체 사양시험 기간의 체중과 증체량은 0.10%의 첨가수준에서 대조구에 비하여 유의하게 높게 나타났다(p<0.05). 사료섭취량과 사료요구율은 처리구간에 차이가 없었지만, 사육초기 7일간 사료요구율은 복합광물질 처리구에서 개선되는 경향을 보였다. 혈중 알부민, 혈당 등, 건강과 관련되는 다른 인자들은 대조구에 비하여 규산염 첨가구에서 수준별로 반응하며 개선되는 경향을 보였다. 계육에서 육즙손실은 모든 광물질 급여구에서 대조구보다 매우 낮았다(p<0.05). 혈청 내 알부민 함량은 0.05% 첨가수준에서 증가하였으며(p<0.05), 글루코오스 함량은 0.05% 첨가 수준에서 가장 낮았다(p<0.05). 중성지방은 0.20% 첨가수준에서 현저히 증가되었으며, 0.05% 첨가수준에서 가장 낮았다(p<0.05). 가슴살에서 지방산 함량은 처리구간에 통계적 차이는 없었지만, 0.05%와 0.10% 첨가 급여구에서 불포화지방산이 증가하였고, 포화지방산이 감소하는 경향이 나타났다. 혈액 IL-2 유전자 발현은 0.05% 및 0.10% 첨가 급여구에서 다른 처리구보다 통계적으로 높게 나타났다(p<0.05). 본 실험 결과, 규산염 복합광물질의 0.10% 첨가 급여로 육계의 생산성은 개선되었으며, 계육에서 불포화지방산이 증가되었고, 혈액에서 건강과 관련된 인자들의 수준을 높게 하였으며, 면역 능력을 개선하였다.

Keywords

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