Effect of Dietary Supplementation of Silicate Mineral $(Vita2000^{(R)})$ on Growth Performance and Intestinal Microflora in Broiler Chicks

사료 내 규산염 광물질$(Vita2000^{(R)})$ 첨가 급여가 육계 생산성과 장내 균총에 미치는 영향

  • Ahn S.M. (Animal Resources Research Center, College of Animal Husbandry, Konkuk University) ;
  • Shin S.C. (Animal Resources Research Center, College of Animal Husbandry, Konkuk University) ;
  • Park S.S. (Animal Resources Research Center, College of Animal Husbandry, Konkuk University) ;
  • You S.J. (Animal Resources Research Center, College of Animal Husbandry, Konkuk University) ;
  • Kim Y.R. (Animal Resources Research Center, College of Animal Husbandry, Konkuk University) ;
  • Kim E.J. (Animal Resources Research Center, College of Animal Husbandry, Konkuk University) ;
  • Ahn B.K. (Animal Resources Research Center, College of Animal Husbandry, Konkuk University) ;
  • Kang C.W. (Animal Resources Research Center, College of Animal Husbandry, Konkuk University)
  • 안승민 (건국대학교 축산대학 동물자원연구센터) ;
  • 신승철 (건국대학교 축산대학 동물자원연구센터) ;
  • 박상설 (건국대학교 축산대학 동물자원연구센터) ;
  • 유선종 (건국대학교 축산대학 동물자원연구센터) ;
  • 김용란 (건국대학교 축산대학 동물자원연구센터) ;
  • 김은집 (건국대학교 축산대학 동물자원연구센터) ;
  • 안병기 (건국대학교 축산대학 동물자원연구센터) ;
  • 강창원 (건국대학교 축산대학 동물자원연구센터)
  • Published : 2006.03.01

Abstract

This experiment was conducted to investigate the effects of dietary Vita2000 on growth performances and immune response in broiler chickens. One-day-old male chicks were fed diets containing 0, 0.5 and 1% Vita2000 (with or without antibiotics) for 5 wks. There were no significant differences in daily weight gain among the treatments, but feed intake in 1% Vita2000 groups (T3 and T4) were significantly lower than control (P<0.05). The relative abdominal fat weight and the level of crude fat in leg meat on groups fed diets containing 1% Vita2000 (T3 and T4) were significantly decreased as compared to those of control (P<0.05). The content of cholesterol in leg meat was not affect by dietary treatment. The intestinal total microbes, Coli form, Lactic acid bacteria and Salmonella spp. from bird fed 1% Vita2000 diets was significantly reduced compared to those of control. The production of IB antibody in chicks fed diet containing 0.5% Vita2000 was significantly higher than that of control groups. The overall results indicate that dietary Vita2000 may be a valuable alternative to antibiotics for optimizing growth performances, particularly for reducing the abdominal fat of broiler chicks.

본 연구는 육계사료 내 Vita2000의 첨가 급여가 육계리 생산성 및 면역 기능에 미치는 영향을 규명하기 위해 수행하였다. 1일령의 Ross 육용종 수평아리 216수를 공시하여 Vita 2000을 첨가하지 않은 항생제 무첨가 대조구(NC)와 항생제 첨가 대조구(PC), Vita2000을 사료 내 0.5% 및 1% 수준으로 첨가한 사료에 항생제를 첨가하거나 첨가하지 않은 실험사료를 각각 5주간 급여하였다. 사료 섭취량은 대조구에 비하여 1% Vita2000-항생제 무첨가구(T3)와 1% Vita2000-항생제 첨가구(T4)에서 유의하게 낮은 결과를 보였으나(P<0.05), 증체량과 사료 요구율은 처리간 큰 차이가 없었다. Vita2000 1% 첨가구(T3 및 T4)에서 복강지방의 상대적 중량과 다리근육 내 조지방 함량이 대조구에 비하여 유의하게 감소하는 결과가 관찰되었다(P<0.05). 근육 내 콜레스테롤 농도에서는 처리구간에 유의한 차이를 보이지 않았다. 대조구에 비해 1% Vita2000 첨가구에서 총 균, Coli form, Lactic acid bacteria 및 Salmonella spp. 모두 유의하게 감소하였다(P<0.01). IB 항체 생산량은 대조구에 비해 Vita2000 0.5% 첨가구(T1 및 T2)에서 유의하게 증가하였다(P<0.01). 본 실험의 결과로부터 사료 내 Vita2000의 첨가 급여가 항생제 처리구와 유사한 성장 개선 효과를 나타냄으로서 항생제를 대체할 첨가제로서의 이용 가능성이 제시하였고, 특히 복강 지방 감소와 같은 긍정적인 효과를 기대할 수 있을 것으로 사료되었다.

Keywords

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