Effect of Level and Feeding Period of Dietary Monascus Culture on Cholesterol Content of Serum and Meat of Broilers and Growing Ducks

Monascus 배양물의 첨가 급여 수준 및 기간이 육계와 육용오리의 혈청 및 고기의 콜레스테롤 함량에 미치는 영향

  • Kim S. I. (Department of Feed Science and Technology, Kangwon National University) ;
  • Lee W. J. (Department of Feed Science and Technology, Kangwon National University) ;
  • Lee K. H. (Department of Feed Science and Technology, Kangwon National University)
  • 김상인 (강원대학교 사료생산공학과) ;
  • 이우진 (강원대학교 사료생산공학과) ;
  • 이규호 (강원대학교 사료생산공학과)
  • Published : 2005.09.01

Abstract

Two experiments were carried out to investigate the effects of level and feeding period of dietary Monascus culture on the performance and cholesterol content of serum and meat in broilers and growing ducks.0.0(C), 0.5(T1), 1.0(T2) and $1.5\%(T3)$ of iwonascus culture which contained 0.5% monacolin-k was added to commercial broiler diets, respectively, and ffd during 2~6 weeks of age in Experiment 1. In Experilnent 2, commercial broiler diet added $1.0\%$ of Monascus culture was fed during $6\~6(C),\;4\~6(T1),\;2\~6(T2)\;and\;0\~6(T3)$ weeks of age, respectively. Three replicates of 16 day-old broilers and 10 day-old growing ducks each were randomly assigned to floor pen, respectively. In Experiment 1, as the level of dietary Monascus culture increased, body weight and feed intake of broilers significantly decreased (P<0.05), whereas those of growing ducks tended to increase without significant differences among treatments. Feed/gain ratio both in broilers and growing ducks showed a trend to increase. Cholesterol contents of serum both in broilers and growing ducks significantly decreased(P<0.05), and those of breast and thigh meat tended to decrease as the level of dietary Monascus culture increased. In Experiment 2, as the feeding period of dietary Monascus culture increased, body weight gain(P<0.05) and feed intake of broilers tended to decrease whereas those of growing ducks increased without significant differences anions treatments. Feed/gain ratio also increased without significant differences. Cholesterol contents of serum both in broilers and growing ducks significantly decreased(P<0.05), and those of breast and thigh meat tended to decrease as the feeding period of dietary Monascus culture increased without significant differences.

Monascus 배양물의 급여 수준 및 출하 전 급여 기간이 육계 및 육용 오리의 능력과 혈액 및 고기의 콜레스테롤 함량에 미치는 영향을 조사하기 위하여, 실험 1에서는 monacolin-k의 함량이 $0.5\%$인 Monascus 배양물을 시판 육계 사료에 0(C), 0.5(T1), 1.0(T2) 및 $1.5\%$(T3)씩 첨가하여 $2\~6$주령 간에 4주간 급여하는 4처리를 두었으며, 실험 2에서는 대조구(C)와 monacolin-k의 함량이 $0.5\%$인 Monascu 배양물을 시판 육계 사료에 $1.0\%$ 첨가하여 $4\~6$주령(2주간, T1), $2\~6$주령(4주간, T2) 및 $0\~6$주령(6주간, T3)에 급여하는 4 처리를 두었다. 모든 처리에는 3반복을 두었고 반복당 1일령의 육계 16수와 육용오리 10수를 각각$2m{\times}l.5m$의 평사 사육실에 완전임의 배치하여 6주간 실험한 결과는 다음과 같다. 실험 1에서 Monascus 배양물의 급여 수준이 증가할수록 육계의 증체량과 사료 섭취량은 유의적으로 감소하였으며 (P<0.05), 오리는 반대로 증가하는 경향을 보였으나 유의적인 차이는 없었고, 육계와 오리의 사료 요구율은 모두 증가하는 경향을 보였으나 역시 유의적인 차이는 없었다. 6주간의 폐사율은 처리간에 유의성이 인정되었으나(P<0.05)일정한 경향은 보이지 않았다. 육계와 오리의 혈청 콜레스테롤 함량은Monascus배양물의 급여 수준이 증가할수록 유의하게 감소하였으며(P<0.05), 가슴살과 다리살의 콜레스테롤 함량도 감소하는 경향을 보였으나 유의적인 차이는 없었다. 실험 2에서 출하 전 Monascu배양물의 급여 기간이 길어질수록 육계의 증체량(P<0.05)과 사료 섭취 량은 감소하는 경향을 보였으며, 오리는 반대로 증가하는 경향을 보였으나 통계적인 차이는 없었다. 사료요구율은 육계와 오리에서 모두 증가하는 경향을 보였으나 역시 처리간에 유의적인 차이는 없었으며, 폐사율은 오리에서만 유의성이 있었으나(P<0.05) 일관성이 없었다. 육계와 오리의 혈청 중 콜레스테롤 함량은 출하 전 Monascus 배양물의 급여기간이 증가할수록 유의하게 감소하는 경향을 보였으며(P<0.05), 가슴살과 다리살의 콜레스테롤 함량도 감소하는 경향을 보였으나 유의적인 차이는 없었다.

Keywords

References

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