Korean Journal of Poultry Science (한국가금학회지)

The Korean Society of Poultry Science (한국가금학회)
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Evaluation of True Metabolizable Energy and the Effect of Corn Distillers Dried Grains with Solubles in the Diets on Broiler Performance and Nutrient Availability

육계에 있어서 옥수수 주정박의 진정 대사 에너지가 측정 및 사료내 첨가가 생산성과 영양소 이용률에 미치는 영향

  • 홍의철 (농촌진흥청 국립축산과학원) ;
  • 정완태 (농촌진흥청 국립축산과학원) ;
  • 강근호 (농촌진흥청 국립축산과학원) ;
  • 박희두 (농촌진흥청 국립축산과학원) ;
  • 서옥석 (농촌진흥청 국립축산과학원) ;
  • 나재천 (농촌진흥청 국립축산과학원) ;
  • 김원 (한일사료) ;
  • 노환국 (한국농업전문대학) ;
  • 황보종 (농촌진흥청 국립축산과학원)
  • Published : 2009.01.02
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Abstract

This study was conducted to investigate the effect of corn distillers dried grains with solubles (CDDGS) in broiler diet on ileal amino acid digestibility and broiler performance. In experiment 1, TMEn of CGGDS ranged from 2,863 to 2,976 kcal/kg and averaged 2,904 kcal/kg on an 86% DM basis. In experiment 2, 192 male Ross broilers (one-day-old) were assigned randomly to 4 dietary treatment groups (12 birds/pen, 4 pens/treatment) as CDDGS levels (0, 6, 12 and 18%) and fed experimental diets for 6 weeks (starter ($0{\sim}2wk$); grower ($2{\sim}4wk$); finisher ($4{\sim}6wk$)). There was no difference in BWG of the chicks. However, feed intake and feed efficiency of chicks fed with non CDDGS groups were better than those of chicks fed with CDDGS fed groups (P<0.05). The amino acid digestibilities of diets containing CDDGS were high for phosphorus but low for lysine, threonine, aspartic acid, cystine and glycine (P<0.05) in the treatments compared to those of the control diet. This study showed that CDDGS has a high ME value and the treatments were low for the ileal amino acid digestibility, but there was no effect on the broiler performances.

본 연구는 아미노산 소화율과 육계의 생산성에 대하여 CDDGS의 효과를 평가하기 위해 실시하였다. <시험 1> CDDGS의 $TME_n$가는 $2,937{\pm}50.1\;kcal/kg$ 이었다. <시험 2> 공시계는 1일령 Ross종 육계 192수를 CDDGS 첨가 수준에 따라 총 4처리구, 처리당 4반복, 반복당 12수씩 완전 임의 배치하였다. 시험 사료는 육계 초기($0{\sim}2$주), 전기($2{\sim}4$주)와 후기($4{\sim}6$)의 기본 사료에 CDDGS를 0, 6, 12, 18% 첨가하였으며, ME가와 CP는 일정하게 유지하였다. 증체량에는 큰 차이가 없었으나, 섭취량은 CDDGS 비급여구가 급여구보다 증가하였다(P<0.05). CDDGS 처리구에서 인의 소화율이 크게 증가하였으며, 아미노산 소화율은 CDDGS 첨가구가 대조구에 비해 lysine, threonine, aspartic acid 및 glycine에서 낮게 나타났다(P<0.05). 이상의 결과로부터, CDDGS는 높은 ME가를 가지고 있으며, CDDGS 첨가구는 대조구에 비해 아미노산 소화율이 낮았으나, 육계 생산성에는 크게 영향을 미치지 않았다.

Keywords

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