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

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 ㎉/㎏ and averaged 2,904 ㎉/㎏ 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 (0～2wk); grower (2～4wk); finisher (4～6wk)). 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.