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논문 기본 정보

자료유형
학술저널
저자정보
이세영 (충남대학교) 이상문 (충남대학교) 김종형 (농촌진흥청) 기광석 (농촌진흥청) 김현섭 (농촌진흥청) 감동근 (CJ 제일제당) 이재환 (CTC바이오) 이정진 (CTC바이오) 배귀석 (중앙대학교) 서성원 (충남대학교)
저널정보
충남대학교 농업과학연구소 Korean Journal of Agricultural Science 農業科學硏究 第37卷 第2號
발행연도
2010.9
수록면
239 - 243 (5page)

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초록· 키워드

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The objective of this study was to evaluate effects of supplementation of β-mannanase (CTCZYME<SUP>ⓡ</SUP>, CTCBIO, Inc.) on feed intake, growth performance and fecal health of calves fed two levels (3% vs. 8%) of palm kernel meal (PKM). A total of nine Holstein calves were divided into three groups, and fed a conventional starter containing 3% PKM (CON), CON+ 0.1% CTCZYME <SUP>ⓡ</SUP> (TRT1), or a starter containing 8% PKM+ 0.1% CTCZYME<SUP>ⓡ</SUP> (TRT2). No clinical symptom of calves was observed through the trial. We did not find significant differences among the treatments on mean feed intake, growth performance, or fecal health during the four-week experimental period. Feed efficiency tended to be improved by adding CTCZYME<SUP>ⓡ</SUP> (0.46, 0.87 and 0.52 for CON, TRT1 and TRT2, respectively). Compared with CON (921 g/d and 786 g/d), TRT2 had lower feed intake (727 g/d) and average daily gain (ADG, 631 g/d) before weaning. However, feed intake (2300 g/d) and ADG (1012 g/d) were similar or even higher in TRT2 than CON (2269 g/d and 560 g/d) after weaning. This was probably due to the effect of a large amount of mannan-oligosaccharide released from PKM by β-mannanase. Salmonella was not detected any fecal samples. No significant difference was observed in the number of fecal E. coli or fecal properties including color, smell, and watery indexes among the treatments. We conclude that a calf starter containing 8% PKM with 0.1% CTCZYME<SUP>ⓡ</SUP> is comparable with a conventional starter in feed intake and growth performance of calf, which is beneficial in terms of reduction in feed cost.

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ABSTRACT
Ⅰ. 서론
Ⅱ. 재료 및 방법
Ⅲ. 결과 및 고찰
Ⅳ. 결론
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UCI(KEPA) : I410-ECN-0101-2012-480-003679108