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젖산균과 효소제 처리에 의한 동계사료작물 발효성상, In vitro 반추위 발효 및 소화율에 미치는 영향 연구 KCI 등재
Effect of Lactic acid bacteria and Enzyme Supplementation on Fermentative Patterns of Ensiling Silages, Their In vitro Ruminal Fermentation, and Digestibility
pp.7-14
The objective of this study was to determine the effect of bacterial inoculation (Lactobacillus plantarum or combo inoculant mixed with Lactobacillus plantarum and Lactobacillus buchneri) and addition of fibrolytic enzyme on chemical compositions and fermentation characteristics of whole crop barley (WCB) and triticale (TRT) silage, their ruminal in vitro fermentation, and digestibility. In TRT silage, enzyme addition significantly (p<0.01) decreased NDF content compared to no enzyme addition treatment. Organic acids such as lactate and acetate contents in WCB and TRT silages were significantly (p<0.01) higher compared to those in the control. Particularly, lactate content was the highest in L. plantarum treatment. Fibrolytic enzyme treatment on both silages had relatively higher lactic acid bacteria content, while mold content was lower in both treatments compared to that in the control. In vitro dry matter digestibility was generally improved in WCB silages. It was higher (p<0.01) in TRT with mixed treatment of L. plantarum, L. buchneri, and enzyme compared to others. In vitro ruminal acetate production was relatively higher in treatments with both enzyme and inoculant additions compared to that in the control. Therefore, the quality of silage and rumen fermentation could be improved by inoculants (L. plantarum and L. buchneri) regardless whether whole crop barley (WCB) or triticale (TRT) silage was used. Although it was found that fibrolytic enzyme addition to both silages had various quality and rumen fermentation values, further study is needed
Ⅱ. 재료 및 방법
1. 사료작물, 사일리지 제조 및 실험설계
2. 사일리지 품질평가
3. In vitro 반추위 발효 패턴 및 소화율
4. 통계분석
Ⅲ. 결과 및 고찰
1. 사일리지 화학적 성분 분석
2. 사일리지의 pH, 암모니아태 질소, 유기산 및 생균수 측정
3. 반추위 발효 패턴 및 소화율 조사
Ⅳ. 요 약
Ⅴ. 사 사
Ⅵ. REFERENCES
