Earticle

초록

영어

The aim of this study was to prepare rice straw silage using cabbage by-product and persimmon peel which are agricultural by-products produced during the same season in Korea. The treatments comprised a commercial corn silage as the control and four rice straw silages (P15-1, P15-2, P30-1, and P30-2) with different levels of persimmon peel supplementation (15%, 30%) and ensiled periods (1 or 2 months). The cabbage by-products were used to adjust silage moisture (approximately 65%). The quality of the experimental silages was evaluated based on organic acid content, palatability to three Holstein dairy cows, and manufacturing cost. In the corn silage, all chemical compositions, except total digestible nutrients and levels of lactic and butyric acids, were significantly (p<0.05) higher than those of the rice straw silages. However, considering the quality analysis using Flieg's score, the rice straw silage supplemented with 30% persimmon peel ensiled for 2 months (P30-2) was estimated as second grade to corn silage, and was relatively better in palatability to dairy cows than the other rice straw silages, which were considered third grade. The manufacturing cost of rice straw silages using cabbage by-product and persimmon peel compared to that of corn silage was reduced by 28%. Consequently, to prepare rice straw silage adjusted to 65% moisture using only cabbage by-products without inoculant, 30% of persimmon peel, 10% of ground corn, and 2% of molasses as a sugar source should be ensiled for at least 2 months.

목차

ABSTRACT
Ⅰ. 서론
Ⅱ. 재료 및 방법
1. 공시재료 및 시험설계
2. 조사항목 및 방법
3. 기호성 평가
4. 제조원가
5. 통계분석
Ⅲ. 결과 및 고찰
1. 조성분 함량
2. pH 및 유기산
3. 기호성 평가
4. 제조원가
Ⅳ. 요약
Ⅴ. 참고문헌

저자

• 김현정 [ Hyun Jung Kim | 농협사료 계장 ]
• 조웅기 [ Woong-Ki Cho | Farm Fresh Bio 연구실장 ]
• 문여황 [ Yea-Hwang Moon | 경상국립대학교 교수 ] Corresponding Author

참고문헌