Effect of Mature Miscanthus sacchariflorus var. No. 1 on In Vitro Rumen Fermentation Characteristics and Its Dry Matter Digestibility

서지정보

· 발행기관 : 한국초지조사료학회
· 수록지 정보 : 한국초지조사료학회지 / 32권 / 2호 / 165 ~ 174페이지
· 저자명 : 조상범, David Tinotenda Mbiriri, 오성진, 이아름, 양진호, 유채화, 박창민, 문윤호, 채정일, 최낙진

초록

This study was conducted to develop Miscanthus as a new roughage resource for ruminant animals. Miscanthus sacchariflorus var. No 1, a newly developed germtype in Korea, was harvested at late maturity stage and its effect on rumen pH, ammonia nitrogen, gas production, volatile fatty acid(VFA) production and digestibility were evaluated using in vitro rumen fermentation. The effects of Miscanthus were compared with rice straw. Miscanthus showed significantly higher pH compared to rice straw(p<0.01). As for ammonia nitrogen, there was no significant difference after 12 h of incubation(p>0.05). Gas production in Miscanthus was significantly lower than that of rice straw in overall incubation time(p<0.05) after 6 h of incubation. In VFA production, acetate, propionate, butyrate, valerate and total VFA production in Miscanthus were lower than those in rice straw. However, production of iso-butyrate and iso- valerate were not different in between two forage materials. Dry matter digestibility of Miscanthus was significantly lower than rice straw (p<0.05) during 12~24 h of incubation. As a result, the availability of Miscanthus as roughage source showed approximately 80% that of rice straw.

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