잠시만 기다려 주세요. 로딩중입니다.

Substitution effects of rice for corn grain in total mixed ration on rumen fermentation characteristics and microbial community in vitro

한국축산학회지 2020년 62권 5호 p.638 ~ 647
유대겸, Hamid Muhammad Mahboob Ali, Kim Han-Been, 문준범, 송재용, Lee Se-Young, Seo Ja-Kyeom,
소속 상세정보
유대겸 ( Yoo Dae-Kyum ) - Pusan National University Department of Animal Science
 ( Hamid Muhammad Mahboob Ali ) - Pusan National University Department of Animal Science
 ( Kim Han-Been ) - Pusan National University Department of Animal Science
문준범 ( Moon Joon-Beom ) - Pusan National University Department of Animal Science
송재용 ( Song Jae-Yong ) - Nonghyup Co. Ltd. Institute of Livestock
 ( Lee Se-Young ) - Yonam College Division of Animal Husbandry
 ( Seo Ja-Kyeom ) - Pusan National University Department of Animal Science

Abstract


This study determined the substitution effects of rice for corn as the main grain source in a total mixed ration (TMR). In vitro rumen fermentation characteristics and microbes were assessed using two experimental diets. Diets included 33% dry matter (DM) of either corn (Corn TMR) or rice grains (Rice TMR). In a 48-h in vitro incubation, DM digestibility (IVDMD), neutral detergent fiber degradability (IVNDFD), crude protein digestibility (IVCPD), volatile fatty acids (VFAs), pH and ammonia nitrogen (NH3-N) were estimated. Gas production has been calculated at 3, 6, 12, 24 and 48 h. Our results indicate that the gas production, VFAs, IVDMD, and IVNDFD of Rice TMR were higher than those of Corn TMR (p < 0.05). Ruminal pH and total fungi were significantly higher in Corn TMR (p < 0.05) than in Rice TMR; however, NH3-N and IVCPD were not affected by treatment type. In conclusion, substituting rice for corn at 33% DM in TMR appears to have no negative effects on in vitro rumen fermentation characteristics. Therefore, rice grains are an appropriate alternative energy source in early fattening stage diets of beef cattle.

키워드

Rice grains; Corn grains; Total mixed ration; In vitro fermentation

원문 및 링크아웃 정보

등재저널 정보