Comparison of Methane Production of Holstein Steers Fed Forage and Concentrates Separately or As a TMR

Lee, Yoonseok; Bharanidharana, Rajaraman; Park, Jae-Hyun; Jang, Sun Sik; Yeo, Joon Mo; Kim, Wan Young

Comparison of Methane Production of Holstein Steers Fed Forage and Concentrates Separately or As a TMR

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TMR과 조사료 농후사료 분리급여 방식의 홀스타인 거세우 메탄배출량 비교

Type: Academic journal

Author: Lee, Yoonseok (서울대학교 그린바이오과학기술연구원) Bharanidharana, Rajaraman (서울대학교 국제농업기술대학원) Park, Jae-Hyun (축산환경관리원) Jang, Sun Sik (국립축산과학원 한우연구소) Yeo, Joon Mo (국립한국농수산대학 대가축학과) Kim, Wan Young (국립한국농수산대학 대가축학과)

Journal: THE KOREAN SOCIETY OF GRASSLSND SCIENCE 한국초지조사료학회지 한국초지조사료학회지 제36권 제2호 KCI Accredited Journals

Published: 2016.1

Pages: 104 - 108 (5page)

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Comparison of Methane Production of Holstein Steers Fed Forage and Concentrates Separately or As a TMR

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The objective of this study was to determine how feeding forage and concentrate separately (SF) or as a total mixed ration (TMR) affects enteric methane production of cattle. Six Holstein steers ($203{\pm}22.5kg$) were used in a $2{\times}3$ changeover design experiment. Experimental diets (TMR and SF) consisted of compound feed, timothy hay and soybean curd residue in a ratio of 40:48:12, respectively, and diets were fed at 10% of metabolic body weight, on an as-fed basis. There were no differences in dry matter intake and enteric methane production (g/d) between SF and TMR but the methane conversion rate (methane energy/GE intake) of TMR was significantly higher (p=0.05) than that of SF. The mean methane emission factor (kg/head/year) and conversion rate of the two treatments were 21.4 and 0.05, respectively. There was a strong relationship between metabolic body weight and enteric methane production (p<0.001). At the present time, further studies may be necessary in order to establish the effects of TMR and SF on enteric methane production.

#Holstein steers #Methane production #Total mixed ration

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References (26)

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Aguerre, M. J. / 2011 / Effect of forage-to-concentrate ratio in dairy cow diets on emission of methane, carbon dioxide, and ammonia, lactation performance, and manure excretion / Journal of Dairy Science 94:3081~3093

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Caplis, J. / 2005 / Effects of supplementary concentrate level with grass silage, and separate or total mixed ration feeding, on performance and carcass traits of finishing steers / Irish Journal of Agricultural and Food Research 44:27~43

조영무 / 2008 / 섬유질배합사료 급여가 거세한우의 발육 및 도체특성에미치는 영향 / 한국동물자원과학회지 50(3):363~372

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