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TMR과 조사료 농후사료 분리급여 방식의 홀스타인 거세우 메탄배출량 비교 : Comparison of Methane Production of Holstein Steers Fed Forage and Concentrates Separately or As a TMR
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- Authors
- Issue Date
- 2016-06
- Publisher
- 한국초지조사료학회
- Citation
- 한국초지조사료학회지, Vol.36 No.2, pp.104-108
- Abstract
- 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 ± 22.5 kg) were used in a 2 × 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.
- ISSN
- 2287-5824
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