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KMID : 1025520120540050363
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Journal of Animal Science and Technology
2012 Volume.54 No. 5 p.363 ~ p.368
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Effect of Dietary Supplementation of Garlic and May Flower Powder on CO2 and CH4 Emission by Hanwoo Cow
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Kim Du-Ri
Ha Jae-Jung
Song Young-Han
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Abstract
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This study was conducted to investigate the effects of dietary garlic and may flower powder on CO2 and CH4 emission by Hanwoo cows fed TMR (Total Mixed Ration) based diet. Animals were housed in a hood-type respiration chamber and the environmental temperature was maintained at 20℃. Gases were measured for 24 hours using the multi-detector instrument gas monitoring system (Mamos-300, Australia). The treatments composed of groups with no intake of garlic and may flower powder (Control), with intake of garlic at 0.5% of DM (T1), with intake of garlic at 1% of DM (T2), with intake of may flower at 0.5%of DM (T3), with intake of may flower at 1% of DM (T4), with intake of garlic and may flower at 0.5% of DM (T5) and with intake of garlic and may flower at 1% of DM (T6). The results indicated that CO2 emission in T3 was 53% lower than that of control (p<0.05), and CH4 emissions was 57% lower than control (p<0.05). Also, the hourly pattern of CO2 and CH4 emissions in T3 showed the least difference with all treatments. Gas emissions pattern peaked after 1 hour of feeding and this gap was wider in the afternoon than in the morning hours.
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KEYWORD
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Carbon dioxide, Garlic, Hanwoo, May flower, Methane
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