Effects of Activated Carbon and Charcoal on in vitro Nutrient Disappearances and Ruminal Fermentation Characteristics

고농후사료에 대한 목탄 및 활성탄의 첨가 수준이 인공위내 소화율, 휘발성 지방산 및 개스 생산량에 미치는 영향

  • Lee, Soo-Kee (Division of Animal Science and Resources, Chungnam National University) ;
  • Cha, Sang-Woo (Division of Animal Science and Resources, Chungnam National University) ;
  • Kim, Sun-Kyun (Dept. of Animal Science, Woosong Information College)
  • 이수기 (충남대학교 농과대학 동물자원학부) ;
  • 차상우 (충남대학교 농과대학 동물자원학부) ;
  • 김선균 (우송정보대학 동물과학과)
  • Published : 2002.12.31

Abstract

This study was conducted to investigate the effects of the addition of activated charcoal (AC) and oak charcoal on in vitro ruminal fermentation characteristics, nutrient disappearance, and ruminal gas production. AC and oak charcoal were added at the levels of 0.50, and 1.00 % to experimental diet (roughage/concentrate ratio ; 2/8). Ruminal pH and ammonia-N tended to increase by adding AC(P<0.05). But oak charcoal did not affect the ruminal pH and ammonia-N. Although not significant, ruminal total VFA and molar percentage of butyric acid tended to decrease in AC diets. but molar percentage of acetate and propionate were not affected by adding AC. Ruminal degradation of dry matter, crude protein, NDF, and ADF in AC diets tended to increase than in non-AC diet, however, no tendency in ruminal degradation of hemicellulose was observed. Ruminal gas production tended to increase in the AC and oak charcoal diets(P<0.05). Although there appeared some beneficial effects in adding AC to ruminant diets in this study, more works should be done with AC before we can make clear conclusion on the use of AC in the ruminant diets.

Acknowledgement

Supported by : 충남대학교