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The Effects of Aqueous Fibrolytic Enzyme Products Supplementation on In vitro Fermentation and Growth Performance of Hanwoo Steers

섬유소분해효소 발효액의 첨가가 In vitro 발효 및 거세한우의 성장에 미치는 영향

  • Kook, Kil (Division of Animal Science, Chonnam National University) ;
  • Chung, Wan-Tae (National Institute of Animal Science, RDA) ;
  • Park, Hong-Seok (Korea Research Institute of Bioscience & Biotechnology) ;
  • Jang, Ki-Yeoung (Division of Animal Science, Chonnam National University) ;
  • Lee, Ji-Wung (Division of Animal Science, Chonnam National University) ;
  • Moon, Seung-Ju (Division of Animal Science, Chonnam National University) ;
  • Kim, Kwang-Hyun (Division of Animal Science, Chonnam National University)
  • 국길 (전남대학교 동물자원학부) ;
  • 정완태 (농촌진흥청 국립축산과학원) ;
  • 박홍석 (한국생명공학연구원) ;
  • 장기영 (전남대학교 동물자원학부) ;
  • 이지웅 (전남대학교 동물자원학부) ;
  • 문승주 (전남대학교 동물자원학부) ;
  • 김광현 (전남대학교 동물자원학부)
  • Received : 2007.12.31
  • Accepted : 2009.01.08
  • Published : 2009.02.01

Abstract

The objective of this study was to investigate the effects of an enriched diet supplemented with aqueous fibrolytic enzyme products (FEP) on In vitro fermentation and growth performance of Hanwoo Steers. Total mixed ration combined with fibrolytic enzyme products showed a slight increase in the pH level on In vitro fermentation. Acetate ratio in volatile fatty acids, and the concentration of total volatile fatty acids were significantly greater at 12hr and 24hr after cultivation (p<0.05). Dry matter digestibility was significantly increased in groups supplied with aqueous fibrolytic enzyme products at 24hr after cultivation (p<0.05). In a rearing trial, the average daily gain and feed efficiency improved in the treatment groups supplied with aqueous fibrolytic enzyme products. Nutrient digestibility such as DM, crude fiber, NDF, and ADF digestibility were also significantly increased with the addition of aqueous fibrolytic enzyme products (p<0.05). Therefore, the aqueous fibrolytic enzyme products supplementation on In vitro fermentation is effective in improving the condition of rumainal fermantation. Also two kinds of aqueous fibrolytic enzyme products were found to be effective in improving the average daily gain and feed efficiency in Hanwoo Steers.

Acknowledgement

Grant : 섬유소분해미생물을 이용한 효소생산 및 산업화기술개발

Supported by : 농촌진흥청

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Cited by

  1. Effect of Enzyme and Yeast Extract Supplement on Growth Performances, in vitro Ruminal Fermentation and Blood Parameters in Hanwoo Steers vol.48, pp.3, 2014, https://doi.org/10.14397/jals.2014.48.3.173