Ruminal Dry Matter and Fiber Characteristics of Rice Hulls-bedded Broiler Litter Compared with Rice Straw

  • Kwak, W.S. (School of Life Resources and Environmental Sciences, College of Natural Sciences, Konkuk University) ;
  • Park, J.M. (School of Life Resources and Environmental Sciences, College of Natural Sciences, Konkuk University) ;
  • Park, K.K. (Animal Resources Research Center, College of Animal Husbandry, Konkuk University) ;
  • Kim, W.Y. (Department of Animal Science, Korea National Agricultural College)
  • 투고 : 2002.12.20
  • 심사 : 2003.09.05
  • 발행 : 2004.02.01


Ruminal digestion of dry matter (DM) and neutral detergent fiber (NDF) of processed (ensiled, deepstacked or composted) broiler litter (BL) was determined in situ and in vitro, and compared with rice straw (RS). DM disappearances at 24 and 48 h and digestion of differently processed BL were higher than those of RS. Compared with RS, processed BL was low in NDF disappearance at 72 h incubation, digestion rate ($K_dB$) and digestibility at 0.025 of passage rate; however, deepstacked BL was similar in these NDF characteristics. Processing of BL affected ruminal digestion of nutrients such as DM and NDF adversely. NDF of composted BL, especially, was the most indigestible. This in situ nutritional evaluation indicated that deepstacked BL, the most widely used form of BL, was superior in DM characteristics (fractions, ruminal disappearance and digestibility) and similar in NDF characteristics (ruminal disappearance and digestibility) to RS.


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