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Effects of Ruminally Inserted Artificial Fiber on Growth Performance, Feed Intake and Carcass Characteristics of Hanwoo Steers

반추위내 인공섬유질 투여가 거세한우의 발육, 사료섭취량 및 도체특성에 미치는 영향

  • 조영무 (농촌진흥청 국립축산과학원) ;
  • 박병기 (농촌진흥청 국립축산과학원) ;
  • 권응기 (농촌진흥청 국립축산과학원) ;
  • 이왕식 (농촌진흥청 국립축산과학원) ;
  • 최창용 (농촌진흥청 국립축산과학원) ;
  • 손삼규 (농촌진흥청 국립축산과학원) ;
  • 홍성구 (농촌진흥청 국립축산과학원)
  • Received : 2009.04.28
  • Accepted : 2009.06.10
  • Published : 2009.06.01

Abstract

This experiment was carried out to investigate the effects of ruminally inserted artificial fiber (RIAF; polymerized fibrous implements) on growth performance, feed intake and carcass characteristics of Hanwoo steers. Thirty six steers averaging $368.3\pm20.3kg$ were randomly assigned into three groups: control group, the ruminal insertion of three pieces (T1), and five pieces (T2) of RIAF. Average daily gain, feed intakes and conversions among treatments were similar. Numbers of rumen villi were higher in RIAF treatment (T1 and T2) groups than control group, but they were not significant (p>0.05). The length of villi were significantly longer in T2 than control group (p<0.05). Fecal weight tended to decrease in T1 compared with the control group (p>0.05). There was no differences on carcass traits inc1uding longissmus muscle area, back fat thickness, marbling score, meat color, and fat color among treatments.

Keywords

Hanwoo steer;RIAF;Feed intake;Villi;Carcass characteristics

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