Journal of Animal Science and Technology

Korean Society of Animal Sciences and Technology (한국축산학회)
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Effects of Feeding Charcoal Powder and Vitamin A on Growth Performance, Serum Profile and Carcass Characteristics of Fattening Hanwoo Steers

활성탄과 비타민 A의 급여가 거세 한우의 성장, 혈액성상 및 도체 특성에 미치는 영향

  • Kim, B.K. (Gyeongsangbuk-Do Livestock Research Institute) ;
  • Kim, Y.J. (Division of Life Resources, Daegu University)
  • 김병기 (경상북도 축산기술연구소) ;
  • 김영직 (대구대학교 생명자원학부)
  • Published : 2005.04.30
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Abstract

Effects of supplemental charcoal powder and vitamin A on growth performance, serum profile and carcass characteristics with 24 Hanwoo steers were inves$\ell$ated. The Hanwoo steers were randomly assigned to one of the three dietary treatments: 1) Control(commercial feed), 2) Tl(commercial feed supplemented with 2% charcoal powder and 0.2 % vitamin A), 3) T2(commercial feed with 2 % charcoal powder). In the age 26 month, body weight of control Tl and T2 were 633.8 kg, 621.0 kg, 619.4 kg, respectively, with not significantly different(P> 0.05). The daily weight gain of control was the highest followed by Tl and T2. The contents of vitamin A(retinol) and total cholesterol in the blood of Tl was higher Tl(56.32 $\ell$ / dt, 163.83 mg/ dz) than the other treatment groups(P < 0.05). The average of WBC value in the blood was 6.86-" 9.83 k / ${\mu}\ell$, RBC value was 7.98 - 11.26 k / ${\mu}\ell$ and blood platelet was 236.7 - 287.0 k / ${\mu}\ell$. But The serum profile in blood was not significantly different between control and treatment groups. The carcass grade and characteristics of all treatments in Hanwoo steers were not significantly different except the texture.

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