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Effects of Dietary Herbaceous Peat and Vitamin C on Immunity and Growth Performance in Holstein Calves

허브부식토 및 비타민 C 급여가 홀스타인 송아지의 면역력 및 증체에 미치는 영향

  • 김홍윤 (한경대학교 동물생명환경과학부) ;
  • 박중국 (농협중앙회 축산연구원) ;
  • 안종호 (한경대학교 동물생명환경과학부)
  • Received : 2012.06.21
  • Accepted : 2012.09.27
  • Published : 2012.12.31

Abstract

This study was conducted to determine the effects of supplementing herbaceous peat preparation and vitamin C in order to find out its effects on immunity and growth performance in Holstein calves. Twenty Holstein calves ($39.3{\pm}4.21kg$ average initial body weight) were allocated into four treatments by completely randomized design. Dietary treatments included: 1) control (Basal diet), 2) treatment 1 (control +5% herbaceous peat), 3) treatment 2 (control+10g vitamin C) and 4) treatment 3 (control+10g herbaceous peat+10g vitamin C). The duration of the experiment was 38 days in this experiment, and blood metabolism, dry matter intake, body weight and diarrhea frequency were investigated. For blood metabolism, white blood cells (WBC), neutrophils (NE), lymphocytes (LY), and red blood cells (RBC) did not show any significant differences among treatments. Average daily gain and feed conversion were highest in T1 group feeding with the herbaceous peat preparation compared to the control groups and diarrhea frequency showed lowest in T3 group. Overall results of the present experiment indicated that dietary supplementation with herbaceous peat influenced positively on growth performances in Holstein calves.

본 실험은 허브부식토 및 비타민 C 공급에 따른 송아지의 면역력, 증체 및 건강에 미치는 영향을 조사하기 위하여 대조구, 허브부식토제제 첨가구(T1), 비타민C제제 첨가구(T2), 비타민 C제제와 허브부식토제제의 50 : 50 혼합 첨가구(T3)로 나누고 시험축은 각 시험구당 5두씩 임의 배치하여 수행하였다. 조사항목으로 혈중 대사물질, 사료섭취량, 체중 및 설사빈도를 측정하였다. 혈액성상으로 WBC, NE, LY 및 RBC은 처리간 유의한 차이를 나타내지 않았으나 증체율 및 사료효율은 허브 부식토를 급여한 T1구에서 다른 처리구와 비교하여 유의하게 가장 높았으며, 설사빈도는 허브 부식토+비타민 C 급여한 T3구에서 낮았지만 유의한 차이는 없었다. 따라서 본 연구에서의 Holstein 송아지에게 부식토 급여는 송아지의 면역성 향상에는 분명한 효과를 보이지 못하였으나 증체율과 사료효율에 있어 긍정적인 효과가 있는 것으로 판단되었다.

Keywords

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