Abstract
생후 2개월령 한우송아지를 각 처리구별로 8두씩 배치하여 총 24두(3처리<TEX>${\times}$</TEX> 8두)를 대상으로 대조구(한방제재 무첨가)와 T1구 (한방제재 0.3% 첨가), T2구(한방제재 0.5% 첨가구)로 나누어 배치하여 총 150일간 시험한 결과는 다음과 같다. 총 증체량과 두당 총 사료섭취량은 T1구가 각각 142.8 kg와 545.9 kg으로 다른 처리구보다 크게 높게 나타나 통계적인 유의차가 있었다(p<0.05). 혈액의 이화학적 성상에서 평균적으로 총 콜레스테롤 함량은 86.43~97.00 mg/dl 범위에 있었으며, TG는 13.26~13.86 mg/dl, GOT는 76.97~79.60 mg/dl, GPT는 19.54~20.97 mg/dl, WBC는 8.75~9.95 k/<TEX>${\mu}{\ell}$</TEX>, RBC는 10.14~11.91 M/<TEX>${\mu}{\ell}$</TEX>, 헤모글로빈은 10.74~11.20 g/<TEX>$d{\ell}$</TEX>로서 처리구간에 유의적인 차이는 없었다. 그러나 면역글로블린(IgG)은 시험구(6.05~6.02 mg/ml)가 대조구(5.74 mg/ml) 보다 높았고(p<0.05), 시험 월령이 경과함에 따라 점차 낮아지는 경향이었다. 시험기간 동안의 송아지 분변 조사에서, 시험개시후 시험 1~2개월령에 발병원인균의 수가 가장 많았으나, 시험이 경과함에 따라 낮아지는 경향이었고, 분변중의 기생충(Eimeria spp), 용혈성 대장균(E. Coli)와 바이러스(BVDV)는 대조구가 시험구보다 높은 경향을 보였고, 시험기간 동안의 설사 발병두수에서도 시험2구가 대조구보다 감소하는 경향이었으나 통계적인 유의차는 없었다(대조구 24두 ; T1구 9두 ; T2구 13두). 이상의 결과를 종합해보면, 한방제재 첨가는 송아지의 성장률 및 송아지설사 예방에 영향을 미치는 것으로 판단된다. The current study was conducted to determine the effects of herbal supplement on growth performances and diarrhea in Hanwoo calves. Total 24 Hanwoo calves (3 treatments: 8 calves per treatment) were randomly assigned to either Control (no treatment), Treatment 1 (0.3% herb supplement), or Treatment 2 (0.5% herb supplement) diets for 150 days. Total body weight gain and total feed intake per head in Treatment 1 was 142.8 kg and 545.9 kg, respectively, and it was higher (p<0.05) compared to other groups. The blood total cholesterol range was 86.43~97.00 mg/dl, triglycerides 13.26~13.86 mg/dl, GOT 76.97~79.60 mg/dl, GPT 19.54~20.97 mg/dl, WBC 8.75~9.95 k/<TEX>${\mu}{\ell}$</TEX>, RBC 10.14~11.91 M/<TEX>${\mu}{\ell}$</TEX>, and hemoglobin 10.74~11.20 g/<TEX>$d{\ell}$</TEX>, respectively, with no significant (p>0.05) differences among treatments. The blood immunoglobulin G levels were 5.74~6.05 mg/ml which tended to decrease as experimental period extended. Total number of pathogens in feces showed peaks at 1~2 months after the initiation of experiment, and tended to decrease thereafter. Total number of Eimeria spp., E. coli and BVDV in feces showed no significant differences but control group showed higher counts than both treatment groups. During overall period, the incidence of pathogenic diarrhea in calves of 2 treatment groups was much lower than control group calves (C: 24, vs T1: 9, T2: 13 heads), however, it was not significant (p>0.05). In conclusion, supplementation of herbs in Hanwoo calf diets might be beneficial to improve growth performances and prevent diarrhea.
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