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Effects of Acanthopanax Senticosus Leaves Supplementation on Performance, Nutrient Digestibility and Blood Characteristics in Korean Black Goats

가시오갈피 지엽의 급여가 흑염소의 생산성, 영양소 소화율 및 혈액성상에 미치는 영향

  • Published : 2006.12.30

Abstract

This study was conducted not only to investigate effects of different supplementation levels of Acanthopanax senticosus leaves on feed intakes, nutrient digestibility, nitrogen retention, and blood metabolites in Korean black goats but also to obtain basic data for nutritive value of Acanthopanax senticosus leaves and production of high quality functional animal products. Twelve Korean black goats were allotted to treatments in four groups of three goats per treatment and then they were housed in individual metabolism cages with completely random arrangements for 21 days. Four treatments were separated into controls and three different supplementation levels of Acanthopanax senticosus such as 10, 20 and 30%, respectively. For the chemical composition of experimental diets, crude protein (CP) contents of controls were 13.39% and those of supplementation treatments were lowered with increasing levels of Acanthopanax senticosus. Control groups tended to have higher acid detergent fiber (ADF) and neutral detergent fiber (NDF) contents as compared to supplementation groups, but non-fibrous carbohydrate (NFC) contents tended to be higher far supplementation groups than those for controls. Feed intakes had no significant difference among treatments, but digestible dry matter amounts were significantly higher for 20 and 30% supplementation groups than those for other treatments. Dry matter intakes per metabolic body weight and their ratio per body weight were highest in 20% group, but those of 40% groups were lowest (p<0.05). Crude protein, ADF and NDF digestibilities were significantly higher in Acanthopanax senticosus supplementation groups in comparison to controls (p<0.05), and in particular, they were increased with increasing supplementation levels of tranthopanax senticosus. Nitrogen retention was significantly higher for 20 and 30% treatments than those fur controls (p<0.05). Plasma urea nitrogen concentration was significantly lower for 30% supplementation group than those fur controls (p<0.05). Furthermore, plasma triglyceride concentration was significantly lower for Acanthopanax senticosus groups than those for controls (p<0.05). The results showed that supplemental level of 20% Acanthopnnax senticosus leaves to Korean black goats improved nutrient digestibility, nitrogen retention, and plasma urea nitrogen and triglyceride concentrations. Consequently, it might contribute to more efficient production of Korean black goats.

본 연구는 가시오갈피 지엽의 사료가치와 고품질 기능성 축산물 생산에 기초적인 자료를 얻고자 가시오갈피 지엽의 첨가 비율에 따른 흑염소의 사료 섭취량, 소화율, 질소 축적율 및 혈액성상에 미치는 영향을 조사하였다. 12두의 숫흑염소를 네 처리구로 나누어 처리구당 3두씩 완전 임의배치하여 개별대사케이지에 수용하였고, 실험기간은 21일간 지속되었다. 처리구는 대조구 및 가시오갈피 지엽을 10, 20 및 30%수준으로 첨가하여 네 처리구로 나누었다. 결과를 살펴보면, 시험사료의 화학적 조성분은 조단백질 함량이 대조구가 13.39%이었고, 가시오갈피 시험구는 첨가 비율이 증가함에 따라 조단백질 함량이 낮아졌다. ADF와 NDF 함량은 대조구가 가시오갈피 첨가구 보다 높은 경향이었고, NFC 함량은 가시오갈피 첨가구가대조구 보다 높은 경향이었다. 건물 섭취량은 시험구간 유의적 차이가 없었으나, 가소화 건물량에서는 가시오갈피를 20과 30% 첨가한 구가 다른 구에 비하여 유의하게 높게 나타났다(p<0.05). 대사체중당 건물 섭취량과 체중에 대한 건물섭취 비율은 가시오갈피 20% 첨가구가 가장 높았고, 가시오갈피 30% 첨가구가 가장 낮았다(p<0.05). 조단백질, ADF 및 NDF 소화율은 가시오갈피 첨가구가 대조구에 비해 높은 소화율을 보였고, 특히 가시오갈피 첨가 수준이 높을수록 높게 나타났다(p<0.05). 질소 축적량과 질소 축적율은 가시오갈피를 20과 30% 첨가한 구가 대조구 보다 유의하게 높게 나타났다.(p<0.05). 혈장내 요소태질소농도(PUN)는 가시오갈피 30% 첨가구에서 가장 낮았고, 혈장내 triglyceride는 가시오갈피 모든 첨가구가 대조구 보다 유의하게 낮았다(p<0.05). 이상의 결과를 종합하여 고려할 때 가시오갈피 지엽을 20% 수준으로 첨가시 소화율, 질소 축적, 혈장 내 요소태 질소 및 triglyceride 농도를 개선시켰고, 이는 흑염소의 생산성 향상에 잠재적으로 기여할 것으로 기대된다.

Keywords

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