Korean Journal of Poultry Science (한국가금학회지)

The Korean Society of Poultry Science (한국가금학회)
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Effects of By-Products of Herbal Medicine on Performance, Intestinal Microbial Population, Blood Biochemical Profiles and Immunological Parameters in Broiler Chicks

한방생약부산물 급여가 육계의 생산성, 장관 미생물 균총, 혈액 생화학적 성상 및 면역학적 지표에 미치는 영향

  • Jang, In-Surk (Dept. of Animal Science and Biotechnology, and the Regional Animal Research Center (RAIC), Gyeongnam National University of Science and Technology)
  • 장인석 (경남과학기술대학교 동물생명과학과, 동물생명산업센터)
  • Received : 2015.11.10
  • Accepted : 2015.12.02
  • Published : 2015.12.31
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Abstract

The study was carried out to investigate the effects of by-products of herbal medicines on performance, enteric microflora and blood biochemical profiles and immunological parameters in broiler chicks. A total of ninety-six, 3-d-old birds were assigned to a basal diet (CON) or a basal diet supplemented with 0.15 % (HM1), 0.3% (HM2) or 0.5% (HM3) by-products of herbal medicines. There was a significantly (p<0.05) improved feed conversion ratio (FCR) in birds fed diet supplemented with 0.15% by-products of herbal medicines (HM1) compared with the control birds during starter period (3~21 days). However, no difference in body weight, feed intake, total gain and FCR among treatment groups was observed during the entire feeding period (3~35 days). The colony forming units (CFU) of E. coli and Lactobacilli in the digesta of ileo-cecum was not also affected by dietary treatment. Serum AST (aspartate aminotransferase) and glucose decreased (p<0.05) in birds fed diets supplemented with herbal medicines compared with those fed the basal diet. In particular, the birds fed diets supplemented with herbal medicines showed a significant (p<0.05) increase in blood mean corpuscular volume (MCV) level compared with the control birds. However, the most of blood biochemical and hematological parameters and immunoglobulins (IgG and IgA) were not affected by the dietary treatment. In conclusion, the low level of dietary herbal medicines showed beneficial effects on FCR during starter period and liver functions, suggesting that by-products of herbal medicines may be applicable as functional feed additives in birds.

본 연구는 한방생약부산물을 이용한 육계의 사료첨가제를 개발하기 위해 대조군(CON), HM1(한방생약부산물 0.15%), HM2(한방생약부산물 0.3%) 및 HM3(한방생약부산물 0.5%) 등 4개군에 육계 96수를 완전임의 배치하여 생산성, 장내 미생물 균총, 혈액 생화학적 지표, 면역글로블린 및 백혈구 성상의 변화에 대하여 조사하였다. 한방생약부산물 0.15% 첨가군(HM1)에서 대조군에 비해 육계전기(3~21일령) 사료요구율이 유의적(p<0.05)으로 개선되었으나, 전 기간에서는 차이가 없었다. 장내 소화물의 E. coli 및 Lactobacili 총 균수에서도 한방생약부산물 급여는 영향을 미치지 않았다. 혈액 생화학적 지표에서는 한방생약부산물 급여 시 AST 및 glucose 수준을 유의하게(p<0.05) 감소시켰다. 면역글로불린(IgG 및 IgA)과 백혈구 감별계수에서는 처리에 따른 차이는 없었다. 결론적으로 육계에서 0.15~0.3% 수준의 한방생약 부산물 첨가는 육계전기에 사료이용성 및 간 조직의 기능을 개선하는 효과가 있는 것으로 사료된다.

Keywords

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