Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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Effect of Non-Starch Carbohydrase Supplementation on Productivity, Blood Parameters, and Cecal Microorganisms in Broiler Chickens

비전분성 탄수화물 분해효소 혼합급여가 육계의 생산성, 혈중 대사물질, 및 장내미생물의 변화에 미치는 영향

  • Sun, Sang Soo (Division of Animal Science, Chonnam National University) ;
  • Park, Cheol Ju (Division of Animal Science, Chonnam National University)
  • 선상수 (전남대학교 동물자원학부) ;
  • 박철주 (전남대학교 동물자원학부)
  • Received : 2019.08.07
  • Accepted : 2019.12.06
  • Published : 2019.12.31
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Abstract

This study examined the productivity, blood characteristics, and cecal microorganisms with the addition of mixed enzymes in broiler chickens. Three hundred chickens (Ross 308) were assigned randomly to five treatment groups (control, 0.5 MXG, 1.0 MXG, 2.0 MXG, and 1.0 G) with three replications. Based on the results, the weight, feed intake, feed efficiency, and daily gain increased slightly by the treatment assignment. Carcass, stomach, and heart weights increased slightly in all treatment groups compared to the control. On the other hand, liver weight was significantly low by enzyme addition compared to the control group (p<0.05). The total number of appendix bacteria decreased significantly in all treatment groups compared to the control group (p<0.05). The total protein, blood urea nitrogen (BUN), and glucose level did not differ after treatment. On the other hand, the IgG level was significantly higher in the 1.0 MXG and 2.0 MXG groups than in the control group (p<0.05). In conclusion, the addition of a mixed enzyme (MXG) will improve the feed efficiency and IgG, as well as reduce the liver weight and total bacteria in broiler chickens.

본 연구는 혼합효소제를 육계사료에 첨가 급여 하였을때 생산성, 혈액성분, 및 장내 미생물의 변화를 구명하고자 실시하였다. 병아리(Ross 308) 300수를 공시하여 5개의 처리구 (대조구, 0.5MXG, 1.0MXG, 2.0MXG 와 1.0G)에 완전 임의배치하고 3반복으로 수행하였다. 결과는 체중, 사료섭취량, 사료효율 및 일당증체량은 대조구에 비하여 MXG 효소 처리구에서 모두 높게 나타났다. 도체중, 근위, 심장의 무게는 대조구에 비하여 효소 첨가구에서 높게 측정되었으나, 이는 도체중의 증가에 대한 영향으로 보인다. 그러나, 간장의 무게는 대조구에 비하여 처리구에서 유의적으로 낮게 측정되었다(p<0.05). 장내 전체 세균수는 대조구에 비하여 효소 첨가구(MXG)에서 유의적으로 감소하였다 (p<0.05). 혈액성분 중에서 total protein, 혈중요소태질소(BUN) 와 포도당 함량은 변화가 없었다. 그러나, 면역항체인 IgG 농도는 대조구에 비하여 1.0 과 2.0 MXG 혼합 급여구에서 유의적으로 높았다 (p<0.05). 결론적으로 혼합효소제 첨가는 육계에서 사료효율과 IgG 수준은 향상시켰으며, 간장의 무게와 장내 세균숫자는 감소시키는 효과가 있다.

Keywords

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