Korean Journal of Poultry Science (한국가금학회지)

The Korean Society of Poultry Science (한국가금학회)
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Effects of pine Bark Spent Liquor Prepared by Alkaline Sulfite-Anthraquinone Cooking as a Pellet Binder on Pellet Durability and Performance of Broiler Chicks or Laying Hens

소나무 수피 알칼리성 아황산염-안트라퀴논 증해폐액이 사료결착제로서 펠렛 내구성과 가금의 생산성에 미치는 영향

  • K. S. Ryu (Department of Animal Resources and Biotechnology, Chonbuk National University) ;
  • H. L. Li (Department of Animal Resources and Biotechnology, Chonbuk National University) ;
  • S. P. Mun (Department of Forest Products and Technology, Chonbuk National University) ;
  • H. J. Song (College of Veterinary Medicine, Chonbuk National University)
  • Published : 2001.08.01
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Abstract

Three experiments were conducted to investigate the Pine Bark Spent Liquor (PBSL) inclusion, prepared by alkaline sulfite-anthraquinone cooking, on Pellet durability index (PDI) of practical diets and performance of broiler chicks and laying hens. Fourteen treatments with four replications were assigned for PDI test in Experiment 1. Control, 10% Wheat(W10), 20% Wheat(W20), 0.25, 0.50, 1.00, 2.00 and 3.00% PBSL, 0.1, 0.2% commercial pellet binder A(CPB A) or B(CPB B), W10 plus 0.1% CPB A or B were used for PDI test. PDI was measured by PDI tester (Oriental Motors, Japan). The control diet was based on corn and soybean meal with no wheat or pellet binders inclusion. The PDI of the PBSL or other commercial pellet binder treatments were significantly higher than control groups(P<0.05). It was shown 95.9, 95.9, 95.8, and 95.7 in W10, 0.5% PBSL, 0.2% CPB A or B treatments, respectively. Thus, those treatments were applied to Experiments 2 and 3. In experiment 2, 200 male broiler chicks (Cobb$\times$Cobb) were allocated to the control, W10, PBSL 0.5%, 0.2% CPB A and B with four replications. Starter diets contained 3,169, 3,149 kcal/kg ME and 21% CP, and finisher diets were fed at the level of 3,192, 3,172 kcal/kg ME and 19W% CP. Weight gain, feed intake, feed conversion ratio (FCR) were weekly measured for 5 wk and the number of intestinal anaerobes were examined at the end of experiment. The weight gain of chicks fed PBSL was not significantly greater than control groups, but was significant different compared to that of W10 or 0.2% CPB A treatments (P<0.05). FCR of chicks treated with PBSL or other pellet binders tended to improve compared to that of control.

소나무 수피로부터 alkaline sulfite-anthraquinone cooking을 통하여 생산된 Pine Bark Spent Liquor(PBSL)의 펠렛 내구성(ellet durability index(PDI)과 사료결착재로서 가능성을 구명하기 위하여 육계와 산란계 사료에 첨가·급여하였다. 실험1에서는 실용계 사료인 대조구, 소맥 10%와 (W10), 20% 첨가구(W20), PBSL 0.25, 0.50, 1.00, 2.00, 3.00% 첨가구, 두 종류 시판용 사료결착제 0.1, 0.2%(CPB A와 CPB B), W10+0.1% CPB A or B로 14개 처리구를 4반복으로 하여 펠렛 내구성 조사를 시행하였다. PDI는 PDI tester(Oriental motors, Japan)로 측정하였다. 실험2에서는 1일령 육계수컷 200수를 무첨가구인 대조구외에 실험 1에서 최적으로 판단되는 처리구인 W10, PBSL 0.5%, 0.2% CPB A and B의 5개 처리구를 4반복으로 배치하여 시행하였다. 기초사료는 사육전기에 3,169와 3,149kca./kg ME와 21% CP를 급여하였고, 사육후기에는 3,192와 3,172 kcal/kg ME와 19% CP사료를 급여하였다. 증체량, 사료섭취량, 사료요구율은 주간별로 5주간 측정하였으며 실험 종료시에 장내 혐기적인 미생물 수를 조사하였다. 실험 3에서 24주령 로만 갈색계 450수를 이용하여 처리구는 실험 2와 동일하게 8주간 시행하였다. 처리구당 반복은 18수씩 5반복으로 90수 전체 450수를 이용하였다. 사료는 대상에너지 2,720 kcal/kg와 CP는 18.5%로 하였다. 처리구당 산란율, 난중, 사료섭취량, 사료요구율, 계란의 품질을 주간 별로 조사하였으며, 실험종료시에 혈액의 성상을 조사하였다. 실험 1에서 PBSL 0.5%, W10 0.5%, CPB A, B 0.2% 처리구의 PDI는 95.9, 95.9, 95.8. and 95.7로서 대조구에 비하여 현저하게 높았다.(P<0.05). 그러므로 이러한 결과는 실험2와 3에 적용하였다. 실험 2에서 PBSL 처리구의 증체량은 대조두와 통계적인 차이는 없었지만 W10과 CPB A와는 현저하게 차이가 있었다. (P<0.05). 사료요구율은 PBSL이나 다른 사료결착제 처리구에서 대조구에 비하여 개선되는 경향을 보였다.

Keywords

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