Proceedings of the Korea Society of Poultry Science Conference (한국가금학회:학술대회논문집)

The Korean Society of Poultry Science (한국가금학회)
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Exploiting the Maximum Productive Potential of Spent laying Hens with Different Metabolizable Energy and Protein levels after Induced Molting

  • Akram M (Department of Poultry Husbandry, University of Agriculture, Pakistan) ;
  • Park, J. H. (Department of Animal Resources and Biotechnology, Chonbuk National University Research Center for Industrial Development of Biofood Materials, Chonbuk National University) ;
  • M. S. Ryu (Department of Animal Resources and Biotechnology, Chonbuk National University Research Center for Industrial Development of Biofood Materials, Chonbuk National University) ;
  • W. J. Shin (Department of Animal Resources and Biotechnology, Chonbuk National University Research Center for Industrial Development of Biofood Materials, Chonbuk National University) ;
  • K. S. Ryu (Department of Animal Resources and Biotechnology, Chonbuk National University Research Center for Industrial Development of Biofood Materials, Chonbuk National University)
  • Published : 2002.11.01
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Abstract

This experiment was conducted to investigate the influence of different dietary ME and CP on post-molt performance of spent laying hens. Four hundred and thirty two, ISA brown after molt induction were fed 6 experimental diets containing 3 ME(2,750, 2,800, 2,850 kcal/kg) and 2 CP(15, 17%) levels in factorial design. The influence of ME and CP were measured on body weight, egg production, egg weight and feed intake throughout 24 weeks of production. Egg mass and FCR were calculated for the entire experimental period body weight remained less in hens receiving 2,800 kcal/kg. ME and showed the highest egg Production coupled with 15% CP. Feed intake decreased with the increasing level of ME and CP. As the results of this experiment, 2,800 kcal/kg ME can be used to maintain the low body weight and to obtain higher egg production with 15% CP in induced molting hens.

본 실험은 산란노계에서 강제환우 후에 단백질과 에너지수준이 다른 사료를 급여시에 생산성에 미치는 영향을 구명하고자 실행하였다. 76주령 이사브라운 노계를 강제환우후에 2수준의 단백질(15,17%)과 3수준의 대사에너지(2,750, 2,800, 2,850kca1/kg)를 2$\times$3요인 시험으로 처리구당 72수, 반복당 18수, 전체 432수를 배치하였다. 조사항목은 체중의 변화, 산란율, 난중, 사료섭취량, 사료요구율을 24주간 조사하였다. 체중은 2,800 kca1/kg ME 처리구에서 낮은 경향을 보였으며 이러한 처리구의 단백질 수준이 15%일 때 산란율이 가장 높게 나타났다. 사료섭취량은 사료의 대사에너지와 단백질 수준이 높아질수록 감소되었다. 본 실험의 결과 2,800 kca1/kg 대사에너지 급여구에서 15%의 단백질이 함유된 사료를 급여시에 체중의 변화가 적었으며, 산란율이 가장 높게 나타났다.

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