Korean Journal of Poultry Science (한국가금학회지)

The Korean Society of Poultry Science (한국가금학회)
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Effects of Supplemental Humic Substances on Egg Production and Quality in Laying Hens

Humic Substances의 급여가 산란계의 산란율과 난 특성에 미치는 영향

  • Wang, Q. (Department of Animal Resource & Science, Dankook University) ;
  • Yoo, J.S. (Department of Animal Resource & Science, Dankook University) ;
  • Chen, Y.J. (Department of Animal Resource & Science, Dankook University) ;
  • Kim, H.J. (Department of Animal Resource & Science, Dankook University) ;
  • Cho, J.H. (Department of Animal Resource & Science, Dankook University) ;
  • Min, B.J. (Department of Animal Resource & Science, Dankook University) ;
  • Park, B.C. (CJ Feed Co. Ltd.) ;
  • Kim, I.H. (Department of Animal Resource & Science, Dankook University)
  • 왕기 (단국대학교 동물자원과학과) ;
  • 유종상 (단국대학교 동물자원과학과) ;
  • 진영걸 (단국대학교 동물자원과학과) ;
  • 김해진 (단국대학교 동물자원과학과) ;
  • 조진호 (단국대학교 동물자원과학과) ;
  • 민병준 (단국대학교 동물자원과학과) ;
  • 박병철 (㈜CJ사료) ;
  • 김인호 (단국대학교 동물자원과학과)
  • Published : 2006.12.30
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Abstract

The effects of dietary humic substances (HS) on egg Production and egg Quality were studied using 252(55-wk old) ISA brown laying hens. laying were divided into 21 groups of 12 hens each and seven groups (experimental units) were assigned to 1) CON (basal diet), 2) HS5 (basal diet 4- 5% humic substances) or 3) HS10 (basal diet +10% humic substances) in a completely randomized block design. Hens had free access to diets and water fur 6 wk. Egg Production and egg quality were monitored over the 6-wk Period. Results showed that 10% dietary HS decreased egg Production and yolk diameter (P<0.05) compared to CON. Egg weight and yolk cole. were improved (P<0.05) in HS10 compared to CON. Egg shell breaking strength was increased significantly (P<0.05) when hens were fed HS5 diet compared to the others. There were no effects of treatments on egg shell thickness, yolk index, albumen height and Haugh nit. The results suggest that the dietary supplementation of HS at 5% or 10% decreases egg Production, but HS at 5% can increase egg shell breaking strength. Hens fed 10% HS could increase egg weight and yolk color and decrease yolk diameter.

본 연구는 humic substances의 급여가 산란계의 생산성과 난 특성에 미치는 영향을 알아보고자 실시하였다. 55주령 ISA brown 갈색계 252수를 공시하였고, 6주간 시험을 실시하였다. 처리구는 1) CON (basal diet),2) HS5 (basal diet added humic substances 5%), and 3) HS10 (basal diet added humic sudstances 10%)으로 처리구당 7반복 반복당 12수씩 완전 임의 배치하였다. 전 시험 기간 동안 hmic substances을 10% 첨가한 처리구는 난 생산성과 난황 직경이 대조구와 비교하여 유의적으로 감소하였다(P<0.05). 난황색은 HS10 처리구가 CON처리구와 비교하여 높게 나타났다(P<0.05). 개시시 난중은 처리구간에 차이가 없었다(P<0.05). 난각 강도에서는 HS5 처리구가 다른 처리구들과 비교하여 유의적으로 높게 나타났다(P<0.05). 결론적으로, 산란계 사료내 HS 5% 또는 10%의 첨가는 난황색 및 난각 강도를 향상시킬 수 있을 것으로 사료된다.

Keywords

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