Korean Journal of Poultry Science (한국가금학회지)

The Korean Society of Poultry Science (한국가금학회)
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Effects of Mineral- and Vitamin- Enhanced Supplementation on Egg Production, Egg Quality and Concentration of Calcium and Phosphorus in Serum of Spent Laying Hens

미네랄 및 비타민 강화제의 첨가가 산란노계의 생산성, 계란 품질 및 혈청 내 Ca, P 농도에 미치는 영향

  • Shin, S.O. (Department of Animal Resource & Science, Dankook University) ;
  • Cho, J.H. (Department of Animal Resource & Science, Dankook University) ;
  • Chen, Y.J. (Department of Animal Resource & Science, Dankook University) ;
  • Yoo, J.S. (Department of Animal Resource & Science, Dankook University) ;
  • Kim, H.J. (Department of Animal Resource & Science, Dankook University) ;
  • Wang, Y. (Department of Animal Resource & Science, Dankook University) ;
  • Huang, Y. (Department of Animal Resource & Science, Dankook University) ;
  • Kim, I.H. (Department of Animal Resource & Science, Dankook University)
  • 신승오 (단국대학교 동물자원학과) ;
  • 조진호 (단국대학교 동물자원학과) ;
  • 진영걸 (단국대학교 동물자원학과) ;
  • 유종상 (단국대학교 동물자원학과) ;
  • 김효진 (단국대학교 동물자원학과) ;
  • 왕원 (단국대학교 동물자원학과) ;
  • 황염 (단국대학교 동물자원학과) ;
  • 김인호 (단국대학교 동물자원학과)
  • Published : 2008.03.31
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Abstract

This study was conducted to evaluate the effects of mineral and vitamin-enhanced supplementation on egg production, egg quality and concentrations of calcium and phosphorus in serum of spent laying hens. A total of 240 (72-wk-old) Hyline brown commercial hens were used in the current trial for 4 weeks. Dietary treatments included 1) CON (basal diet), 2) ESS1 (basal diet + Egg shell strengthen 0.1%), 3) ESS2 (basal diet + Egg shell strengthen 0.2%) and 4) FESS (basal diet + Fe egg shell strengthen 0.2%). During the overall period, egg production was increased in CON and ESS2 treatments compared with ESS1 treatment (P<0.05). Egg shell breaking strength and final egg shell thickness were significantly higher in ESS2 treatment than CON and FESS treatments (P<0.05). Egg yolk color index was significantly lower in ESS1 treatment than other treatments (P<0.05). Moreover, Haugh unit was significantly lower in ESS1 and FESS treatments than CON treatment (P<0.05). Mineral- and vitaminenhanced supplementation did not affect either egg shell color or calcium and phosphorus concentration in serum. In conclusion, mineral- and vitamin- enhanced supplementations of laying hens diet are helpful in improving egg shell breaking strength and thickness by supplementation of Egg shell strengthener 0.2%.

본 연구는 산란노계 사료 내 광물질 강화제의 추가적인 공급이 산란노계의 생산성, 계란 품질 및 혈청 내 칼슘, 인 농도에 미치는 영향에 대하여 알아보기 위해 수행하였다. 사양시험은 72주령 Hy-line Brown 240수를 공시하여 4주간 실시하였다. 1) CON(basal diet), 2) ESS1(basal diet + Egg shell strengthener 0.1%), 3) ESS2(basal diet + Egg shell strengthener 0.2%) 및 4) FESS(basal diet + Fe egg shell strengthener 0.2%)로 4개 처리를 하여 처리당 5반복, 반복당 12수씩 완전 임의 배치하였다. 전체 시험 기간 동안 산란율은 대조구 및 ESS2 처리구가 ESS1 처리구와 비교하여 유의적으로 높게 나타났으며(P<0.05), 난각 강도 및 종료시의 난각 두께는 ESS2 처리구가 대조구 및 FESS 처리구보다 유의적으로 높게 나타났다(P<0.05). 계란 품질에서 난황색은 ESS1 처리구가 다른 처리구와 비교하여 유의적으로 가장 낮게 나타났으며(P<0.05), 호우유닛은 ESS1 처리구 및 FESS 처리구가 대조구와 비교하여 유의적으로 낮았다(P<0.05). 미네랄 및 비타민 강화제의 첨가는 혈청 내 Ca 및 P 함량과 난각색에 영향을 미치지 못했다. 결론적으로, 산란노계 사료에 0.2%의 미네랄 및 비타민 강화제를 첨가한 ESS2 처리구는 난각 강도와 두께가 개선되는 효과를 나타내었다.

Keywords

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