Journal of Animal Science and Technology

Korean Society of Animal Sciences and Technology (한국축산학회)
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Effects of Cu and Zn-Methionine Chelates Supplementation on the Performance of Broiler Chickens

사료 內 Cu 및 Zn-Methionine Chelates 첨가가 육계의 생산성에 미치는 영향

  • Hong, S.J. (Department of Animal Science, College of Industrial Science, Chung-Ang University) ;
  • Lim, H.S. (Department of Animal Science, College of Industrial Science, Chung-Ang University) ;
  • Paik, I.K. (Department of Animal Science, College of Industrial Science, Chung-Ang University)
  • 홍성진 (중앙대학교 산업과학대학 동물자원과학과) ;
  • 임희석 (중앙대학교 산업과학대학 동물자원과학과) ;
  • 백인기 (중앙대학교 산업과학대학 동물자원과학과)
  • Published : 2002.08.31
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Abstract

An experiment was conducted to investigate the effects of supplemental copper or/and zinc methionine chelates(Cu-Met or/and Zn-Met) on the performance, nutrient digestibility, serum IgG level, gizzard erosion, and the contents of Cu and Zn in liver and excreta of broiler chickens. One thousand d-old broiler chickens (Ross$^{(R)}$) were assigned to 4 treatments: control, 100 ppm Cu in methionine chelate(Cu-Met), 100 ppm Zn in methionine chelate(Zn-Met) and 100 ppm Cu plus 100 ppm Zn in methionine chelate(Cu-Zn-Met). Each treatment had five replications of 50 (25 male + 25 female) birds each. Average weight gains of chicks fed chelated Cu or/and Zn were significantly higher than that of chicks fed the control (P<0.05). Moreover, feed conversion rates of chicks were better in the chicks fed chelated Cu or/and Zn than in the chicks fed the control (P<0.05). The birds fed the chelated Cu and Zn(Cu-Zn-Met) tended to perform the best growth rate and feed conversion rate. Nutrient digestibilities were not affected by the dietary treatments. Serum IgG level of chicks fed Cu-Zn-Met was significantly higher than that of chicks fed the control (P<0.05). Gizzard erosion index was not significantly different among the treatments. The contents of Cu and Zn in liver were not significantly affected by the dietary treatments. The excreta contents of Cu or/and Zn were significantly high in the birds fed supplementary Cu or/and Zn. It was concluded that dietary supplementation of Cu or/and Zn in methionine chelated form improved growth and feed conversion efficiency of broilers.

Methionine chelate 형태로 Cu 및 Zn의 첨가가 육계의 생산성과 영양소 이용률, 혈청 IgG 수준, 근위의 손상정도(gizzard erosion index) 그리고 간과 배설물의 Cu와 Zn 함량에 미치는 영향을 알아보기 위해 갓 부화한 1,000수의 Ross$^{(R)}$ 병아리를 4처리 5반복, 반복당 50수(암수 각각 25수씩)를 배치하여 5주간 사양시험을 실시하였다. 시험사료는 대조구 사료에 Cu와 Zn를 methionine chelate 형태로 100 ppm씩 단독 또는 혼합첨가하여 만들었다. 증체량은 chelate 첨가구들 모두 대조구 보다 높았고(P<0.05), 사료요구량은 chelate 첨가구들이 대조구 보다 낮았다(P<0.05). Cu와 Zn를 혼합하여 첨가한 처리구의 증체량과 사료효율은 Cu와 Zn를 단독 첨가한 처리구들보다 높은 경향을 나타냈다. 영양소 이용률은 Cu 및 Zn chelate 첨가에 의해 유의한 영향을 받지 않았다. 혈청 IgG 농도는 Cu와 Zn chelate 혼합처리구가 대조구에 비해 유의하게 높았으나(P< 0.05), 근위 궤양 정도는 처리에 따른 차이가 없었다. 간과 배설물 내 Cu 및 Zn 함량은 사료에서 이들 광물질의 함량에 의해 영향을 받았다(P<0.05). 결론적으로 Cu와 Zn chelate 단독 또는 혼합하여 첨가시 육계의 증체량과 사료효율을 개선시키고 혈청 IgG 농도를 증가시키며 간 내 Cu와 Zn 수준은 유의한 영향을 받지 않으나 분 내 Cu와 Zn의 함량은 증가시키는 것으로 나타났다.

Keywords

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  1. Effects of Copper and Zinc Supplementation on Growth Performance, Nutrient Digestibility, Meat and Carcass Characteristics in Finishing Pigs vol.27, pp.3, 2007, https://doi.org/10.5851/kosfa.2007.27.3.284
  2. Effects of Copper and Zinc Sources on Growth Performance, Nutrient Digestibility, Carcass Traits and Meat Characteristics in Finishing Pigs vol.28, pp.1, 2008, https://doi.org/10.5851/kosfa.2008.28.1.27
  3. Effects of supplemental copper-methionine chelate and copper-soy proteinate on the performance, blood parameters, liver mineral content, and intestinal microflora of broiler chickens vol.20, pp.1, 2011, https://doi.org/10.3382/japr.2010-00177
  4. The effect of feed supplementation with a copper-glycine chelate and copper sulphate on selected humoral and cell-mediated immune parameters, plasma superoxide dismutase activity, ceruloplasmin and cytokine concentration in broiler chickens pp.09312439, 2017, https://doi.org/10.1111/jpn.12750