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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

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.

Keywords

Chelate;Cu;Zn;Gizzard erosion;IgG;Broiler

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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