Effects of Calcium, Phosphorus and Zinc in Wheat-Based Diets on Broiler Chickens’ Performance, Immunity and Bone Parameters

Authors

  • A. Khatibjoo Department of Animal Science, University of Ilam, Ilam, Iran
  • F. Fattahnia Department of Animal Science, University of Ilam, Ilam, Iran
  • H. Souri Department of Animal Science, University of Ilam, Ilam, Iran
  • K. Taherpoor Department of Animal Science, University of Ilam, Ilam, Iran
  • M. Askari Department of Animal Science, University of Ilam, Ilam, Iran
Abstract:

An experiment was conducted to investigate the effect of zinc (Zn) supplementation and different concentrations of calcium (Ca) and phosphorus (P) in wheat-based diets on the performance, immune responses and bone parameters of broiler chickens. A randomized complete block design with factorial arrangement was used (three concentrations of Zn supplementation×two concentrations of dietary Ca-P), 300 day-old broilers were assigned to six dietary treatments with five replicates of ten birds. Dietary treatments were the basal diet (control; TRT1), control plus 50 ppm Zn (TRT2), control plus 70 ppm Zn (TRT3), low Ca-P diet (0.60 to 0.30%; TRT4), low Ca-P diet plus 50 ppm Zn (TRT5) and low Ca-P diet plus 50 ppm Zn (TRT6). Ca and P in the control diet were 0.90 and 0.45% in the grower phase and 0.85 and 0.42% in the finisher phase. Changes in dietary Ca-P had no effect on body weight gain (BWG), feed intake (FI), feed conversion ratio (FCR) or serum Ca and P concentrations (P>0.05) whereas Zn supplementation increased FI (P

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Journal title

volume 5  issue 3

pages  723- 730

publication date 2015-09-01

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