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Information Journal Paper

Title

EFFECTS OF CALCIUM, PHOSPHORUS AND ZINC IN WHEAT‐BASED DIETS B ON BROILER CHICKENS’ PERFORMANCE, IMMUNITY AND BONE PARAMETERS

Pages

  723-730

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<0.05). The addition of 50 ppm Zn increased serum P concentration (P<0.05) and dietary treatments had no effect on antibody titers against sheep red blood cells (SRBC) (P>0.05). The lowest blood heterophil (H) and the highest lymphocyte (L) percentages and lowest H: L ratio were observed in birds fed with the diet contain-ing a standard Ca-P with 70 ppm Zn supplementation (P<0.05). Dietary treatments had no effect on BONE length, thickness and breaking strength (P>0.05). Tibia and fibula ash decreased by feeding lower Ca-P than the standard diet (P<0.05). It is concluded that low Ca-P diets did not have a detrimental effect on PERFORMANCE or blood and BONE parameters and that Zn supplementation did not improve those parameters when feed was low in Ca-P.

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    APA: Copy

    ASKARI, M., KHATIBJOO, A., TAHERPOOR, K., FATTAHNIA, F., & SOURI, H.. (2015). EFFECTS OF CALCIUM, PHOSPHORUS AND ZINC IN WHEAT?BASED DIETS B ON BROILER CHICKENS’ PERFORMANCE, IMMUNITY AND BONE PARAMETERS. IRANIAN JOURNAL OF APPLIED ANIMAL SCIENCE, 5(3), 723-730. SID. https://sid.ir/paper/679296/en

    Vancouver: Copy

    ASKARI M., KHATIBJOO A., TAHERPOOR K., FATTAHNIA F., SOURI H.. EFFECTS OF CALCIUM, PHOSPHORUS AND ZINC IN WHEAT?BASED DIETS B ON BROILER CHICKENS’ PERFORMANCE, IMMUNITY AND BONE PARAMETERS. IRANIAN JOURNAL OF APPLIED ANIMAL SCIENCE[Internet]. 2015;5(3):723-730. Available from: https://sid.ir/paper/679296/en

    IEEE: Copy

    M. ASKARI, A. KHATIBJOO, K. TAHERPOOR, F. FATTAHNIA, and H. SOURI, “EFFECTS OF CALCIUM, PHOSPHORUS AND ZINC IN WHEAT?BASED DIETS B ON BROILER CHICKENS’ PERFORMANCE, IMMUNITY AND BONE PARAMETERS,” IRANIAN JOURNAL OF APPLIED ANIMAL SCIENCE, vol. 5, no. 3, pp. 723–730, 2015, [Online]. Available: https://sid.ir/paper/679296/en

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