The Modulating Effect of [Beta]-1, 3/1, 6-Glucan Supplementation in the Diet on Performance and Immunological Responses of Broiler Chickens * (Report) - Asian - Australasian Journal of Animal Sciences

The Modulating Effect of [Beta]-1, 3/1, 6-Glucan Supplementation in the Diet on Performance and Immunological Responses of Broiler Chickens * (Report)

By Asian - Australasian Journal of Animal Sciences

  • Release Date - Published: 2008-02-01
  • Book Genre: Industries & Professions
  • Author: Asian - Australasian Journal of Animal Sciences
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The Modulating Effect of [Beta]-1, 3/1, 6-Glucan Supplementation in the Diet on Performance and Immunological Responses of Broiler Chickens * (Report) Asian - Australasian Journal of Animal Sciences read online review & book description:

ABSTRACT : The object of this trial was to investigate the effect of dietary [beta]-1,3/1,6-glucan supplementation on the performance and immunological response of broiler chickens. Two hundred and forty 1-day old male broilers (39 [+ or -]1 g) were separated into six treatments which were given six different feeds containing 0 (control), 25, 50, 75, 100 and 125 mg/kg dietary [beta]-1,3/1,6-glucan supplementation. On days 21 and 42, body weight gain, feed consumption and feed conversation rate were recorded as measures of growth performance. The levels of key cytokines in the immuno-regulating pathway: interleukin-1 (IL-1), interleukin-2 (IL-2), interferon [gamma] (IFN-[gamma]), tumor necrosis factor [alpha] (TNF-[alpha]), and the concentrations of signal molecules: peripheral blood plasma globulin, serum Immunoglobulin G (IgG) and intestinal secretary Immunoglobulin A (sIgA), were measured as indices of the immune response to determine suitable levels of dietary [beta]-1,3/1,6-glucan supplementation. The results indicated that performance was elevated quadratically with dietary [beta]-1,3/1,6-glucan supplementation. Maximal growth performance and an enhanced immunological response were obtained at a supplemented level of 50 mg/kg. (Key Words : [beta]-1,3/1,6- glucan, Cytokines, Immunoglobulin, Immunomodulating, Broilers) INTRODUCTION

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