Journal of Animal Production, Print ISSN: 2008-6776., Online ISSN: 2382-994X

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Investigation of performance and immune response of broiler chickens fed diet containing butyric acid and L-carnitine supplement

Document Type : Research Paper

Authors

1 M.Sc. Student, Department of Animal Science, Faculty of Agriculture, University of Ilam, Iran

2 Assistant Professors, Department of Animal Science, Faculty of Agriculture, University of Ilam, Iran

Abstract

Effect of L-carnitine and butyric acid on the performance and immune responses of 192 broiler chickens (Ross 308) was investigated with three levels of L-carnitine (zero, 125 and 250 mg/kg) and two levels of butyric acid (2 g/kg) in a 2×3 factorial arrangement based on randomized complete block design with 6 dietary treatments, four replicates and eight birds per each. Broilers fed basal diet plus feed additives (L-carnitine and butyric acid) did not have significant differences on feed intake, body weight gain and feed conversion ratio when compred to control group. Broilers fed diets containing additives had higher blood lymphocyte count than control diet fed birds (P<0.05). Primary IgG tiitter (31d) against SRBC in broilers fed diet containing 125 mg/kg L-carnitine was higher than that of the control birds (P<0.05). Skin thickness in response to PHA in broielrs fed diet containing 250 mg/kg L-carnitine alone and 125 and 250 mg/kg L-carnitine in combination with butyric acid was lower than that of control group (P<0.05). It was concluded that addition of 125 mg/kg L-carnitine and two g/kg butyric acid did not influenced broiler chicken performance while improved their immune response.

Keywords

References
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Journal of Animal Production, Print ISSN: 2008-6776., Online ISSN: 2382-994X
Volume 17, Issue 2 - Serial Number 2
Autumn & Winter
October 2015
Pages 269-279
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