Tryptophan Stimulates Immune Response in Broiler Chickens Challenged with Infectious Bursal Disease Vaccine

Mozhdeh, Emadi and Jahanshiri, Fatemeh and Kamran, Kaveh and Bejo, Mohd Hair and Ideris, Aini and Alimon, Abdul Razak (2010) Tryptophan Stimulates Immune Response in Broiler Chickens Challenged with Infectious Bursal Disease Vaccine. Journal of Animal and Veterinary Advances, 9 (3). pp. 610-616. ISSN 1680-5593

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Abstract

Infectious bursal disease is still a challenging issue by posing a serious threat to the commercial poultry industry especially due to the emergence of highly Infectious Bursal Disease Virus (IBDV). In the present study, we evaluated the immunomodulatory effects of Tryptophan (Tip) on innate, humoral and cellular immune responses in chickens challenged by oral administration of intermediate plus strain of IBD virus at 28 days of age. A corn-soybean meal based diet containing different levels of Tip (0, 0.10 and 0.20) for the starter, (0, 0.07 and 0.15) for the grower and (0, 0.05 and 0.13) for the finisher has been utilized. In a completely randomized design with three treatments of five replicates each and 10 chickens per replicate, 150 Cobb 500 male broiler chickens from 0-49 days of age were subjected to Tip diet. To measure the innate, cellular and humoral immunity indicators (interferon-alpha, interferon-gamma, immunoglobulin G, respectively) at 27, 35, 42 and 49 days of age, serum samples from each replicate of treatments were collected and subjected to ELISA. The result showed that Trp supplementation in the chickens basal diets significantly increased the serum levels of interferon-alpha at 35, 42 and 49 days of age (p<0.05), interferon-gamma at 27, 35 and 49 days of age (p<0.05) and immunoglobulin G at 27, 35, 42 and 49 days of age (p<0.05). These results strongly suggest that tryptophan plays a vital role in modulation of protective immune response against IBDV.

Item Type:Article
Keyword:Tryptophan, infectious bursal disease virus, immune response, immunity indicators, broiler chicks
Subject:Animal culture
Subject:Poultry
Faculty or Institute:Faculty of Veterinary Medicine
Publisher:Medwell Online
DOI Number:10.3923/javaa.2010.610.616
Altmetrics:http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.3923/javaa.2010.610.616
ID Code:11227
Deposited By: Azizan Arshad
Deposited On:28 Mar 2011 03:02
Last Modified:28 Mar 2011 03:16

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