Response of Feeding Supplemental Choline Chloride on Immune Response of Broiler Chickens Fed Diets Containing Different Levels of Methionine
Rupjyoti Hazarika Chandra Deo M. A. Wani Sajad A. Sheikh
Vol 8(8), 151-157
An experiment was conducted to evaluate the response of feeding different levels of supplemental choline on Cell Mediated Immune Response (CMI), Humoral Immune Response (HI) and weight of different immune organs of broiler chickens fed on diets containing different levels of methionine. A six weeks (0-6wks) feeding trial was conducted involving three levels of methionine (100%, 90% and 80% of (NRC, 1994) each with three levels of choline (100%, 110% and 120% of (NRC,1994) through 3x3 factorial experiments. Day old broiler chicks (n=360) were distributed randomly in to 45 groups of 8 chicks each. Each test diet was offered ad libitum to five replicated groups of 8 chicks each, which were housed in battery brooders cages with uniform managemental condition. At 21st days of experiment CMI, HI was assessed and immune organs weight was assessed at 21 and 42 days of age. Results indicated that supplementation of choline to different diets that are adequate and deficient in methionine had no significant effect on CMI and HI responses. Significant (P<0.01) reduce in the weight of bursa, spleen and thymus was observed on 21st day and 42 day of age as methionine levels was decreased in diets. With choline supplementation, the weight of bursa (P<0.01) and thymus (P<0.05) was increased significantly on 21st day of age. Based on the result, it could be concluded that methionine and choline content in diet had significant effect on immune organs weight in broiler chickens.
Keywords : Choline Immunity Methionine
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