Poultry Science Meeting 2011 , 2011-07-16

Title : ( Immune response of laying hens fed diets containing cottonseed meal treated with sodium bentonate )

Authors: Mohammad Aami Azghadi , Hassan Kermanshahi , Abolghasem golian , Abdol Mansour Tahmasbi , Ali Gilani ,

Citation: BibTeX | EndNote

The objective of this study was to evaluate the effect of cottonseed meal (CSM) treated with sodium bentonite (SB) on humoral immune response of laying hens. Nine mash diets in a CRD experiment with a 3 × 3 factorial arrangement with 4 replicates of 8 birds each were fed to 288 Hy-Line W-36 hens from 51 to 63 weeks of age. Nine isocaloric and isonitrogenous diets were comprised 3 levels of SB (0, 1 and 2%) and 3 levels of CSM (0, 10 and 20%). Sheep red blood cells (SRBC) were used as antigen to quantify the antibody response. Two birds per replicate were injected with SRBC (one ml of 3% suspension in phosphate- buffered saline in breast muscle of each hen) at 60 week of age. After 7 and 14 d of SRBC inoculation, blood samples were obtained from the brachial vein of each hen, and total anti-SRBC, IgG and IgM titers were determined. There was not a significant effect of SB, CSM or their interaction on total antibody response against SRBC inoculation, but IgG was significantly increased in birds fed diet contained 20% CSM at 7 d (7.62 vs. 8.45) and 2% SB at 14 d (2.79 vs. 3.66) after injection of SRBC. The interaction effect of SB and CSM on IgG was significantly different among dietary treatments and birds fed diet with 2% SB and 20% CSM had the higher titer as compared with control group (5.0 vs. 2.5) at 14 d after injection of SRBC. Diet containing 2% SB and 20% CSM significantly decreased hen-day egg production (73 vs. 79%) and daily egg mass (47 vs. 52 g) as compared with control group. High stimulation of humoral immunity and reduction of performance in birds fed diet with 20% CSM and 2% SB indicated that there was a negative correlation between performance criteria, especially egg production and immune response.

Keywords

, humoral immunity, layer, cottonseed meal, sodium
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@inproceedings{paperid:1023643,
author = {Aami Azghadi, Mohammad and Kermanshahi, Hassan and Golian, Abolghasem and Tahmasbi, Abdol Mansour and Gilani, Ali},
title = {Immune response of laying hens fed diets containing cottonseed meal treated with sodium bentonate},
booktitle = {Poultry Science Meeting 2011},
year = {2011},
location = {St. Louis, USA},
keywords = {humoral immunity; layer; cottonseed meal; sodium bentonate},
}

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%0 Conference Proceedings
%T Immune response of laying hens fed diets containing cottonseed meal treated with sodium bentonate
%A Aami Azghadi, Mohammad
%A Kermanshahi, Hassan
%A Golian, Abolghasem
%A Tahmasbi, Abdol Mansour
%A Gilani, Ali
%J Poultry Science Meeting 2011
%D 2011

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