Document Detail

Maternal dietary ratio of linoleic acid to alpha-linolenic acid affects the passive immunity of hatching chicks.
MedLine Citation:
PMID:  15615018     Owner:  NLM     Status:  MEDLINE    
The objective of the current study was to examine the effect of dietary ratio of linoleic acid (LA) to alpha-linolenic acid (LNA) on the humoral immune response in laying hens and further on the passive immunity of their progeny. Thirty-two Single Comb White Leghorn laying hens, 24 wk of age, were randomly assigned to 1 of 4 diets that had LA-to-LNA ratios of 0.8, 5.4, 12.5, and 27.7, respectively, by changing the proportions of sunflower and linseed oils. After 5 wk on the experimental diets, hens were immunized intramuscularly with 1 mg of BSA, followed by 2 boosters 2 and 6 wk later. Serum and egg yolk were obtained weekly from 0 to 6 wk following the first injection of BSA. One week after the second booster, fertile eggs were collected and incubated. The sera of 11-d-old embryos and hatchlings were collected. All serum samples were stored at -20 degrees C before analysis. The results showed that dietary LA-to-LNA ratio had no effect on the total IgG and BSA-specific antibody IgG concentrations in the serum or egg yolk of laying hens. Hatchlings from hens fed the diet containing the LA-to-LNA ratio of 12.4 showed lower (P < 0.05) BSA-specific IgG titer in the serum than those from hens given the diet containing LA-to-LNA ratio of 0.8. A lower (P < 0.05) total IgG concentration was observed in hatchlings from hens fed the diet containing LA-to-LNA ratio of 12.4 compared with those from hens fed diets containing 0.8 and 5.4 of LA-to-LNA ratios. It is suggested that the dietary ratio of LA to LNA has no effect on laying hen humoral response but affects the passive immunity of hatching chicks.
Y W Wang; H Sunwoo; G Cherian; J S Sim
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Poultry science     Volume:  83     ISSN:  0032-5791     ISO Abbreviation:  Poult. Sci.     Publication Date:  2004 Dec 
Date Detail:
Created Date:  2004-12-23     Completed Date:  2005-01-11     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0401150     Medline TA:  Poult Sci     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2039-43     Citation Subset:  IM    
Dietetics and Human Nutrition, McGill University, Macdonald Campus, Ste-Anne-de-Bellevue, Quebec, Canada.
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MeSH Terms
Animal Nutritional Physiological Phenomena
Chick Embryo
Chickens / immunology*
Dietary Fats, Unsaturated / administration & dosage*
Dose-Response Relationship, Drug
Immunity, Maternally-Acquired / drug effects*,  immunology
Immunoglobulin G / blood
Linoleic Acid / pharmacology*
Serum Albumin, Bovine / immunology
alpha-Linolenic Acid / pharmacology*
Reg. No./Substance:
0/Dietary Fats, Unsaturated; 0/Immunoglobulin G; 0/Serum Albumin, Bovine; 2197-37-7/Linoleic Acid; 463-40-1/alpha-Linolenic Acid

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