Effect of supplemental methionine, choline and their combinations on the performance and immune response of broilers

1. A study was conducted with broilers to find out the effect of addition of methionine (0.0, 1.5, 3.0 and 4.5 g/kg) and choline (0.0, 1000 and 2000 mg/kg) to a basal diet containing crude protein, 221 g/kg, ME, 12.25 MJ/kg, methionine, 3.6 g/kg and choline, 1300 mg/kg. 2. Supplemental levels of met...

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Bibliographic Details
Published inBritish poultry science Vol. 41; no. 1; pp. 83 - 88
Main Authors Swain, B. K., Johri, T.S.
Format Journal Article
LanguageEnglish
Published England Taylor & Francis Group 01.03.2000
Taylor & Francis Ltd
Subjects
Animal Feed
Animals
Antibodies, Viral - blood
Antibody Formation
Body Weight
Cell Migration Inhibition
Chickens - growth & development
Chickens - immunology
Chickens - metabolism
Choline - administration & dosage
Choline - metabolism
Choline - physiology
Dietary Supplements
Enzyme-Linked Immunosorbent Assay - veterinary
Hemagglutination Inhibition Tests - veterinary
Immunity, Cellular
Male
Methionine - administration & dosage
Methionine - metabolism
Methionine - physiology
Newcastle Disease - immunology
Newcastle Disease - prevention & control
Newcastle disease virus - immunology
Random Allocation
Vaccination - veterinary
Weight Gain
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Summary:1. A study was conducted with broilers to find out the effect of addition of methionine (0.0, 1.5, 3.0 and 4.5 g/kg) and choline (0.0, 1000 and 2000 mg/kg) to a basal diet containing crude protein, 221 g/kg, ME, 12.25 MJ/kg, methionine, 3.6 g/kg and choline, 1300 mg/kg. 2. Supplemental levels of methionine and choline were found to be ineffective in improving the growth, food consumption and food conversion efficiency of broilers. 3. However, a higher value for leucocyte migration inhibition was observed in chicks fed on the diet containing 6.5 g/kg methionine and 1300 mg/kg choline, indicating a significantly improved cellular immune response. 4. HI test and ELISA indicated enhanced antibody titres in chicks receiving 3.0 g/kg methionine and 3300 mg/kg choline, showing a significantly better humoral immune response. 5. Methionine and choline should be supplemented at levels higher than the recommended level of BIS for better health and production in chicks.
ISSN:0007-1668
1466-1799
DOI:10.1080/00071660086457