On day 21 and 42, 6 birds per treatment were randomly selected to measure blood immunoglobulin M (IgM) and immunoglobulin A (IgA), production of reactive oxygen intermediates (ROI) and duodenal secretory IgA.
On 21 and 42, six birds to measure blood sampling. Immuno globulin pm (IgM) and immuno globulin pm (IgA) production of reactive oxygen intermediates (ROI) and intestinal secretory IgA.