• 1 January 1976
    • journal article
    • research article
    • Vol. 31  (3) , 475-480
Abstract
In an examination of the immunoglobulins [Ig] of the small intestine of calves, IgG1 was the major Ig in the secretions, and IgA was present in smaller amounts. Immunohistochemical studies showed few IgA containing plasma cells, but many cells that stained with [pig] anti-IgG antiserum. Histological evidence of transport of IgG1 across the crypt epithelial cell was found. Studies with 125I-labeled IgG1 indicated that a significant proportion of IgG1 in the intestine originated in serum.