Serum Gamma Globulin and Trypanosoma cruzi Agglutinin in Embryonic, "Normal'"and Germ-Free Chickens.

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Abstract
Gamma globulin content of sera from developing embryos and from normal and germ-free chickens of different ages was studied by electrophoresis. It was found that low levels of gamma globulin coincided with low T. cruzi agglutinating activity in embryonic, 4-week-old "normal" and adult germ-free chickens. Newly-hatched "normal" and normal adult birds showed high gamma globulin levels corresponding to high agglutinin indeces. These results strongly suggest that a close correlation exist between serum gamma globulin levels and the antibody.

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