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Effects of thymectomy and bursectomy on the immunoglobulins in growing chickens

, : Effects of thymectomy and bursectomy on the immunoglobulins in growing chickens. Bulletin of the Faculty of Agriculture Tottori University 42: 169-174

Effects of thymectomy and bursectomy on the immunoglobulins were studied in chickens. In the untreated chickens, .gamma.-globulin of embryo was separated into 2 bands, namely, .gamma.1-globulin and .gamma.2-globulin. Concentration of .gamma.2-globulin increased corresponding to the decrease of residual yolk in the embryonic stage, and reached to 0.65 mg/dl on the 4th day after hatching. It became low again in the period from 5 to 10 days of age (0.2 mg/dl), and then once again increased (0.8 mg/dl). Concentration of serum IgG gradually increased after 35 days old. Counts of leucocyte and lymphocyte slightly increased from 10 to 100 days of age. Concentration of .gamma.-globulin and IgG in the bursectomy chickens were similar to those found in untreated chickens. IgG of thymectomy chickens increased significantly. However, .gamma.-globulin and IgG in the chickens ablated both organs decreased at 100 and 150 day of age.

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