The Effect of Vitamins on a Coccidian Infection

The writers have shown in previous publications that a diet deficient in both vitamins B and G has a limiting effect on the number of oocysts eliminated during the process of immunization. Later they proved that this limiting effect is due either wholly or in part to the absence of the thermostable growth factor present in yeast. This factor was called vitamin G, but in view of the general belief of workers in nutrition that vitamin G is a composite, that designation should be construed only in the general sense. The factor has now been shown to be present in wheat germ, grain mixtures, and certain other materials