Previous investigators have shown that a liberal supplement of yeast induces higher production of oocysts during an immunizing infection with Eimeria nieschulzi than either certain other supplements or complete lack of supplement. The question arises, however, whether lesser amounts of yeast would result in lower oocyst yields, and conversely, greater amounts in higher yields. Furthermore, because of the seeming association of the substance that produced the conditions requisite for higher oocyst counts with vitamin G, and sometimes B also, it was evident that a study with two strains of yeast differing in comparative content of vitamins B and G would be exceedingly relevant to a fuller understanding of the nature of this substance. These problems prompted this investigation.
Proceedings of the Iowa Academy of Science
©1939 Iowa Academy of Science, Inc.
Waters, Philip C.
"Influence on Oocyst Production of Concentration and Kind of Yeast in Rations of Rats Infected with Eimeria Nieschulzi,"
Proceedings of the Iowa Academy of Science, 46(1), 397-402.
Available at: https://scholarworks.uni.edu/pias/vol46/iss1/121