[Amino acids and their metabolites in Eimeria tenella (Coccidiida) oocysts]

The amino acid composition of protein in the oocysts of Eimeria tenella has been studied in detail by using the new method of purification of the coccidial oocysts. 35 amino acids and their metabolites have been established for the first time at the exogenous stages of development of E. tenella. The oocyst sporulation is noted to be followed by quantitative changes of the majority of free amino acids and their metabolites.