[Change in the amino acid makeup in the muscle and liver tissues of broiler chicks with coccidiosis (Coccidiida)].

Broiler 7-week old chicks were infected with E. tenella (150 000 oocysts). The contents of aminoacids of muscular tissues of femur and liver as well as combined aminoacids of femoral muscles were investigated. It has been established that the total amount of aminoacids of muscular tissues increases on account of free aminoacids while the contents of combined aminoacids decreases. In the liver of infected chicks there was observed an increase of alanine and a decrease of histidine, arginine and of total quantity of nonsubstituted aminoacids. Coccidial infection causes pathological changes in the organism of birds thus reducing their food value.