TY JOUR TI CILIATES IN THE TOXICITY ASSESSMENT OF THE FORAGE CROP SEED MATERIAL KW Paramecium caudatum KW ciliates KW toxicity KW biotesting JO Bulletin of KSAU AU Shadrin, I.A. AU Avetisyan, A.T. PY 2015 IS PB Krasnoyarsk State Agrarian University