TY JOUR TI INVASIVE DISEASES OF HORSES IN THE TYUMEN REGION KW horses KW gastrophilosis KW parascaridosis KW digestive tract strongylatosis KW setariosis KW trichonematosis KW oxyurosis JO Bulletin of KSAU AU Siben, A.N. AU Nikonov, A.A. AU Petrova, T.A. PY 2015 IS PB Krasnoyarsk State Agrarian University