TY JOUR TI FEATURES OF PATHOLOGICAL CHANGES OF ORGANS AND TISSUES OF LAYING HENS IN THE PATHOLOGY OF THE REPRODUCTIVE SYSTEM KW laying hen KW reproductive system KW ovaritis KW salpingitis KW pathological anatomy KW pathomor- fological changes JO Bulletin of KSAU AU Vakhrusheva, T.I. PY 2015 IS PB Krasnoyarsk State Agrarian University