TY JOUR TI THE HISTOLOGICAL AND MORPHOMETRIC CHANGES OF THE HEN OVARYUNDER THE ADAPTOGEN INFLUENCE KW poultry keeping KW hen KW egg production KW egg KW ovary KW hen feeding KW adaptogens JO Bulletin of KSAU AU Borodulina, I.V. PY 2014 IS PB Krasnoyarsk State Agrarian University