TY JOUR TI MINERAL SUBSTANCES CONTENT AND ACTIVITY OF ALKALINE PHOSPHATASE ENZYME IN SERUM OF BROILER CHICKENS WHILE APPLYINGP-AMINO-BENZOIC ACID VITAMIN IN THE SPRING AND SUMMER SEASON KW p-amino-benzoic acid KW mineral substances KW alkaline phosphatase KW inorganic phosphorus KW total calcium KW blood serum JO Bulletin of KSAU AU Smolin, S.G. AU Atavina, O.V. PY 2012 IS PB Krasnoyarsk State Agrarian University