00594naa#a2200205#i#450# EN\\bibl\77400 20260220045834.5 1819-4036 20121225b2012####ek#y0engy0150####ca RUS RU CALVES COLIBACILLOSIS IN THE UPPER AMUR REGION Journal article Krasnoyarsk Krasnoyarsk State Agrarian University 2012 4 с. Journal article local . 619: 616. 98. 579.842.11 (571.61) RUS Petrukhin M A Shulga N N Zhelyabovskaya D A sej.kgau.ru