DEVELOPING A WAY OF OBTAINING SUPERFICIAL PROTECTIVE ANTIGENES <i>S. DUBLIN</i> AND <i>S. TYPHIMURIUM</i> BY MEANS OF MURIATIC ACID HYDROXYLAMINE AND UREA FOR PREPARATION OF VACCINE COMPONENTS AGAINST THE SALMONELLOSIS OF CATTLE
The article considers the ways of obtaining protective antigenes <i>S. dublin</i> and <i>S. typhimurium</i> with the help of hydroxylamine muriatic acid and urea. The selection of various concentration extractive substances, bacterial cages, inactivating agent allowed obtaining a non-toxic sample for further immunization of animals.