Development of Bronchus-Associaed lymphoid tissue (Balt) following inoculation of dust preparation of Pasteurella Multocida B2 in white rats

Abstract

Twenty clinically healthy white rats (Rattus novegicus ) from type sprague-dawley were equally divided into two groups;group 1 as the control untreated group while group 2 was inoculated with lyophilized crude of Pasteurella multocida B:2 on day-0 and day-14.