Abstract
Escherichia coli (E. coli) is the main pathogen involved in the etiology of Bovine Mastitis from the environmental origin. Mammary infections by E. coli exhibit a wide range of clinical signs causing only milk anormalites (score 1), milk and inflammatory changes of the mammary gland (score 2) and significant systemic signs (score 3). E. coli belongs to the normal gut microflora of humans …