A survey was conducted (March 2020 to October 2020) on biosecurity practices, disease occurrence and antimicrobial usage of 77 broiler farms from five districts Northern Kerala. Data were collected through a questionnaire field-level diagnostic tests conducted. Biosecurity status varied farm with 97.4 per cent promoted vaccination 61.04 disposed carcasses by burning. However, limitations observ...

Poultry vaccines are widely applied to prevent and control contagious poultry diseases. Their use in poultry production is aimed at avoiding or minimising the emergence of clinical disease at farm level, thus increasing production. Vaccines and vaccination programmes vary broadly in regard to several local factors (e.g. type of production, local pattern of disease, costs and potential losses) a...

BACKGROUND Avian pathogenic Escherichia coli (APEC) causes avian colibacillosis, which results in economic and welfare costs in the poultry industry worldwide. The pathogenesis of avian pathogenic E. coli strains is not well defined. Here, the function of an outer membrane protein encoded by the ireA gene of avian pathogenic E. coli strain DE205B was investigated. RESULTS The ireA gene was di...

Against the background of persistent outbreaks of Fowl typhoid and Colibacillosis in five commercial layer farms in Zaria, Nigeria, this study was conducted to screen rats for Escherichia coli and Salmonella gallinarum in the farms, and to evaluate the susceptibility of the bacterial organisms to ten commonly used antimicrobial drugs in Zaria. A total of 250 rectal swabs of rats comprising Norw...

Pathogenic Escherichia coli strains cause a wide range of extra intestinal infections including urinary tract infection in humans and colibacillosis in poultry. They are classified into uropathogenic E. coli (UPEC) and avian pathogenic E. coli (APEC) with genetic similarities and variations. Their pathogenicity is related to the virulence-encoding genes like sfa</...

Avian colibacillosis, caused by Escherichia coli, is one of the major bacterial diseases in the poultry industry worldwide, and along with salmonellosis, it is the most common avian disease communicable to humans. The organism is a normal inhabitant of the intestinal tract of birds and can survive in a wide range of temperature. Certain strains viz., avian pathogenic E. coli (APEC), however, co...

Colibacillosis is an important disease in the poultry industry which causes serious economic damages. As it is suggested that vaccination is one of the means to control colibacillosis, we tried to investigate the vaccine potential of a ∆aroA derivative of an O78:K80 avian pathogenic Escherichia coli containing increased serum survival gene. 490 chicks were selected as follows: For assessment of...