Genetic Differentiation and Incidence of Salmonellae In Cattle, Sheep and Goats

Salmonella infections in farm animals have been recorded in mostcountries of the world. Diarrhoea and deaths in farm animals is the maincause of economic losses in the world.Therefore the aim of this work was planned to discuss theisolation and identification of the causative agent. Serological typing ofisolated Salmonella strains. Use ofPCR technique to confirm the isolates,application of RAPD-PCR to detect variation between species anddetermination of antibiogram of Salmonella isolates.A total of 770 rectal swabs were collected from farmanimals,90,80,100 from apparently healthy cattle, sheep and goatsrespectively and 150,140 and 210 from diarrhoeic cattle, sheep and goats.Bacteriological finding of examined cases from apparentlyhealthy cattle, sheep and goats revealed that 5,3 and 2 out of 90,80 and100 faecal samples were bacteriologically positive for Salmonella withincidence of 5.6%, 3.75% and 2% respectively, while, the examineddiarrhoeic cattle, sheep and goats revealed that 22, 13 and 16 out of 150,140 and 210 faecal samples were Salmonella positive with an incidenceof 14.7% , 9.2% and 7.6% respectively.