Seasonal prevalence of coliforms in some dairy farms at Ismailia Governorate

الملخص EN

The distribution of coliform organisms on three dairy farms at Ismailia governorate was investigated seasonally during the period from November 2006 to November 2007.

Seven hundred and eighty eight mastitis milk samples, five hundred and seven teat end swab and two hundred and fifty seven soil samples were collected.

Bacteriological examination revealed wide dis-attribution of escbericbia coli and klebsiella, and to less extent enterobacter and citrobacter organisms.

The incidence of mastitis with coliform bacteria was higher during summer season.

E.

coli was the most prevalent microorganism among coliform species isolated from mastitis milk in two farms, while in the third farm klebsiella was the most prevalent microorganism.

The highest incidence of coliforms isolated from teat apex were recorded in different sea-sons at the investigated farms (spring, summer and winter seasons).

Soil samples examination revealed that coliform bacteria were isolated in high incidence during winter season in two farms and summer season in the third farm.