PREVALENCE OF SALMONELLAE IN APPARENT HEALTHY AND DIARRHEIC CATTLE

Document Type : Original Article

Authors

1 Department of Microbiology, Faculty of Veterinary Medicine, Zagazig University

2 Animal Health Research Institute, Dokki, Giza.

3 Bacteriology. Mycology and Immunology Department. Faculty of Veterinary Medicine, Kafrelsheikh University.

4 Branch Manger of Alborg-Lab.

Abstract

Salmonella enterica in production animals is predominantly a public health hazard. However certain serovars can cause clinical disease in animals and mostly young animals are at risk. Bacteriological examination of 640 faecal  samples collected from apparent healthy (250) and diarrhoeic cattle (390) for the presence of Salmonella organisms revealed that isolation of 12 Salmonella isolates with an overall incidence 1.87 %.Four isolates were recovered from apparent healthy cattle  with a percentage rate 1.6 %, while 8 isolates were recovered from diarrhoeic cattle with a percentage rate 2.05%. Bacteriological examination of faecal samples taken from the cow calves (140) and buffalo calves (115) suffering from diarrhea revealed the isolation of Salmonella organisms with an incidence 3.6% and 1.7% respectively.
Salmonella were isolated from diarrhoeic cow with an incidence 1.5% while no Salmonella organisms could be isolated from diarrhoeic buffalo. Regarding the healthy cattle, Salmonella organisms were recovered from cow and buffalo with an incidence 2.2% and 1.1% respectively, while it was isolated from cow calves with an incidence 2%.
It was noticed that the highest percentage rate for Salmonella recovery was in diarrhoeic cow calves followed by healthy cow.
Serological identification of Salmonella isolates revealed that the most prevalent serovers were  S. Typhimrium(2)& S.Belgdam(2) and S.Lomita(2).Followed by S.Larochelle, S.Virchow, S.Infantis, S.Derpy &S.Anatum and S.Berzany one isolate for each.

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