Salmonella carrier rate in dairy cattles

Ong-ard Lawhavinit; Kiti Srisuparbh . Faculty of Veterinary Medicine. Dept. of Pathology

Salmonella carrier rate in dairy cattles

1984

Ong-ard Lawhavinit | Kiti Srisuparbh (Kasetsart Univ., Bangkok (Thailand). Faculty of Veterinary Medicine. Dept. of Pathology)

It has been well realized that Salmonella sp. are important causes of infectious enteritis in various animal species and man. The infected animal exhibited signs of severe diarrhea, prostration and sometimes abortion. In man, food-borne salmonellosis caused by several species of Salmonella has been frequently reported due to consuming of contaminated foods such as meat milk and their products, and water. Individual recovered from infection commonly became carrier which may further transmit the disease. The objective of this study was to identify Salmonella carrier rate of dairy cattle in Nong-Po Dairy Cooperative, Rachaburi Province. A total of 222 fecal samples were collected from dairy-cattle and were examined for Salmonella sp. by culture and identified according to standard conventional methods and serotyped by slide agglutination test using referenced specific group and serotypes hyperimmune sera. Five fecal samples (2.25 %) were positive for Salmonella sp. The species isolated were Salmonella 17:g (Sub genus II), S. wetevreden, S. tennessee and S. welikade. These Salmonella sp. were most sensitive to Chloramphinicol, Gentamycin and Kanamycin. The Salmonella carriers in dairy cattle found in this study indicated the importance of this agent due to its rapid spread, therefore high attention should be paid on hygienic management and public health cares to prevent broader spread of this infection.

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