Abstract
Objective: This research work was conducted for isolation of Salmonella spp. from duck and pigeon and assessment of antibiotic sensitivity patterns of the isolated Salmonella spp . Materials and methods: A total of 48 duck samples comprising of liver (n=16) spleen (n=16) and intestinal content (n=16) were collected from 16 ducks (8 sick and 8 dead). Similarly, 42 pigeon samples comprising of liver (n=14), spleen (n=14) and intestinal contents (n=14) were collected from 14 pigeons (7 sick and 7 dead). The samples were collected from the selected Duck and Pigeon farms at three Upazillas (sub-districts) in Dinajpur district, Bangladesh. The samples were subjected for isolation and identification of Salmonella spp. following standard bacteriological examinations such as cultural and morphological characteristics, biochemical properties and motility test. Commercially available antibiotic discs were used for the assesment of antibiotic resistant patterns by disc diffusion method. Results: Salmonella spp . could be isolated from 39.58% (n=19/48) duck and 28.57% (n=12/42) pigeon samples. The growth of colony with different characteristics in Brilliant Green agar, Nutrient agar, Salmonella-Shigella agar and Mac Conkey agar indicated positive results. Dextrose and mannitol were fermented and in Triple Sugar Iron (TSI) slant media, the isolates produced red color, yellow in butt with slightly black color. Positive result was found in Indole and Methyl Red media. The isolated Salmonella organisms were found to be highly sensitive to Azithromycin, Ciprofloxacin and Levofloxacin. Conclusion: Pigeons and ducks found in the study area may be the carrier of Salmonella spp . The farm should be checked periodically to know the status of Salmonella infection. Further study might be isolation and identification of Salmonella organism with detail genomic analysis and drug resistance. http://doi.org/10.5455/javar.2016.c177
Highlights
A wide variety of Salmonella serovers in different hosts like duck, pigeon remain as significant problem with importance to public health all over the world (Tabaraie et al, 1994)
Both S. pullorum and S. gallinarum were found in chicken which acts as natural host (Snoeyenbos, 1991)
Sample collection: In this study, total 90 field samples were comprised liver, spleen, feces and intestinal contents were aseptically collected from the selected Pigeon and Duck farms of three selective Upazillas in Dinajpur district, Bangladesh for the characterization of salmonellae as per the procedure described in OIE Manual (OIE, 2006) and by Douglas et al (1998)
Summary
A wide variety of Salmonella serovers in different hosts like duck, pigeon remain as significant problem with importance to public health all over the world (Tabaraie et al, 1994). All ages of poultry were infected with Salmonella spp. which produce considerable loss in poultry industry (Habrun et al, 2006) It may be a threat in poultry rearing farm and as a result, sound health of these birds will be affected producing low quality eggs and meat that will lead to poor market value (Molla et al, 2006; Yadav et al, 2006). 10% Salmonella spp. have been isolated and over 2,300 serotypes were identified from poultry (Gast, 1997). Both S. pullorum and S. gallinarum were found in chicken which acts as natural host (Snoeyenbos, 1991). Pigeons may transfer the infectious agents to outdoor domestic poultry and drinking water sources including agricultural crops (Lillehaug et al, 2005)
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