Study on prevalence of Salmonella infection in goats

Out of 204 slaughtered goats examined, 35(17.6%) yielded Salmonella. Salmonella could be isolated either from mesenteric lymph nodes (11) or from gall bladder (15) or from both of the organ (9) of the goats examined. A total of 60 Salmonella isolates included 34 from gall bladder (of 24 goats) and 26 from mesenteric lymph node (of 20 goats) samples. On serotyping, 29 isolates were found to be rough strains while 31 could be serotyped in to 17 serovars, viz. one each to S. Paratyphi B var Java, S. Altona, S. Weltevreden, S. Rovaniemi, S. Sarajane, S. Louga, S. I. 52: r: 1, 5; S. I. 1, 3, 19: r: z6; S. I. 3, 19: r: 1, 5; S. I. 28: b: e, n, x and S. I. 6, 7: r: Z6, two each to S. Chicago, S. Czernyring, S. Kirkee, and S. I. 3, 10: z6: -; five to S. Paratyphi B and seven to S. I. 28: b: 1, 2. Of these serovars, S. Czernyring, S. Louga, S. Rovaniemi, S. Kirkee, S. Sarajane, S. Altona have not been reported earlier from India. On the basis of drug resistance, the isolates could be classified into 40 resistotypes. All the isolates were sensitive to imipenem and chloramphenicol, while 70% were resistant to nitrofurantoin. Multiple drug resistance (resistant to >3 drugs) was evident in 51.67% isolates (31) while 13.3% (8) isolates were sensitive to all the drugs evaluated under the study.