Prevalence of salmonella spp. in ducks in Cu Kuin district, Dak Lak province
The study was conducted to assess Salmonella spp. positive proportions by seasons, breeds, ages and fecal statusamongst ducks raising in Cu Kuin district, Dak Lak province. The total of 300 fecal samples were collected from large duck breeding farms in Cu Kuin to examine positive rates of Salmonella spp. Detection of Salmonella spp. was bassed on traditional culture methods to identify suspect colonies through traditional biochemical reactions. The results showed that the Salmonella positive rate in raining season was higher than in dry season, 10.33% and 5.33%, respectively (P < 0.05%). There was no differences in the Salmonella spp. detection rate amongst duck breeds and ages. The proportion of Salmonella spp. in duck fecal samples under 1 months of age 4.33%, 1 – 2 months of age 5.33%, above 2 – 3 months of age 3.33% and over 3 months of age 2.67%. There was no detection of Salmonellaspp. positive rate on normal fecal samples, in which all of the slurry and liquid fecal samples showed positive results of Salmonella spp., 9% and 6.67%, respectively (P < 0.05%). The results indicated that the infectious rate of Salmonella spp. was affected by seasons and fecal status, but this was not impacted by breeds and ages amongst ducks.
