BACTERIAL LOAD IN THE FECES OF RABBIT AT DINAJPUR DISTRICT OF BANGLADESH

Abstract

The present study was conducted to identify the bacterial load in feces of rabbit and to identify their effects on growth performance of rabbit of Dinajpur Upazilla, Dinajpur. The samples were analyzed to determine the total viable count, prevalence of gram negative bacteria, Eschrechia coli and Salmonella spp. The rabbit were categorized into three (3) groups namely group A, group B and group C according to their body weight gain at same age and different feeding management. They reared in intensive system. For the determination of bacterial load a total of 30 samples were tested. From this study the result represented that the total viable counts/g feces in group A, group B and group C were 1.2 × 104 , 2.4 × 106 , 3.5 × 107 CFU/g sample respectively, the E. coli counts/g feces in group A, group B and group C were 2.5 × 103 , 5.5 × 105 and 4.5 × 106 CFU/g of sample respectively and Salmonella spp. counts/g sample on group A, group B and group C were 1 × 102 , 2.1 × 102 and 3 × 103 CFU/g feces respectively. The study showed that group C had highest bacterial load 3.5 × 107 CFU/g (7.54 Log 10/g) and average body weight these group rabbits 1 kg. In group A had lowest bacterial load 1.2 × 104 CFU/g sample (4.08 Log10/g) and average body weight these group rabbits 1.5 kg. where the prevalence of E. coli present in 13 sample was 43.33%, group A- 30%, Group B -40% and group- C 60%, and the prevalence of Salmonella spp was present in 7 samples was 23.33%, group A- 10%, Group B- 20% and group C-40%. In conclusion, it is evident that E. coli and Salmonella spp was successfully detected through different bacteriological media and biochemical reaction indicating the isolated organisms were responsible for possible fecal pollution and also a negative effect on growth performance of rabbit reared in research area.