Author(s): Md Masuder Rahman
To evaluate the microbiological quality of shrimp, samples of galda (Macrobrachium rosenbergii) were collected from seven different places (four natural habitats and three artificial habitats) of Khulna district and their coliform load was determined. All of the samples contained relatively large number (1100 to ≥2400) of coliform bacteria. Samples of six habitats were found to be contaminated both with faecal and non-faecal coliform organism while samples from one habitat were found to contain only coliform bacteria of non-faecal origin. However, the presence of faecal coliform was relatively very high in number in the samples that were collected from the natural habitats while the presence of faecal coliform was very low in the samples that were collected from the different artificial habitats. The presence of faecal coliform indicated that there is a possibility of the presence of pathogenic microorganisms. Based on the results reported herein, it was concluded that the shrimp of all locations of the Khulna district were unsafe before processing.