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Table 1 Microbial load (cfu/g) in the export quality shrimp samples

From: Molecular characterization of the virulent microorganisms along with their drug-resistance traits associated with the export quality frozen shrimps in Bangladesh

*Sample no.

Sample fractions

TVB

Total fungi

E. coli

Vibrio spp.

Klebsiella spp.

Aeromonas spp.

Shigella spp.

Staphylococcus spp.

Listeria spp.

Samples 1–3

Head

1.5 × 108

1.8 × 105

1 × 103

2.8 × 102

1.3 × 102

1.4 × 102

2.6 × 102

9.1 × 106

1 × 105

Body

1.5 × 107

5.4 × 104

0

0

0

1.3 × 102

0

4.1 × 105

0

Tail

7.6 × 106

4.1 × 105

0

0

0

0

0

2 × 106

5.3 × 104

Samples 4–9

Head

2.1 × 107

1.1 × 104

0

0

0

4.7 × 102

0

1.5 × 104

1 × 102

Body

1.3 × 106

1.2 × 104

0

0

0

0

0

2.3 × 103

1.1 × 103

Tail

2.8 × 106

1.5 × 104

0

0

0

0

0

2 × 102

2.1 × 103

Samples 10–15

Head

1.2 × 108

1.8 × 105

1.2 × 102

1.3 × 102

1.1 × 102

3.2 × 102

2.6 × 102

3.4 × 104

1 × 103

Body

1.1 × 107

5.4 × 104

1 × 102

0

0

1.2 × 102

0

2.2 × 103

0

Tail

1.3 × 106

4.1 × 105

0

0

0

0

0

2.3 × 104

1.3 × 103

Samples 16–21

Head

3.4 × 107

1.8 × 105

0

0

0

0

0

2.6 × 105

1 × 102

Body

2.5 × 106

5.4 × 104

0

0

0

0

0

3.3 × 105

1.3 × 102

Tail

1.4 × 106

4.1 × 105

0

0

0

0

0

1.2 × 105

4.3 × 102

Samples 22–27

Head

2.5 × 108

1.8 × 105

1 × 102

1.5 × 102

1.1 × 102

1.9 × 102

1.2 × 102

1.1 × 106

1.3 × 102

Body

1.9 × 106

5.4 × 104

0

0

0

0

0

1.2 × 104

0

Tail

1.2 × 106

4.1 × 105

0

0

0

0

0

2.8 × 105

2.4 × 102

Samples 28–30

Head

1.7 × 107

1.8 × 105

0

0

0

1.8 × 102

0

5.3 × 105

1 × 104

Body

1.2 × 106

5.4 × 104

0

0

0

0

0

2.4 × 104

1.2 × 102

Tail

1.6 × 106

4.1 × 105

0

0

0

0

0

2.4 × 104

2.4 × 102

  1. *Samples 1–3 (Macrobrachium rosenbergi) = collected within July 2011–September 2011, Samples 4–9 (Macrobrachium rosenbergi) = collected within October 2011–March 2012, Samples 10–15 (Penaeus monodon) = collected within April 2012–September 2012, Samples 16–21 (Penaeus monodon) = collected within October 2012–March 2013, Samples 22–27 (Macrobrachium rosenbergi): Collected within: April 2013 –September 2013, Samples 28–30 (Penaeus monodon) = collected within October 2013–December 2013.
  2. TVB: Total viable bacteria.
  3. Average bacterial load (cfu/g) in each category has been shown and fecal coliforms, Salmonella spp., Pseudomona spp. and Clostridium spp. were absent.