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Yassir A. E. Khattab 1, Adel M. E. Shalaby2 and Azza, Abdel-Rhman3 - page 13 / 15

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dose

0.3ml of saline

0.3ml (107 cells/ml)

0.3ml (107 cells/ml)

Mortality

10 ± 10 a

0 a

0a

Morbidity

10 ± 10 a

0 a

6.66± 6.66 a

Healthy

80 ± 10a

100 a

. 93.33± 3.33a

Mean ± S.E. having the same letter in the same row and the same rout of injection are not  significantly different at P<0.05.

Table(2):Growth performance of Nile tilapia (O. niloticus) fed diet containing

probiotic bacteria.

Items

Control

Micrococcus luteu

Pseudomonas species

Mix

Initial weight (g/fish)

2.406 a

± 0.01

2.386 a

± 0.009

2.38 a

± 0.009

2.40 a

± 0.007

Final weight (g/fish)

9.39 b

± 0.465

10.16 a

± 0.040

8.02 d

± 0.063

8.976 ca

± 0.319

Weight gain (g/fish)

6.99 b

± 0.474

7.773 a

± 0.049

5.626 c

± 0.056

6.59 b

± 0.319

Weight gain (%)

290.84 b

± 3.25

325.76 a

± 3.32

234.41 d

± 1.64

276.7 c

± 6.25

S G R (%/day)

1.536 ab

± 0.044

1.61 a

± 0.007

1.34 c

± 0.005

1.47 b

± 0.004

Survival (%)

100

100

95

97.5

The same letter in the same row is not significantly different at P<0.05.

Table (3): Dry feed intake, food conversion ratio (FCR) and protein efficiency ratio

    (PER)  of Nile tilapia (O. niloticus) fed diet containing probiotic bacteria.

Items

Control

Micrococcus luteu

Pseudomonas species

Mix

DFI

11.68 ab

± 0.343

12.28 a

± 0.013

11.14 b

± 0.090

11.403 b

± 0.233

FCR

1.693 a

± 0.067

1.58 b

± 0.01

1.743 a

± 0.049

1.98 a

± 0.006

PER

2.026 ab

± 0.076

2.156 a

± 0.014

1.72 d

± 0.006

1.96 ac

± 0.056

The same letter in the same row is not significantly different at P<0.05.

Table (4): Proximate chemical analysis (%; on dry matter basis) of whole

      body of  Nile tilapia (O.niloticus) fed diet containing probiotic bacteria.

Items

Control

Micrococcus

luteu

Pseudomonas species

Mix

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