Table 2 Water physicochemical parameters (Mean ± SD) of each treatment during the experimental period.

From: Investigation of the effects of phytogenic dietary additives on growth performance, nutrient utilization, economic efficiency and health of Pangasius hypophthalmus : implications for sustainable aquaculture development

Physicochemical parameters

Treatments

(T1)

(T2)

(T3)

(T4)

(T5)

DO (mg/l)

6.28 ± 1.85

6.26 ± 1.74

6.24 ± 1.82

6.21 ± 1.71

6.21 ± 1.66

Temperature (°C)

29.02 ± 1.14

29.01 ± 1.82

29.04 ± 1.66

29.02 ± 1.71

29.04 ± 1.72

Salinity (ppt)

0.2 ± 0.06

0.2 ± 0.08

0.2 ± 0.04

0.2 ± 0.05

0.2 ± 0.07

Nitrite (mg/l)

0.012 ± 0.005

0.012 ± 0.004

0.012 ± 0.006

0.012 ± 0.001

0.013 ± 0.002

pH

7.20 ± 0.84

7.14 ± 1.01

7.11 ± 7.11

7.10 ± 1.22

7.12 ± 1.02

Nitrate (mg/l)

1.70 ± 0.24

1.81 ± 0.40

1.82 ± 0.45

1.82 ± 0.56

1.83 ± 0.67

Alkalinity (mg/l)

92.6 ± 27.54

91.6 ± 30.08

91.4 ± 33.02

91.6 ± 32.02

91.8 ± 30.41

Turbidity (NTU)

1.64 ± 0.15

1.64 ± 0.24

1.63 ± 0.44

1.68 ± 0.12

1.60 ± 0.18

Ammonia (mg/l)

0.011 ± 0.001

0.011 ± 0.002

0.041 ± 0.003

0.012 ± 0.004

0.012 ± 0.004

  1. All monitored water quality parameters remained within the optimal range for the cultivation of Pangasius hypophthalmus throughout the experimental period.
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