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Table 2 Mean physico-chemical parameters against duration of study (days)

From: Effects of water physico-chemical parameters on tilapia (Oreochromis niloticus) growth in earthen ponds in Teso North Sub-County, Busia County

Period of study Dissolved oxygen (mg/L) (Mean ± SD) Temperature (°C) (Mean ± SD) pH (Mean ± SD) Conductivity (μS/cm) (Mean ± SD) Ammonia (mg/L) (Mean ± SD)
Day 0 9.29 ± 4.22A 23.7 ± 0.75B 6.79 ± 0.38A 72.7 ± 18.8A 0.02 ± 0.01CD
Day 14 7.69 ± 7.15AB 25.1 ± 2.93B 6.62 ± 0.33A 44.3 ± 34.2A 0.01 ± 0.01B
Day 28 6.30 ± 2.97AB 23.3 ± 0.61B 6.46 ± 0.40BC 76.4 ± 28.1BC 0.04 ± 0.06D
Day 42 6.93 ± 5.34AB 23.2 ± 2.40B 6.66 ± 0.23B 57.3 ± 26.1B 0.01 ± 0.01BC
Day 56 6.99 ± 4.30B 22.9 ± 1.63A 6.35 ± 0.26A 59.2 ± 25.1A 0.031 ± 0.04CD
Day 70 5.33 ± 3.83B 25.0 ± 3.01A 6.53 ± 0.46A 73.3 ± 12.4A 0.01 ± 0.02A
Day 84 5.44 ± 5.79AB 25.6 ± 2.43A 6.87 ± 0.81BC 83.8 ± 29.5BC 0.09 ± 0.06CD
Day 98 6.37 ± 6.03A 25.5 ± 2.91A 6.70 ± 0.52D 57.5 ± 20.1D 0.02 ± 0.02CD
Day 112 8.73 ± 8.09AB 25.7 ± 2.53A 6.68 ± 0.21CD 42.6 ± 36.9CD 0.01 ± 0.05D
F statistic 2.02 8.71 4.86 9.92 18.0
P value 0.0437 0.0001 0.0001 0.0001 0.0001
  1. Means with different supercripts in the same column are significantly different at P<0.05 (Data analyzed by Duncan's Multiple Range Test)