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Table 1 General linear model of ammonia and nitrate concentrations across water treatments

From: Improvement of water quality for mass anopheline rearing: evaluation of the impact of ammonia-capturing zeolite on larval development and adult phenotypic quality

Parameter Source df F-ratio P-value
Ammonia (mg/l) Feed 1 0.605 0.4374ns
Larval density 1 0.4077 0.5238ns
Water treatment 3 88.361 < 0.0001***
Day 1 171.397 < 0.0001***
Water treatment * day 3 56.165 < 0.0001***
Day * day 1 82.230 < 0.0001***
Nitrate (mg/l) Feed 1 40.497 < 0.0001***
Larval density 1 3.167 0.0764 ns
Water treatment 3 12.992 < 0.0001***
Day 1 128.072 < 0.0001***
Water treatment * day 3 6.202 0.0005**
Day * day 1 61.472 < 0.0001***
  1. P-value: ***< 0.0001 (most significant), **< 0.005, *< 0.05, ns> 0.05 (not significant)
  2. df Degrees of freedom. A quadratic term (Day*Day) was added to account for non-linearity of the effect of day on ammonia concentration