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

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

Parameter	Source	df	F-ratio	P-value
Ammonia (mg/l)	Feed	1	0.605	0.4374^ns
	Larval density	1	0.4077	0.5238^ns
	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***

P-value: ***< 0.0001 (most significant), **< 0.005, *< 0.05, ^ns> 0.05 (not significant)
df Degrees of freedom. A quadratic term (Day*Day) was added to account for non-linearity of the effect of day on ammonia concentration

ISSN: 1756-3305