Table 2b.

Sequential dosing experiments – trout.

Triazine order	Waiting period (days)	Initial phase (intensity)	Confirmatory phase (intensity)	Comments
MEL	1	3,3,3
then
CYA
	3	0,2,3
	7	0,0,2
	14	0,0,0	0,0,1
	21	0,0,0	0,0,0	These were done concurrently w/14 day
CYA	1	0,2,3
then
MEL
	3	0,0,0	0,0,3
	7	0,0,0	0,0,0

The intensity of melamine–cyanurate crystal spherulites seen on a wet mount section of kidney. Each intensity value represents the finding in an individual fish, initial phase n = 3, confirmatory phase n = 3.

Fish were given 20 mg/kg bw of the first triazine followed by a waiting period and then 20 mg/kg bw of the second triazine. Estimated equivalent in feed is approximately 500 ppm of each triazine.

Intensity Scale as in Table 1.