Table 1a.

Intensity of crystal spherulites in catfish kidney wet mount sections.

DoseMEL + CYA (mg/kg bw each)	Estimated equivalent in feed (ppm)	# Daily doses	Initial phase (intensity)	Confirmatoryphase (intensity)	Comment
20	500	1	0,2,2,2,4,4		(results from depletion study)
10	250	1	0,0,0	0,0,0,0,0,0,0,0,0	NOAEL
10	250	4	0,0,1,2,2,3
5	125	4	0,0,0,1,1,2
2.5	62.5	4	0,0,0,0,0,0		Starting test dose for 14 day study
2.5	62.5	14	0,1,2,2,2,22,2,2,2,2,2
1	25	14	0,0,0,0,1,1
0.5	12.5	14	0,0,0,0,0,0	0,0,0,0,0,0	NOAEL
0.1	2.5	28	0,0,0,0,0,0	None	NOAEL-depletion study data