Table II.

Mean and total observed variation (CV) of the semniferous tubules length (M) and diameter (µm) and germinal epithelium height (µm) in the control, busulfan, busulfan + busulfan + THT and busulfan + L- Car treated groups

Groups		Tubule length (M)	Tubule diameter (µm)	Germinal epithelium height (µm)
Control
	Means	19.0	265*	119**
	CV	0.26	0.12	0.16
Busulfan
	Means	16.7	186	57
	CV	0.26	0.10	0.23
Busulfan + THT
	Means	19	223***	102***
	CV	0.10	0.09	0.14
Busulfan + L- Car
	Means	15	190	58
	CV	0.20	0.07	0.31

^*p< 0.002, Control vs. other groups.

^** p<0.0001, Control vs. busulfan and busulfan + L- Car.

^*** p<0.01, busulfan + THT vs. busulfan and busulfan + L- Car.