Table 3. Changes in tissue weights during the rat estrous cycle

	Metestrus	Diestrus	Proestrus	Estrus
Ovary (mg)	49.8±11.57*	52.78±14.98	45.12±6.11**	62.43±13.65
Uterus (mg)	394.02±90.99##	454.72±50.63##	571.34±56.64	556.13±220.6

p<0.05 versus Estrus;
p<0.01 versus Estrus;
p<0.01 versus Proestrus.