The participation of the muscarinic receptors in the preoptic-anterior hypothalamic areas in the regulation of ovulation depends on the ovary

Table 2 Ovulation in rats with unilateral ovariectomy (ULO) performed at 13:00 h of diestrus-2 day

Group	Ovulation rate*	Number of ova shed by the in situ ovary		Weight of the in situ ovary (mg/100 g bw)***
Group	Ovulation rate*	Left ovary	Right ovary	Left ovary	Right ovary
Intact	10/10	7.1 ± 0.5	5.4 ± 0.3	16.5 ± 1.2	15.6 ± 1.2
L-laparotomy	9/10	3.2 ± 1.3^b	4.8 ± 2.6	14.9 ± 1.3	15.6 ± 1.4
L-ULO	1/10^a	–	4**	–	32.7 ± 3.3^a
R-laparotomy	10/10	6.2 ± 1.4	6.0 ± 1.1	24.9 ± 4.0^b	21.7 ± 2.2^b
R-ULO	3/9^a	2.0 ± 0.6^c	–	33.4 ± 3.6^a	–

The ovulation rate and the number of ova shed (mean ± SEMs) and weight of the left or right ovary of intact rats, or rats subject to left (L-laparatomy) or right (R-laparotomy) laparotomy, and those subject to left (L-ULO) or right (R-ULO) ULO were measured at the predicted estrus day
^a p < 0.01 vs. respective laparotomy group (Fisher’s exact probability test)
^b p < 0.01 vs. respective intact group (Kruskall Wallis test, followed Dunn test)
^c p < 0.01 vs. respective laparotomy group (Kruskall Wallis test, followed Dunn test)
***data statistically analyzed by ANOVA followed by Tukey test
**represents the number of ova shed by the ovulating rat
*Number of ovulating animals/number of treated animals

ISSN: 1477-7827