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A and B, representative ratemeter records (in 30 s bins) showing intravenous (i.v.) kisspeptin (KP; 100 μg) excitation of oxytocin neurones from a non‐pregnant rat (A) and a late‐pregnant rat (B). C, change in firing rate 2 min before and after i.v. kisspeptin administration in early‐ or mid‐pregnant rats (G3–17) and late‐pregnant rats (G18–21). One‐way ANOVA showed no significant effect of reproductive status (F 2,34 = 1.47, P = 0.24).
