Fig. 3From: Short-term effect of ovariohysterectomy on urine serotonin, cortisol, testosterone and progesterone in bitchesa Testosterone/creatinine ratios (mean value ± standard error) in seven bitches before and after ovariohysterectomy. W = weeks. The testosterone levels decreased after ovariohysterectomy and stayed low in all samples. Evening and morning ratios before ovariohysterectomy did not differ. *Significantly different from morning sample before ovariohysterectomy. P ≤ 0.05. b Progesterone/creatinine ratios (mean value ± standard error) in seven bitches before and after ovariohysterectomy. W = weeks. The progesterone level decreased after ovariohysterectomy and stayed low in all samples. Evening and morning ratios before ovariohysterectomy did not differ. *Significantly different from morning sample before ovariohysterectomy. P ≤ 0.05Back to article page