Twelve mixed-bred, bitches were divided in two groups of six animals each after ovariohysterectomy. One group received 0.01mg/kg per os of natural conjugated estrogens every 48h for 12 months; the other group, used as control, was not treated with hormones. Blood samples were collected every 60 days and the levels of total cholesterol, triglycerides, HDL, LDL and VLDL were determined. Ovariohysterectomy affected the lipoproteic profile, increasing the total cholesterol and LDL levels; it also showed that the estrogen supplementation maintained the lipoproteic profile of castrated bitches within normal levels.
bitch; ovariohysterectomy; cholesterol; lipoprotein; estrogen
