Background: Polycystic ovary syndrome (PCOS) is an endocrine disturbance that causes primary anovulation that result in infertility. There are more symptoms accompanying this syndrome: acne, hirsutism, obesity, irregular menstrual cycle and many others. This syndrome can be more or less successfully treated but in 10-15% of cases it is resistant to any kind of treatment used in nowadays practic...

The effects of mastectomy and unilateral ovariectomy and their interaction during the postpartum period were examined in 26 Angus heifers. At birth, the animals were assigned to a 2 x 2 factorial arrangement of treatments: mastectomy and unilateral ovariectomy, mastectomy, unilateral ovariectomy and unoperated suckled control. Surgeries were performed at approximately 2 months of age, and anima...

Background: A prospective randomized study was used to compare surgery times for laparoscopic ovariectomy and salpingectomy in female African lion (Panthera leo) (n = 14) and cheetah (Acinonyx jubatus) (n = 20) and to compare the use of a multiple portal access system (MPAS) and single portal access system (SPAS) between groups. Two different portal techniques were used, namely MPAS (three sepa...

BACKGROUND A prospective randomized study was used to compare surgery times for laparoscopic ovariectomy and salpingectomy in female African lion (Panthera leo) (n = 14) and cheetah (Acinonyx jubatus) (n = 20) and to compare the use of a multiple portal access system (MPAS) and single portal access system (SPAS) between groups. Two different portal techniques were used, namely MPAS (three separ...

Bilateral ovariectomy or adrenalectomy are experimental tools used to understand the mechanisms regulating the hypothalamus-pituitary-ovarian and the hypothalamus-pituitary-adrenal axis. There is evidence that acute unilateral perforation of the dorsal peritoneum in rats results in significant changes in progesterone, testosterone and estradiol serum concentrations. Because different surgical a...

A study was conducted to determine whether compensatory ovarian hypertrophy occurred in prepuberal heifers, and if so, could compensatory ovarian hypertrophy be prevented by injecting charcoal-extracted bovine follicular fluid (CFF). An additional objective was to determine the effect of CFF injections on follicle stimulating hormone (FSH) and luteinizing hormone (LH) concentrations following u...

After unilateral ovariectomy of 4-day-cyclic rats, plasma FSH increased over control values for 6--12 h after the surgery regardless of whether unilateral ovariectomy was performed before or after 08:00 h on the day of dioestrus, after which time compensatory ovulation did not occur at the next oestrus. Pituitary content of FSH also increased from 6 h after unilateral ovariectomy. In contrast, ...