Resumen

OTALVARO, Luis J; CORREA, Claudia J; VELASQUEZ, Carlos E  y  MALDONADO-ESTRADA, Juan G. Ovulation failure in a Colombian Paso fino Mare: A combined antihomotoxic homeopathic therapy and hormonal treatment: A case report. Rev Colom Cienc Pecua [online]. 2009, vol.22, n.4, pp.665-675. ISSN 0120-0690.

Ovulation failure is one of the most frequent causes of infertility in mares. In the present case we report a six-year-old Colombian Paso Fino maiden Mare that was attended for breeding purposes with a previous history of ovulation failure. At ultrasound (US) examination of the reproductive tract and ovaries the left ovary measured 15 x 13 cm and a pathologic 13 x 11 cm diameter anecoic structure was diagnosed. The right ovary was found of normal size, and the uterus was found flacid. An anti homotoxic theraphy with Ovarium compositum^®, Damiana injeel^®, Cerebrum compositum^®, and Phosphor hommacord^® for 1½ months and FK (neural) therapy (twice/15 days) were then established, the ovary size was reduced, and softening of the follicular wall and a slight uterine response were observed. After 1½ month, the left ovary had 13 x 11 cm diameter and showed a 9 x 8 cm follicle, whereas the right ovary was multifollicular. Serum progesterone, estradiol and testosterone levels were those characteristics of an anestrous mare. The mare was treated with hCG (3.000 UI, i.v./3 days) and 4 days later a corpus luteum was diagnosed by US in the left ovary and serum progesterone levels raised to 14.91 ng/dl. At day 7 after hCG treatment the mare was given PGF_2α (9 μg/kg/for two days) intramuscular, estrous was evident 5 days later, and artificial insemination (AI) with fertile semen was practiced resulting in a viable pregnancy as evaluated by ultrasound at day 20; however, this pregnancy was lost at 40 days after AI. The mare returned to estrus 20 days later, she was then inseminated and the resulting pregnancy was confirmed at day 20^th resulting in a successful gestation and foaling of a full term viable foal. This report suggests hormonal therapy and alternative medicine could be successfully combined for treatment of specific ovarian pathologies in mares.

Palabras clave : anestrous; ovarian problems in mares; ovarian tumor; progesterone; testosterone.

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