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  • Author or Editor: Soon H. Cheong x
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A 10-month-old 488-kg (1,074-lb) Brown Swiss bull that was intended for use as a breeding animal was admitted to the Cornell University College of Veterinary Medicine Farm Animal Hospital and examined because of severe swelling of the prepuce and ventral abdomen as well as straining to urinate. Four weeks before admission, the bull had attempted to jump over a fence but became suspended on the wire; there was blunt trauma to the prepuce and caudal portion of the ventral abdomen. Initially, swelling in the injured region was moderate and the bull was able to urinate normally. Treatment of the

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in Journal of the American Veterinary Medical Association


OBJECTIVE To evaluate use of flunixin meglumine as a treatment to postpone ovulation in mares, mare fertility after flunixin meglumine treatment during estrous cycles, and effects of flunixin meglumine on function of the corpus luteum after ovulation.

ANIMALS 13 healthy mares.

PROCEDURES A single-blinded, placebo-controlled, crossover study was conducted. Flunixin meglumine (1.1 mg/kg, IV, q 24 h) or lactated Ringer solution (placebo treatment) was administered for 2 days to mares with a dominant follicle (≥ 35 mm in diameter) and behavioral signs of estrus. Mares then were bred by artificial insemination. Number of days to ovulation from initial detection of a follicle ≥ 30 mm in diameter, uterine edema score, and pregnancy were determined by ultrasonography; the examiner was unaware of the treatment of each mare. Serum progesterone concentrations were evaluated 5 and 12 days after ovulation by use of radioimmunoassay.

RESULTS Data were available for 45 estrus cycles of the 13 mares. Number of days to ovulation from initial detection of a follicle ≥ 30 mm was not significantly affected by administration of flunixin meglumine versus the placebo. Per-cycle pregnancy rate was not significantly different between flunixin meglumine (20/24 [83%] breedings) and the placebo (13/19 [68%] breedings). Flunixin meglumine did not significantly affect behavioral signs of estrus, uterine edema, or serum progesterone concentrations.

CONCLUSIONS AND CLINICAL RELEVANCE Findings did not support the use of flunixin meglumine to postpone ovulation in mares.

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in American Journal of Veterinary Research