POSTPARTUM BOVINE ENDOMETRITIS TREATMENT BY INTRAUTERINE AND INTRAMUSCULAR ADMINISTRATION OF OXITETRACYCLINE

Abstract

The aim of this study was to evaluate the efficiency of the postpartum bovine endometritis treatment by intrauterine and intramuscular administration of tetracycline. Forty six cross bred cows diagnosed by gynecological exam with postpartum endometritis were assigned randomly in two treatments: G1 (n=21) - animals were treated with one intramuscular (IM) dose of tetracycline (20 mg/Kg of body weight), while in G2 (n=25) animals were treated with one intrauterine (IU) dose of tetracycline (30 mg/Kg of body weight). No difference (p>0.05) was observed in the recovery rate between the two treatments (61.9 X 76.0%, G1 and G2, respectively). The interval from treatment until first estrous was 33.9±22.6 versus 14.8 ±10.9 days (P<0.05) and until first service was 54.7 ± 33.9 versus 27.2 ± 20.3 days (P<0.05;) for G1 and G2, respectively. No difference (p>0.05) was observed in the number of services per conception between G1 (1.54) and G2 (1.3). The treatment cost was lower for the G1 (U$ 3.51 versus U$ 5.00). Although not to have had differences in the clinical recovery rate, the use of the oxitetracycline managed for way IU in the postpuerperal treatment of endometrites in cows revealed more efficient in the reduction of the interval between the treatment and first heat and first insemination, beyond presenting lower cost that the treatment with oxitetracycline managed for way IM

KEY WORDS: Bovine, postpartum endometritis, intrauterine, intramuscular, oxitetracicline.