Comparación de la ozonoterapia y tratamiento alopático sobre la endometritis subclínica en vacas Holstein mestizas en periodo postparto

Abstract

The objective of this study was to compare the effect of ozone therapy and an allopathic treatment on subclinical endometritis (SE) in Holstein cows in the postpartum period. The research was made in three dairy farms of Cuenca: Granja Nero and Granja Irquis of the University of Cuenca; and a private dairy farm, Cumbesa, since February to November 2016. Multiparous cows were selected between 34 and 47 days postpartum (DPP), they were practiced endometrial cytology, the cows with a percentage ≥ 10% of polymorphonuclear (PMNs) were considered with SE and were divided in two groups, they were applied through intrauterine to G1 (n = 30) with 500mg cephapirin benzathine (CB) excipient csp 19g, to G2 (n = 30) with 45μg / ml O3 in 60ml of distilled water sterile type II and in the group 3 (n = 30) was composed of cows with a percentage of PMNs <10% which did not receive any treatment (control group); the data were processed using a PROC GLIMIX general linear model of SAS 9.3. The percentage of PMNs between 34-47 DPP in G1, G2 and G3 were 16,3 ± 0,09; 15,1 ± 0,09 and 3,4 ± 0,19 respectively, after 72 hours the effect of the treatments was evaluated, obtaining statistical difference between G1 = 6,2 ± 0,04% and G2 = 3,2 ± 0,05% (P <0,0001), and G1 vs G3 (2,9 ± 0,05%) (P <0,0001). The interval between calving (IPCe), interval conception (IPCo) and the percentage of pregnancy at the first service did not present a statistical difference between the treatments (P> 0.05), however, in G2 we estimate to obtain higher lactation income ($ 13.218,10) compared to G1 ($ 8.925,06) due to a higher percentage of pregnancy to first service (63.3% and 43.3%, respectively) and lower costs in the IPCe and IPCo. In conclusion, the administration of O3 and CB reduce the percentages of PMNs between 34 and 47 DPP, O3 being more effective and has a positive economic impact on the reproductive performance compared to the other treatments under study.