Comparison of two treatment strategies for cows with metritis in high-risk lactating dairy cows

摘要: Acute puerperal metritis (APM) and clinical (CM) are uterine diseases frequently diagnosed in dairy cows. These responsible for important economic loss because of their effect not only on reproductive performance but also milk production. The objective this study was to assess the impact two different treatments cows by measuring next gestation. end points measure included conception rate at first artificial insemination, number days conception, proportion nonpregnant over 150 after beginning carried out a high production cow farm located Lleida (northeast Spain). Recordings 1044 parturitions 747 Holstein were controlled from 2009 2014. Cows as suffering (APM or CM) if following parameters observed: an abnormally enlarged uterus; fetid, watery, reddish brown discharge with without fever (>39.5 °C); presence absence signs systemic illness (decreased production, dullness, other toxemia) within 21 postpartum. Afterwards, randomly assigned balanced groups: (1) animals receiving parenteral amoxicillin intramuscularly plus intrauterine infusion oxytetracycline (P + I group) (2) group). Furthermore, used reference (control Metritis 27.5% total (288 1044). In particular, 30.5% (118 387) 25.9% (170 657) heifers multiparous cows, respectively. Reproductive significantly affected parity, season bull, inseminator. P treatment able reduce insemination when compared heifers. significant observed conception. Additionally, increase percentage pregnant decrease greater than both treatment.