Infecção urinária e desempenho reprodutivo de matrizes suínas

Abstract

The aim of this research was to evaluate the prevalence and influence of the urinary infection in sows in the pre-partum period on their reproductive performance. Seventy-three sows were evaluated in the antepartum period. Sows were submitted to urinalysis and divided into two groups: positive and negative for urinary infection. The urine collection occurred between three to five days preceding the farrowing. Thermography images were evaluated to identify the hyperthermia of the breast system as early diagnosis of mastitis and its correlation with urinary infection. To evaluate the reproductive performance of sows were considered: number of piglets born alive and stillborn, adjusted length of the farrowing, clinical signs of postpartum illnesses, number of discarded sows, weaning-estrus interval and return to estrus post-insemination. After data collection, statistical analysis was performed using the Assistat software and means were compared by Mann-Whitney U test, Student’s T test and chi-square test. The prevalence of urinary infection in sows during labor was 41.1%. Urinary tract infection exerts no influence on the reproductive performance of sows, but it was considered a predisposing factor to the emergence of vulvar postpartum purulent discharge. There was no correlation between the occurrence of urinary infection and the increase in temperature of the mammary system.