Relação entre escores de higiene perineal no parto e doenças reprodutivas no pós-parto em vacas leiteiras mestiças

Abstract

Placenta retention, metritis and clinical endometritis are disorders present in dairy farms, so investigating further a possible predisposing factor is important. The objective of this study was to evaluate the relationship between hygiene of the perineum at delivery and the occurrence of placenta retention, metritis, clinical endometritis and its influence on the period of service, conception rate, number of inseminations per conception and rate of disposal in crossbred dairy cows. In two commercial farms, the cows in the pre-calving lot (n = 101) were evaluated for the degree of soiling in the perineal region about three days before calving and at the time of calving, where scores from 1 to 3 were assigned (Score 1 - free of feces and completely dry; Score 2 - subtle presence of feces and wet perineum on 1-10% of the surface; Score 3 - moderately wet perineum, covered with manure on more than 10% of the surface). After calving, the cows were evaluated for diagnosis of placental retention and also by gynecological evaluation to verify the presence of metritis and clinical endometritis. It was found that cows with hygiene scores 2 or 3 had a higher incidence of placental retention (41.9% vs. 14.0%), metritis (32.5% vs. 14.0 %%) and clinical endometritis (42.5% vs. 15.8%) than cows with score 1, but there was no effect on the reproductive indexes evaluated. It is concluded that the degree of dirtiness of the perineal region in crossbred dairy cows in the prepartum period is related to the occurrence of reproductive diseases in the postpartum period.