Does increased immune response at early postpartum period have a relationship with metabolic markers and subsequent fertility?

The aim of the present study was to investigate blood parameters and subsequent fertility in cows with or without increased postpartum polymorphonuclear neutrophil activity. conducted 15 Brown Swiss between 1-3 lactations. Polymorphonuclear activities were assessed at 10±4 days before after parturition. which maintained their phagocytic oxidative burst activites compared prepartum period classified as control (CON), defined cellular immune response (ICIR) cows. Energy, protein metabolism markers, hepatic enzymes, mineral levels body condition scores measured -10±4, 3±2, relative Pregnancy rates, number inseminations, calving pregnancy intervals evaluated. mean non-esterified fatty acid (NEFA) beta- -hydroxybutyric (BHB) concentrations lower ICIR Mean serum calcium (Ca) subclinical hypocalcemia level day CON Postpartum cell functions NEFA, BHB negatively cor- related. interval longer However, total preg- nancy rates insemination both groups similar. In conclusion, postpar- tum activity is affected by periparturient metabolic status. energy metabolites response. early positively related dairy