Postpartum reproductive performance in dairy cows under different managemental systems and in cows with induced parturitions. A clinical, microbiological, morphological, hormonal and granulocyte function study

actinomyces pyogenes bacteroides dairy cows enfermedades infecciosas estonia estonie fusobacterium necrophorum granulocitos granulocyte granulocytes infectious diseases maladie infectieuse performance de reproduction perinatal period progesterona progesterone prostaglandinas prostaglandine prostaglandins reproductive performance reproductividad suecia sweden utero uterus vacas lecheras