[Morphological changes in the oviducts of infertile cows of the zebu breed]

Gross and histologic studies were carried out with a total of 118 Fallopian tubes of 59 slaughtered sterile cows of the Zebu breed originating from the Gamagüey region in Cuba. Morphologically, there were changes in 53 of the animals (89.8 per cent); of these in 29 cases both oviducts were affected, and in 24 of them only one was with lesions. In 6 of the cases (5 per cent) there were signs of acute salpingitis--hyperaemia, serous exudate, infiltration with lymphocytes and neutrophile granulocytes, and desquamation of the epithelium paving the folds. In 15 cases (13 per cent) there was subacute salpingitis--desquamation of the fold epithelium, negligible hyperaemia with oedema of the mucous membrane, and numerous plasmatic cells, fibroblasts, lymphocytes, and neutrophile granulocytes. In 61 cases (51 per cent) there were chronic salpingitis with varying fibrosis, atrophy of the folds, and cysts in the base of the folds. There were also sporadic cases of perisalpingitis.