Epidemiologia das helmintoses pulmonares e gastrintestinais de bezerros em região de baixada do Estado do Rio de Janeiro

摘要: The epidemiology of pulmonary and gastrintestinal helmintoses calves has been studied in cross-bred Zebu-Friesian calves, 6 to 9 month old, with natural infections. were maintained permanent pasturing the lowland, climate Aw, state Rio de Janeiro. experiments had duration 24 months. At end animals bearer infection several helminth species. research was based on fecal analysis necropsies at least four every 28 days. showed tendency have larger populations autumn spring. graphical representation an ellipse, obtained through relationship total rainfall average minimum temperature per month, effective demonstrating potential for clinical parasitism