Colpocytologycs analyses in distinct phases of oestral cycle were performed in 20 female agoutis (Dasypwcta prymnolopha), as well as, the determination of gestation's ienght in six others animals. The agoutis were raised in captive management, in climatologie conditions of Amazon humid tropic. The animals showed a polyestrus continous reproduction pattern, then no sazonality was observed. The oestral period was 30,69 ± 4,65 days and the gestation's length average was 104,33 + 0,57 days. During proestrus phase the exfoliative cytology arrangement showed high frequency of anucleated superficial, intermediate and parabasal cells, respectively; the oestrus phase had elevated rates of superficial cells (anucleated and nucleated) and absence of leukocytes; highest indices of intermediate cells and an increse of leukocytes was found in metestrus phase; in diestrus phase the predominant cells type was the parabasal.
Agouti; reproduction; captivity; colpocytology