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Determinação do ciclo estral em catetos Pecari tajacu: aspectos colpocitológicos e clínicos
(2011) GUIMARÃES, Diva Anelie de Araújo; GARCIA, Sylvia Cristina Garcia de; LE PENDU, Yvonnick; ALBUQUERQUE, Natália Inagaki de
The main objective of this work was to study the estrous cycle of collared peccary by vaginal cytology. Samples were collected in 10 adult females, three times a week, for six months. The estrous cycle period for this specie was 28.45 ± 5.45 days. We observed a significant difference (p<0.01) between the cell types in the same phase of the oestrous cycle. During the proestrus phase, the exfoliative cytology arrangement showed high frequency of intermediate and superficial cells. The estrus phase had elevated rates of superficial cells, when compared to the other types, and an absence of leukocytes. During this phase, the external genitalia were reddish, tumescent; and the cervical mucus was evident. In the metaestrus phase, we observed a decrease of superficial cells, as well as the highest indices of intermediate cells, an increase of leukocytes and the presence of metestrus and foam cells. In the diestrus phase, the intermediate cells increased and leukocytes decreased. In conclusion, the present study suggests that it is possible to differentiate the phase of estrous cycle by vaginal cytology.