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J Vet Sci 2018; 19(3): 446-451  https://doi.org/10.4142/jvs.2018.19.3.446
Ovary and vaginal epithelium dynamics during the estrous cycle in Dasyprocta prymnolopha Wagler, 1831: ultrasound and cytological examinations
Artur N. Carreiro1, João A. R. A. Diniz2, Joyce G. Souza2, Débora V. F. Araújo2, Rômulo F. F. Dias2, Liliane M. S. Azerêdo1, Ediane F. Rocha1, Ana Y. F. La Salles1, Carlos E. Peña-Alfaro2, Maria A. M. Carvalho3, Maria J. Illera4, Danilo J. A. Menezes1,5,*
1Post-graduation Program in Veterinary Medicine, and 2Academic Unit of Veterinary Medicine, Health Center and Rural Technology, Federal University of Campina Grande, Patos 58708-110, Brazil
3Department of Veterinary Morphology, Center of Agrarian Sciences, Federal University of Piaui, Minister Petrônio Portela Campus, Teresina 64049-550, Brazil
4Department of Animal Physiology, Complutense University of Madrid, 28040 Madrid, Spain
5Department of Morphology, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil
Correspondence to: Tel: +55-84-98101-9198; Fax: +55-84-3215-3431; E-mail: mdanayres@gmail.com
Received: August 11, 2017; Revised: November 25, 2017; Accepted: December 26, 2017; Published online: May 31, 2018.
The objective of the present study was to monitor and characterize morphological alterations in ovaries of agouti (Dasyprocta prymnolopha), reared in captivity, by using abdominal ultrasonography. All animals underwent daily vaginal cytological examination to identify the current cycle phase. For each phase of the estrous cycle, ultrasound examinations were carried out to identify and describe the morphology of both ovaries. Topographic parameters in an ultrasound window were established to locate the ovaries. The agouti estrous cycle lasted an average of 29.94 ± 6.77 days. During vaginal cytology examinations, all cell types were identified, and each phase of the estrous cycle was established by cell counts. No significant alterations were observed in the assessed ovarian morphometry measurements. In 75% of the animals examined, ovarian follicle presence was observed in the proestrus phase.
Keywords: gonads, investigative techniques, reproduction

© 2018 The Korean Society of Veterinary Science.

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