Felipe Antonio Eduardo, Killian Marcelo Pablo, Lombardo Daniel Marcelo
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引用次数: 0
Abstract
The coypu (Myocastor coypus bonariensis) is a semi-aquatic hystricomorph rodent native to South America, widely distributed across wetlands from southern Brazil to Tierra del Fuego. The general features of the ovary of the coypu older than 6 months are similar to those described for other hystricomorphs. The objective of this research was to expand the qualitative and quantitative characterization of the follicular typology of coypu at sexual maturity. We worked with 36 ovaries from females in different stages of the oestrous cycle. The follicles were analysed based on qualitative and quantitative characteristics, such as their size (mean follicular diameter and number of granulosa cells), size of each oocyte and its nucleus, presence of zona pellucida, antrum, and theca. Six follicular types were established, subdivided into 12 subtypes. Establishing this follicular typology in a South American species advances comparative studies. Additionally, it enables a deeper analysis of follicular development across different species.
期刊介绍：
Anatomia, Histologia, Embryologia is a premier international forum for the latest research on descriptive, applied and clinical anatomy, histology, embryology, and related fields. Special emphasis is placed on the links between animal morphology and veterinary and experimental medicine, consequently studies on clinically relevant species will be given priority. The editors welcome papers on medical imaging and anatomical techniques. The journal is of vital interest to clinicians, zoologists, obstetricians, and researchers working in biotechnology. Contributions include reviews, original research articles, short communications and book reviews.
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