Specific morphological features of the uterus of the coypu (Myocastor coypus)

Observations on the morphology of the uterus of the coypu (Myocastor coypus)

Authors

  • Antonio Felipe Depto. Cs. Biológicas, Fac. Cs. Veterinarias, UNCPBA
  • Paula Alzola Área de Cs. Morfológicas, Centro de Investigaciones Biológicas, Facultad de Ciencias Veterinarias, Universidad Nacional del Centro de la Provincia de Buenos Aires, Argentina https://orcid.org/0000-0001-8265-5489

DOI:

https://doi.org/10.24215/15142590e061

Keywords:

coypu, morphology, uterus, folds, cul-de-sac

Abstract

The coypu has a double uterus, and therefore presents anatomical differences from other mammals in the reproductive tract. The objective of this work was to expand knowledge about the morphology of the uterus of the coypu in sexual maturity by identifying and characterizing specific features of the uterine horns and the transition zone of the uterine cervix. Eighteen uteri were analyzed by routine histological techniques. Analysis of the serial sections allowed identification of a cranial projection of the uterine wall in the segment of the utero-tubal junctions, an incomplete longitudinal mucosal fold in the cranial lumen of the uterine horns, numerous parietal cul-de-sac and transverse folds of the endometrium, and the presence of a uterus-cervical transition segment. The uterus of the coypu presents morphological differences similar to those of other animals and specific microanatomical features.

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References

Al-Saffar FJ, Hazim N, Al-Ebbadi H. 2019. Histomorphological and histochemical study of the uterus of the adult guinea pigs (Cavia porcellus). Indian Journal of Science and Technology. 12(46):1-9. https://doi.org/10.17485/ijst/2019/v12i46/148620

dos Santos AC, Bertassoli B, Carvalho Viana D, Gomes Vasconcelos B, de Oliveira MF, Miglino MA, Chaves de Assis Neto A. 2014. The morphology of female genitalia in Galea spixii (Caviidae, Caviinae). Bioscience Journal. 30(6):1793-802. http://www.seer.ufu.br/index.php/biosciencejournal/article/view/21990

Fair S, Meade KG, Reynaud K, Druart X, de Graaf SP. 2019. The biological mechanisms regulating sperm selection by the ovine cérvix. Reproduction. 158(1):R1-R13. https://doi.org/10.1530/REP-18-0595

Felipe AE. 2006. Un modelo descriptivo del sistema reproductor hembra del coipo (Myocastor coypus) II: los órganos tubulares. Revista Electrónica de Veterinaria. 7(3):1-19. https://www.redalyc.org/pdf/636/63612698011.pdf

Felipe A, Callejas S, Cabodevila J. 1998. Anatomicohistological characteristics of female genital tubular organs of the South American nutria (Myocastor coypus). Anatomia, Histologia, Embryologia. 27(4):245-50. https://doi.org/10.1111/j.1439-0264.1998.tb00188.x

Felipe AE, Cabodevila JA, Callejas S. 2002. Morfología de la unión útero-tubárica en Myocastor coipus (coipo). Revista Chilena de Anatomía. 20(2):139-44. http://dx.doi.org/10.4067/S0716-98682002000200004

Felipe A, Callejas S, Cabodevila J. 2005. Descripción anatómica e histológica del cuello uterino de Myocastor coypus (coipo). Revista Facultad de Ciencias Agrarias de Esperanza. 15(1):15-22. https://doi.org/10.14409/fave.v15i1.3100

Felipe AE, Fumuso E, Eyheramendy V, Lombardo D. 2015. Observaciones sobre la morfología del oviducto del coipo (Myocastor coypus). International Journal of Morphology.33(4):1307-12. https://www.scielo.cl/pdf/ijmorphol/v33n4/art19.pdf

Flamini MA, Barbeito C, Portiansky E. 2019. Morphological characteristics of the uterus and uterine cervix of the plains viscacha (Lagostomus maximus). Acta Zoológica. 101(4):353-65. https://doi.org/10.1111/azo.12300

Fujihara Y, Miyata H, Ikawa M. 2018. Factors controlling sperm migration through the oviduct revealed by gene-modified mouse models. Experimental Animals. 67(2):91-104. https://doi.org/10.1538/expanim.17-0153

Holt WV, Fazeli A. 2016. Sperm storage in the female reproductive tract. Annual Review of Animal Biosciences. 4:291-310. https://doi.org/10.1146/annurev-animal-021815-111350

Jarrett CL, Jarrett TR, Harvey SB, Alworth L. 2016. The uterus duplex bicollis, vagina simplex of female chinchillas. Journal of the American Association for Laboratory Animal Science. 55(2):155-60.

Mason PG, Bianchi CP, Felipe AE. 2009. Histological observation of the cervix of coypu (Myocastor coypus bonariensis). Scientific Information in Fur Animal Production. 33 (4):55-8.

Martins LL, Biagioni MM, Oliveira FS, Toniollo GH, Pacheco MR, Machado MR. 2011. Morfologia do útero de cutias nulíparas e não nulíparas. Arquivo Brasileiro de Medicina Veterinária e Zootecnia. 63(2): 326-32. https://doi.org/10.1590/S0102-09352011000200009

Qu Y, Chen Q, Guo S, Ma C, Lu Y, Shi J, Liu S, Zhou T, Noda T, Qian J, Zhang L, Zhu X, Lei X, Cao Y, Li W, Li W, Plachta N, Matzuk MM, Ikawa M, Duan E, Zhang Y, Wang H. 2021. Cooperation-based sperm clusters mediate sperm oviduct entry and fertilization. Protein & Cell. 12: 810-7 https://doi.org/10.1007/s13238-021-00825-y

Sarango V. 2011. Manual para manejo de capibaras (Hidrochaeris hidrochoeris). 1ra. Ed. Ecuador, FAO http://www.fao.org/climatechange/34141-0647a3f33cc0ab8d6a898a53133d8085e.pdf

Suarez SS. 2016. Mammalian sperm interactions with the female reproductive tract. Cell and Tissue Research. 363(1):185-94. https://doi.org/10.1007/s00441-015-2244-2

Suarez SS, Pacey AA. 2006. Sperm transport in the female reproductive tract. Human Reproduction Update. 12(1):23-37. https://doi.org/10.1093/humupd/dmi047

Suckow MA, Stevens KA, Wilson RP. 2012. The laboratory rabbit, guinea pig, hamster, and other rodents. 1ra. Ed. Londres, Academic Press, Elsevier.

Tung CK, Suárez SS. 2021. Co-Adaptation of physical attributes of the mammalian female reproductive tract and sperm to facilitate fertilization. Cells. 10(6):1297. https://doi.org/10.3390/cells10061297

Published

2021-12-20

How to Cite

Felipe, A., & Alzola, P. (2021). Specific morphological features of the uterus of the coypu (Myocastor coypus): Observations on the morphology of the uterus of the coypu (Myocastor coypus). Analecta Veterinary, 41(2), 061. https://doi.org/10.24215/15142590e061

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Section

Short Communications