Intersexuality in a crab-eating fox (Cerdocyon thous)

Pesquisa Veterinária Brasileira

Marcos R.f. Mattos²  Lucilene Simões-mattos²  Célso Pilati¹  Lúcia D.m. Silva¹  Sheyla F.s. Domingues¹ 

[1] ,Universidade Federal Rural de Pernambuco Unidade Acadêmica de Garanhuns Garanhuns PE ,Brazil

关键词: Cerdocyon thous;    crab-eating fox;    gonadal absence;    intersexuality;    reproductive pathology;    Cerdocyon thous;    raposa;    ausência gonadal;    intersexualidade;    patologia reprodutiva;   

DOI  :  10.1590/S0100-736X2010000600007

来源: SciELO

【 摘 要 】

Intersexuality is a reproductive pathology that has been described in wild animals in recent years. However, its occurrence and consequences remain obscure and therefore all aspects of this reproductive disorder deserve attention. The aim of this study is to report a case of intersexuality with probable absence of gonadal tissue in the crab-eating fox (Cerdocyon thous) native to Brazil. The animal has male external genitalia, but its prepuce and penis were both hypoplastic. Because of a clinical suspicion of bilateral cryptorchidism, a laparotomy was performed and the absence of prostate and gonads were revealed. The procedure also revealed vas deferentia, extending laterally from the each side of the bladder basis to the right and left abdominal wall muscles. The animal died one month later, and post mortem examination confirmed the absence of prostatic and gonadal tissues. Muscular structures similar to uterine horns and cervix were founded macroscopically and confirmed by optic microscopy. In addition, post mortem findings corroborate with penis hypoplasia, since penile bone presence was observed. The vasa deferentia had a normal tissue structure, although hypoplastic. In conclusion, the case of a crab-eating fox (Cerdocyon thous) reported here represents a proved intersexual animal with probable absence of gonadal tissue.

【 授权许可】

CC BY-NC   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License