Data/hora: 07/06/2024 00:44:14

Provedor de dados: 	62	
País: 	Brazil	
Título: 	Serial clinical, colpo-cytological and endocrinological evaluations of Cerdocyon thous bitches from the Rio de Janeiro zoo	
Autores: 	Monteiro,Rafael Veríssimo; Santos,Márcio Ricardo Costa dos; Vianna,Eduardo Borges; Araújo,Tatiana Cardoso Soares de; Verona,Carlos Eduardo; Fedullo,Luís Paulo Luzes.	
Data: 	2002-01-01	
Ano: 	2002	
Palavras-chave: 	Canidae; Cytology; Endocrinology; Reproduction.	
Resumo: 	Serial clinical, colpo-cytological and endocrinological examinations of two five-year-old females of the crab-eating dog (Cerdocyon thous), from the RIOZOO Foundation in the State of Rio de Janeiro - Brazil, were carried out over a 10-month period. Clinically healthy animals were kept in sand substratum enclosures, located 500m apart from each other. They were each housed with two males. The colpo-cytological technique employed for Cerdocyon thous used methods similar to those developed for domestic bitches. Unlike domestic dogs, blood cells were absent in all phases of the estrus cycle, including the pro-estrus phase. Differentiation of each type of vaginal cells during the estrus cycle phases in this species follows the same patterns shown by domestic bitches. The estradiol and progesterone levels were similar to those occurring in domestic bitches. The progesterone levels reach their maximum (46 ng/ml) around the 10th day of pregnancy. The estradiol analysis demonstrated that, although levels of this hormone could be high at various times throughout the year, mating actually occurs in late winter and in spring. It was impossible to evaluate whether males and females kept in close proximity throughout the entire year would stimulate the production of estradiol, resulting in what would be considered a captivity artifice.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95962002000200007	
Editor: 	Faculdade de Medicina Veterinária e Zootecnia / Universidade de São Paulo	
Relação: 	10.1590/S1413-95962002000200007	
Formato: 	text/html	
Fonte: 	Brazilian Journal of Veterinary Research and Animal Science  v.39 n.2 2002	
Fonte: 	info:eu-repo/semantics/openAccess