Urinary progesterone in free-ranging red howler monkeys (Alouatta seniculus): preliminary observations of the estrous cycle and gestation

Autor:	J R, Herrick, G, Agoramoorthy, R, Rudran, J D, Harder
Rok vydání:	2000
Předmět:	Pregnancy Radioimmunoassay Animals Pregnancy Animal Female Alouatta Menstrual Cycle Progesterone
Zdroj:	American journal of primatology. 51(4)
ISSN:	0275-2565
Popis:	The goals of this study were to develop and validate a radioimmunoassay (RIA) for measurement of unconjugated progesterone (P) concentrations in the urine of red howler monkeys (Alouatta seniculus) and to use urinary P profiles to characterize the reproductive cycle of this species. Analysis of P profiles from two females provided a preliminary estimate of the length of the estrous cycle (mean days +/- S.E.M. = 29.5 +/- 1.5; n = 2), and indicated that one female red howler copulated throughout two apparent estrous cycles. Urinary P concentrations during two confirmed pregnancies (211.8 +/- 29.7 ng P/ml) were higher (P0.05) than during the luteal phase (77.4 +/- 10.6 ng P/ml; n = 4) of the cycle.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=pmid________::6461c0b8ce68a82e7bf2ff073ec5060e https://pubmed.ncbi.nlm.nih.gov/10941442 Zobrazit plný text záznamu Plný text