IUCN / SSC Cat Specialist Group - Digital Cat Library |
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| Berbare, P.E.B. | |
| Avalia‡Æo longitudinal das concentra‡äes de ester¢ides fecais em fˆmeas de gato-mourisco (_Herpailurus yagouaroundi_, Lac‚pŠde, 1809) | |
| 2004 Full Book | |
The aim of this study was analyze the ovarian cycle of captive jaguarundi (_Herpailurus yagouaroundi_) trough fecal steroid. Radioimmunoassay (RIA) was used for the measurement of estradiol, progesterone and cortisol metabolites in feces. Fecal samples were collected five days per week from eight females kept at Funda‡Æo Parque Zool¢gico de SÆo Paulo during nine months. These samples were placed into zip-lock bags and stored in freezer at - 20øC. The median of estrous cycle length, defined by two consecutive peaks of fecal estradiol metabolites, found in this study was 24 days (n=33 cycles) and the mean (ñSEM) of estrous duration was 8,65ñ0,38 days (n= 41 cycles). The median concentrations of fecal estradiol metabolites were 4,67ng/g of feces and 87,32ng/g of feces for basal and peak values respectively. Progestins median found was 0,75ug/g of feces for basal and 7,49ug/g of feces for peak values. The fluctuations in progestins profiles suggested that spontaneous ovulation did not occur. No correlations were found between progestins and fecal corticosterone during pregnancy, lactation and kitten removal. |
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