Fecal steroid analysis of ovarian cycles in free-ranging baboons

1995 ◽  
Vol 36 (4) ◽  
pp. 285-297 ◽  
Author(s):  
Ronda Stavisky ◽  
Elizabeth Russell ◽  
Joy Stallings ◽  
E. O. Smith ◽  
Carol Worthman ◽  
...  
Keyword(s):  
Fecal Steroid ◽  
Steroid Analysis ◽  
Free Ranging ◽  
Ovarian Cycles

An assessment of the reproductive biology of Yellowstone bison (Bison bison) subpopulations using noncapture methods

1996 ◽  
Vol 74 (1) ◽  
pp. 8-14 ◽  
Author(s):  
J. F. Kirkpatrick ◽  
J. C. McCarthy ◽  
D. F. Gudermuth ◽  
S. E. Shideler ◽  
B. L. Lasley
Keyword(s):  
Reproductive Biology ◽  
National Park ◽  
Demographic Data ◽  
Fetal Loss ◽  
Bison Bison ◽  
Age Group ◽  
Fecal Steroid ◽  
Lactating Cows ◽  
Steroid Analysis ◽  
Free Ranging

Five parameters of reproductive biology (number of live calves, rates of tending lactating and nonlactating cows, and age-specific calving and pregnancy rates) were measured for the Mary Mountain (≈2500) and Northern Range (≈600) herds of bison (Bison bison) in Yellowstone National Park between 1990 and 1993. Three physiological events (ovulation, pregnancy, fetal loss) affecting reproductive success were measured using urinary or fecal steroid analysis. Adult Mary Mountain cows had significantly fewer pregnancies and calves than the Northern Range cows. Approximately 85% of cows tended by bulls, 76% of detected ovulations, and 78% of detected fall pregnancies were among nonlactating cows. Greater than 80% of all pregnancies occurred in cows ≥4 years old in both herds. However, 100% of all pregnancies among lactating cows occurred in cows ≥5 years old in both herds. In the Mary Mountain subpopulation, only 5% of all pregnancies were among cows <4 years old, while 14.2% of all pregnancies in the Northern Range herd occurred in cows in the same age group. These data indicate that (i) the number of live calves and the pregnancy rate are significantly reduced among lactating cows, (ii) reproductive failure among lactating cows is primarily caused by ovulation failure, (iii) lactating cows that successfully reproduce are exclusively animals ≥5 years old, and (iv) the results of urinary or fecal steroid analysis are consistent with behavioral and demographic data and can be used to evaluate specific aspects of reproductive physiology among free-ranging ungulates.

scholarly journals Fecal steroid analysis for monitoring reproduction in the sun bear (Helarctos malayanus)

2004 ◽  
Vol 62 (9) ◽  
pp. 1677-1692 ◽  
Author(s):  
Franz Schwarzenberger ◽  
Gabriella Fredriksson ◽  
Karl Schaller ◽  
Lydia Kolter
Keyword(s):  
The Sun ◽  
Helarctos Malayanus ◽  
Fecal Steroid ◽  
Steroid Analysis ◽  
Sun Bear

Adult and Juvenile Sex Identification in Threatened MonomorphicGeocriniaFrogs Using Fecal Steroid Analysis

2013 ◽  
Vol 47 (1) ◽  
pp. 112-118 ◽  
Author(s):  
Lindsay A. Hogan ◽  
Allan T. Lisle ◽  
Stephen D. Johnston ◽  
Tammy Goad ◽  
Helen Robertston
Keyword(s):  
Sex Identification ◽  
Fecal Steroid ◽  
Steroid Analysis

scholarly journals Assessment of Reproductive Status of Sika Deer by Fecal Steroid Analysis.

1997 ◽  
Vol 43 (3) ◽  
pp. 221-226 ◽  
Author(s):  
Kiyoshi YAMAUCHI ◽  
Shinichiro HAMASAKI ◽  
Yukari TAKEUCHI ◽  
Yuji MORI
Keyword(s):  
Sika Deer ◽  
Reproductive Status ◽  
Fecal Steroid ◽  
Steroid Analysis

scholarly journals Profiling patterns of fecal 20-oxopregnane concentrations during ovarian cycles in free-ranging southern white rhinoceros (Ceratotherium simum simum)

2015 ◽  
Vol 161 ◽  
pp. 89-95 ◽  
Author(s):  
Annemieke Catharina van der Goot ◽  
Graeme Bruce Martin ◽  
Robert Peter Millar ◽  
Monique Christina Johanna Paris ◽  
Andre Ganswindt
Keyword(s):  
Ceratotherium Simum ◽  
White Rhinoceros ◽  
Southern White Rhinoceros ◽  
Free Ranging ◽  
Ceratotherium Simum Simum ◽  
Ovarian Cycles

A comparison of fecal steroid metabolite concentrations between harem and bachelor stallions in a free-Ranging population of przewalski's horses (Equus ferus przewalskii)

Zoo Biology ◽  
2017 ◽  
Vol 36 (2) ◽  
pp. 127-131
Author(s):  
Maureen D'Souza-Anjo ◽  
Bruce W. Christensen ◽  
Kristin Brabender ◽  
Waltraut Zimmermann ◽  
Philip H. Kass ◽  
...  
Keyword(s):  
Fecal Steroid ◽  
Metabolite Concentrations ◽  
Free Ranging ◽  
Steroid Metabolite

Anuran gender identification by fecal steroid analysis

Zoo Biology ◽  
2006 ◽  
Vol 25 (1) ◽  
pp. 35-46 ◽  
Author(s):  
D.C. Szymanski ◽  
D.H. Gist ◽  
T.L. Roth
Keyword(s):  
Gender Identification ◽  
Fecal Steroid ◽  
Steroid Analysis
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