Prolonged ovarian acyclicity is associated with a higher likelihood of developing hyperprolactinemia in zoo female African elephants

Authors: Natalia A. Prado, Stephen W. Paris, Janine L. Brown

Publication/Journal: Zoo Biology

Keywords: endangered, hypogonadism, infertility, pituitary disorder, progesterone, prolactin, zoo

2019

Characterization of estrous cycles and pregnancy in Somali wild asses (Equus africanus somaliensis) through fecal hormone analyses

Authors: Corinne P. Kozlowski, Helen L. Clawitter, Tim Thier, Martha T. Fischer, Cheryl S. Asa

Publication/Journal: Zoo Biology

Keywords: equid, estrogens, gestation, progestagens

2018

Investigating temporary acyclicity in a captive group of Asian elephants (Elephas maximus): Relationship between management, adrenal activity and social factors

Authors: K. L. Edwards, J. Trotter, M. Jones, J. L. Brown, H. W. Steinmetz, S. L. Walker

Publication/Journal: General and Comparative Endocrinology

Keywords: animal welfare, asian elephant, birth synchrony, central mechanisms, chemical communication, dominance status, endocrinology & metabolism, enzyme immunoassay, estrous synchrony, glucocorticoids, loxodonta-africana elephants, management, oestrous synchrony, ovarian activity, reproduction, reproductive cyclicity, temporary acyclicity, zoo elephants

2016

Reproductive activity in the peninsular pronghorn determined from excreted gonadal steroid metabolites

Authors: David C. Kersey, Jeff Holland, Curtis Eng

Publication/Journal: Zoo Biology

Keywords: estrus, fecal hormone, pregnancy, seasonality, validation

2015

Evaluating the physiological and behavioral response of a male and female gorilla (Gorilla gorilla gorilla) during an introduction

Authors: Raechel M. Jacobs, Stephen R. Ross, Katherine E. Wagner, Maureen Leahy, Susan T. Meiers, Rachel M. Santymire

Publication/Journal: Zoo Biology

Keywords: androgen, ape, fecal steroid hormones, glucocorticoids, progestagen, stress response

2014

Ovarian cycle approach by rectal temperature and fecal progesterone in a female killer whale, Orcinus orca

Authors: Satoshi Kusuda, Yuka Kakizoe, Koji Kanda, Tomoko Sengoku, Yohei Fukumoto, Itsuki Adachi, Yoko Watanabe, Osamu Doi

Publication/Journal: Zoo Biology

Keywords: body temperature, cetacean, estrous cycle, fecal hormone, progestagen

2011

Using a Simplified Field Progestagen Method to Assess Ovarian Activity in Female African Elephants

Authors: E.W. Freeman, J.M. Meyer, S. Putman, B.A. Schulte, J.L. Brown

Publication/Journal: Biological Conservation

Keywords: african elephants, loxodonta africana, non-invasive endocrinology, pregnancy

2011

Investigating the impact of rank and ovarian activity on the social behavior of captive female African elephants

Authors: Elizabeth W. Freeman, Bruce A. Schulte, Janine L. Brown

Publication/Journal: Zoo Biology

Keywords: acyclicity, african elephant, behavior, loxodonta africana, social rank

2010

Results of a second survey to assess the reproductive status of female Asian and African elephants in North America

Authors: Christine M. Proctor, Elizabeth W. Freeman, Janine L. Brown

Publication/Journal: Zoo Biology

Keywords: estrous cycle, hormones, ovarian cyclicity, progestagens, ultrasound

2010

Effect of housing and environmental enrichment on adrenocortical activity, behavior and reproductive cyclicity in the female tigrina (Leopardus tigrinus) and margay (Leopardus wiedii)

Authors: Nei Moreira, J. L. Brown, W. Moraes, W. F. Swanson, E. L. A. Monteiro-Filho

Publication/Journal: Zoo Biology

Keywords: behavior, corticoids, estrogens, fecal steroids, noninvasive monitoring, ovarian activity, progestagens, reproduction, stress

2007

Our Goals