Social influences on the estrous cycle of the captive sun bear (Helarctos Malayanus)

Authors: Cheryl Frederick, Kathleen Hunt, Randall Kyes, Darin Collins, Barbara Durrant, James Ha, Samuel K. Wasser

Publication/Journal: Zoo Biology

Keywords: aggression, behavior, estrus, fecal hormones, male influence, reproductive suppression

2013

Src kinase signaling mediates estrous behavior induced by 5β-reduced progestins, GnRH, prostaglandin E2 and vaginocervical stimulation in estrogen-primed rats

Authors: Francisco J. Lima-Hernández, Carlos Beyer, Porfirio Gómora-Arrati, Marcos García-Juárez, José L. Encarnación-Sánchez, Anne M. Etgen, Oscar González-Flores

Publication/Journal: Hormones and Behavior

Keywords: 5β-dihydroprogesterone, 5β-pregnan-3β-ol-20-dione, estradiol, gnrh, lordosis behavior, mapk, pge2, pp2, src kinase

2012

Ovarian Ultrasonography Correlated with Fecal Progestins and Estradiol During the Estrous Cycle and Early Pregnancy in Giraffes (Giraffa camelopardalis rothschildi)

Authors: I. Lueders, T. B. Hildebrandt, J. Pootoolal, P. Rich, C. S. Gray, C. A. Niemuller

Publication/Journal: Biology of Reproduction

Keywords: corpus luteum, estradiol, follicle, noninvasive monitoring, ovary, progesterone

2009

Effect of progestins on serum hormones, semen production, and agonistic behavior in the gerenuk (Litocranius walleri walleri)

Authors: Linda M. Penfold, Linda Munson, Ed Plotka, Scott B. Citino

Publication/Journal: Zoo Biology

Keywords: antelope, cortisol, mga, mpa, spermatozoa, testosterone

2007

Reproductive cycles and contraception of black lemurs (Eulemur macaco macaco) with depot medroxyprogesterone acetate during the breeding season

Authors: Cheryl S. Asa, Ingrid J. Porton, Randall Junge

Publication/Journal: Zoo Biology

Keywords: contraception, lemur, medroxyprogesterone, pregnancy, primate, prosimian, vaginal cytology

2007

Effects of pregnancy on spatial cognition in female Hooded Long-Evans rats

Authors: Karin J. Bodensteiner, Peter Cain, Andrea S. Ray, Lyndsey A. Hamula

Publication/Journal: Hormones and Behavior

Keywords: cognition, hippocampus, hormone, pregnancy, rat, spatial memory, water maze

2006

Pregnancy detection from fecal progestin concentrations in the red panda (Ailures fulgens fulgens)

Authors: Edith A. MacDonald, Lesley E. Northrop, Nancy M. Czekala

Publication/Journal: Zoo Biology

Keywords: fecal hormone, hormones, radio-immuno assay

2005

Comparative endocrinology of cycling and non-cycling Asian (Elephas maximus) and African (Loxodonta africana) elephants

Authors: J. Brown

Publication/Journal: General and Comparative Endocrinology

Keywords: hormones, ovarian cyclicity, progestins, reproductive dysfunction, ultrasound

2004

Use of salivary steroid analyses to assess ovarian cycles in an Indian rhinoceros at the National Zoological Park

Authors: Andrés Gómez, Erin Jewell, Susan L. Walker, Janine L. Brown

Publication/Journal: Zoo Biology

Keywords: androgens, estrogens, estrus, hormones, progestins

2004

Endocrine monitoring and its application to the management of the giant panda

Authors: Nancy Czekala, Laura McGeehan, Karen Steinman, Li Xuebing, Fernando Gual-Sil

Publication/Journal: Zoo Biology

Keywords: eia, estrogen, giant panda, progestins, ria, urinary hormones

2003