Non-invasive assessment of fecal glucocorticoid and androgen metabolites in the pygmy hippopotamus (Choeropsis liberiensis)

Authors: Gabriella L. Flacke, Linda M. Penfold, Franz Schwarzenberger, Graeme B. Martin, César A. Rosales-Nieto, Monique C. J. Paris

Publication/Journal: General and Comparative Endocrinology

Keywords: acth challenge, cortisol, enzyme immunoassay (eia), Fecal steroid hormone metabolites, Pygmy hippo, testosterone

2023

Activity and Pool Use in Relation to Temperature and Water Changes in Zoo Hippopotamuses (Hippopotamus amphibious)

Authors: Eduardo J Fernandez, Martin Ramirez, Nancy C Hawkes

Publication/Journal: Animals

Keywords: exhibit use, hippo, hippo enclosures, pool temperature, pool use, water change, welfare, zoo

2020

Achieving optimal welfare for the Nile hippopotamus (Hippopotamus amphibius) in North American zoos and aquariums

Authors: Kaylin S. Tennant, Valerie D. Segura, Megan C. Morris, Kristen Denninger Snyder, David Bocian, Dan Maloney, Terry L. Maple

Publication/Journal: Behavioural Processes

Keywords: captivity, exhibit design, hippopotamus, welfare, wellness

2018

Demographics of polycystic kidney disease and captive population viability in pygmy hippopotamus (Choeropsis liberiensis)

Authors: Gabriella L. Flacke, Joseph L. Tomkins, Robert Black, Beatrice Steck

Publication/Journal: Zoo Biology

Keywords: inbreeding coefficient, life table, longevity, pedigree, population viability, survival analysis

2017

A retrospective analysis of mortality in captive pygmy hippopotamus (Choeropsis liberiensis) from 1912 to 2014

Authors: Gabriella L. Flacke, Suzana Tkalčić, Beatrice Steck, Kristin Warren, Graeme B. Martin

Publication/Journal: Zoo Biology

Keywords: encephalomyocarditis virus (emcv), leptospirosis, obesity, pathology, polycystic kidney disease (pkd), stillbirth

2016

Female Nile hippopotamus (Hippopotamus amphibius) space use in a naturalistic exhibit

Authors: T. E. Blowers, J. M. Waterman, C. W. Kuhar, T. L. Bettinger

Publication/Journal: Zoo Biology

Keywords: arcview, behavior, behaviour, captive, water depth

2012

Suppression of ovulation in Nile Hippopotamus (Hippopotamus amphibious) using melengestrol acetate-treated feed or high dose Depo-Provera injection

Authors: Catharine J. Wheaton, Sharon Joseph, Kelly Reid, Tricia Webster, Mary Richards, Holly M. Forde, Anne Savage

Publication/Journal: Zoo Biology

Keywords: 5-α-reduced progesterone metabolites, captive, contraception, reproduction

2007

Body weight as an effective tool for determination of onset of puberty in captive female Nile hippopotami (Hippopotamus amphibious)

Authors: Catharine J. Wheaton, Sharon Joseph, Kelly Reid, Tricia Webster, Mary Richards, Anne Savage

Publication/Journal: Zoo Biology

Keywords: 5-α-reduced progesterone metabolites, captive, progestogens, reproduction

2006

First documentation of flehmen in a common hippopotamus (Hippopotamus amphibius)

Authors: Thomas A. Zapico

Publication/Journal: Zoo Biology

Keywords: evolutionary remnant, hippo, overt estrus, vomeronasal organ

1999