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

Review of wallowing in pigs: Description of the behaviour and its motivational basis

Authors: M. B. M. Bracke

Publication/Journal: Applied Animal Behaviour Science

Keywords: animal welfare, motivation, mud pool, pigs, wallowing behavior, wallowing behaviour

2011

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