Equus grevyi

species monograph

Identification of progesterone and 5α-dihydroprogesterone (5α-DHP) in zebras by two-dimensional high-performance liquid chromatography and their dependence on the state of reproduction

Abstract 10.1002/(SICI)1098-2361(1999)18:43.3.CO;2-S Because of its low levels in late pregnancy, the relationship of progesterone to pregnancy maintenance in Equidae is not obvious. This study investigated the levels of progesterone (4-pregnane-3,20-dione; P4) and 5α-dihydroprogesterone (5α-DHP) during pregnancy in zebras in relation to reproductive state. Blood samples from female zebras (Equus burchelli, E. zebrahartmannae, E. grevyi) were […]

Urinary steroid evaluations to monitor ovarian function in exotic ungulates: X. Pregnancy diagnosis in Perissodactyla

Abstract 10.1002/zoo.1430130205.abs Enzymeimmunoassays (EIAs) for estrone conjugates (EC), pregnanediol-3-glucuronide (PDG), and C-19 and C-21 progesterone metabolites (C-19/C-21) were used to analyze urine samples from four nondomestic equid species, four tapir species, and two rhinoceros species in an attempt to identify if these assays could be used for diagnosing and monitoring pregnancy. The same urine samples […]

Equid play ethogram

An ethogram of play behavior among equids was developed. Several key English-language studies on equids were reviewed to derive a preliminary inventory of specific behaviors to be included in the ethogram. Our primary observations were based on a herd of semi-feral Shetland-type ponies kept at New Bolton Center, University of Pennsylvania School of Veterinary Medicine, […]

A Case of Adoption and Allonursing in Captive Plains Zebra (Equus burchellii)

Although allonursing (allowing non-filial offspring to suckle) can be a costly behaviour, it has been reported for many mammals including ungulate species. However, such behaviour is very rare in equids. This is the first report on adoption and allonursing in captive plains zebra (Equus burchellii), recorded in the Dvu˚ r Králové Zoo, Czech Republic.We observed […]

Equine behavioral enrichment toys as tools for non-invasive recovery of viral and host DNA

Direct collection of samples from wildlife can be difficult and sometimes impossible. Non-invasive remote sampling for the purpose of DNA extraction is a potential tool for monitoring the presence of wildlife at the individual level, and for identifying the pathogens shed by wildlife. Equine herpesviruses (EHV) are common pathogens of equids that can be fatal […]