Bias between two methods of albumin measurement in the white rhinoceros, Ceratotherium simum

2020 ◽  
Vol 49 (1) ◽  
pp. 91-94
Author(s):  
Emma H. Hooijberg ◽  
Carolyn Cray ◽  
Michele Miller ◽  
Peter Buss ◽  
Gerhard Steenkamp ◽  
...  
Keyword(s):  
Ceratotherium Simum ◽  
White Rhinoceros

SEROLOGICAL EVIDENCE OF COXIELLA BURNETII INFECTION IN THE WHITE RHINOCEROS (CERATOTHERIUM SIMUM) IN SOUTH AFRICA

2021 ◽  
Vol 52 (2) ◽  
Author(s):  
Kyle A. Donnelly ◽  
Michele A. Miller ◽  
Douw Grobler ◽  
Peter Buss ◽  
Charles Van Niekerk ◽  
...  
Keyword(s):  
South Africa ◽  
Coxiella Burnetii ◽  
Serological Evidence ◽  
Ceratotherium Simum ◽  
White Rhinoceros

Baseline Hematologic Results for Free-ranging White Rhinoceros (Ceratotherium simum) in Kruger National Park, South Africa

2015 ◽  
Vol 51 (4) ◽  
pp. 916-922 ◽  
Author(s):  
Michele Miller ◽  
Peter Buss ◽  
Rachel Wanty ◽  
Sven Parsons ◽  
Paul van Helden ◽  
...  
Keyword(s):  
South Africa ◽  
National Park ◽  
Kruger National Park ◽  
Ceratotherium Simum ◽  
White Rhinoceros ◽  
Free Ranging

scholarly journals RADIOGRAPHIC PROTOCOL AND NORMAL ANATOMY OF THE HIND FEET IN THE WHITE RHINOCEROS (CERATOTHERIUM SIMUM)

2014 ◽  
Vol 56 (2) ◽  
pp. 124-132 ◽  
Author(s):  
Robert J. Dudley ◽  
Simon P. Wood ◽  
John R. Hutchinson ◽  
Renate Weller
Keyword(s):  
Normal Anatomy ◽  
Ceratotherium Simum ◽  
White Rhinoceros

scholarly journals Serum protein electrophoresis in healthy and injured southern white rhinoceros (Ceratotherium simum simum)

PLoS ONE ◽  
2018 ◽  
Vol 13 (7) ◽  
pp. e0200347 ◽  
Author(s):  
Emma H. Hooijberg ◽  
Michele Miller ◽  
Carolyn Cray ◽  
Peter Buss ◽  
Gerhard Steenkamp ◽  
...  
Keyword(s):  
Serum Protein ◽  
Protein Electrophoresis ◽  
Serum Protein Electrophoresis ◽  
Ceratotherium Simum ◽  
White Rhinoceros ◽  
Southern White Rhinoceros ◽  
Ceratotherium Simum Simum

scholarly journals Activation of Southern White Rhinoceros (Ceratotherium simum simum) Estrogen Receptors by Phytoestrogens: Potential Role in the Reproductive Failure of Captive-Born Females?

Endocrinology ◽  
2012 ◽  
Vol 153 (3) ◽  
pp. 1444-1452 ◽  
Author(s):  
Christopher Tubbs ◽  
Phillip Hartig ◽  
Mary Cardon ◽  
Nicole Varga ◽  
Matthew Milnes
Keyword(s):  
Estrogen Receptors ◽  
Potential Role ◽  
Physiological Role ◽  
Reproductive Failure ◽  
Vertebrate Species ◽  
Ceratotherium Simum ◽  
White Rhinoceros ◽  
Southern White Rhinoceros ◽  
Ceratotherium Simum Simum

The captive southern white rhinoceros (SWR; Ceratotherium simum simum) population serves as an important genetic reservoir critical to the conservation of this vulnerable species. Unfortunately, captive populations are declining due to the poor reproductive success of captive-born females. Captive female SWR exhibit reproductive problems suggested to result from continual ovarian follicular activity and prolonged exposure to endogenous estrogen. However, we investigated the potential role of exogenous dietary phytoestrogens in the reproductive failure of SWR by cloning and characterizing in vitro phytoestrogen binding and activation of recombinant SWR estrogen receptors (ESR). We compared those characteristics with recombinant greater one-horned rhinoceros (GOHR; Rhinoceros unicornis) ESR, a species that receives similar captive diets yet reproduces relatively well. Our results indicate that phytoestrogens bind rhino ESR in a manner similar to other vertebrate species, but there are no differences found in phytoestrogen binding affinity of SWR ESR compared with GOHR ESR. However, species-specific differences in ESR activation by phytoestrogens were detected. The phytoestrogen coumestrol stimulated greater maximal activation of SWR ESR1 than GOHR ESR1. SWR ESR2 were also more sensitive to phytoestrogens and were activated to a greater extent by both coumestrol and daidzein. The concentrations in which significant differences in ESR activation occurred (10−7 to 10−5m) are consistent with circulating concentrations measured in other vertebrate species. Taken together, these findings suggest that phytoestrogens potentially pose a risk to the reproductive health of captive SWR. However, additional studies are needed to further clarify the physiological role of dietary phytoestrogens in the reduced fertility of this species.

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