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1 October 2018 Hematology of Free-ranging and Managed Texas Horned Lizards (Phrynosoma cornutum)
Michael S. McEntire, Ashley Pich, Martin Zordan, Diane Barber, Nathan Rains, Devin Erxleben, J. Jill Heatley, Carlos R. Sanchez
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Abstract

The Texas horned lizard (Phrynosoma cornutum) is a threatened species in Texas, US (federal category C2). Causes for population declines in this species are likely multiple. Disease and health assessments using traditional methods, including hematology, have been minimally studied in Phrynosoma spp. Apparently healthy, free-ranging Texas horned lizard from four locations in Texas (n=53) and captive Texas horned lizards maintained at the Fort Worth Zoo (n=16) were sampled to establish hematologic reference intervals. Within the populations studied, total leukocyte, heterophil, and eosinophil counts were higher in managed compared to free-ranging lizards. Leukocyte and heterophil counts of all lizards were lower during the ovipositional months of June and July.

© Wildlife Disease Association 2018
Michael S. McEntire, Ashley Pich, Martin Zordan, Diane Barber, Nathan Rains, Devin Erxleben, J. Jill Heatley, and Carlos R. Sanchez "Hematology of Free-ranging and Managed Texas Horned Lizards (Phrynosoma cornutum)," Journal of Wildlife Diseases 54(4), 802-808, (1 October 2018). https://doi.org/10.7589/2017-05-117
Received: 23 May 2017; Accepted: 9 January 2018; Published: 1 October 2018
JOURNAL ARTICLE
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KEYWORDS
Coccygeal vein
Complete blood count
health screening
hematology
Iguanidae
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