SYMPOSIA PAPER Published: 01 January 1977
STP27060S

Chemosterilant Evaluation in Coyotes: Parameters for Animal Selection and Laboratory Methodology

Source

Investigations were conducted to establish criteria for selecting animals used in coyote chemosterilant research. Conclusions based on results from this study indicate that pen-raised pregnant female coyotes are preferable to wild coyotes for evaluating chemicals for abortifacient properties. Dogs were more practical than coyotes for preliminary out-of-season testing of antispermatogenic agents. Wild or pen-raised coyotes were suitable for use when necrotizing agents were used.

Selected standard hematologic and blood chemistry determination techniques were applicable for the purpose of monitoring systemic side effects of chemosterilant compounds.

Efficacy determination methodology was reviewed for practicality and accuracy. Unilateral testicular ablation was more suitable than biopsy techniques for collection of testicular tissue for histological examination.

Author Information

Gates, NL
U.S. Department of Agriculture, Agricultural Research Service, Dubois, Idaho
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Details
Developed by Committee: E35
Pages: 106–113
DOI: 10.1520/STP27060S
ISBN-EB: 978-0-8031-4698-3
ISBN-13: 978-0-8031-0199-9