Record Display for the EPA National Library Catalog

RECORD NUMBER: 4 OF 7

OLS Field Name OLS Field Data
Main Title Interpretation of Toxicity Response of Bobwhite Quail with Respect to Duration of Exposure.
Author Shirazi, M. A. ; Bennett, R. S. ; Ringer, R. K. ;
CORP Author Corvallis Environmental Research Lab., OR. ;Michigan State Univ., East Lansing. Center for Environmental Toxicology.
Publisher c1994
Year Published 1994
Report Number EPA/600/J-94/298;
Stock Number PB94-190527
Additional Subjects Birds ; Exposure ; Pesticides ; Toxicity tests ; Response ; Mortality ; Dosage ; Concentration(Composition) ; Toxic tolerances ; Diets ; Adults ; Comparison ; Age ; Mathematical models ; Graphs(Charts) ; Reprints ; Colinus Virginianus ; Bobwhites ; LC50 ; Carbofuran
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NTIS  PB94-190527 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 11/11/1994
Collation 11p
Abstract
Avian dietary toxicity tests were conducted with seven pesticides, two age groups (2 and 16 weeks old) of northern bobwhite (Colinus virginianus) and two durations (5 and 28 days) of exposure. Results were analyzed with an emphasis placed on comparing mortalities on similar test conditions. An analysis that used the entire dose-time-response results led to the calculation of a common measure (asymptotic rate e) of the temporal development of the response surface and served as a basis of comparison of diverse test results. The asymptotic median lethal concentrations were designated by ALC50 and the median lethal concentrations at the end of a test period by LC50. It was found that: (1) Young birds in 5- and 28-day tests were more sensitive to incremental increases in the duration of exposure than adults. (2) Young birds were less sensitive to incremental increases of dietary concentration than adults only in the 5-day test and displayed delayed response patterns in six of the seven chemicals in those tests.