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Relative toxicity of lead and selected substitute shot types to game farm mallards

Journal of Wildlife Management

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Abstract

The acute toxicity of lead, three types of plastic-coated lead, two lead-magnesium alloys, iron, copper, zinc-coated iron, and molybdenum-coated iron shot were tested in year-old male game farm mallards. Mallards (Anus platyrhynchos) were fed eight number 6 shot of each type and observed for a period of 60 days. Ducks used totaled 230 and most shot types were tested in three replicates of 8 ducks each. Mortality and losses of body weight were the criteria used for judging toxicity. Three types of plastic-coated lead shot were as toxic (93 percent) as the commercial lead shot (96 percent). The average mortality in mallards fed lead-magnesium alloy shot was less (58 percent) than that occurring in birds fed commercial lead shot. Mortality among mallards fed iron, copper, zinc-coated iron or molybdenum-coated iron shot was significantly less than in birds fed lead shot, and was not significantly greater than the conrtols.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Relative toxicity of lead and selected substitute shot types to game farm mallards
Series title:
Journal of Wildlife Management
Volume
31
Issue:
2
Year Published:
1967
Language:
English
Contributing office(s):
Patuxent Wildlife Research Center
Description:
253-257
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Journal of Wildlife Management
First page:
253
Last page:
257
Number of Pages:
5