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

Journal of Wildlife Management
By: , and 

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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