Relative toxicity of lead and selected substitute shot types to game farm mallards
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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.
Study Area
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 |
DOI | 10.2307/3798314 |
Volume | 31 |
Issue | 2 |
Year Published | 1967 |
Language | English |
Publisher | Wiley |
Contributing office(s) | Patuxent Wildlife Research Center |
Description | 5 p. |
First page | 253 |
Last page | 257 |
Country | United States |
State | Maryland, Pennsylvania |
Other Geospatial | Patuxent Wildlife Research Center, Remington Farms, Rolling Rocks Game Farm |