Test of Grit Types in Alleviating Lead Poisoning in Mallards PDF Download
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Author: Alfred J. Godin
Publisher:
ISBN:
Category : Feed additives
Languages : en
Pages : 16
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Book Description
Mallard ducks (Anas platyrhynchos) were given either 0, 2, or 4 No. 6 lead shot in combination with 4 grit treatments; no grit, coarse sand, mica granite, and crushed oystershell. Each combination was replication three times. Ducks were maintained on a diet of whole corn. An analysis of variance indicated no significant differences in mortality in relation to grit type, but a significant difference (at 0.05 level) in mortality between the lead shot doses. Oystershell grit apparently reduced mortality of ducks dosed with 4 shot but not to a degree statisticallty significant. In all treatments, mortality was closely associated with shot retentiion. Ducks retaining shot for 2 weeks usually died.
Author: Alfred J. Godin
Publisher:
ISBN:
Category : Feed additives
Languages : en
Pages : 16
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Book Description
Mallard ducks (Anas platyrhynchos) were given either 0, 2, or 4 No. 6 lead shot in combination with 4 grit treatments; no grit, coarse sand, mica granite, and crushed oystershell. Each combination was replication three times. Ducks were maintained on a diet of whole corn. An analysis of variance indicated no significant differences in mortality in relation to grit type, but a significant difference (at 0.05 level) in mortality between the lead shot doses. Oystershell grit apparently reduced mortality of ducks dosed with 4 shot but not to a degree statisticallty significant. In all treatments, mortality was closely associated with shot retentiion. Ducks retaining shot for 2 weeks usually died.
Author: Alfred J. Godin
Publisher:
ISBN:
Category : Feed additives
Languages : en
Pages : 16
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Book Description
Mallard ducks (Anas platyrhynchos) were given either 0, 2, or 4 No. 6 lead shot in combination with 4 grit treatments; no grit, coarse sand, mica granite, and crushed oystershell. Each combination was replication three times. Ducks were maintained on a diet of whole corn. An analysis of variance indicated no significant differences in mortality in relation to grit type, but a significant difference (at 0.05 level) in mortality between the lead shot doses. Oystershell grit apparently reduced mortality of ducks dosed with 4 shot but not to a degree statisticallty significant. In all treatments, mortality was closely associated with shot retentiion. Ducks retaining shot for 2 weeks usually died.
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Author:
Publisher:
ISBN:
Category : Lead poisoning in animals
Languages : en
Pages : 9
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Book Description
Author: Alfred J. Godin
Publisher:
ISBN:
Category : Ducks
Languages : en
Pages : 9
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Book Description
Mallard ducks (Anas platyrhynchos) were given either 0, 2, or 4 No. 6 lead shot in combination with 4 grit treatments; no grit, coarse sand, mica granite, and crushed oystershell. Each combination was replication three times. Ducks were maintained on a diet of whole corn. An analysis of variance indicated no significant differences in mortality in relation to grit type, but a significant difference (at 0.05 level) in mortality between the lead shot doses. Oystershell grit apparently reduced mortality of ducks dosed with 4 shot but not to a degree statisticallty significant. In all treatments, mortality was closely associated with shot retentiion. Ducks retaining shot for 2 weeks usually died.
Author: Patuxent Wildlife Research Center
Publisher:
ISBN:
Category : Lead
Languages : en
Pages : 36
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Book Description
Poisoning of North American waterfowl resulting from the ingestion of lead shot by ducks, geese, and swans causes an estimated annual mortality of 2% to 3% of the population. To alleviate this problem the search for a suitable substitute for lead has been underway since the early 1950's. Proposed substitutes for lead shot were evaluated in a series of acut toxicity tests with pen-reared mallards. Most candidate materials were as toxic to ducks as commercial lead shot. Coating or alloying lead with other materials only delayed mortality among dosed ducks.
Author: Val Nolan Jr.
Publisher: Springer Science & Business Media
ISBN: 1475749015
Category : Science
Languages : en
Pages : 341
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Book Description
Current Ornithology publishes authoritative, up-to-date, scholarly reviews of topics selected from the full range of current research in avian biology. Topics cover the spectrum from the molecular level of organization to population biology and community ecology. The series seeks especially to review (1) fields in which an abundant recent literature will benefit from synthesis and organization, or (2) newly emerging fields that are gaining recognition as the result of recent discoveries or shifts in perspective, or (3) fields in which students of vertebrates may benefit from comparisons of birds with other classes. All chapters are invited, and authors are chosen for their leadership in the subjects under review.
Author: United States. Congress. Senate. Committee on the Judiciary. Subcommittee on Administrative Practice and Procedure
Publisher:
ISBN:
Category : Firearms
Languages : en
Pages : 326
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Book Description
Author: William H. Goudy
Publisher:
ISBN:
Category : Bird banding
Languages : en
Pages : 1194
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Book Description
Singing-ground surveys of the American woodcock indicate that breeding populations have increased gradually over the past 7 years while production, as indicated by wing-collection surveys, has remained relatively stable. The woodcock harvest, meanwhile, has probably more than doubled during the past decade. This suggests that while woodcock are probably becoming more important to North American sportsmen, hunting mortality is still relatively unimportant.
Author: United States Department of the Interior. U.S. Fish and Wildlife Service. Bureau of Sport Fisheries and Wildlife, author
Publisher:
ISBN:
Category : Bird populations
Languages : en
Pages : 56
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Book Description
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages :
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