Record Display for the EPA National Library Catalog


Main Title Changes in Mallard 'Anas platyrhynchos' Serum Chemistry Due to Age, Sex, and Reproductive Condition.
Author Fairbrother, A. ; Craig, M. A. ; Walker, K. ; O'Loughlin, D. ;
CORP Author Corvallis Environmental Research Lab., OR. ;Oregon State Univ., Corvallis. School of Veterinary Medicine. ;California Univ., Davis. School of Veterinary Medicine.
Publisher c1990
Year Published 1990
Report Number EPA/600/J-90/023;
Stock Number PB90-219684
Additional Subjects Ducks ; Blood chemical analysis ; Reproduction(Biology) ; Bilirubin ; Cholinesterase ; Tables(Data) ; Graphs(Charts) ; Lactate dehydrogenase ; Creatinine ; Reprints ; Age factors ; Sex factors ; Alanine aminotransferase
Library Call Number Additional Info Location Last
NTIS  PB90-219684 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 13p
Selected serum constituents were analyzed from 50 adult mallards (Anas platyrhynchos) of both sexes during several stages of reproduction: pre-egg laying, egg-laying, incubating, molting, and postreproductive. Similar assays were conducted on sera from duckling 5 to 58 days old. Values for total protein (TPR), albumin (ALB), glucose (GLU), gamma-glutamyl transferase (GGT), calcium (CA), phosphorus (PHOS) and magnesium (MG) differed by sex. When all data were combined and analyzed for sex-related differences within each reproductive condition separately, all assays except lactate dehydrogenase (LD-L), cholinesterase (CHE), alanine aminotransferase (ALT), aspartate aminotransferase (AST), creatinine (CRN) and direct bilirubin (BIDI) differed between sexes during one or more reproductive periods. Each assay showed differences among the various reproductive conditions regardless of gender. The pattern of change differed between sexes.