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Seasonal variation in diagnostic enzymes and biochemical constituents of captive northern bobwhites and passerines

Comparative Biochemistry and Physiology B

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DOI: 10.1016/0305-0491(87)90415-9

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Abstract

1. A variety of biochemical measurements were taken periodically in captive northern bobwhite (Colinus virginianus L.), European starlings (Sturnus vulgaris L.), red-winged blackbirds (Agelaius phoeniceus L.) and common grackles (Quiscalus quiscula L.) to determine whether baseline values remain sufficiently stable throughout the year for general clinical use in the absence of concurrent control specimens. 2. Variables included whole blood hematocrit and hemoglobin, plasma lactate dehydrogenase, alpha-hydroxybutyrate dehydrogenase, aspartate aminotransferase, alanine aminotransferase, creatine kinase, butyrylcholinesterase, alkaline phosphatase, glucose, albumin, total protein, creatinine, urea nitrogen, uric acid, cholesterol, and triglycerides, and brain acetylcholinesterase. Butyryl- and acetylcholinesterase were included because of their specific uses in toxicology. 3. Significant seasonal differences were detected for each of the variables except brain acetylcholinesterase in at least one of the species. Significant species differences were detected during at least one season for all of the variables measured. 4. All species were maintained outdoors, but only northern bobwhites came into reproductive condition and showed sex-differences in the clinical variables during their normal breeding season. 5. It was concluded that reference values for the 18 clinical variables measured could be calculated from our data for adult specimens of the species studied, and that results for one species cannot be extrapolated with certainty to any other species. 6. Estimated normal bounds for each of the 18 variables measured by commonly used clinical procedures are presented for reproductively quiescent northern bobwhites, European starlings, red-winged blackbirds, and common grackles.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Seasonal variation in diagnostic enzymes and biochemical constituents of captive northern bobwhites and passerines
Series title:
Comparative Biochemistry and Physiology B
DOI:
10.1016/0305-0491(87)90415-9
Volume
87
Issue:
4
Year Published:
1987
Language:
English
Contributing office(s):
Patuxent Wildlife Research Center
Description:
933-940
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
933
Last page:
940
Number of Pages:
8