AVIS-IBIS

Birds of Indian Subcontinent

Seasonal Variations in Plasma Testosterone Level in Male Eastern Wild Turkeys

Publication Type:Journal Article
Year of Publication:1977
Authors:Lisano, ME, Kennamer, JEarl
Journal:The Journal of Wildlife Management
Volume:41
Issue:2
Date Published:1977
ISBN Number:0022541X
Keywords:Meleagris, Meleagris gallopavo, Phasianidae
Abstract:Testosterone level was determined, by radioimmunoassay, on 137 plasma samples obtained from male eastern wild turkeys (Meleagris gallopavo) over a 15-month period, in Alabama. Ninety-three samples were obtained from 3 pen-reared birds by making collections every 2 weeks for 62 consecutive weeks; 14 samples were from trapped birds; and 30 were from gobblers killed during the regular spring hunting season. Plasma testosterone levels for pen-reared birds at 6 weeks of age (July 1974) were 32-63 ng/100 ml; whereas those at 34 weeks of age (January 1975) and just prior to breeding season were 87-108 ng/100 ml. Mean plasma testosterone level in January-February for the mostly adult trapped birds was 202.2 ± 61.9 ng/100 ml compared to 146.0 ± 62.3 ng/100 ml for the subadult pen-reared birds. Values for the mostly adult gobblers killed during the March-April hunting season was 344.9 ± 110.8 ng/100 ml compared to 254.4 ± 140.5 ng/100 ml for the subadult pen-reared turkeys. Changes in behavior and body conformation in relation to changes in plasma testosterone level are discussed for the three pen-reared turkeys.
URL:http://www.jstor.org/stable/3800592
Short Title:The Journal of Wildlife Management
Taxonomic name: 
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