Condition Parameters and Organ Measurements of Pheasants from Good, Fair, and Poor Range in Illinois

Publication Type:Journal Article
Year of Publication:1969
Authors:Anderson, WL
Journal:The Journal of Wildlife Management
Date Published:1969
ISBN Number:0022541X
Keywords:Phasianidae, Phasianus, Phasianus colchicus
Abstract:Weights of selected muscular tissues, fat deposits, and internal organs were determined for 75 hen pheasants (Phasianus colchicus), 58 juveniles and 17 adults, captured on areas located near Sibley (good range), Humboldt (fair range), and Neoga (poor range), Illinois, during October, 1966, January, 1967, and February, 1968. Hens from Neoga had larger sternal muscles, entire legs, ovaries, oviducts, and parathyroid glands, and smaller pancreases and adrenal glands (juveniles only) than hens from Sibley. Hens from Humboldt exhibited fewer differences, having, on the average, larger sternal muscles and smaller adrenal glands (juveniles only) than Sibley birds. Mean weights of the entire body, fat strip, visceral fat, gizzards, hearts, kidneys, livers, lungs, spleens, and thyroid glands, and mean lengths of intestines, ceca, and colons did not exhibit discernible area-to-area differences. Juvenile hens from Sibley and from Humboldt survived similar lengths of time when subjected to complete starvation during November, 1966, and January, 1967. It was concluded, in part, that during fall and winter months in Illinois (1) pheasants in poor and in fair range probably do not suffer from gross imbalances of basic organic nutrients, (2) juvenile pheasants in poor and in fair range apparently are stressed less than juveniles in good range, and (3) pheasants in poor range possibly absorb less calcium than pheasants in fair and in good range.
Short Title:The Journal of Wildlife Management
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith