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Seasonal carcass composition and energy balance of female black ducks in Maine

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Seasonal carcass composition and energy balance of female black ducks in Maine; 1982; Article; Journal; Condor; Reinecke, K.J.; Stone, T.L.; Owen, R.B.

Summary

Female Black Ducks (Anas rubripes) collected in Maine during the summer, fall, and winter of 1974-1976 showed significant seasonal variation in body weight, nonfat dry weight, gizzard and pectoral muscle weight, and fat, moisture, and protein content. Variation of body weight within and among seasons was correlated more strongly with carcass protein content, and with fat content during seasons of heavy lipid deposition, than with three structural size variables (culmen, tarsus, and sternum). Regression equations including fat and protein as independent variables accounted for 80-90% of the annual and seasonal variation in body weight; structural size variables alone accounted for less than 30%. Immature females averaged 54 and 99 g [...]

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Type Scheme Key
local-index unknown 5221747
local-pk unknown 5221747
series unknown Condor

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journalCondor
parts
typevolume
value84
typeissue
value4
languageEnglish
citationTypeArticle

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