thumbnail

Estimating carcass fat and protein in northern pintails during the nonbreeding season

Journal of Wildlife Management

By:

Links

  • The Publications Warehouse does not have links to digital versions of this publication at this time
  • Download citation as: RIS

Abstract

I used northern pintails (Anas acuta) collected from August through March 1979-82 in the Sacramento Valley, California to derive equations to predict ether-extracted carcass fat, carcass protein, and skeletal lean dry weight. Ether-extracted carcass fat was best predicted by total fat depot weight (wet skin, abdominal fat, and intestinal fat) (r2 = 0.94) and estimates based on carcass water content (r2 = 0.93-0.98). Measured carcass protein was best predicted by a multiple regression including total protein depot weight (breast muscles, leg muscles, and gizzard) and tarsus length (R2 = 0.79). I predicted skeletal lean dry weight by a multiple regression incorporating culmen, tarsus, and wing length (R2 = 0.77). Predicted carcass fat agreed well with measured carcass fat in an independent data set of 30 pintails using total fat depot (r2 = 0.92-0.96) and carcass water (r2 = 0.97-0.99), but predicted carcass protein agreed less well with measured protein.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Estimating carcass fat and protein in northern pintails during the nonbreeding season
Series title:
Journal of Wildlife Management
Volume
53
Issue:
1
Year Published:
1989
Language:
English
Contributing office(s):
Northern Prairie Wildlife Research Center
Description:
p. 123-129
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Journal of Wildlife Management
First page:
123
Last page:
129
Number of Pages:
6