| 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. |
| Genre: | Article |
| ProdID: | 1001387 |
| Citation Author: | Miller, M. R. |
| Citation Contributing Office: | Northern Prairie Wildlife Research Center |
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| Citation End Page: | 129 |
| Citation Issue: | 1 |
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| Citation Language: | English |
| Citation Larger Work Title: | Journal of Wildlife Management |
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| Citation Number Of Pages: | 6 |
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| Citation Phsyical Description: | p. 123-129 |
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| Citation Search Results Text: | Estimating carcass fat and protein in northern pintails during the nonbreeding season; 1989; Article; Journal; Journal of Wildlife Management; Miller, M. R. |
| Citation Start Page: | 123 |
| Citation Volume: | 53 |
| Citation Year: | 1989 |
| Type: | citation/reference |
| Text: | Estimating carcass fat and protein in northern pintails during the nonbreeding season; 1989; Article; Journal; Journal of Wildlife Management; Miller, M. R. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Sun, 1 Jan 1989 00:00 -0600 |
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