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Use of labelled methionine to investigate the contribution of muscle proteins to egg production in zebra finches |
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| Authors: | D C Houston D Donnan P J Jones |
| Institution: | (1) Applied Ornithology Unit, Zoology Department, Glasgow University, G12 800 Glasgow, UK;(2) Institute of Cell and Population Biology, Edinburgh University, EH9 3JT Edinburgh, UK;(3) Present address: Research and Advisory Services, Scottish Natural Heritage, Directorate, 2/5 Anderson Place, EH6 5NP Edinburgh, UK |
| Abstract: | Many bird species show a loss of female muscle mass at the time of egg formation. In this study we investigated whether there was a causal link between the loss in muscle condition and the formation of egg proteins by feeding 35S-methionine to female zebra finches to label muscle proteins. When these birds subsequently bred the isotope was transferred to the egg proteins: isotope loss from female muscle tissue was significantly greater in birds which had bred than in control groups which had not. |
| Keywords: | Muscle proteins Egg proteins 35S-methionine Zebra finch |
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