Results 111 to 120 of about 785 (141)
The effects of domestic sewage on a captive flock of giant Canada geese (Branta canadensis maxima)
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Competing hypotheses that have been advanced to explain the phenomenon of posthatch brood mixing by waterfowl can be distinguished by whether they assume that adults experience costs in rearing nidifugous offspring. To test this, time budget data were collected for giant Canada geese (Branta canadensis maxima) at Cambridge, Ontario, in 1990.
Laura M. Seddon, Thomas D. Nudds
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During molt-induced atrophy of the pectoralis muscle of the Giant Canada Goose (Branta canadensis maxima), the zinc content of the muscle was significantly reduced (p≤0.0139), though the concentration of zinc per unit weight of muscle appeared higher (p≤0.0232).
B. W. C. Rosser, J. C. George
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Adult male Branta canadensis maxima were collected from a nonmigratory feral population during their premolt, molt and postmolt phases. Lean dry weight of the pectoralis muscle decreased significantly (p less than or equal to 0.0001) during molt, as a result of disuse atrophy.
B W, Rosser, J C, George
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Adult male Giant Canada Geese, collected from a nonmigratory wild population during their premoult, moult, and postmoult periods were studied for changes in the pectoralis muscle. A significant (p ≤ 0.0001) drop in the lean dry weight of the pectoralis muscle during the moult period when the birds were flightless was attributed to disuse atrophy.
B. W. C. Rosser, J. C. George
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