Oxygen content . | Time (min) . | Breathing frequency (min–1) . | Tidal volume (ml kg–1) . | Air convection requirement (ml mmol–1) . |
---|---|---|---|---|
Bar-headed geese | ||||
21% O2 | 0 | 11.9±0.6 | 47.8±1.9* | 690±110 |
9% O2 | 5 | 16.7±1.7 | 54.1±4.0* | 789±116 |
10 | 16.4±1.5 | 58.5±4.7*,† | 777±96 | |
15 | 16.5±1.9 | 54.5±3.6* | 744±104 | |
20 | 17.2±2.6† | 54.1±4.8* | 715±92 | |
30 | 16.2±1.4 | 56.8±4.1* | 740±107 | |
40 | 16.5±2.0 | 52.6±5.2* | 737±132 | |
50 | 17.4±1.4† | 53.9±4.4* | 735±95 | |
60 | 16.8±1.7† | 54.9±3.3* | 731±99 | |
21% O2 | 65 | 12.1±0.9* | 44.2±3.8* | 566±89 |
70 | 12.1±0.6* | 44.7±3.5* | 617±105 | |
75 | 12.9±0.9* | 45.5±4.0* | 680±131 | |
80 | 12.7±0.8 | 44.5±3.6* | 620±91 | |
85 | 13.0±0.6 | 45.9±2.3* | 606±91 | |
90 | 12.8±0.5 | 44.3±3.6* | 655±104 | |
Greylag geese | ||||
21% O2 | 0 | 16.2±2.4 | 29.5±4.7 | 560±126 |
9% O2 | 5 | 16.4±0.8 | 36.8±1.2 | 579±84 |
10 | 15.3±1.1 | 39.7±0.8 | 595±102 | |
15 | 16.0±0.9 | 40.4±0.5 | 624±121 | |
20 | 16.1±0.9 | 40.7±0.5† | 541±36 | |
30 | 16.4±1.1 | 42.0±1.1† | 582±76 | |
40 | 17.8±2.0 | 39.0±1.0 | 592±68 | |
50 | 16.1±1.1 | 42.9±1.2† | 643±124 | |
60 | 15.9±1.2 | 42.8±1.2† | 577±85 | |
21% O2 | 65 | 17.8±1.1 | 30.8±2.7 | 425±45 |
70 | 17.3±1.7 | 29.5±2.6 | 458±79 | |
75 | 17.5±2.4 | 29.0±3.0 | 466±98 | |
80 | 17.1±2.0 | 29.3±2.6 | 524±149 | |
85 | 17.0±2.1 | 28.1±2.4 | 551±196 | |
90 | 16.3±1.2 | 30.2±1.6 | 533±159 |
Oxygen content . | Time (min) . | Breathing frequency (min–1) . | Tidal volume (ml kg–1) . | Air convection requirement (ml mmol–1) . |
---|---|---|---|---|
Bar-headed geese | ||||
21% O2 | 0 | 11.9±0.6 | 47.8±1.9* | 690±110 |
9% O2 | 5 | 16.7±1.7 | 54.1±4.0* | 789±116 |
10 | 16.4±1.5 | 58.5±4.7*,† | 777±96 | |
15 | 16.5±1.9 | 54.5±3.6* | 744±104 | |
20 | 17.2±2.6† | 54.1±4.8* | 715±92 | |
30 | 16.2±1.4 | 56.8±4.1* | 740±107 | |
40 | 16.5±2.0 | 52.6±5.2* | 737±132 | |
50 | 17.4±1.4† | 53.9±4.4* | 735±95 | |
60 | 16.8±1.7† | 54.9±3.3* | 731±99 | |
21% O2 | 65 | 12.1±0.9* | 44.2±3.8* | 566±89 |
70 | 12.1±0.6* | 44.7±3.5* | 617±105 | |
75 | 12.9±0.9* | 45.5±4.0* | 680±131 | |
80 | 12.7±0.8 | 44.5±3.6* | 620±91 | |
85 | 13.0±0.6 | 45.9±2.3* | 606±91 | |
90 | 12.8±0.5 | 44.3±3.6* | 655±104 | |
Greylag geese | ||||
21% O2 | 0 | 16.2±2.4 | 29.5±4.7 | 560±126 |
9% O2 | 5 | 16.4±0.8 | 36.8±1.2 | 579±84 |
10 | 15.3±1.1 | 39.7±0.8 | 595±102 | |
15 | 16.0±0.9 | 40.4±0.5 | 624±121 | |
20 | 16.1±0.9 | 40.7±0.5† | 541±36 | |
30 | 16.4±1.1 | 42.0±1.1† | 582±76 | |
40 | 17.8±2.0 | 39.0±1.0 | 592±68 | |
50 | 16.1±1.1 | 42.9±1.2† | 643±124 | |
60 | 15.9±1.2 | 42.8±1.2† | 577±85 | |
21% O2 | 65 | 17.8±1.1 | 30.8±2.7 | 425±45 |
70 | 17.3±1.7 | 29.5±2.6 | 458±79 | |
75 | 17.5±2.4 | 29.0±3.0 | 466±98 | |
80 | 17.1±2.0 | 29.3±2.6 | 524±149 | |
85 | 17.0±2.1 | 28.1±2.4 | 551±196 | |
90 | 16.3±1.2 | 30.2±1.6 | 533±159 |