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Blood hemoglobin content and metabolic performance of Arctic Tern chicks Sterna paradisaea
This study was designed to determine whether the development of an increased aerobic capacity (increased potential for oxygen uptake) during the initial growth stages of hatchlings is associated with an increase in blood hemoglobin content. We measured the resting (at thermoneutrality) and maximum (cold induced)b oxygen uptake of Arctic Tern chicks from 0 to 9 days of age. In addition, blood hemoglobin content and hematocrit were measured. The results show that in spite of a marked increase in both resting and maximum oxygen uptake, indicating increased metabolic performance, there was a slight decrease in blood hemoglobin content during the first few days of development. A residual analysis, made to eliminate the effect of age, showed that blood hemoglobin content of individual chicks, blood hemoglobin contents is not a limiting factor for oxygen uptake by Arctic Tern chicks.
History
Journal
Journal of avian biologyVolume
27Pagination
112 - 117Location
London, Eng.Publisher DOI
ISSN
0908-8857Language
engPublication classification
C Journal article; C1.1 Refereed article in a scholarly journalCopyright notice
1996, WileyUsage metrics
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