title: Cardiovascular and organ weight adaptations as related to flight activity in birds.
abstract: Pectoral muscle, heart and body weight, wing surface, blood volume, hemoglobin content and blood oxygen capacity were measured in three birds: pigeon, gull and hen. A relationship was found between flying activity and organ weight, blood volume and hematocrit. No significant differences were found in the O2 carrying capacity of hemoglobin in these birds.
authors.forename: G
authors.initials: G
authors.lastname: Viscor
authors.forename: M S
authors.initials: MS
authors.lastname: Marqués
authors.forename: J
authors.initials: J
authors.lastname: Palomeque
mesh_terms: D000222:Adaptation, Physiological; D000818:Animals; D001717:Birds / Q000033:anatomy & histology*; D001810:Blood Volume; D002645:Chickens / Q000033:anatomy & histology; D010856:Columbidae / Q000033:anatomy & histology; D005426:Flight, Animal; D006321:Heart / Q000033:anatomy & histology*; D006400:Hematocrit; D006454:Hemoglobins / Q000032:analysis; D009929:Organ Size; D010100:Oxygen / Q000097:blood; D013045:Species Specificity; D014921:Wings, Animal / Q000033:anatomy & histology
chemical_list: D006454:Hemoglobins; D010100:Oxygen