title: Diurnal changes in the haemoglobin level, red blood cell number and mean corpuscular haemoglobin in foals during the first 13 weeks of life and in their lactating mothers.
abstract: 1. In six foals and their mothers (of Standard breed) diurnal changes in the haemoglobin level, red blood cell number and mean corpuscular haemoglobin during the first 13 weeks of foal life were studied. 2. Studies begun when a foal reached 7 days of age and were repeated every two weeks till 13 weeks of foal life. Blood was taken every 6 hr in foals and every 4 hr in mares. 3. No diurnal rhythmicity in parameters studied either in foals or in mares was found. 4. Decrease of haemoglobin level in lactating mares (14.0-12.5 g/100 ml) without changes in red blood cell number were observed. Mean corpuscular haemoglobin changed distinctly from one study day to another. 5. In foals were stated: significantly higher haemoglobin level and erythrocyte number and lower mean corpuscular haemoglobin than in mares.
authors.affiliation: Department of Vertebrate Animal Physiology, University of Warsaw, Poland.
authors.forename: M
authors.initials: M
authors.lastname: Komosa
authors.forename: A
authors.initials: A
authors.lastname: Flisińska-Bojanowska
authors.forename: J
authors.initials: J
authors.lastname: Gill
mesh_terms: D000818:Animals; D000831:Animals, Newborn / Q000097:blood; D002940:Circadian Rhythm / Q000502:physiology*; D004906:Erythrocyte Count / Q000662:veterinary; D004909:Erythrocyte Indices; D005260:Female; D006454:Hemoglobins / Q000378:metabolism; D006736:Horses / Q000097:blood*; D007774:Lactation / Q000097:blood*
chemical_list: D006454:Hemoglobins