J. Anim Sci.
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J. Anim Sci. 1961. 20:890-897.
© 1961 American Society of Animal Science
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Swine Hematology from Birth to Maturity. II. Erythrocyte Population, Size and Hemoglobin Concentration1

E. R. Miller, D. E. Ullrey, Inge Ackermann, D. A. Schmidt, R. W. Luecke and J. A. Hoefer2

Michigan State University, East Lansing

Abstract

Studies have been conducted and data presented from over 16,000 determinations related to erythrocyte population, size and hemoglobin concentration in swine at frequent age intervals from birth to maturity. Rapid decreases in erythrocyte population, size and hemoglobin concentration occurred shortly after birth probably due to hemodilution following colostrum consumption. All values were low at weaning. Post-weaning values rose to adult values in most measures at 5 months of age. A slight anemia existed in sows and gilts in late gestation. A reticulocyte response accompanied each period of anemia. Values of mean corpuscular hemoglobin concentration were low only in the suckling pig. There was no consistent influence of sex upon erythrocyte values although erythrocyte population was usually slightly less and cell size slightly greater in females than in castrated males.

Footnotes

1 Published with the approval of the Director of the Michigan Agricultural Experiment Station as Journal Article No. 2834.

2 Departments of Animal Husbandry, Veterinary Pathology and Biochemistry.




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[Abstract] [Full Text] [PDF]


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