Hematological values in poultry

Abstract
The various hematological values (hematocrit, blood and plasma volume, erythro cyte volume) have been determined in three species of poultry [hen (49 specimens), turkey (13 specimens), duck (8 specimens)] with distinction of sexes and laying period. In the turkeys and duck the determinations have been repeated about to 4-5 months from the first assay; in this moment the females were in laying state.
It is appreciated that the duck shows values considerably superior to the other species.
With age there is a diminution, in general, in blood and plasma volumen, effected by the increase in size.
Due to the superimposition of the factors it is not possible to prove here a direct influence of the laying phenomenon on the values analyzed.
Keywords:
Blood Volume, Erythrocytes, Animals, Chickens/physiology, Ducks/physiology, Female, Hematocrit, Male, Plasma Volume, Poultry/physiology, Turkeys/physiology
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