THE BLOOD PICTURE OF RATS FROM BIRTH TO TWENTY-FOUR DAYS OF AGE

Abstract
The blood picture of 288 rats, 12 each day from birth to 24 days of age, was investigated erythrocytometrically with the intention of establishing statistical variability. The changes in the peripheral blood picture occurring during that period resemble those of the human macrocytic hyper-chromic anemia patient given liver therapy. The changes are interpreted as representing the transition from megalo-blastic to normoblastic erythropoiesis.