Effect of the stage of lactation and pregnancy on the hematological and clinicochemical parameters in the dairy cow

Stampfli, G.; Stirnimann, J.; Kupfer, U.

Schweizer Archiv für Tierheilkunde 123(4): 189-205

1981


ISSN/ISBN: 0036-7281
PMID: 7244612
Accession: 000867731

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Abstract
31 parameters were investigated in 1847 blood samples from Swiss dairy cows more than or equal to 29 months old. There were significant differences between pregnant and non-pregnant cows in 12 parameters. In pregnant cows 17 parameters varied significantly during lactation: the most significant variations (P < 0.001) were in haemoglobin, erythrocyte count, leucocyte count, polymorphonuclear leucocyte count, small lymphocyte count, alpha 1 globulin, Cl, Fe, glucose, cholesterol, lactate dehydrogenase and glutamate oxaloacetic transaminase. In non-pregnant cows there were significant variations in 13 parameters during lactation, including (at P < 0.001) haematocrit, haemoglobin, eosinophil granulocyte count and cholesterol. Effects of stage of lactation and pregnancy on 24 parameters are plotted in graphs.