Renal function in heifers

Abstract

Glomerular filtration rate (GFR) (inulin clearance) has been studied in heifers which showed marked changes in weight over the test period. It is concluded that changes in GFR are not related to the weight of the animal, but are a characteristic of the animal. It is erroneous to use a standard weight as a common reference point for cattle.

Creatinine/inulin clearance ratios were all found to be greater than unity.