Thornton J R, English P B
Aust Vet J. 1976 Jul;52(7):335-7. doi: 10.1111/j.1751-0813.1976.tb02403.x.
Specific gravity and osmolality were determined for daily urine output from 8 male calves that developed diarrhoea. Both factors increased significantly during diarrhoea. From the correlation (r = 0.724) between them and the range of predicted osmolality values for any particular SG the use of osmolality was confirmed as a precise measure of urine concentration in the calf.
