Urine Normal Composition

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Introduction

The testing and evaluation of urine composition is an essential diagnostic indicator for many diseases. It is therefore essential to have an understanding of what is the normal composition of urine.

Normal Urine Volume

Below are the normal urine volumes for the common domestic species. The units are ml/kg/day

Species	Urine Volume
Dog	20-100
Cat	10-20
Cow	17-45
Sheep	10-40
Horse	3-18
Pig	5-30

Adapted from the Merck Veterinary Manual online referance table entitled Urine Volume and Specific Gravity