The Urine. 



207 



Table showing the Mean Composition of the Twenty- four 

 Hours' Urine of Horses at Best and Work. 



The following summary of the urines of animals other than 

 the horse is from Tereg.* 



The Urine of the Ox is much the same as the horse, except- 

 ing that it is secreted in larger amounts, 21 to 28 pints, more 

 or less, the differences largely depending upon the amount 

 of nitrogenous matter in the diet, for it has been shown 

 that the more nitrogen a diet contains the larger the 

 amount of water consumed. 



The fluid is clear, yellowish, and of an aromatic odour ; 

 it is of a lower specific gravity than the horse, 1020 to 1030 

 (in milch cows, according to Munk, 1006 to 1015), owing to 

 the larger amount of water secreted, and being poorer in 

 solids. 



The nitrogenous matter in the urine, mainly represented 



by urea and hippuric acid, varies according to the diet. 



On a diet of wheat straw, clover hay, beans, starch, and 



oil, the amount of urea was found to be 4*00 per cent. ; 



* Ellenbergers ' Physiologie,' Art. ' Ham.' 



