668 



From the wide ratio between the intake of carbohydrate and 

 that of fat in normal cows it is clear that in milch-cows secretion 

 of a(!etone takes jjlace only with a verj abnormal metabolism. 



Our researches go to show tliat in milch-cows snflfering from 

 acetonemia waste of body fat takes place on a large scale, often about 

 J kilogram daily. Lipemia, glncosuria and hyperglycemia do not 

 occur. The total quantity of acelone-bodies amonnts to about 120 

 grnis. per day. The cholesterol-conleni of the blood is 50 to 100 7» 

 higher than normal sometimes even more. The alkali-i'eserve has 

 decreased. It is probable that the disturbed fat-metabolism is caused 

 by intoxication of the liver. 



From the Chemical Laboratory of the Veterinary 

 University at Utrecht. 



I 



