46 ELEMENTARY TREATISE ON STOCK FEEDS AND FEEDING 



lastly phosphates of calcium, magnesium and sodium. Iron is 

 found in the haemoglobin. 



Chemical Composition of Blood. — The composition of the blood 

 as given is from various investigators. 



100 parts venous blood of the horse contain: 



Per cent. 



Corpuscles 32-6 



Plasma 67.4 



The corpuscles contain : 



Water 56.5 



Solid matter 43-5 



The plasma contains : 



Water 90-8 



Solids 9-2 



The solids consist of : 



Fibrin 4 



Albumin 7-5 



Fats I 



Extractives 4 



Soluble salts -6 



Insoluble salts .2 



Average blood contains : 



The plasma — 



Water 90.0 



Proteids 8. to 9. , 



Fats I 



Fibrin 2 to .4 



Extractives .4 



Salts .8 



The corpuscles — 



Water 56.0 



Solids 43.0 



consisting of 90 per cent, haemoglobin and 8 per cent, 

 proteids 



Salts 1 .0 



Taking the blood as a whole the following will approximately 

 represent its composition. 



Per cent. Per cent. 



Water 80. 



Solids 20. 



Haemoglobin 

 Proteids 



Salts 



