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A MANUAL OF VETERINARY PHYSIOLOGY 



The appearance of the food after it has been in the stomach 

 depends upon the period of digestion. We have previously 

 drawn attention to the'fact that an hour or two after hay has 



III. 



Tig. 66. — Longitudinal Section of the Horse's Stomach, showing the 

 Arrangement of the Food according to the Order in which it was 

 received (Ellenberger). 



In. each case oe is the oesophagus ; py., pylorus ; d, the left sac ; v, the fundus. 

 I. Hay first, followed by oats : b, the hay ; a, the oats ; the latter are passing 

 along the lesser curvature and escaping with the hay at the pylorus. II. Oats 

 first, followed by hay : a, the oats ; b, the hay. III. The order of three suc- 

 cessive feeds : c, the first feed ; b, the second ; a, the third. 



been taken the material is found in a finely-chopped condition, 

 firm — one may almost say dry — in places, though towards the 

 pylorus it is liquid. This hay contains between four and five 

 parts of saliva ; it is yellow in colour where the gastric juice has 



