GENERAL PART OF EXAMINATION. 65 



first symptom shown. By taking the temperature 

 once daily (best at evening), the infected 

 animals may be determined before further 

 symptoms of disease develop; [influenza, 

 contagious pleuropneumonia, swine plague 

 or hog cholera [Texas fever]. 



•' I. The Normal Temperature. The normal tempera- 

 tures of the different animals are as follows : 



Horse . .37.5— 38.5° C. [ 99.5— 101.3° F.J 



The temperature will vary a few tenths of a degree in 

 the same species, and slight variations may occur in one and 

 the same animal within a single day. This latter variation 

 may amount to 1° C. [1.8° F.]\ 



In healthy but pregnant cows the temperature may vary 

 1.5° C. [2.7° F.J ; a temperature elevation, 'therefore, of 

 40.5° C. [104° F.] would not necessarily mean fever- in 



these animals. 



When the organs (muscles, glands) are active a slight 

 rise in temperature takes place, when at rest a slight sinking 

 follows. 



From long continued exercise at a rapid gait the tem- 

 perature of a horse may rise 2.5° C. [4.5° F.]. Two hours 

 may elapse before it reaches normal again. 



High atmospheric temperatures or warm stables, inas- 

 much as they reduce radiation, tend to increase the tempera- 

 ture. As a rule the temperature is lower in the morning than 

 toward evening. 



Age, race, sex, temperament and when eating have but 

 little influence on bodily temperature. During the hot sea- 



