350 



THE PRACTICE OF VETERINARY MEDICINE. 



worn all round, which is usually when the animal is four or 

 five years of age. The mode of living, kind of food, etc., 

 exert a considerable influence over the wearing away of the 

 teeth, as it is evident that an animal fed on hard food, given 

 bones to gnaw, addicted to fighting, etc., will have his teeth 

 worn away much sooner than an animal fed on soft food, 

 allowed few bones, and of peaceful habits. 



The following table shows the various changes taking 

 place in the mouth of the horse from the time of birth up to 

 the age of five years : — 



Temporary Incisors. 

 3 2 112 3 



Permanent Incisor; 

 2 112 



Permanent Molars. 

 1st 2nd 3rd 4th 5th 6th 



I I I 

 birth 



-9 weeks- 1 



9 months — 



I i 

 2h to 3 yrs. 

 - 3^ to 4 yrs. 

 Ah to 5 yrs. 



c3 



O f3 



r-l i-( -* 



Hence the horse has — 



Incisors. 

 Age. Temporary. Permanent. 



At, or soon) 



after, birth/ 

 9 weeks 



1 year 



2 years 



3 years 



4 years 



5 years 









 

 

 4 



8 

 12 



The table given below indicates the various changes 

 which occur in the mouths of ruminants, and more particu- 

 larly in the mouth of the ox. 



EUMIXAXTS. 



Age. 



Molars. 

 Temporary. Permanent. 



1 year 



2 years 



3 years 



4 years 



5 years 



12 



12 

 8 

 4 











4 

 12 

 16 



24 



32 



