DENTITION IN THE PIG. 



01 



of much use (see Figs. 30, 31). Beyond this period the teeth 

 offer very uncertain signs of age. The bluntness and yellow 

 colour of the tushes and other teeth offer the best signs of 

 increasing years. 





Fig. 30. 



Fig. 31. 



DENTITION IN THE PIG. This subject has acquired great 

 importance in connection with the management of show- 

 yards, and great credit is due to Professor Simonds and R 

 L. Hunt, Esq., veterinary surgeon, Birmingham, for the ac- 

 curate knowledge regarding the age of the pig which they 

 have acquired and disseminated. 



The pig is born with eight teeth, wnich are foetal incisors 

 and foetal tushes. At one month four incisors are cut, be- 

 sides three temporary molars on either side of each jaw. 

 Two more temporary incisors are added to each jaw at three 

 months, and all the milk teeth are then in position. The 

 jaws and teeth grow, and at six months, "in most animals, 

 but not in all, a small tooth monies up on either side of the 

 lower jaw, behind the temporary tushes, between them and 

 the molars, and in the upper jaw directly in front of the 

 molars." These teeth have been mistaken for tushes. The 

 fourth molar in position appears through the gum also at six 

 months. The corner incisors are displaced, and permanent 

 ones cut at nine months. The permanent tushes are also cut 

 at this period, as well as the fifth molar on each side of either 

 jaw. At one year the middle incisors are changed, and the 



