22 



Farmers' Bulletin II!)!). 



Full or 4-year mouth. — At about 40 to 48 months of age a sheep 

 has a full mouth with all its permanent teeth present. From then 

 on only an estimate of the age can be made from the mouth. As a 



Fig. 25— Four-year-old or full mouth. 



sheep grows older the teeth gradually spread and become shorter with 

 wear. (Fig. 25.) 



Fig. 26.— Broken mouth, aged sheep. 



Broken mouth. — As sheep grow -till older they gradually lose their 

 teeth. A broken-mouth sheep has trouble in eating and should not 

 be kept in the flock. (Fig. 26.) 



