DISEASES OF THE LAMB. 137 



9. Pustular Eruption of Lambs. 

 This is a rare but fatal disease of lambs. 



Symptoms: These resemble those of foot-and- 

 mouth disease very closely and experience is re- 

 quired to differentiate. It seems to be contracted 

 from a form of gangrenous mammitis in the ewe, 

 and is very infectious. 



Treatment: Mainly quarantine and segregation 

 of the infected. The ulcers on the lips of the 

 lambs and the udders of the ewes may be painted 

 with silver nitrate. 



10. Tetanus. 



This is very prevalent on the western range, fol- 

 lowing castration, docking and ear marking. It 

 has been considered on page 92 in the section on 

 Acute Infectious Diseases. 



11. Stomatitis. 



The sporadic form is known as "sore mouth " or 

 thrush among sheep men. The contagious form, 

 known as * ' necrotic stomatitis. ' ' 



Symptoms: This condition is so difficult to dis- 

 tinguish from foot-and-mouth disease, that no one 

 should take any chances ; if the history will justify 

 the supposition that it may be the latter, notify 

 the nearest representative of the Federal Bureau 

 of Animal Industry by wire. 



The simple cases are treated with mild anti- 

 septics, such as boric acid, or weak tincture of 

 iodin. 



