General Management in Disease 



snail, such as the liver, and whilst within the nurse, 

 other generations are formed, and subsequently 

 the parasite leaves the nurse, and develops a snow- 

 white cyst which adheres to particles of grass, etc., 

 and in this form may be consumed by sheep. The 

 cyst wall is then dissolved in the bowel, and, by 

 means not well understood, gains access to the 

 bile ducts and gall bladder, producing the well 

 known symptoms of liver rot, which are : gradual 

 loss of flesh ; clapping of the wool ; the wool 

 falling out ; the back becomes hollow ; eyes 

 yellowish ; and in due course the belly becomes 

 pendulous owing to dropsy. The presence of 

 liver-flukes in the ejecta is positive evidence of the 

 disease, which seldom prevails on salt marshes, 

 and this is one reason why sheep raisers send 

 their flock towards the coast when liver rot 

 appears. Change to upland pasturage. Separate 

 infected sheep, and give Salt and Sulphate of Iron 

 in food ; say I teaspoonful of Salt and 40 grains of 

 powdered Sulphate of Iron to each sheep daily. 



Lock-jaw (Tetanus) 



Lock-jaw is one of the most fatal maladies 

 affecting the horse, and is solely due to the 

 bacilli tetani, which are exceedingly minute 

 organisms, shaped like a drum-stick, and having a 

 spore at one end. A remarkable feature is the 

 presence of these germs in garden soil, and it 



103 



