PREVENTION, SYMPTOMS AND TREATMENT I c ? 



neck is often drawn to one side. Abscesses may form in the joints 

 and elsewhere. 



Louping ill is enzootic and due to the invasion of the blood by 

 bacteria conveyed to sheep by the common grass tick (Ixodes re- 

 duvius) which lives on tall grass and rushes in damp places. No 

 cure is known and treatment is wholly preventive. Diseased sheep 

 should be isolated and killed. The rest of the flock should be dipped 

 as for scab (see p. 168). Wet pastures must be drained and long 

 grass and rushes avoided. 



Lumbar Prurigo— Nibblers — Trotters — Trembling. 



This is a disease peculiar to sheep, which is somewhat akin to 

 Louping 111. It is characterized by trembling when the animal is 

 touched, and by walking in a peculiar way (trotting) with feet 

 raised high, like horse with stringhalt. Then the animals are seized 

 with incontrollable desire to rub and bite their hind quarters so 

 that the skin is bared (nibblers), the gait is uncertain, and the ani- 

 mals waste, have paraplegia and die. No curative treatment is 

 known, but diseased animals should be slaughtered early and not 

 bred from. 



Lymphangitis in the Horse. 



Lymphangitis often appears suddenly in one or both hind legs, 

 and occasionally in a fore leg. It was formerly thought to depend 

 upon a surfeited state of the system, but is a local infection, with 

 cocci probably, due to some unseen focus, or to abrasions of the 

 skin, as occur in scratches. It is a cellulitis or lymphangitis or both 

 combined, and is often described as inflammatory edema or phleg- 

 mon. Being a surgical and local affection, the treatment should be 

 chiefly local. 



Symptoms. — It begins with local heat, swelling and lameness 

 in a limb, so that often the animal stands on three legs. Enlarged 

 inguinal and brachial glands, corded lymphatics, and general swell- 



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