742 DISEASES OF CATTLE. 



In females it is sometimes caused by an excessive yield of milk, by 

 which the system is subjected to a heavy drain ; but it is usually due 

 to deficient food, or that of an inferior quality.- 



The symptoms are a marked lack of vital energy, languor, loss 

 of appetite, tendency to indigestion, and rapid wasting away. The 

 pulse is feeble, frequent, and irregular ; the mucous membranes are 

 very pale* the extremities are cold, and often the- animal is covered 

 with lice. Usually it is preceded by an exhausting diarrhea. 



Treatment. — Simple Anaemia presents very little difficulty. The 

 first step should be the removal of the cause, by a complete change 

 of diet, and careful nursing. The change to good food must not, 

 however, be made too suddenly. A laxative dose will generally 

 rouse the bowels, if torpid, but if diarrhea is present, it must be cau- 

 tiously checked. If the animal is infested with vermin, these should 

 be destroyed as soon as possible. The following tonic may be 

 given daily, in the food, or by drenching, and continued, with occa- 

 sional rests, until a cure is effected. 



Sulphate of iron (copperas) 2 dr. 



Nux vomica, powdered ; 1 " 



Gentian ,, . . 1 oz. 



' The animal should be well fed, carefully housed, and kept clean. 

 This disease has been called Hollow Horn, or Horn Ail, from a 

 symptom produced by the impoverished condition of the blood. 

 Ignorant pretenders have sometimes bored- the horn, and poured in 

 turpentine to relieve one unimportant symptom of a constitutional 

 disease. 



PURPURA HEMORRHAGICA. 



This is a specific blood disease, not so co'mmon among cattle as 

 in the horse. It is caused by bad living, exposure to cold, previous 



disease, foul air, and other debilitating 



influences. 



mt ^^&~. The symptoms are purple spots on 



I the membranes of the eyes, nose, 



, " mouth, and vulva, scattered swellings 



•"f'i* \ on the head and face, and those parts 



^ ■"Stfri t n! covered with loose skin. The pulse 



is full at first, but soon becomes hard 

 Pro. 087.— Appearance of ths Head In and wir y- As the disease advances, 

 Purpura Haemorrhagica. a reddish-yellow fluid oozes from the 



swellings, which now involve the 

 eyes, nose, face, throat, and neck, as represented in Fig. 967. The 





