10 



CATTLE 



SIR PIERTERTJE ORMSBY MERCEDES 14th 



A 2,750 pound HolsteinGrand Champion — Minnesota and Wisconsin Stale Fairs, 1917. 

 Ouned by Marlow & McCargar, Mankato, Minn. 



TUBERCULOSIS 



This is an in- 

 fectious disease 

 very prevalent in 

 cattle. It is com- 

 municated readily 

 to .swine Avhich 

 suffer very seri- 

 ously, and as a 

 rule it is acquired 

 by swine from 

 drinking milk 

 from diseased 

 cows or by feed- 

 ing behind tuber- 

 culous cattle. In 

 man the germ 

 gains entrance in- 

 to the body from 

 milk and in many 

 cases is seen in 

 what is known as 



Inflammation of the Eye in cattle is in 

 all cases where a number of the herd are 

 infected, due to a specific organism or germ. 



Symptoms noticed are a slight watery 

 discharge from the eye; the lids are swollen, 

 the upper lid being dropped; the cornea or 

 transparent part of the eye becomes white, 

 so much so that the light rays cannot pene- 

 trate into the eye and the animal becomes 

 blind. In a short time we have a bulging 

 of the eye-ball and ulceration, as a result of 

 which the contents of the eye escape and 

 permanent blindness follows. Treatment 

 is to separate at once all infectecl animals, 

 bathing the eyes with a mild disinfectant. 

 Special treatment is desirable where the 

 eyeball has become white or is bulging. 



surgical tuberculosis, meaning it affects 

 certain glands of the neck, or certain joints 

 which can be operated upon with more or 

 less success. 



Symptoms of this disease are almost 

 impossible to find. In fact, the only known 

 symptom is an enlargement of the glands 

 in the throat, which appear like a round 

 object in the space below the ear and just 

 above the larynx or Adam's Apple, corre- 

 sponding to the enlarged glands seen in the 

 region of the neck in human beings. As the 

 gland enlarges it presses upon the windpipe 

 causing difficult breathing. Probal)ly only 

 three per cent of diseased cattle show this 

 sj^mptom. 



It is generally supposed that coughing 



GRAXD CHAMPION-POLLED DURHAM BULL-BRED IN STRAIGHT CREEK. KANSAS 



