724 



DISEASES OF CATTLE. 



easily salivated by it. As it is excreted by the milk glands, it 

 becomes a source of danger to sucking calves. 



Every one who attempts to treat a diseased animal, should be 

 thoroughly familiar with its appearance in a condition of health. 

 The normal pulse, respiration, and temperature need to be known, 

 so that any variation can be immediately recognized. The pulse is 

 conveniently felt at the jaw. Here the submaxillary artery, coming 

 from the inside, passes over the lower edge of the bone, and mounts 

 upward on the outerside of the face, in front of the large, flat muscle 

 which closes 1 he jaw. The artery of the left side is felt by means of 

 the first and second fingers of the right hand, which are pressed 



Fig. 944.— Examination of Pulse in the Ox. 



upon it towards the inner side of the bone, while the thumb is placed 

 outside, so as to maintain a steady pressure. If the artery of the 

 right side is to be examined, the examiner stands on the left side of 

 the animal. Taking the horn in the left hand, the right is passed 

 over the neck to reach the jaw, the fingers and thumb being placed 

 as just described. The pulse may also be felt over the middle of 

 the first rib, or at the root of the tail, as in Fig. 944. 



The number of pulsations in health differs at different ages. In 

 young cattle, it is from 55 to 65 beats per minute ; in adults, from 

 45 to 50 ; and in old cattle, from 40 to 45. 



Respiration should be noted as to frequency and character. 

 This maybe determined by placing the ear over the chest. The 



