230 Veterinary Obstetrics 



myrrh in a liter of water, or, what is more rational, the complete 

 elimination of the yellow bodies, followed by compression when 

 possible of the remnant of the ovary with three fingers or the 

 entire hand, through the vaginal wall. 



In pressing out hypertrophied yellow bodies, it occurs excep- 

 tionalh' that the ovarj^ or enlarged yellow body splits into two 

 portions, which remain loosely attached to each other. In such 

 cases each portion, which is soft and elastic and consequently 

 consists only of tissues characteristic of the yellow body, is to be 

 removed. After the operation the animal shows for from 20 

 minutes to three hours a slight arching of the back and elevation 

 of the tail, at first slight straining and very rarely a dimini.shed 

 appetite at the next feeding time. 



At the point where the corpus luteum has been pressed out, one 

 to several fresh corpora, less developed, generally form within 

 3-12 days and indeed we have observed two new corpora in the 

 left ovary nine days after operating and three in the right organ 

 after twelve days. 



The normal duration of estrum is not affected b}' this operation 

 but in those cases where it was previously abnormally short it 

 tends to become normal and our clinical records indicate clearly 

 that 95 % of animals so handled conceive at the first service. 

 The hypertrophy of the corpora lutea, like so many other phe- 

 nomena in the sexual life of cows, is referable to the irritation to 

 the sexual apparatus due to the prior attack of infectious granu- 

 lar venereal disease. 



Finally, not only with reference to the indications for castra- 

 tion but also from the view point of butter and cheese production, 

 we should consider the influence of nymphomania and castration 

 upon the quality of the milk. 



Prof. Dr. SchaflFer, Canton Chemist in Berne, has favored us 

 with the following milk analyses and explanatory text with ref- 

 erence to the influence of nymphomania and castration upon the 

 character of the milk : 



Our literature is contradictory to a marked degree regarding 

 the influence of sexual excitement of milking animals upon the 

 quality of the milk. While Fleischmann (Landw., Jahrbuch 20, 

 Erganzungsband U.S. 192) found a marked diminution of butter 



