OHAPTEK XXV. 



Failure of Aborting Cows to Breed. 



Accidental Engoi-gemcnt of tlie Uterine and Ovarian Ar- 

 teries. 



Sometime during the year 1871, or 1872, the owner 

 of an extensive cheese factory,* and a herd of good Ayr- 

 shire cattle, was troubled with a case of abortion in an ex- 

 cellent Ayrshire cow, that soon after her miscarriage came 

 rapidly into heat, and coupled, but she did not become in 

 calf, and the heated condition recurred four or five times 

 in succession, the cow still failing to breed. Happening 

 to meet the proprietor of the herd, he consulted us, and 

 we recommended isolation and quiet for the cow. After- 

 wards, he informed us, that isolation did not lead to breed- 

 ing, for the heat and coupling frequently recurred. This 

 circumstance led us to distrust the efficiency of quietude 

 alone in allaying the coupling heat, that comes on fre- 

 quently, without leading to pregnancy from coupling, in 

 numbers of cows that have aborted. 



Since that occurrence we have devoted much time to ob- 

 servation, inquiry and meditation on the subject, with the 

 hope of being able to explain the reason of the repeated 

 recurrence of coupling heat, and the failure of the abort- 

 ing cows to breed. 



The disordered organs, in such cases, cannot be inspect- 

 ed ; hence, we are restricted to circumstaiitial evidence, 

 and to reasoning by comparison. Still, though positive 

 demonstration is impracticable, there are conditions and 



"^Mr. Chester Ilazcn, Wisconsin. 



