CHAPTER XXVI. 



Peevention of Aboetion in Cows. 

 Resting Them, and Other After- Treatment. 



When the natural power of any organ or part in an 

 animal is weakened or impaired by overtaxing its strength, 

 rest, to give nature's resources a chance to act, is the only 

 alternative offering hope of recovery, by the restoration 

 of lost strength. And, although from the nature of abor- 

 tion, resulting as it does from over-^trwa., or extreme and 

 rapid rates of expansion and thinning of the udder-supply 

 artery walls, by engorgement, there can be no immediate 

 remedy or cure for the resulting relaxation in the artery 

 walls ; still, there may be a degree of recovery of lost 

 contractility, in some cases, when artery relaxation is not 

 too severe. 



In another chapter, the well-known fact that farrow cows 

 do recover power to breed, after breeding power has been 

 suspended temporarily, is explained. In their case, the 

 artery walls slowly regain contractile power during rest, 

 by the restorative influence of slow nutrition, long con- 

 tinued. 



The older cows are when the injury by relaxtion takes 

 place, the slower the reparative process by the circulation, 

 or, more correctly, by assimilation ; bodily activity, and 

 the rate of circulation, both being reduced as age ad- 

 vances. Consequently the chances of recovery are great- 

 est in young cows. When heifers abort their first em- 

 bryos, they should be dried off as soon as practicable. 

 But as the conditions of primary breeding, such as fully 



