BARRENNESS.
—Failure to breed is usually due to an acid secretion of the genital organs, to the germs of contagious abortion, retention of the afterbirth, or to an abnormal condition of the sexual organs of either the male or female. The acid secretion of the genital organs prevents conception by destroying the semen of the male; the germs of contagious abortion set up a catarrhal inflammation and discharge, which also prevents conception; retention of the afterbirth, whether it be removed by force or permitted to slough away, usually leaves the womb in a diseased and catarrhal condition, effecting a discharge; impotency may be due to excessive use of the male, or to advancing age in both male and female.
Any unnatural discharge irritates and scalds the mouth of the womb so that when the discharge ceases the mouth of the womb heals, and it is impossible to make a cow or mare breed without mechanical interference. This kind of treatment is conducive to fertility by increasing the blood supply to the part. Mechanical contrivances are now on the market for the purpose of dilating the mouth of the womb. These increase the probability of pregnancy. If the womb be opened just before service, many troublesome cases can be corrected. This is done by inserting the oiled hand and arm into the vagina, finding the opening into the womb, and gradually dilating it by inserting one or more fingers until the passage is open and free.