Foot-Rot.
This is frequently a prevalent disease among American sheep. It is sometimes spontaneous, but more often produced by contagion. In the former case, it is caused by soft, rich, or moist pastures. A dry gravelly or rocky range, will of course be an effectual preventive when owing to this cause.
The disorder is communicated by the absorbents of the foot coming in contact with the suppuration which has been left on the ground from the diseased part. Absolute safety against this contagion is secured only by a total avoidance of the walks of the infected animals, till repeated rains, or what is better, frosts, have disarmed the virus of its malignity.
Remedies are variously compounded, of blue vitriol, verdigris, tar, spirits of turpentine, alum, saltpetre, salt, lime, copperas, white-lead, antimony, alcohol, urine, vinegar, &c., all of which have proved effectual.
The hoof should first be pared and thoroughly scraped. Then apply a wash made of three parts of blue vitriol, one of verdigris pulverized finely, with scalding (not boiling) vinegar; stirring briskly till it is of the consistence of thin cream, and put it upon the affected part with a paint brush. It is a good preventive, to apply this to the sound feet of the affected animal.
Another remedy is to use spirits of turpentine after scraping; and if the disease is of long standing, add to the turpentine a strong decoction of blue vitriol dissolved in water. The foot should be examined every week, and the remedy repeated till perfect soundness is restored.
A feather dipped in muriatic or nitric acid, and applied to the parts after scraping and cleansing, is a good remedy. When put upon the soles of foot-sore sheep, it hardens the hoofs, and enables them to travel better.
Sheep are sometimes cured by keeping them on a dry surface, and driving over a barn-floor daily, which is well covered with quicklime. It may also be cured by dryness, and repeated washing with soap-suds.
The above ailment should not be confounded with a temporary soreness, or inflammation of the hoof, occasioned by the irritation from the long, rough grasses which abound in low situations, which is removed with the cause; or if it continues, apply white paint or tar, after thorough washing.