[Physicochemical properties of the hoof horn in healthy highly productive cows and in those with hoof diseases].
Comparative investigations were carried out to determine the water content, total protein, the macroelements Ca, P, Na, and K and the trace elements Zn, Mn, and S in the wall and sole horn of the front and hind hooves of high-producing cows of the Bulgarian Brown breed and the Black Pied cattle. The hoof water content in both breeds did not show any substantial differences in normal and diseased cows, and varied within the limits of 19 to 34 per cent. In affected hooves the water content was higher than that in normal hooves. The contents of total protein, Ca, P, K, Na, Zn, and Mn did not show, essential differences of either. The low level of total sulfur in diseased hooves was an indication of the lowered resistance of hoof horn.
D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000378:metabolism*; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D004573:Electrolytes / Q000032:analysis; D005260:Female; D005534:Foot Diseases / Q000378:metabolism / Q000662:veterinary*; D005552:Forelimb; D006614:Hindlimb; D006724:Hoof and Claw / Q000032:analysis / Q000378:metabolism*; D007633:Keratins / Q000032:analysis*; D014131:Trace Elements / Q000032:analysis; D014867:Water / Q000032:analysis
D004573:Electrolytes; D014131:Trace Elements; D014867:Water; D007633:Keratins
Fiziko-khimichni kachestva na kopitniia rog na zdravi i sŭs zaboliavaniia kopita pri visokoproduktivni kravi.