Studies On Mineral Elements Of Hoof Deformities In Sow

Hoof deformities in sow is the disease , the figure and structure of the hoof has been altered . At present , it often occurs in some sow field. The purpose of the studies was to provide scientific theories for prevention and curing of hoof deformities in 40 yorkshire sow , in Changsha region, were chose as research object. The content of 9 mineral elements (Mn,Zn, Cu, Co, Mg, Fe, Cd, Cr, Ca) in the sow diets, hair, hoof and whole blood were determined by flame atomic absorption spectrophotometry .The results were as follows:The content of Fe, Co, Cd, Cu , Mg in the hair of hoof deformities in sow were higher than those of the control group. The content of Zn, Mn, Ca in the hair decreased . The content of Mn, Cu, Co, Fe, Cd in the hoof deformities decreased too, but the content of Zn, Cr , Ca increased. The content of Zn, Mg, Ca in the whole blood of hoof deformities in sow increased while the content of Mn, Cu, Co, Fe, Cd, Cr decreased in contrast with that of the control group. By Significant test, the low content of Cu, Mn, Fe, Co are correlation with hoof deformities in sow.Metabolism turbulence of Fe, Ca, Cu, Cr, Co, Zn influenced horn growth normally, decreased horn hardness, in result that hoof became softening, horn wore off abnormally. In addition to supporting huge weight on hoof and unscientific management, which were the factors that formed hoof deformities in sow.