@inproceedings{orgprints3446,
          editor = {J He\ss and G Rahmann},
           title = {Mineralstoffversorgung bei Rindern und K\"uhen auch im \"Oko-Landbau \"uberpr\"ufen
},
          author = {Dr. Edmund Leisen and Dr. Peter Heimberg and Dr. Martin H\"oltershinken},
       publisher = {kassel university press GmbH, Kassel},
            year = {2005},
         journal = {Ende der Nische, Beitr\"age zur 8. Wissenschaftstagung \"Okologischer Landbau},
        keywords = {Rind, Tierern?hrung, Tiergesundheit, Spurenelemente},
             url = {http://orgprints.org/3446/},
        abstract = {The contents of minerals in the blood of cattle can be both too low or too high even on farms with otherwise good management. It seems that this is a wide spread problem. On 26 farms, including 314 animals, the contents of Ca, Mg, P, Se, Cu, Zn and Mn were investigated.}
}