Figure 1From: Iron and iron/manganese ratio in forage from Icelandic sheep farms: relation to scrapieMean concentration of iron (Fe) (mg kg-1 in dry matter) in forage samples from 47 scrapie-free, srapie-prone and scrapie-afflicted farms. Vertical bars show the standard deviation. *significantly lower concentration than in samples from scrapie-afflicted farms (P = 0.001).Back to article page