Goat toxic diet

Koalas Phascolarctos cinereus) increase their glucose intake by 20% if they eat Eucalyptus spp. foliage, which requires conjugation reactions with glucuronic acid for excretion (Eberhard etal, 1975). Goats and sheep eat more of a toxic diet if given surplus food, which helps detoxication (Provenza, 2004). 

In the transitional zones between deficient and sufficient supply, as well as between normal and toxic supply, adaptation reactions occur as described for copper in sheep (Wiener and Field 1970) and for manganese in goats and cattle (Anke et al. 1973). As a consequence, breeds of farm animals which adapted themselves to the local trace element offer came into being. Depending upon the species and the elements involved, there is a pharmacodynamic or therapeutic range between the optimum and toxic element offers of some elements. Well-known examples of the effect of inorganic components in the diet are arsenical compounds in the... 

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