Animals most affected
Cattle, sheep, goats.
Ingestion of soil
(Containing insoluble aluminium salts, in particular aluminium silicates.)
Ingestion of dried beet pulp
(Aluminium sulphate is used as an additive in the pressing process), problems arise
the mixing of the pulp and desiccant is not properly carried out;
too much aluminium is used.
The toxicity of aluminium is well documented but has not been adequately described
in animals, nor has the likely etiology for such poisonings been well reported. Aluminium
is thought to interfere with the absorption of phosphates (rendering them insoluble)
and possibly the absorption of magnesium.
Toxicity is increased when there is a deficiency of phosphorus. Toxic doses are not
well known, in ppm aluminium/dry matter in the diet:
In very general terms
reduced food intake;
reduced growth rate in juveniles;
loss of weight;
possibility of tetany (due to the interference with magnesium uptake).
Supplement the diet with phosphates.