Question 1

Toxicity of potash to mammals

Accepted Answer

Acute oral toxicity of KCl in mammals is low (LD50=3020 mg/kg bw).

The following studies show the effects of doses for rats, guinea pigs, and mice:

Question 2

Toxicity of copper and copper products to mammals

Accepted Answer

There is no published information on the effects of EarthTec QZ on ungulates, however, sheep can be particularly sensitive to products containing copper sulfate, possible due to inefficient copper excretion (Oruc et al. 2009). The toxic doses of copper sulfate for cattle are 200–880 mg/kg. Sheep are ten times more sensitive; they have a toxic dose of 20–110 mg/kg of copper sulfate (Thompson 2007).

Question 3

Toxicity of Zequanox to mammals

Accepted Answer

There is no published information on the effects of Zequanox® on any life stage of ungulates.

Mammals