A comparative analysis was made between the toxicity of plant protecti
on products to two species of quail used in regulatory testing. It was
shown that in general differences in the sensitivity between bobwhite
quail and Japanese quail were small, and not statistically significan
t. It was therefore concluded that both species should be seen as equa
lly suitable models for avian safety assessment. The mutual acceptance
of studies carried out-on either of these species for US and EC regis
tration procedures, would lead to a reduction in vertebrate sacrifice
and resource spending.