Abstract
Extract
Madam:– We are surprised that Messrs Smith and Towers misinterpreted our letter on salmonellosis in ram hoggets following prophylactic zinc dosing as a criticism of their actions or of their research and publication record. In fact, they echo our caution in stating that the results of drenching sheep with a fortnight's accumulated dose of zinc oxide have been presented and discussed as preliminary and that "no final recommendations will be made until optional dose rates and safety factors have been assessed."