DETERMINATION OF OESTROGENS IN THE FAECES OF SHEEP

Abstract

SUMMARY 1. Attempts have been made to estimate oestrogens in residues from sheep faeces using two methods of purification. 2. Low recoveries of oestrogens added to the faeces were recorded with both methods. 3. Some batches of faeces contain contaminants which remain in the final fractions and interfere markedly in colour development. 4. The analysis of faeces, including the effect of diet on the contaminants, is discussed in relation to these methods.