Abstract
1. Seven colostomised hens were fed on a control diet free of dried poultry manure (DPM) or one including 20% DPM. 2. Urate excretion was greater during DPM feeding by approximately the amount consumed: little urate was present in faeces. 3. Doses of 10.6 μCi of 14C‐urate introduced into the crop were quantitatively excreted in the urine within 24 h. 4. The results show that none of the urate present in DPM is utilised by the laying hen.