Premium
The Transfer of the Coccidiostat Clopidol to Lambs by Feeding Chicken Waste
Author(s) -
Ryan John J.,
Pilon Jean C.,
Mc Leod Harry A.,
Crober Donald C.,
Sefton Arnold E.
Publication year - 1979
Publication title -
journal of environmental quality
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.888
H-Index - 171
eISSN - 1537-2537
pISSN - 0047-2425
DOI - 10.2134/jeq1979.00472425000800030034x
Subject(s) - feces , chemistry , zoology , broiler , food science , biology , paleontology
Broiler chickens of both sexes were fed a diet with and without 125 µ g/g of the coccidiostat clopidol (3,5‐dichloro‐2,6‐dimethyl‐4‐pyridinol). The waste from these animals was fermentated with a wood base and fed to lambs for a 5‐mo period. The clopidol in the lamb feed, the edible tissues, and faeces was measured at slaughter by gas chromatography (GC) with electron capture (EC) detection and confirmed by mass spectrometry (MS). Lamb silage from chicken waste contained 70 to 80 µ g/g clopidol. Kidney levels of treated groups averaged between 0.4 to 0.75 µ g/g, while those in liver were 0.2 to 0.4 µ g/g. Muscle and fat tissue contained 0.1 µ g/g and lower concentrations. Corresponding values for blood and faeces were 0.1 to 0.5 and 0.2 to 0.8 µ g/g. An additional 10 to 30% more clopidol was present in the kidney, liver, and blood but not the faeces in the form of the glucuronide conjugate. Clopidol was passed on from the chickens to the lambs by feeding of chicken waste but did not appear to accumulate in the lambs.