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Online Edition: "Residues of some veterinary drugs in foods and animals"

Online help   Terminology

This database contains the most recent information on maximum residue levels for veterinary drugs as recommended by JECFA. All monographs published in the FAO Food and Nutrition Papers 41 can be accessed in an electronic format. These monographs are available only in English although some parts of the database, the query page as well as the background information are provided in English, French, Spanish, Arabic and Chinese.

Veterinary Drug Zeranol
Functional class Xenobiotic growth promoter
Latest evaluation 1987
JECFA meeting 32
ADI 0-0.5 µg/kg bw
ADI status Full
Residue monographs  
41-1-zeranol.pdf
Marker residue Parent drug
Maximum residue limits
(MRL) recommended
CattleLiver10 µg/kgF
CattleMuscle2 µg/kgF
Other remarks
Summary of the evaluation An ADI of 0-0.5 µg/kg of body weight was established fo rzeranol.
For a 70 kg person consuming 500 g of meat daily, the maximum permissible level of zeranol residues in meat would be 70 µg/kg of edible tissue. However, the Committee pointed out that levels of residues of zeranol in meat from animals treated according to good practice in the use of veterinary drugs would be below this figure. Therefore an Acceptable Residue Level was established for zeranol: 10 µg/kg for bovine liver and 2 µg/kg for bovine muscle. The latter level is higher than that observed in cattle treated according to good practice in the use of veterinary drugs, but is the lowest level consistent with the practical analytical methods available for routine residue analysis.
TRS 763