Skip to main content
. 2021 May 11;19(5):e06586. doi: 10.2903/j.efsa.2021.6586
Animal commodity Residues at the closest feeding level (mg/kg) Estimated value at 1N MRL proposal (mg/kg)
Mean Highest STMRa (mg/kg) HRb (mg/kg)
Cattle (all diets)
Closest feeding level (0.96 mg/kg bw; 7.3 N; Dairy cattle (highest diet))c
Muscle n.r. 0.05 0.01f 0.01f 0.01 *
Fat n.r. 0.05 0.01f 0.01f 0.01 *
Liver n.r. 0.05 0.01f 0.01f 0.01 *
Kidney n.r. 0.06 0.01f 0.01f 0.01 *
Cattle (dairy only)
Closest feeding level (0.96 mg/kg bw; 7.3 N)c
Milkd 0.05 n.a. 0.01f 0.01f 0.01 *
Sheep (all diets) e
Closest feeding level (0.96 mg/kg bw; 52.6 N; Lamb (highest diet))c
Muscle n.r. 0.05 0.01f 0.01f 0.01 *
Fat n.r. 0.05 0.01f 0.01f 0.01 *
Liver n.r. 0.05 0.01f 0.01f 0.01 *
Kidney n.r. 0.06 0.01f 0.01f 0.01 *
Sheep (dairy only) e
Closest feeding level (0.96 mg/kg bw; 65.5 N)c
Milkd 0.05 n.a. 0.01f 0.01f 0.01 *
Swine e
Closest feeding level (0.96 mg/kg bw; 16.1 N; Breeding (highest diet))c
Muscle n.r. 0.05 0.01f 0.01f 0.01 *
Fat n.r. 0.05 0.01f 0.01f 0.01 *
Liver n.r. 0.05 0.01f 0.01f 0.01 *
kidney n.r. 0.06 0.01f 0.01f 0.01 *
Poultry (all diets)
Closest feeding level (0.14 mg/kg bw; 20.6 N; Broiler (highest diet))c
Muscle n.r. 0.02 0.01f 0.01f 0.01 *
Fat n.r. 0.03 0.01f 0.01f 0.01 *
Liver n.r. 0.04 0.01f 0.01f 0.01 *
Poultry (layer only)
Closest feeding level (0.14 mg/kg bw; 27.4 N)c
Eggs n.r. 0.05 0.01f 0.01f 0.01 *

bw: body weight; STMR: supervised trials median residue; HR: highest residue; n.a.: not applicable; n.r.: not reported.

*

Indicates that the MRL is proposed at the limit of quantification.

a

As the mean residue levels were not reported for tissues and eggs (minor deficiency), the mean residue level for milk and the highest residue levels for eggs and tissues were recalculated at the 1 N rate for the median dietary burden.

b

The mean residue level in milk and the highest residue levels in eggs and tissues, were recalculated at the 1N rate for the maximum dietary burden.

c

Closest feeding level and N dose rate related to the maximum dietary burden.

d

Highest residue level from day 1 to day 28 (daily mean of 3 cows).

e

Since extrapolation from cattle to other ruminants and swine is acceptable, results of the livestock feeding study on ruminants were relied upon to derive the MRL and risk assessment values in sheep and swine.

f

Risk assessment value at the LOQ monitoring (0.01 mg/kg) based on expert judgment.