Table 11.
NBPT residue in skim milk and cream summary
Average NBPT concentration in milk (ppm)a | ||||
---|---|---|---|---|
Day of dosing phase | Product | Treatmentb | ||
1× | 3× | 10× | ||
Day 25 | Skim milk | NC | NA | BQLc |
Cream | NC | NA | BQL |
NC = not collected; NA = not analyzed.
aMean of data from three cows the 10× group.
bTreatments correspond to target NBPT doses as follows: 1× = 1 mg NBPT per kg BW; 3× = 3 mg NBPT per kg BW; 10× = 10 mg NBPT per kg BW. Target dose values calculated based on the average BW of the dose group from the previously completed week.
cBQL = Below lower limit of quantitation (0.05 ppm). BQL values from individual samples were set to 0 for calculation of mean values.