Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The measured concentration of doxycycline in feed from (A) vendor A and (B) vendor B during storage under 3 conditions (refrigerated, room temperature, and intracage). Mean concentrations of doxycycline in feed (n = 5 pellets) were measured by using LC-MS/MS. Bars represent 1 SD. The postirradiation (1 mo) sample served as the baseline for comparison over time. *, P < 0.05 when compared with baseline.
