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Mean weekly weight gain (± standard error) of domestic chickens in each imidacloprid exposure group in grams per week (g/wk); birds were exposed to imidacloprid from day 0 to 6; statistically significant differences between treatment groups each week are noted with asterisks.
* Significantly decreased weight gain in the 15.50 mg/kg/d group compared to all other treatment groups
** Significantly increased weight gain in the 15.50 mg/kg/d group compared to all other treatment groups
