3.6. Acute toxicity experiment of Cry1Ab/Ac protein in KM mice
In the acute toxicity experiment, control mice treated with
5000 mg kg1 BSA (negative controls) or water at 20 mL kg1
(blank controls) showed no visible signs of systemic toxicity. In
this study, there was no mortality or toxic effect in mice after acute
oral administration of the Cry1Ab/Ac protein at 5000 mg kg1 body
weight.
3.6.1. Clinical observations and body weight
During the course of the experiment, no treatment-related signs
of adverse effects in clinical appearance of the animals were observed.
Both of the body weights of male and female mice in
Cry1Ab/Ac groups were comparable with control groups at the
beginning and the end of the experiment (Table 1).
3.6.2. Blood biochemistry and haematology
Results for blood biochemistry and haematology for males and
females, measured at study termination (day 15), are listed in Tables
2 and 3, respectively. There were no statistically significant