Also, two tools are provided:
A wrench for removing the hopper from the food bowl
A rod for assembling the components of the feeder assembly and for loading the food into the hopper
The hopper is designed to deliver powdered food. The screen at the top is designed to allow access to the food
and prevent the subject from entering the hopper. For the mouse, two materials are used in the fabrication of
the hopper: polycarbonate and Teflon. The polycarbonate hopper is suitable for high-carbohydrate (dry) food
and the Teflon hopper is suitable for high-fat (damp) food. For rats, the polycarbonate hopper can deliver both
types of food. The bowl is designed to fit the measurement pad of the scale and to catch the food that was not
eaten for more accurate tabulation of the actual food consumed.
4.4.1 Assembling the Feeder
• Insert the push plate into the hopper as shown. The excess metal tube of the push plate should extend
away from the screen of the hopper. Then set aside.
• Inset the rod through the hole in the bottom of the bowl then slide it to the base of the handle.
• Now place the spring over the rod as shown.