New rat feeding jar: use in study of relationships of food intake and body weight.

Abstract

An inexpensive, easily constructed, spillproof rat feeding jar is described. Using this method, a prediction formula for food intake by rats at various weights was determined. It was found that fasted body weight best correlated with the mean food intake for the preceding 7 days, and that the formula, log food intake = log a + b log fasted body weight most appropriately described the relationship.