Topic: nose pokes

The level of dietary protein is expected to be crucial for food preference because of its essential role in maintaining homeostasis. Here, we used Feeding Experimentation Devices (FED3s) to assess food preference and foraging behaviour of protein-restricted vs. control mice. Details are shown in graphical methodology; briefly, adult C57BL/6NRj mice were maintained either on protein-restricted (5% casein: PR) or non-restricted diet (20% casein: NR). Food-preference was tested in four 3-days-apart choice sessions each lasting 24h during which mice were individually placed in a cage with access t