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Rats are fed free choice food and water, which is sometimes referred to as what?
Forced feeding
Scheduled feeding
Ad libitum
Restricted feeding
The correct answer is: Ad libitum
Feeding rats on a free choice basis means that they have constant access to food and water without any restrictions. This method is commonly referred to as "ad libitum," which is a Latin term meaning "at one's pleasure." This approach allows animals to eat and drink according to their own needs and preferences, promoting natural behavior and helping to ensure their overall well-being. In contrast, forced feeding involves administering food involuntarily, which is not applicable here. Scheduled feeding refers to providing food at specific intervals, limiting the animals’ access to food outside those times, and restricted feeding involves limiting the quantity of food available to manage weight or health issues. These methods do not apply when rats have continuous access to food and water, highlighting why "ad libitum" is the correct term in this context.