Question

you are preparing to wean your calves and intend to precondition your calves to minimize stress and maximize their immune system. how many days prior to shipping on to a stocker/backgrounder should you begin preconditioning? at least 120 days at least 45 days at least 25 days at least 10 days

Explanation:

Calves preconditioning typically requires a period to build up their immune system and reduce stress. A period of at least 45 days is a common and recommended practice in livestock management for proper preconditioning. This allows for vaccination, acclimation to feed changes, and overall health - building.

Answer:

At least 45 days