Veterinary Technician Practice Exam

During what period after calving does ketosis typically occur?

1. 1 to 2 weeks

2. 3 to 5 weeks

3. 6 to 8 weeks

4. 9 to 12 weeks

The correct answer is: 6 to 8 weeks

Ketosis commonly occurs in dairy cattle during the period of 3 to 5 weeks post-calving. This condition is often a result of negative energy balance, where the energy demands of lactation exceed the energy intake from feed. In this timeframe, cows are still adapting to the demands of milk production, and inadequate nutrition can lead to the mobilization of fat reserves, resulting in the production of ketones and potential ketosis. While signs of ketosis can sometimes begin to manifest as early as one to two weeks after calving, the more pronounced and clinically recognized cases typically develop around three to five weeks postpartum. Therefore, the correct understanding pinpoints this critical period when monitoring for ketosis is particularly important for the health of the cow and her productivity.