Step 1: Understanding the Concept:
Late gestation management of dairy cattle is crucial to ensure a safe delivery, prevent periparturient diseases (like milk fever or ketosis), and minimize calf mortality.
Step 3: Detailed Explanation:
Pregnant dams must be separated from the main herd and shifted to clean, well-bedded individual calving pens (also known as maternity pens) about 2 to 3 weeks prior (approximately 3 weeks) to their expected date of calving.
This practice provides several benefits:
- It allows the dam to settle down, adapt to a quiet environment, and reduces physical stress.
- It enables farm staff to monitor the animal closely for impending signs of labor.
- It ensures a hygienic, pathogen-controlled environment for the delivery, reducing the risk of mastitis or metritis in the dam and naval ill in the newborn calf.
Step 4: Final Answer
Pregnant dams should be shifted to calving pens 3 weeks prior to their expected calving date.