October 2025 Articles

Transition Feeding Strategies - Launching into Lactation

The 3 weeks before and after calving are arguably the most important in the Dairy Cows calendar. Getting everything right is critical for the cow’s health, fertility, and milk yield. Often referred to as the “transition period” (−21 to +21 days around calving), poorly managed nutrition during this window can directly influence many aspects of cow's health and performance, impacting on future production and calf health.

Keeping cows steady: managing milk fever and low calcium

Why calcium balance matters

Around calving, a cow’s calcium needs triple to produce colostrum and milk. If her body cannot mobilise calcium fast enough, she may suffer from milk fever (clinical hypocalcaemia) or hidden low calcium (subclinical hypocalcaemia). Both can cause loss of appetite, weaker muscles, and higher risk of disease, leading to reduced fertility and milk yield.

Managing Metabolic Risk

Good dry cow management launches them into lactation. Every dairy farmer knows the weeks around calving are critical. The “transition period” (about three weeks before and after calving) is when cows face their toughest metabolic test. Feed intake drops just as energy demands rise, and the cow starts pulling on her fat reserves. Managed well, she glides through this phase and into milk production. Managed poorly, she’s at risk of ketosis, fatty liver, retained placenta, displaced abomasum, or fertility issues later on.