May 2026 – Lame cows impact on the breeding season

With spring-calving under way, now is a great time to tackle lameness.

Lameness is one of most common and costly conditions affecting dairy herds but is avoidable by taking a proactive approach. Its impact during the breeding season often underestimated. A lame cow is in pain, and that pain directly interferes with her ability to show heat clearly and hold in calf.

Cows suffering from lameness show shorter heats that are harder to detect. On any calving system but which is more obvious on a spring-calving farm, a missed heat in week one or two means a three-week setback to the calving window, and that cost carries into next year.

When several cows in a herd are affected, the overall impact on the calving pattern is significant. More cows calving later increases management pressure, and lower milk solids output across the season.

Research estimates put the cost of a single clinical lameness case at between €200 and €400 per cow per episode, once reduced milk yield, treatment costs, and the effect on fertility are accounted for. In herds where lameness is prevalent, the total loss across a season can run to thousands of euro.

Lame cows can miss heats, slip the calving window, and produce less milk. Lameness is also very painful for the cow, and that pain has consequences right through the production year.

Identifying and treating lame cows earlier will mean less lame cows in the herd. Early treatment prevents internal foot damage which causes cows to become chronically lame. Once a cow reaches this stage it is very hard to get her back.  Find lame cows early, treat them promptly, and do not wait until after breeding to deal with a problem. It is not a problem that goes away by itself, so now is the time to act before the breeding season turns into a costly period impacting profits this year and next. AHI encourages all dairy farmers to prioritise lameness in the weeks ahead, working alongside their vet and farm advisers.

Top tips for managing lame cows

• Closely examine how your cows are moving.
• Treat lame cows without delay. Early treatment reduces cost per case and gives a much better chance of a normal breeding outcome.
• Talk to your vet about the conditions driving lameness on your farm.
• Check your environment. Roadways, cow flow (sharp turns are detrimental) , and standing times all carry lameness risk that can be addressed.
• Cow handling, let them walk at their own pace.
• Keep records. Linking lameness data to breeding results will show you the true cost on your own farm.