Acetonaemia: Dairy Cow Metabolic Welfare Management

Key Welfare Facts

Acetonaemia causes depressed appetite, reduced milk yield, and neurological signs in affected dairy cows.
The sweet ketone breath characteristic of affected animals provides a field diagnostic clue for experienced staff.
Nervous ketosis causes unusual aggression, circling, and apparent blindness creating significant welfare and safety concerns.
Early clinical recognition and treatment prevents progression to severe disease and secondary complications.
Transition cow management addressing dry matter intake, body condition, and feed transition prevents most cases.
Automatic milk-line analysis for beta-hydroxybutyrate allows early subclinical detection before welfare deterioration.

Welfare Assessment

Acetonaemia prevention through excellent transition cow management is far superior to treating established clinical disease. On-farm ketone monitoring, good dry cow nutrition, and prompt treatment of subclinical cases significantly reduces the burden of this welfare-compromising condition.

What You Can Do

Implement on-farm ketone testing for all fresh cows in the first 14 days post-calving
Develop dry cow and transition cow nutrition programmes with a ruminant veterinarian
Train farm staff to recognise both clinical and nervous forms of ketosis for prompt intervention
Review milk recording data for evidence of subclinical ketosis affecting early lactation yield