Livestock

Ringwomb and Cervical Dilation Problems at Calving

Welfare guide to failure of cervical dilation at calving -- a cause of prolonged labour and severe welfare harm.

Key Facts

Ringwomb (incomplete cervical dilation) prevents normal delivery of the calf despite adequate labour
Affected cows may strain for hours with only partial cervical dilation -- causing exhaustion and injury
The condition is more common in first-calf heifers and certain breeding lines
Veterinary intervention is essential -- manual dilation, spasmolytics, or emergency caesarean section are options
Prolonged labour from ringwomb causes calf hypoxia and increased perinatal mortality
Maternal welfare deterioration from prolonged straining includes exhaustion, uterine damage, and secondary infection
Early recognition of abnormal labour progress prevents hours of unnecessary suffering
Monitoring calving supervision systems that alert to prolonged labours save both calf and cow welfare

Welfare Significance

Ringwomb causes intense and prolonged suffering for both cow and calf. Hours of unproductive straining exhaust the cow and compromise calf oxygenation. Early recognition through good calving supervision and prompt veterinary intervention are the welfare response. Systems that monitor labour duration and alert when progress stalls prevent welfare emergencies from going undetected.

What You Can Do

Monitor all cows in labour -- normal delivery should progress within 1 hour of active straining
Call your vet immediately if there is no progress after 30-45 minutes of active labour
Implement calving supervision systems including cameras and alert devices for unattended calvings
Keep veterinary contact details accessible at all times during calving season