Companion Animals

Equine Rotavirus in Foals: Welfare and Prevention

Welfare guide to equine rotavirus -- the leading cause of infectious diarrhoea in young foals.

Key Facts

Equine rotavirus is the most common infectious cause of diarrhoea in foals under 3 months of age
It causes profuse watery diarrhoea, dehydration, and weakness -- rapidly life-threatening in young foals
Affected foals can deteriorate within hours -- close monitoring of newborns is essential
The virus is highly contagious and survives in the environment for weeks
Strict hygiene during foaling season prevents environmental contamination
A vaccine is available for mares -- maternal antibodies in colostrum protect foals in their first weeks
Oral electrolyte replacement and intravenous fluid therapy are the mainstays of treatment
Welfare monitoring of foals should include daily assessment of faecal consistency and demeanour

Welfare Significance

Equine rotavirus in foals is a welfare emergency. The rapid dehydration and weakness in young foals means hours matter -- a foal that is slightly dull and loose in the morning can be critically ill by evening. Close monitoring of all foals in the first 3 months, rapid response to early signs, and vaccination of mares are all welfare-essential practices.

What You Can Do

Vaccinate mares in late pregnancy against rotavirus to protect foals through colostrum
Monitor foal faecal consistency and demeanour daily in the first 3 months of life
Isolate any foal with diarrhoea and seek veterinary assessment same day
Implement strict hygiene protocols during foaling season to prevent rotavirus environmental contamination