Horse Winter Nutrition: Maintaining Condition and Welfare

Cold weather significantly increases horses' energy requirements, making winter nutrition planning essential for maintaining body condition and health.

Key Facts

Horses burn approximately 10-15% more energy per degree below their thermoneutral zone (approximately 5-10 degrees Celsius)
A horse in heavy winter coat can maintain warmth down to approximately minus 15 degrees Celsius
Body condition score of 4-5 out of 9 at the start of winter provides insulation reserves
Hay fermentation provides more digestive heat than concentrates - beneficial in cold weather
Thin horses and elderly horses need additional caloric support before and during winter
Water must remain unfrozen - horses will not eat enough snow to meet hydration needs
Senior horses with dental disease may need soaked feeds to maintain condition

Welfare Considerations

Horses that enter winter underconditioned or receive inadequate nutrition suffer cold stress, immune compromise, and potentially life-threatening weight loss. The welfare impact of poor winter preparation includes increased susceptibility to respiratory disease, impaired wound healing, and reproductive failure. Proactive body condition monitoring from September onwards and adjusting feed before weight loss occurs prevents the welfare emergency of a thin horse in January.

What You Can Do

Body condition score your horses monthly from September through March
Increase hay provision by 10-20% when temperatures consistently fall below 5 degrees Celsius
Ensure water sources remain unfrozen - use tank heaters if necessary
Provide adequate shelter from wind and rain - a rain-soaked horse loses heat rapidly
Monitor senior horses with dental issues and transition to appropriate soaked feeds