Feeding a Working Dog: Fuel for Dogs With Real Jobs

A pet Labrador and a gundog at the peak of the season are the same species with very different requirements. Working dogs can burn two, three, occasionally many times the calories of a house dog, and the way those calories should be delivered is not simply “more of the same food”.

This matters most for gundogs in season, sled and canicross dogs, farm dogs, search and rescue teams, and anyone whose dog does sustained hard work rather than a brisk walk.

How much more energy?

The honest answer is that it varies enormously with the type of work, conditions and the individual dog. As a rough guide:

• A pet dog with an hour’s walk a day sits near its maintenance requirement.
• A dog doing a couple of hours of genuinely hard work may need around one and a half to twice maintenance.
• A gundog working full days through a season, or a dog running distance in cold conditions, can need two to four times maintenance.
• Racing sled dogs in extreme conditions have been measured at levels far beyond that, among the highest sustained energy outputs recorded in any mammal.

Cold multiplies everything. So does deep snow, heavy ground, water work and altitude.

Fat is the key nutrient, not protein

This is the part that surprises people. For endurance work, dogs run predominantly on fat.

Dogs are far better fat-burners than humans. Where a human endurance athlete depends heavily on carbohydrate and hits a wall when glycogen runs out, a conditioned dog shifts efficiently to fat metabolism and can sustain aerobic work for hours.

That means a performance diet is typically higher in fat than a standard maintenance food — often thirty per cent of calories or considerably more for extreme endurance work. Fat also carries more than twice the energy per gram of protein or carbohydrate, which matters when a dog physically cannot eat enough volume to meet demand.

Protein still matters, for muscle repair and to prevent the sports anaemia seen in dogs worked hard on inadequate protein. Performance foods usually run protein higher than maintenance too. But fat is the fuel; protein is the building material.

Choosing the food

Look for a food formulated and labelled for performance or active dogs, with:

• Higher fat and protein than a maintenance diet
• High digestibility, so the dog extracts more per meal and produces less waste
• A reputable manufacturer that runs feeding trials

Avoid meeting increased demand simply by doubling the volume of a low-calorie food. That produces an enormous gut load, more stool, and a dog running with a full belly — none of which helps.

Timing

This is where a lot of avoidable trouble happens.

Do not feed a large meal before work. A full stomach before exertion is a bloat risk in deep-chested breeds and impairs performance in every dog. Leave several hours between a substantial meal and hard work.

Feed the main meal after work, once the dog has cooled down and settled — typically thirty minutes to an hour afterwards. Feeding within a couple of hours of finishing helps replenish glycogen stores, which supports recovery for the next day.

Small snacks during long work days are fine and can help maintain blood glucose on multi-hour outings. Keep them small.

Water

Hydration limits performance before nutrition does. A working dog loses substantial water through panting, and in cold weather dogs often drink too little because they do not feel thirsty.

• Offer water frequently in small amounts rather than rarely in large ones
• Consider adding water to food, or feeding some wet food, to increase total intake
• In cold conditions, offering slightly warmed water noticeably increases how much a dog drinks

Conditioning and the off season

A dog cannot be switched from sofa to season. Build fitness over six to eight weeks before the work starts, and scale the diet with the workload rather than ahead of it.

When the season ends, bring the food back down. A dog kept on a performance ration through a quiet winter will put on weight quickly, and the resulting joint load is exactly what you were trying to avoid.

Supplements

Most working dogs on a good performance diet do not need much. Where evidence is reasonable:

• Omega-3 fatty acids for joint and inflammatory support
• Joint supplements for older dogs or those with existing changes

Talk to your vet before adding anything, particularly for dogs on medication or with existing conditions. A working dog’s diet is worth getting right, and a vet who knows the discipline is worth finding.