Australian Shepherd feeding chart: portions by age and weight

Daily portion guide (adult)

These are the WSAVA Global Nutrition Committee’s calorie ranges for an average healthy adult dog in ideal body condition. They are starting points, not a prescription.

WSAVA gives these ranges for guidance only: dogs are individuals, and some need more or fewer calories to stay at an ideal, trim body condition. To turn calories into cups or grams, use the calories per cup or per 100 g printed on your food’s label: daily calories divided by calories per cup gives cups a day. The feeding guide on that label and your vet set the real amount, and your vet adjusts it by body condition: the WSAVA Global Nutrition Guidelines call for a feeding plan tailored to the individual dog.

Split into 2 meals. Energy needs drop after spaying or neutering (AAHA nutrition guidelines), so ask your vet how much to cut back.

Puppy (8 weeks to 12 months)

Puppy (growth) formula. Ask your vet whether a large-breed growth formula fits your puppy’s projected adult size. Meals taper with age: 4 a day until 3 to 4 months old, 3 a day until 6 months, then 2 (Merck Veterinary Manual; Blue Cross). Switch to adult food at about 15 months, when the skeleton has finished growing, once your vet confirms growth is finished (AAHA’s 2021 nutrition guidelines: a growth diet until skeletal maturity, about 1 year for small and medium-size dogs and closer to 15 to 16 months for some larger breeds).

Senior (from about 10 and a half years)

Senior age here is the last 25% of expected lifespan (AAHA 2019 Canine Life Stage Guidelines), counted from the breed’s median life expectancy in McMillan et al. 2024 (Scientific Reports). Older dogs do not automatically need less food or a senior formula: AAHA notes that energy needs may fall with age, but not consistently. Ask your vet to check weight, muscle and calories. Puzzle feeders keep meals engaging.

What makes feeding an Aussie different

Working dog metabolism. Aussies bred and worked as herders eat substantially more than pet Aussies. Same dog, different fueling.

MDR1 sensitivity. Some Aussies (and Mini Aussies / Miniature American Shepherds) carry the MDR1 mutation, which can cause severe reactions to some common drugs, according to Washington State University, which discovered it. A genetic test is available. Tell your vet the result before any drug or supplement.

Allergies. Skin, ear or paw signs that keep coming back are worth an elimination diet conversation with your vet.

Mental load fueling. Like Border Collies, mental work is as fatiguing as physical. Puzzle feeders and food-based training sessions extend engagement without adding calories.

Common breed concerns and feeding

• Hip / elbow dysplasia: lean weight + appropriate puppy formula.
• Allergies: elimination diet if recurring skin / ear flare-ups.
• MDR1: drug / supplement caution.
• Epilepsy (some lines): idiopathic epilepsy in Australian Shepherds is described in the Journal of Veterinary Internal Medicine (Weissl et al., 2012). If it is diagnosed, your vet guides treatment and any diet change.

Sample daily routine

Active pet Aussie, 50 lb (23 kg):

• 6:30am: breakfast (slow feeder)
• 7 to 8am: 45-min run / agility
• 12pm: 10-min training session
• 4pm: 30-min walk + puzzle work
• 6pm: dinner

What to keep track of

• Activity level vs portion match.
• Weight monthly.
• Skin / ear flares (allergy pattern).
• Mental enrichment time.

Related

• Australian Shepherd vaccination schedule
• Border Collie feeding
• German Shepherd feeding
• Pembroke Welsh Corgi feeding