Border Collies are widely regarded as the most intelligent dog breed, requiring at least two hours of mental stimulation each day. Without sufficient brain-engaging activities—such as nose work, trick training, or puzzle toys—they may develop behavioral problems.


Check for Compulsive Behavior
If your dog repeatedly chases its tail or shadows multiple times a day to the point that it interferes with eating and resting, this may indicate compulsive disorder rather than simple boredom. In such cases, mental stimulation alone is insufficient, and veterinary behavioral treatment is necessary. Please seek professional consultation before the behavior leads to self-injury.

| Item | Puppy (2–12 months) | Adult (1–7 years) | Senior (8 years and older) |
|---|---|---|---|
| Daily activity time | 30–60 min × several times | 30+ min of high-intensity exercise plus mental stimulation activities | Under 30 min, low-intensity |
| Recommended activities | Basic obedience/socialization | Agility/tricks/nosework | Nosework/simple puzzles |
| Agility | False | True | False |
| Puzzle toys | True | True | True |
| Cautions | No jumping that strains the hips | Watch for overheating | Minimize joint strain |
If there is a history of hip dysplasia or arthritis, adjust intensity after consulting your veterinarian

Get the MDR1 Gene Test
Border Collies belong to the herding group, which can carry mutations in the drug sensitivity gene (MDR1/ABCB1). This mutation has been reported in herding breeds such as Collies, Shetland Sheepdogs, and German Shepherds, as well as similar breeds. When this variation is present, the function of P-glycoprotein in the blood-brain barrier is reduced, allowing macrocyclic lactone drugs like ivermectin to enter the brain more readily, potentially causing severe neurotoxic reactions. Therefore, it is important to consult with your veterinarian to identify medications that require caution based on genetic test results. Given their high activity levels, Border Collies are frequently exposed to external parasites during walks and training sessions. Undergoing genetic testing during their initial health check-up can greatly assist in selecting safer deworming medications.

A veterinarian who majored in veterinary medicine at Khon Kaen University, Thailand, and completed the IVSA program at North Carolina State University in the United States. Drawing on clinical experience at animal hospitals, he works in the pet healthcare field and is dedicated to building a digital care environment that connects pet parents with veterinarians.
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[1] Coren S., The Intelligence of Dogs, Free Press, 2006
[2] Esson DW, Calvarese S., Clinical Atlas of Canine and Feline Ophthalmic Disease, 2nd Edition, Wiley, 2022 (Chapter 134: Collie Eye Anomaly)
[3] The Dog Care Handbook: Things I Wish My Vet Had Told Me
[4] Bennett D., Border Collie Health and Behavior Studies, Journal of Veterinary Behavior, 2019