McNab
| Size at withers | 40-63 cm |
|---|---|
| Weight range | 15-30 kg |
| Life expectancy | 13-15 years |
| Size class | Small–Medium (10–25 kg) |
| Normal resting vitals | Heart rate 70–120 bpm · Respiration 15–30/min · Temperature 38.3–39.2 °C |
| Temperament | Intelligent, hardy, focused; strong loose-eyed herding style; devoted to its handler |
| Common health issues | A hardy working landrace with few documented hereditary disorders |
| Exercise needs | Very high - a ranch dog needing extensive daily work |
| Climate & housing suitability | Moderate - the short coat handles heat better than most herders; suits rural, working homes over apartments. |
| Owner notes | Bred purely for stock work; the short single coat is more heat-practical than most sheepdogs. |
Origin and purpose
Herding (working landrace; USA). Origin: United States (California); ranch stock-herding dog.
Bred purely for stock work; the short single coat is more heat-practical than most sheepdogs.
What a breed was built to do explains most of what it will do in your home. A dog selected for hundreds of years to run, guard, herd, or hunt does not stop wanting to because it now lives in an apartment — the drive is the breed, and the owner's job is to give it somewhere to go.
Temperament and training
Stated temperament: Intelligent, hardy, focused; strong loose-eyed herding style; devoted to its handler
Reward-based training from the day the puppy arrives, with the socialisation window (roughly three to sixteen weeks) treated as the priority it is — what happens in those weeks shapes the adult dog more than anything you do later. Short, frequent, positive sessions. See Parts IV and IX.
Feeding
The most forgiving size to feed. A good-quality complete diet appropriate to the life stage, measured with a cup or scales rather than judged by eye, split into two meals a day. Weigh the food; guessing is how dogs get fat. Treats counted within the daily allowance, not added on top.
Exercise and enrichment
Stated requirement: Very high - a ranch dog needing extensive daily work
This is a genuinely high-energy dog and the commonest reason such dogs are rehomed is that their owners underestimated this. It needs hard daily physical exercise AND a job to think about; a walk around the block is not exercise for this breed. An under-exercised dog of this type becomes destructive, noisy, and anxious — behaviour problems that are, correctly understood, an exercise deficit.
Climate and living conditions
Stated suitability: Moderate - the short coat handles heat better than most herders; suits rural, working homes over apartments.
Ageing and senior care
Life expectancy: 13-15 years. This dog is a senior from around 8–9 years, at which point wellness examinations should move to twice a year and senior blood and urine screening begins. Watch for the gradual onset of arthritis, dental disease, and the endocrine conditions of middle age. Senior care →
Before you take one home
- Consider adoption. Shelters and rescues have dogs of every kind, including purebreds, and the local native or landrace dog is often healthier, better adapted to its climate, and more in need of a home than almost anything you can buy. See Part XII.
