Rough Collie

Sheepdogs & cattledogs

Medium

Median 13.3 y

FCI group 1 · Sheepdogs and Cattledogs (except Swiss Cattledogs) · Derived from the adult weight midpoint (23.3 kg)

Median survival across 3,275 UK dogs (VetCompass, McMillan 2024) · half live 10–15 y

The Rough Collie or Long-Haired Collie is a British breed of long-coated herding dog of medium to large size. It is identical to the Smooth Collie in all respects but the length of the coat. Dogs of both breeds were bred for herding sheep in Scotland.

Devoted

Graceful

Proud

Summary from Wikipedia (CC BY-SA) · reference ranges from the Kintail breed dataset

Adult weight

Reference

Male

20.5–29.5 kg

Female

18–25 kg

The Kennel Club standard for Collie (Smooth), shared with the Rough bar coat

Two types. The AKC and the KC/FCI standards describe a different-sized Rough Collie, so Kintail bands your dog against the one your region follows — set it in Settings. KC/FCI type: males 20.5–29.5 kg at 56–61 cm, females 18–25 kg at 51–56 cm. AKC type: males 27.2–34 kg at 61–66 cm, females 22.7–29.5 kg at 55.9–61 cm.

Weight for age

Stock data

Male

Female

Expected range

Expected range from the breed's own adult weight, kilograms. Growth reference: Salt et al. 2017, WALTHAM (15–30 kg band).

Heat cycles · females

Stock data

First heat

8–12 mo

typical

Interval

180 d

typical

Bleeding

~9 d

typical

Proestrus 9d

Estrus 9d

Diestrus 52d

Anestrus 110d

General figures for dogs, not for this breed — individual cycles vary widely.

Questions people ask

Adult males usually weigh 20.5–29.5 kg and females 18–25 kg. Most are close to their full size by around 15 months, though the last little bit of filling out takes longer. Growth reference: Salt et al. 2017, WALTHAM (15–30 kg band).

No Rough Collie cycle figures are published here yet, so this is general guidance rather than a breed number: most females have a first season somewhere between six and fifteen months, and cycles then settle to roughly every 180 days. Smaller breeds tend to start earlier and larger ones later.

The median is 13.3 y. Median survival across 3,275 UK dogs (VetCompass, McMillan 2024) · half live 10–15 y. How the later years go comes down to weight, teeth, exercise and regular check-ups far more than to the breed.