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Shetland Sheepdog

From Wikipedia, the free encyclopedia
Scottish breed of dog

"Sheltie" redirects here. For the horse breed, seeShetland pony.
Dog breed
Shetland Sheepdog
Other names
  • Shetland Collie (obsolete)
  • Dwarf Scotch Shepherd (obsolete)
Common nicknamesSheltie
OriginScotland
Traits
HeightMales
34.5–39.5 cm (14–16 in)
Females
33–38 cm (13–15 in)
Coatlong, double
Colour
  • sable
  • mahogany sable
  • shaded sable
  • tri-coloured
  • bi-black
  • bi-blue
  • blue merle
  • bi-blue merle
  • sable merle
  • colour-headed white
  • double merle
  • black-and-tan
Litter size4-6
Kennel club standards
KCstandard
Fédération Cynologique Internationalestandard
Dog (domestic dog)

TheShetland Sheepdog, also known as theSheltie, is a breed ofherding dog that originated in theShetland Islands of Scotland. It was formally recognized bythe Kennel Club in 1909. It was originally called theShetland Collie, but this caused controversy amongstRough Collie breeders of the time, so the name was changed.[1] It is a small dog, clever, vocal, willing to please, and trustworthy.

Like theShetland pony,Shetland cattle, and theShetland sheep, the Shetland Sheepdog is a hardy but diminutive breed developed to thrive amidst the harsh and meagre conditions ofits native islands. While the Shetland still excels atherding, today it is often raised as a working dog or family pet.[2]

The Shetland's origins are obscure, but it is not a direct descendant of theRough Collie, which it largely resembles. Rather, the Shetland is a descendant of small specimens of theScottish Collie and theKing Charles Spaniel. They were originally a smallmixed-breed dog, often only about 20 to 30 centimetres (8 to 12 inches) in height at the shoulder, and it is thought that the original Shetlandherding dogs were of theSpitz type, and were crossed withCollies from mainland Britain.[1] In the early 20th century, James Loggie added a smallRough Collie to thebreeding stock, and helped establish the breed that would become the modern Shetland Sheepdog.

History

[edit]
Photograph from 1915

Unlike many miniature breeds that resemble their larger counterparts, this breed was not developed simply byselectively breeding theRough Collie for smaller and smaller size. The original sheepdog ofShetland was aSpitz-type dog, probably similar to the modernIcelandic Sheepdog.[citation needed] Strong evidence suggests that this dog was bred with theYakki, an Icelandic dog that accompaniedwhalers fromGreenland who landed in the ports of the island. The Yakki was about 14 inches (36 cm) in height and usually black with tan or white markings. Many of the early Shetlands were black and white or black and tan and this colouring can still be see in the muzzle of some sable dogs today whose muzzles are referred to as "smutty muzzles". Folk tales also mention aKing Charles Spaniel that came from a yacht.Pomeranian dog ancestry is likely given the appearance of the breed. The first club for the breed called for a dog similar to the Rough Collie except in size, the standard called for dogs to be no taller than 15 inches (38 cm). Other clubs called for similar standards with the breed to essentially be a miniature. These standards led to people adding in collie blood to the breed to achieve said type. TheKennel Club originally refused to recognise the breed but later agreed to on the condition the name was changed from Shetland Collie due to opposition from collie breed clubs.[1] The original Spitz-type working sheepdog of Shetland is now extinct, having been replaced forherding there by the Border Collie. Shetlands were used for herding until commercial livestock farming required larger breeds.[3]

When the breed was originally introduced breeders called them Shetland Collies, which upset Rough Collie breeders, so the name was changed to Shetland Sheepdog.[1][4] During the early 20th century (up until the 1940s), additional crosses were made to Rough Collies to help retain the desired Rough Collie type – in fact, the first English Shetland champion's dam, Gesta, was a rough Collie.[5] The year 1909 marked the initial recognition of the Shetland by the English Kennel Club, with the first registered Shetland being a female called Badenock Rose. The first Shetland to be registered by theAmerican Kennel Club was "Lord Scott" in 1911.[6]

Appearance

[edit]
The sable
The blue merle

The general appearance of the Shetland is that of a miniatureRough Collie.[1] They are a small and double coated dog with a well shaped head. They have a long coat which becomes short around the face giving it the appearance of a mane.

Coat and colours

[edit]
The bi-blue, with blue eyes caused by the merle factor

Shetlands have a double coat, which means that they have two layers of fur that make up their coat. The outer coat is made up of long hair and is "harsh-textured and straight". The undercoat is soft, short, and close to the skin. The long coat should produce the appearance of a mane. The face is smooth haired.[7]

Shetlands may come in the following colours.

  • Sable – either clear or shaded sable ranging in colour from pale gold to mahogany. Wolf-sable and grey are undesirable colours.
  • Tricolor – with intense black on the body and rich tan markings preferred.
  • Blue merle – silvery blue with splashed and marbled black preferred. General effect of the coat must be blue. Rich tan markings are also preferred but there is no penalty for the absence of this. Strong black markings, slate or rusty tinges in the coat are highly undesirable.
  • Black and white & black and tan[7]

White markings may appear on any coat besides black and tan but patches on the body are undesirable.[7]

Height

[edit]
A 12-month-old Sheltie onMull

The ideal height at the withers is 1412 inches (37 cms) for dogs and 14 inches (35.5 cm) for bitches. More than 1 inch (2.5 cm) in variation from these heights is undesirable.[7]

Ears

[edit]
A tri-colour puppy

The Shetland's ears are small and of moderate width at the base placed close on top of the head. When alert the ears are semi-erect and propped forward.[7]

Eyes

[edit]
See also:Heterochromia

Eyes are of medium size and are almond shaped. Eyes are always dark brown except in dogs with merle coats where one or both of the eyes may be blue.[7]

Head

[edit]

The head is refined without any exaggerations. The head has a long wedge tapering from the ears to nose. Theoccipital bone isn't prominent. The cheeks are flat to support a well rounded muzzle. The muzzle is of equal length to the skull, dividing at the corner of the eye. Themucocutaneous parts of the face are black in pigmentation.[7]

Body

[edit]

Neck is well arched and muscular. Legs are muscular. The dog is slightly longer than it is tall with a deep chest.[7]

Temperament

[edit]
Apart from their size difference, Shetlands and Rough Collies look very much alike.

According toStanley Coren, an expert on animal intelligence, the Shetland Sheepdog is one of the brightest dogs, ranking 6th out of 138 breeds tested. His research found that an average Shetland could understand a new command in fewer than five repetitions and would obey a command the first time it was given 95% of the time or better.[8]

Health

[edit]

A Japanese study of pet cemetery data found a life expectancy of 14.3 years with 239 dogs—higher than 13.7 overall life expectancy.[9] A UK study found a life expectancy of 13.4 years for the breed compared to an average of 12.7 for purebreeds and 12 forcrossbreeds.[10]

The Shetland is predisposed to the following dermatological conditions:allergic skin disease,cutaneous drug eruptions,cutaneous histiocytosis, cutaneous orsystemic lupus,dermatomyositis, andSertoli cell tumour.[11][page needed]

Shetland Sheepdogs have four times the risk of other dogs of developingtransitional cell carcinoma, acancer of the bladder.[12]

A North American study of over a million hip scores in dogs over the age of two found the Shetland to have the fifth-lowest prevalence out of sixty breeds—4.2% of Shetlands hadhip dysplasia.[13]

Von Willebrand disease is an inherited bleeding disorder. The Shetland is affected by both type I and type III.[14]

Collie eye anomaly is anautosomal recessive inherited trait which results in incomplete closure of theembryonic fissure, seen almost exclusively in Collies, Border Collies and Shetland Sheepdogs.[15]

This mostly white Shetland has several conformational faults, such as pricked ears, too much white colouration (due to it being a double merle),microphthalmia, and pink spots in the nose. This dog would not be considered breeding stock.

A mutation the MDR1 gene causes sensitivity to certain drugs such asivermectin. This sensitivity has been observed in the Shetland. The MDR1 mutation has been identified in the Shetland and the breed was identified as predisposed in a study in the US.[16] Due to this genetic mutation, affected dogs may exhibit sensitivity or adverse reactions to many drugs, includingacepromazine,butorphanol,doxorubicin,erythromycin,ivermectin,loperamide,milbemycin,moxidectin,rifampin,selamectin,vinblastine, andvincristine.[17][18]

Ulcerative dermatosis of Shetland sheepdog and rough collie (UDSSC) is a disease that is believed to be avesicular variant ofdiscoid lupus erythematosus. It is an ulcerative dermatosis that affects the thigh, groin, axillae, and ventral abdomen.[19]

A UK study found a significant predisposition togall bladder mucocele, with the breed being 93.87 times more likely to acquire the condition than other dogs.[20] A study looking at the increased incidence ofhepatobiliary disease in the Shetland Sheepdog found that aninsertion mutation of theABCB4 gene that occurs in the Shetland Sheepdog—as well as other breeds—had a significant association with gall bladder mucocele prevalence.[21]

Working life

[edit]

As the name suggests, Shetland Sheepdogs can and have been used assheepdogs, and they still participate insheepdog trials.[22][page needed]

Activities

[edit]

In their size group, the breed dominatesdog agility,obedience,showmanship,flyball,tracking, andherding.[citation needed] Herding instincts and trainability can be measured at noncompetitive herding tests. Shetlands exhibiting basic herding instincts can be trained to compete in herding trials.[23]

Famous Shetland Sheepdogs

[edit]

See also

[edit]

References

[edit]
Wikimedia Commons has media related toShetland Sheepdog.
  1. ^abcdeHerbert, Beryl & Joan (1961).The Shetland Sheepdog. New York, New York: Arco Publishing Company, inc.ISBN 0-668-03976-0.{{cite book}}:ISBN / Date incompatibility (help)
  2. ^"Shetland sheepdog."The Columbia Encyclopedia. New York: Columbia University Press, 2008. Credo Reference. Web. 17 September 2012.
  3. ^McKinney, Betty Jo; Riesberg, Barbara (1985).Sheltie Talk. Loveland, Colorado: Alpine Publications. p. 2.ISBN 0-931866-17-0.
  4. ^McGowan, Charlotte Clem (1999).The Shetland Sheepdog in America. Best Friends.
  5. ^Bowling, Sue Ann."Collie Crosses behind Shetland Sheepdogs".bowlingsite.mcf.com. Retrieved21 October 2021.
  6. ^abBowling, Sue Ann."Shetland Sheepdog Breed History".bowlingsite.mcf.com. Retrieved4 April 2011.
  7. ^abcdefgh"Shetland Sheepdog Standard".The Kennel Club. Retrieved12 March 2024.
  8. ^Coren, Stanley (1995).The Intelligence of Dogs. Bantam Books.ISBN 0-553-37452-4.
  9. ^Inoue, Mai; Kwan, Nigel C. L.; Sugiura, Katsuaki (2018)."Estimating the life expectancy of companion dogs in Japan using pet cemetery data".Journal of Veterinary Medical Science.80 (7). Japanese Society of Veterinary Science:1153–1158.doi:10.1292/jvms.17-0384.ISSN 0916-7250.PMC 6068313.
  10. ^McMillan, Kirsten M.; Bielby, Jon; Williams, Carys L.; Upjohn, Melissa M.; Casey, Rachel A.; Christley, Robert M. (1 February 2024)."Longevity of companion dog breeds: those at risk from early death".Scientific Reports.14 (1). Springer Science and Business Media LLC.doi:10.1038/s41598-023-50458-w.ISSN 2045-2322.PMC 10834484.
  11. ^Hnilica, Keith A.; Patterson, Adam P. (19 September 2016).Small Animal Dermatology. St. Louis, Missouri: Saunders.ISBN 978-0-323-37651-8.
  12. ^Clinical Medicine of the Dog and Cat, 2nd ed., ed. Michael Schaer, p. 528.
  13. ^Oberbauer, A. M.; Keller, G. G.; Famula, T. R. (24 February 2017)."Long-term genetic selection reduced prevalence of hip and elbow dysplasia in 60 dog breeds".PLOS One.12 (2) e0172918.doi:10.1371/journal.pone.0172918.ISSN 1932-6203.PMC 5325577.
  14. ^Julie B. Anderson; Kenneth S. Latimer; Perry J. Bain; Heather L. Tarpley."Von Willebrand's Disease". Archived fromthe original on 18 September 2011. Retrieved2 April 2011.
  15. ^"Collie."Saunders Comprehensive Veterinary Dictionary. Philadelphia: Elsevier Health Sciences, 2007. Credo Reference. Web. 17 September 2012.
  16. ^Neff, Mark W; Robertson, Kathryn R.; Wong, Aaron K.; Safra, Noa; Broman, Karl W.; Slatkin, Montgomery;Mealey, Katrina L.; Pedersen, Niels C.; Motulsky, Arno G. (2004)."Breed Distribution and History of Canine Mdr1-1δ, a Pharmacogenetic Mutation That Marks the Emergence of Breeds from the Collie Lineage".Proceedings of the National Academy of Sciences of the United States of America.101 (32):11725–11730.doi:10.1073/pnas.0402374101.PMC 511012.PMID 15289602.
  17. ^"MDR1 Gene Mutation- Flier"(PDF). Archived fromthe original(PDF) on 12 April 2015. Retrieved2 April 2011.
  18. ^"Problem Drugs – MDR1 Gene Mutation".
  19. ^Rhodes, Karen Helton; Werner, Alexander H. (25 January 2011).Blackwell's Five-Minute Veterinary Consult Clinical Companion. Ames, Iowa: Wiley-Blackwell. p. 181.ISBN 978-0-8138-1596-1.
  20. ^Bandara, Y.; Bayton, W. A.; Williams, T. L.; Scase, T.; Bexfield, N. H. (2021). "Histopathological frequency of canine hepatobiliary disease in the United Kingdom".Journal of Small Animal Practice.62 (9):730–736.doi:10.1111/jsap.13354.ISSN 0022-4510.
  21. ^Mealey, Katrina L; Minch, Jonathan D; White, Stephen N; Snekvik, Kevin R; Mattoon, John S (2010)."An insertion mutation in ABCB4 is associated with gallbladder mucocele formation in dogs".Comparative Hepatology.9 (1).doi:10.1186/1476-5926-9-6.ISSN 1476-5926.PMC 2904718.PMID 20598156.
  22. ^Serpell, James, ed.The Domestic Dog: its evolution, behaviour and interactions with people. New York: Cambridge University Press, 1995. Print.
  23. ^Hartnagle-Taylor, Jeanne Joy; Taylor, Ty (2010).Stockdog Savvy. Alpine Publications.ISBN 978-1-57779-106-5.
  24. ^Bowling, Sue Ann."Register of Merit Shetland Sheepdogs".bowlingsite.mcf.com. Retrieved4 April 2011.
  25. ^Bowling, Sue Ann."Ch Halstors Peter Pumpkin ROM".bowlingsite.mcf.com. Retrieved4 April 2011.
  26. ^"Mickey's Farm".The Pet Network. Retrieved4 May 2014.
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