Czechoslovakian Wolfdog

History

In 1955, Karel Hartl began to consider crossing a Carpathian grey wolf with a German Shepherd (, , ) as a scientific experiment in the military kennels in Czechoslovakia. The first hybrids of a female wolf named Brita and a male sable German Shepherd named Cézar z Březového háje were born on 26 May 1958 in Libějovice, Czechoslovakia (modern-day Czech Republic).

Puppies of the first generation resembled the wolf in appearance and behavior. Their upbringing was difficult; training was possible, but the results hardly matched the effort. In adulthood, they were again bred with German Shepherds, decreasing the proportion of wolf blood to 6.25% by the fourth generation. Most individuals of the third and fourth generations were able to attend a normal course and could be placed in service performance. Compared with dogs they had better navigational skills, night vision, hearing, and sense of smell. In tests of endurance, hybrids finished the entire 100-kilometre route without being exhausted.

A lecture by Hartl, "Results of crossing wolves with dogs", brought major attention at the World Dog Show held in June 1965 in Brno, and in Prague at the annual meeting of the Fédération Cynologique Internationale and the International Cynologic Congress. In the following year Hartl compiled a draft standard of a new dog breed. Mating of the wolf Brita with the sable German Shepherd Kurt then created the basis of a second line. A third line was made by joining the wolf Argo with the female German Shepherd Astra from the SNB. In 1977, a third-generation hybrid female named Xela of the border guards was covered by the wolf Sarika; he also mated with the female Orta of the border guards.

However, the breed-in-foundation repeatedly refused recognition, and in the 1970s, most breeding dogs were moved to the Slovak military kennels near Malacky, under the supervision of Vice commander Major František Rosík. In 1971–1981, litters were born only in Slovakia. In 1982, the Club of Czechoslovakian Wolfdog Breeders (Klub chovatelů československého vlčáka) was founded in Brno, with authority over the entire territory of former Czechoslovakia.

In 1982, the breed was again presented for recognition by František Rosík through the Club of Czechoslovakian Wolfdog Breeders (now divided into Czech and Slovak Breed Club), and this time, it was recognized by the Czechoslovak breeders' associations as a national breed. The last addition of wolf blood took place in 1983. The wolf Lejdy of Ohrada Zoo in Hluboká nad Vltavou gave birth to the last line of the new breed, the father of the puppies being the DDR Working Line German Shepherd V Bojar von Schotterhof SchH3, ZVV2, SP/PS. Since that time, breeding has been carried out only in closed populations and the developed breed referred to as Czechoslovakian Wolfdogs.

The Ceskoslovenský Vlciak was definitely accepted by the Fédération Cynologique Internationale in 1999, listed in its Sheepdogs and Cattledogs group of breeds.

In 2012, the breed numbered 168 adult females and 170 adult males officially registered in the Czech Republic.

In 2015, a DNA study of the breed compared to German Shepherds and Carpathian wolves found only two maternal mitochondrial DNA haplotypes and two paternal Y DNA haplotypes within the breed. Both mDNA haplotypes and one yDNA haplotype originated with German Shepherd Dogs and was the result of back-crossing. The other yDNA haplotype was unique to the breed. All four haplotypes were distinct from those of the parental populations. The results indicate limited introgression of lupine alleles (genetic expressions) within a higher proportion of the canine genome, which is consistent with the backcrossing used in the breed.

The American Kennel Club published a breed standard in 2024.

Characteristics

Minimum height at the withers is for dogs and for bitches, and minimum body weights are and respectively.

The coat is straight, close-fitting, and very thick in the winter months of the year, but thinner in summer. The coat colour varies from silver-grey to yellow-grey, always with a light mask and light hair on the chest and under the neck; it may also be dark grey, still with a light mask.

Use

Some of the dogs have been used in search-and-rescue work in the United Kingdom.

References

References

1. Štýbr, Jakub. (14 August 2024). "Karel Hartl & Československý vlčák (2. část)". Psí Sporty.
2. "Krátká historie plemene československý vlčák".
3. "About the breed". The Czechoslovakian Wolfdog Club of GB.
4. Marek, Lukáš. (23 March 2019). "V zámku armáda křížila vlka s ovčákem. Dnes je zapomenutý a chátrá". [[iDNES.cz]].
5. (2015). "From Wolves to Dogs, and Back: Genetic Composition of the Czechoslovak Wolfdog". PLOS ONE.
6. "About the club". The Czechoslovakian Wolfdog Club of GB.
7. [https://s3.amazonaws.com/cdn-origin-etr.akc.org/wp-content/uploads/2017/10/01113955/Czechoslovakian-Vlciak.pdf Official Standard of the Czechoslovakian Vlciak]. New York: American Kennel Club. Accessed January 2026.
8. [https://www.fci.be/en/nomenclature/CZECHOSLOVAKIAN-WOLFDOG-332.html FCI breeds nomenclature: Ceskoslovenský Vlciak (332)]. Thuin, Belgium: Fédération Cynologique Internationale. Accessed January 2026.
9. [https://www.fci.be/Nomenclature/Standards/332g01-en.pdf FCI-Standard N° 332: Ceskoslovenský Vlciak (Czechoslovakian Wolfdog)]. Thuin, Belgium: Fédération Cynologique Internationale. Accessed January 2026.