The longhaireds is still the most rare hair variation in the country of origin, Holland. Only in Finland and Norway the longhaireds are more popular than others. In the 1960's when hardly no dogs of the breed were outside of Holland, the longhaired variation was re-built with a few breeding dogs. Then shorthaireds were used in widening the genepole. The shorthair crossings from 1966 and 1967 are behind every longhaired of today. At that time was built the bijlage-system into the registerations to show how far behind the shorthair crossing is in the pedigree of the dog.

short x long = G0
G0 x long = G1
G1 x long = G2
G2 x long = without bijlage
The registeration numbers of the G-bijlage dogs in Holland are NHSB-Bijl-G-(number of the bijlage)-(registeration number)

In 1984 was made two litters sired by a Belgian Shepherd Tervueren.
Then was created another registeration system.

tervu x long = F1
F1 x long = F2
F2 x long = F3
F3 x long = F4
The registeration numbers of the F-dogs are VR(registeration number) or later when other breeds were taken into the same kind of registeration system VRHH(registeration number). The short forms are coming from the words Verloopige Register and Verloopige Register Hollandse Herdershond.

The F4-dogs can be taken into the breed as G0-dog by a special judging. Those judgings have been arranged five times, three times in Holland and once in Finland. Obviously there won't be any more of these judgings, as the breeding has already gone so far in generations, that the F-dogs are already G-dogs. And there exsist even F-lined dogs who no more have a bijlage. All the judged dogs did not get taken into G-bijlage, but only the most Hollandse Herder type dogs. When passing the judging the F4-dog receives a new pedigree with a new registeration number like NHSB-Bijl-G-0-(new registeration number). After that the F-lined dogs do go through the same G-genareations as the dogs with shorthair background.

Why two different ways, F and G? Because those are after two different crossings. The shorthaired has the same character and costruction as the longhaireds and that's why those crossings get quicker the normal pedigree. The shorthair gene is dominant, so all the G0 dogs look out as shorthaireds, but those are registered as longhaireds, and those have not been used in further breeding with shorthaireds. In the G1-generation there come already longhaired outlooks, and when so that dog no more carries the shorthair gene. So far I know only the dogs with longhaired outlooks have been used in further breeding. After the 1960's shorthair crossings there have been theree more litters, born in 1988, 1992, 2001 and 2002 (in Finland, registered as shorthaireds).
In France and Finland (at least in these countries) the dogs are nowadays registered 'what they look out' so the G-0 dogs are registered as shorthaireds. And in France there are some longhaireds born of shorthaired parents which do have a longhaired pedigree.

On my 'Longhairworld' -homepage have I listed all the short x long -crossings and also both of the tervueren x long -crossings until the dogs without a bijlage,
and the longhaireds which I know to be born of shorthaired parents.

Continue by reading about the yellow HHs.