I have started this new thread about EBV's, I know we were discussing the subject the other day ,but I can't find the Thread, and I just thought this might be of a wee bit of interest to others who might be interested in the subject.
EBV's will work where Breeders of any Species agree to Systematically measure the same Phenotypic features and where there is evidence for Heritability of those Traits .
It has been applied to Economically Characteristics in Cattle,Sheep, Goats etc for live Birth Weight ,Weaning Weight ,Eye Muscle Depth Greasy Wool Weight ,Fineness of Wool etc.
So there is no reason to suppose that EBV's could not be applied to Dog Breeding unless,
1,...No agreed Measure of the Trait Exists .
2.... The Trait has little or no Heritability
3 ......Insufficient numbers of Breeders agree to Measure the Same Trait in the Same Way and Share that Data in a National Scheme.
Dr Malcolm Willis ,Geneticist, here in Britain developed Progeny Data for Hip Scores provided an EBV for Sires for many Breeds.Sires with more than 10 Progeny Hip-Scored for a Variety of Dams were given fairly reliable EBV's for their ability to reduce (or in some cases increase) Hip Scores,those with more than 20 Scored Progeny were given quite reliable EBV's
The Value of this Data was that it was the Owners of the Progeny that agreed to the use of the Data so the Owner of a Stud Dog could not Supress the poor EBV's of his Dog.
In the 1990's ,the use of these EBV's by Breeders of German Sheperds and some other Breeds helped to turn around the Poor Hips in a few Generations,bringing down the Averages and making Breeders aware of Studs that improved or worsened the Hips of Progeny when put across unrelated Dams.
Could this be the same work that is involved for our Cavaliers and their SM Problem.?
EBV's will work where Breeders of any Species agree to Systematically measure the same Phenotypic features and where there is evidence for Heritability of those Traits .
It has been applied to Economically Characteristics in Cattle,Sheep, Goats etc for live Birth Weight ,Weaning Weight ,Eye Muscle Depth Greasy Wool Weight ,Fineness of Wool etc.
So there is no reason to suppose that EBV's could not be applied to Dog Breeding unless,
1,...No agreed Measure of the Trait Exists .
2.... The Trait has little or no Heritability
3 ......Insufficient numbers of Breeders agree to Measure the Same Trait in the Same Way and Share that Data in a National Scheme.
Dr Malcolm Willis ,Geneticist, here in Britain developed Progeny Data for Hip Scores provided an EBV for Sires for many Breeds.Sires with more than 10 Progeny Hip-Scored for a Variety of Dams were given fairly reliable EBV's for their ability to reduce (or in some cases increase) Hip Scores,those with more than 20 Scored Progeny were given quite reliable EBV's
The Value of this Data was that it was the Owners of the Progeny that agreed to the use of the Data so the Owner of a Stud Dog could not Supress the poor EBV's of his Dog.
In the 1990's ,the use of these EBV's by Breeders of German Sheperds and some other Breeds helped to turn around the Poor Hips in a few Generations,bringing down the Averages and making Breeders aware of Studs that improved or worsened the Hips of Progeny when put across unrelated Dams.
Could this be the same work that is involved for our Cavaliers and their SM Problem.?