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View Full Version : How many people here know what????


shootem
06-19-2003, 06:58 AM
How many people on this forum that have gun dogs know what the letters OFA mean? It is time we have a discussion on hip, elbow and eye certification and how important this is especially to people considering breeding or raising a litter.

cself02
06-19-2003, 08:01 AM
Oxygenated Fuels Association :ST: just kidding. I think it is very important.

winny
06-19-2003, 08:19 AM
It's very important, under the VDD organization, we do not allow dogs to be breed if they have HD.

shootem
06-19-2003, 12:08 PM
Breeders and the OFA

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Progress in hip joint phenotype of dogs in the United States between the 1970's and early 1990's has been shown through results of a retrospective study using the OFA data base. This improvement was evident as an increase in the percentage of dogs classified as having excellent hip joint phenotype and a decrease in the percentage of dogs classified as having hip dysplasia (HD). The increase in percentage of dogs classified as having excellent hip joint phenotype was greater for German Shepherd dogs, Golden Retrievers, Labrador Retrievers, and Rottweilers than for all dog breeds combined. In addition, the submission screening rate for these four breeds was higher than the screening rate for all dogs. Within these four breeds, the improvement was greatest for Rottweilers, which also had the highest screening rate.


Overall, low screening rates for breeds found in this study offer some insight into the problems involved with reducing the incidence of HD. The typical dog breeder is involved in breeding dogs for about five years. Thus, informed, experienced breeders are continually replaced with uninformed, inexperienced breeders who may not be as aware of the problems associated with HD or of the importance of participating in a screening program. In addition, many breeders choose which dogs they breed on the basis of the hip phenotype of individual dogs without knowledge of the phenotype of related dogs or previous offspring. It can be very difficult to get hip information on siblings and previous offspring due to the overall low number of dogs radiographed in a given litter (most dogs in a litter end up in pet homes). This is the slowest method of reducing the incidence of an undesirable trait or increasing the incidence of a desirable trait. The use of preliminary radiographs as early as 4 months of age can be used by breeders to add valuable information on the hip status of dogs they choose to use in a breeding program.

What can breeders do?

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Hip dysplasia appears to be perpetuated by breeder imposed breeding practices, but when breeders and their breed clubs recognize HD as a problem and establish reduction of HD as a priority, improvement of the hip status can be accomplished without jeopardizing other desirable traits. Prospective buyers should check pedigrees and/or verify health issues with the breeder. If suitable documentation is not available, assume the worst until proven otherwise.

winny
06-20-2003, 07:45 AM
Thanks, for the info. shootem, I'm sure this will be helpful to alot of people planning on getting a pup this spring.

Woods and Water
06-25-2003, 07:47 AM
Good topic........I think to many backyard breeders are turning out inferior dogs and in turn the dogs suffer needlessly.I would never purchase a dof without a five generation background(ofa.eye cert)and would never breed dogs that didnt have good - excellent ofa.
In my opinion it is worth doing and is worth the cost, you get better dogs and they sell better(to more informed owners).