| The Norberg Angle Method states that average scores range between 55 and 115 with 105 being considered normal dog hips and the lower scores representing dogs with excessive hip laxity. After scoring all available x-rays using the Norberg Method and comparing them to already graded hips we have found that our system for scoring hips does correlate with other styles for evaluating dog hips. At this time our passing grade will be an average Norberg Angle of 100 and our conditional pass will be an average Norberg Angle of 95. Dogs that receive a conditional pass will only be permitted to breed to dogs with a score of 105 or greater. All x-rays are available to the public! Contact dhomhnuillbulldogs@yahoo.ca for info on Hip screenings or to view a dogs score. |
| The following is a out line of the test needed to pass and ailments that the dogs must be free of in order to be eligable in our Dhomhnuill Style Bulldog breeding programd . |
| Example of a Blue Ribbon Health Certification form |
Here at Dhomhnuill Kennels we are
striving to produce a healthy and fit
alternatives to the CKC & AKC Bulldog
trademarked as the Dhomhnuill Style
BulldogTM. To do this we work with a
health certification program.
striving to produce a healthy and fit
alternatives to the CKC & AKC Bulldog
trademarked as the Dhomhnuill Style
BulldogTM. To do this we work with a
health certification program.
| We have viewed and screened many alternative Bulldog and Bull breed hip x-rays to help us find a base line for our program. We have also scored many x-rays using the Norberg method that have already been OFA scored as excellent through mild. To better help people understand how our hip certification program works we have provided examples of excellent through mild scored X-rays as well as there Norberg Angle score. |
| LEAVITT BULLDOG X-RAYS |
| 113 avg. N.A. (GOOD) |
| 98 avg. N.A. (BARELY PASS) |
Frequently, breeders want early knowledge of the hip status on puppies in a given litter. Preliminary hip evaluations
are a valuable tool for a breeder. This allows early selection of dogs for use as show/performance and breeding
prospects.
The OFA accepts preliminary consultation radio graphs on puppies as young as 4 months of age for evaluation of hip
conformation. If the dog is found to be dysplastic at an early age, the economic loss from the cost of training,
handling, showing and so forth can be minimized and the emotional loss reduced.
A recent publication compared the reliability of the preliminary evaluation hip grade phenotype with the 2 year old
evaluation in dogs and there was 100% reliability for a preliminary grade of excellent being normal at 2 years of age
(excellent, good, or fair). There was 97.9% reliability for a preliminary grade of good being normal at 2 years of age,
and 76.9% reliability for a preliminary grade of fair being normal at 2 years of age. Reliability of preliminary
evaluations increased as age at the time of preliminary evaluation increased, regardless of whether dogs received a
preliminary evaluation of normal hip conformation or HD. For normal hip conformations, the reliability was 89.6% at
3-6 months, 93.8% at 7-12 months, and 95.2% at 13-18 months. These results suggest that preliminary evaluations
of hip joint status in dogs are generally reliable. However, dogs that receive a preliminary evaluation of fair or mild hip
joint conformation should be reevaluated at an older age (24 months).
We except preliminary evaluations following these same guide lines only using our Norberg
Angle Method for grading.
are a valuable tool for a breeder. This allows early selection of dogs for use as show/performance and breeding
prospects.
The OFA accepts preliminary consultation radio graphs on puppies as young as 4 months of age for evaluation of hip
conformation. If the dog is found to be dysplastic at an early age, the economic loss from the cost of training,
handling, showing and so forth can be minimized and the emotional loss reduced.
A recent publication compared the reliability of the preliminary evaluation hip grade phenotype with the 2 year old
evaluation in dogs and there was 100% reliability for a preliminary grade of excellent being normal at 2 years of age
(excellent, good, or fair). There was 97.9% reliability for a preliminary grade of good being normal at 2 years of age,
and 76.9% reliability for a preliminary grade of fair being normal at 2 years of age. Reliability of preliminary
evaluations increased as age at the time of preliminary evaluation increased, regardless of whether dogs received a
preliminary evaluation of normal hip conformation or HD. For normal hip conformations, the reliability was 89.6% at
3-6 months, 93.8% at 7-12 months, and 95.2% at 13-18 months. These results suggest that preliminary evaluations
of hip joint status in dogs are generally reliable. However, dogs that receive a preliminary evaluation of fair or mild hip
joint conformation should be reevaluated at an older age (24 months).
We except preliminary evaluations following these same guide lines only using our Norberg
Angle Method for grading.
| Dhomhnuill Style Bulldog Hip Screening Policies |
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| Bulldog Association Web site. These two dogs scored 8/10 GOOD and 2.5/10 BARELY PASS. ALL X-RAYS INCLUDE THERE NORBERG ANGLE SCORING |
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