Meet Rhaenyra . . .
Brookhaven's Rhaenyra - Princess of Dragonstone
April 2, 2024
OFA Hips - pending 2 years of age (estimate early May 2026)
OFA Elbows - pending 2 years of age (estimate early May 2026)
OFA Patella Luxation - Pending exam (estimate mid April 2026)
OFA Eyes - Normal (24)
OFA Heart - Prelim Normal at 7 weeks of age
OFA Full Dentition & Scissor Bite - Pending confirmation (estimate mid April 2026)
DNA Genetic Testing:
Any dog must carry two copies of these diseases in order to be affected.
Rhaenyra does not carry any copies of the following diseases, meaning she can never suffer from these diseases and none of her first generation offspring can be affected by these diseases.
Rhaenyra is clear/normal for:
Centronuclear Myopathy (CNM) - by parentage
Chondrodystrophy with Intervertebral Disc Disease (CDDY with IVDD)
- with or without Chondrodysplasia (CDPA)
Cone-Rod Degegneration (Labrador Retriever Type)
Congenital Myasthenic Syndrome (Labrador Retriever Type) - by parentage
Cystinuria (Labrador Retriever Type) - by parentage
Degenerative Myelopathy (DM) - by parentage
Dilute (pure for Labrador) - by parentage
Elliptocytosis - by parentage
Exercise Induced Collapse (EIC) - by parentage
Hereditary Nasal Parakeratosis (HNPK)
Hyperuricosuria
Ichthyosis (Golden Retriever Type)
Laryngeal Paralysis & Polyneuropathy (Leonberger Type 3)
Long Coat - by parentage
Macular Corneal Dystrophy (Labrador Retriever Type)(MCD) - by parentage
Myotonia Congenita (Labrador Retriever Type)
Myotubular Myopathy 1
Narcolepsy (Labrador Retriever Type)
Progressive Retinal Atrophy, Cone-Rod Dystrophy 4 (PRA4) - by parentage
Progressive Retinal Atrophy, Golden Retriever 2 (PRA-GR2) - by parentage
Progressive Retinal Atrophy, Progressive Rod-Cone Degeneration (PRCD) - by parentage
Pyruvate Kinase Deficiency (Labrador Retriever Type)(PKU)
Retinal Dysplasia/Oculoskeletal Dysplasia 1 (RD/OSD) - by parentage
Skeletal Dysplasia 2 (SD2) - by parentage
Stargardt Disease - by parentage
Ullrich Congenital Muscular Dystrophy Labrador Retriever Type 2
At-Risk Genetic Testing:
New DNA tests for genetic diseases are continually being discovered.
Some of these tests do not determine definitively if a dog has a specific disease, they only determine if a dog has a mildly or moderately increased risk of developing the disease. These diseases may have other causes so it is important to know that dogs that test clear may still develop the disease while dogs who test mildly or moderately at-risk may never develop the disease.
We believe that all Brookhaven Labradors should be tested for these genetic variants/mutations to make informed breeding decisions,
Rhaenyra's test results are as follows:
Copper Toxicosis (Labrador Retriever Type is the body's inability to excrete excess copper resulting in chronic liver failure.
- Type A Protective Gene - this gene protects against the genetic predisposition the Type B At-Risk gene.
*Rhaenyra carries two copies of this gene and will pass the protection ability of this gene on to all of her offspring
- Type B - this gene mildly or moderately increases the risk of developing the disease.
*Rhaenyra does NOT carry the at-risk gene, she & her offspring will not be at an increased risk towards the disease from her DNA.
Ehlers-Danlos Syndrome (Labrador Retriever Type) is a Tissue Connective Disease, it is estimated that as many as 20 genes may carry the mutation for each variant.
- Variant 1, Classic Symptoms, it is estimated that 1 in 5,000 Labradors are affected.
*Rhaenyra's does NOT carry the at-risk gene, she & her offspring will not be at an increased risk towards the disease from her DNA.
-Variant 2, is less severe than variant one but is rare, it is estimated that 1 in 25,000 Labradors are effected.
*Rhaenyra does NOT carry the at-risk gene, she & her offspring will not be at an increased risk towards the disease from her DNA.
Ullrich Congenital Muscular Dystrophy (Labrador Retriever Type 1)
- (Labrador Retriever Type 1) is a rare muscle disease in Labradors that appears around 3 to 4 months of age. It is estimated that 1 in 100,000 Labradors are affected. This disease has two variants, the second variant is a recessive trait so it provides a more definitive answer (listed under DNA Genetic Testing above). Variant 1 is an at-risk trait, so a Labrador who carries one or two of the mutations may be affected or might not be affected. It is possible that Labradors who do not carry this variant can still be affected.
*Rhaenyra does NOT carry the at-risk gene, she & her offspring will not be at an increased risk towards the disease from her DNA.
View Rhaenyra's
4 Generation Pedigree with Clearances
