A statement from the Irish Setter Breed Clubs Health Coordinators
Committee concerning
Late Onset Progressive Retinal Atrophy (LOPRA)
Recently, DNA samples from Irish setters diagnosed with Late Onset
Progressive Retinal Atrophy (LOPRA) have been submitted to the Animal Health
Trust for genetic analysis. So far several dogs have been diagnosed with two
copies of the rcd-4 mutation (i.e. homozygous). This means these dogs are
clinically affected with a condition that has previously been described in
Gordon setters.
The Animal Health Trust is hoping to release a DNA test for rcd-4 in
Irish setters in the near future and when it is available the scale of the
problem in the breed can be assessed and an appropriate strategy to eradicate
the condition can begin. Until that time the Committee advises against panic and
ill‑informed rumour.
Whilst the recognition of LOPRA in the breed is a serious and unwanted
development, we should take heart that previous genetic problems (e.g. PRA
rcd-1, CLAD) in the breed have been conquered by dedicated breeders implementing
controlled breeding schemes, and there is no reason to doubt an eradication
programme, when launched, will be successful.
Professor
Ed Hall
Chairman, Irish
Setter Breed Clubs Health Coordinators Committee
Irish Setter Breed Clubs Health Coordinators Committee
Late Onset Progressive Retinal Atrophy (LOPRA)
Following the discovery of Irish setters clinically affected with LOPRA
in association with two copies of the rcd-4 gene (i.e. homozygous), so far the
following six dogs (in alphabetical order) have been identified as affected.
·
Joben Midnight Memories
·
Joben Midnight Moments
·
Konakakela Red Admiral at
Ixia
·
Millcroft the Moon's Shadow
·
Starchelle Buddy Holly
·
Wickenberry Capsicum
These names are being published with the permission of their
owners/breeders in a spirit of openness in order to alert responsible owners and
breeders and to prevent the propagation of unfounded rumours.
We await an announcement from the Animal Health Trust on when the rcd-4
test will be made available.
Professor
Ed Hall