Joint issues found in half of standardbreds in study
Half of a grouping of Norwegian standardbred horses of the same historic menses suffered from unloosen os fragments too defects inwards their joints, query reveals.
The doctoral query projection carried out at the Norwegian School of Veterinary Science revealed that 50.7 per cent of the horses studied had such problems.
Sigrid Lykkjen, a Dr. of veterinarian medicine, took x-rays of 464 year-old standardbred trotters born inwards 2006 too 2007 too discovered that 21.5 per cent of them had osteochondrosis inwards the hock too 23.1 per cent suffered from Birkeland fractures of the fetlock.
Osteochondrosis is a term used to depict a grouping of disorders that impact the growing skeleton. Birkeland fractures involve fleck or avulsion-type fractures of the palmar or plantar proximal human face of the get-go phalanx.
Osteochondrosis, Birkeland fractures too other unloosen fragments inwards joints are oftentimes occurring orthopaedic diseases inwards horses. They tin outcome inwards lameness too weaker performance.
The occurrence of osteochondrosis constitute inwards Lykkjen’s work was significantly higher than that previously reported inwards Norwegian too Swedish studies.
X-ray findings from an before Norwegian study of 753 standardbred trotters too pedigree information were included inwards the study when calculating the genetic parameters of these 2 diseases.
Genetic analyses present that osteochondrosis occurring inwards the hock too Birkeland fractures inwards the fetlock are caused past times complex, hereditary diseases, which must hold upwardly taken into work organisation human relationship inwards breeding.
Lykkjen’s query demonstrates that osteochondrosis of the hock too Birkeland fractures are hereditary diseases too a positive genetic correlation indicates that these disorders may percentage the same genes.
Calculations present that the occurrence of these diseases is as high inwards American too French trotters.
The query projection also includes analyses of the horse’s whole genome for the operate of uncovering deoxyribonucleic acid variations that may hold upwardly linked amongst the occurrence of osteochondrosis too Birkeland fractures.
Lykkjen constitute areas of deoxyribonucleic acid associated amongst these 2 diseases inwards several chromosomes, which proves that these are complicated ailments influenced past times many genes.
Taken as a whole, the results of the query confirm that osteochondrosis of the hock too Birkeland fractures of the fetlock inwards standardbred trotters are worthy of farther research.
Breeders should accept work organisation human relationship of these diseases inwards their decision-making, she said.
Lykkjen’s thesis is entitled “Genetic studies of developmental orthopaedic articulation diseases inwards the measure bred trotter”.
Her doctoral query was carried out as a collaborative projection betwixt the Horse Clinic too Department of Disease Genetics at The Norwegian School of Veterinary Science, the University of Ås too the University of Minnesota.
Lykkjen attained her veterinarian score at The Norwegian School of Veterinary Science inwards 1996.
She worked for 3 years at a mortal veterinarian hospital before beingness employed past times the schoolhouse inwards 1999. There, she completed an internship at the Horse Clinic too qualified inwards 2007 as a Norwegian specialist inwards equine diseases.
She began her doctoral query inwards 2008.
Lykkjen currently holds a ship service as a academy lecturer at the Horse Clinic.
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