Peer-reviewed veterinary case report
Lethal muscle contracture in Fjord Horse foals
By Nes, N et al.·Published in Nordisk veterinaermedicin·1982·View original on PubMed →
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Original publication title: Hereditary lethal arthrogryposis ("muscle contracture") in horses.
- Species:
- horse
Plain-English summary
This study looked at four female foals from the Norwegian Fjord Horse breed that were born with a serious condition called congenital arthrogryposis, which means their limbs were contracted and not able to move properly. This problem mainly affected their back legs and was also linked to having extra toes, a short upper jaw, and a cleft palate. These foals were half-sisters to four normal foals from the same father, a stallion named Bingo 1804, who appeared healthy. The condition is deadly and may be caused by a gene that affects one sex more than the other.
Abstract
In 4 female foals of the Norwegian horse breed, "Fjord Horse", congenital arthrogryposis of the limbs are described. The disorder was mainly limited to the hind limbs and associated with polydactylia and partly with brachygnathia superior and cleft palate. The defective foals were paternal halfsisters of 4 normal foals (1 female + 3 males), sired by the stallion "Bingo" 1804, which was phenotypically quite normal. The disorder being lethal, is possibly caused by a sex-limited or a strongly sex-influenced dominant gene.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/7162957/