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Dietary hyperparathyroidism in a herd of Andalusian horses
Hyperparathyroidism is a rare phenomenon in equine practice. In this article, a complete herd showed signs of a secondary hyperparathyroidism due to a mineral imbalance in the diet (low calcium and high phosphorus intake). All age groups were affected - even a three week-old suckling foal showed severe problems.

The herd of Andalusian horses clinical history and the laboratory findings were compatible with a diagnosis of Mares showed a marked increase in serum parathyroid hormone (PTH) approximately 10 times normal levels.

Serum PTH was marginally elevated in foals.

Clinical signs (unthriftiness, painful joints, lameness in one or more limbs, and stiff gait) were more pronounced in foals than in mares.

Two foals died and necropsy of one of them revealed extensive soft-tissue mineralization of arterial walls and pulmonary parenchyma.

Clinical signs in mares and foals resolved by 4 weeks after diet adjustment.


Source: J. C. Estepa, E. Aguilera-Tejero, R. Zafra, R. Mayer-Valor, M. RodrÃguez and J. Perez (2006): An Unusual Case of Generalized Soft-Tissue Mineralization in a Suckling Foal. In: Vet Pathol 43:64-67 (2006)



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EQUINE

Theiler´s disease in a Trakehner caused by contaminated tetanus vaccinemembers
An 11â€yearâ€old Trakehner gelding was presented for evaluation of lethargy, decreased appetite, mild icterus, and elevated hepatic enzyme activities. Physical examination, serum chemistry results, and liver biopsy histopathologic findings were supportive of Theiler`s disease. Polymerase chain reaction (PCR) testing results of serum and liver tissue were positive for nonprimate (equine) hepacivirus (NPHV) and a novel equine parvovirusâ€hepatitis virus (EqPVâ€H). A serious and finally fatal problem, caused by contaminated vaccine.

  • Limbal squamous cell carcinoma in a Rocky Mountain Horse and geneticsmembers
  • Subconjunctival bupivacaine, lidocaine, and mepivacaine and the corneal sensitivity in horsesmembers
  • Clodronate in horses with lamenessmembers
  • Valacyclovir in horses with equine multinodular pulmonary fibrosismembers
  • Radiculopathy associated with forelimb lameness in horsesmembers
  • Biological variations of routine blood parameters in horsesmembers
  • Prognosis for horses with deep digital flexor tendon injury after penetrating woundmembers
  • Possible maternal effect for the pace trait of horsesmembers
  • Flecainide on induced atrial fibrillation in horsesmembers
  • Sonographic technique to identify manica flexoria tears in horsesmembers
  • Novel prototype dynamic laryngoplasty system on arytenoid abductionmembers
  • Lipid peroxidation biomarkers in equine neuroaxonal dystrophymembers


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