Nutritional muscular dystrophy

Nutritional muscular dystrophy
Typical stance of affected lambs, with arched back

Nutritional muscular dystrophy (also called nutritional myopathy, White muscle disease) is a muscular disease of lambs and calves due to deficiency in selenium and / or Vitamin E.

The condition is observed in all breeds and sexes of lambs, from birth to 3 month of age. [1]

In dairy breeds, the age prevalence concerned calves from some days after birth until four months. [2] But, in rustic breeds or beef cattle, heifers and young steers, up to 12 months, can also be affected.

Its frequency increases with upgrading of sheep breed, especially in areas with selenium deficiency in soils.

Contents

Clinical symptoms

The most usual form involves skeletal muscles, especially in the back. The animal is weak when it stands up, and has an awkward gait. Animals tend not stay up for more than a few minutes. When in recumbency, the animals are normal, and have a good appetite.

Treatment

Affected lambs and calves generally recover after injection of veterinary preparations of Selenium and Vitamin E.

External links

References

  1. ^ Jensen, Rue & Brinton L. (1982) Diseases of Sheep Philadelphia, Lea & Febiger ISBN 0-8121-0836-1 p. 86-88.
  2. ^ Gustav Rosenberger, Krankheiten des Rindes, Verlag Paul Parey, Berlin, ISBN 3-489-61716-9. p. 912-913