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Related Experiment Videos

Hypercalcemia and hypervitaminosis D in two lambs.

J R Roberson1, W S Swecker, L L Hullender

  • 1Department of Large Animal Clinical Sciences, Virginia-Maryland Regional College of Veterinary Medicine, Virginia Polytechnic Institute and State University, Blacksburg 24061-0442, USA.

Journal of the American Veterinary Medical Association
|April 8, 2000
PubMed
Summary

Hypervitaminosis D caused weakness and failure to thrive in two lambs. Treatment involved saline solution and a new milk replacer, leading to a favorable response.

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Area of Science:

  • Veterinary Medicine
  • Animal Nutrition
  • Toxicology

Background:

  • Vitamin D is essential for calcium absorption and bone health in young animals.
  • Overexposure to vitamin D can lead to hypercalcemia, a serious condition.
  • Milk replacers and supplements are common sources of vitamins for young livestock.

Observation:

  • Two 17-day-old crossbred male lambs presented with weakness and failure to thrive.
  • Clinical signs suggested hypercalcemia as the primary issue.
  • The lambs' diet, including milk replacer and injectable vitamin D, was investigated as a potential cause.

Findings:

  • Hypervitaminosis D was diagnosed as the cause of hypercalcemia.
  • The exact source of vitamin D toxicity (milk replacer or injectable product) remained unconfirmed.

Related Experiment Videos

  • Lambs showed positive response to treatment with saline solution and a different milk replacer.

    • Implications:

    • This case highlights the importance of accurate vitamin D dosing in animal feed and supplements.
    • Proper management of milk replacers and vitamin D supplementation is crucial to prevent toxicity in young lambs.
    • Prompt diagnosis and supportive care, including fluid therapy and dietary changes, can effectively manage hypervitaminosis D in lambs.