Lecture53 - Metabolic Disorders in Ruminants Grass Tetany...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Metabolic Disorders in Ruminants Grass Tetany Grass tetany in ruminants is associated with an imbalance in the mineral components of blood serum, especially reduced magnesium (Mg) levels. Grass tetany is sometimes called grass staggers or hypomagnesemia. Grass tetany is usually confined to lactating cows in the first few weeks after calving. Grass tetany is also more likely in older cows due to reduced absorption of magnesium with increasing age and reduced ability to mobilize magnesium from the bones. However, grass tetany may also occur in dry cows and in growing calves. Grass tetany is also more likely in fat cows due to reduced quantity of magnesium in their body fluids.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Grass Tetany Grass tetany is most severe when cattle are grazing young, high quality forage such as annual grasses, especially those that have been fertilized heavily with nitrogen and where the forage contains large amounts of potassium (K), and particularly the first flush of growth. Once the forage becomes more mature, the likelihood of problems is reduced. High nitrogen content of the forage (usually through fertilization) or high potassium (K) content of the forage (either through fertilization or uptake from high K soils) reduces magnesium availability from the forage and leads to reduced magnesium in the blood. There is only a small reserve of magnesium in the body and in
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 8

Lecture53 - Metabolic Disorders in Ruminants Grass Tetany...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online