Tetany ratios and dietary cation : anion balance (DCAB) are both used to describe electrolyte balance. Along with sodium, calcium (Ca) and magnesium (Mg), K acts to maintain nerve and muscle activity. K plays an important role in the transportation of oxygen and carbon dioxide through the blood. Along with sodium (Na) and chlorine (Cl), K is one of the three major electrolytes in the body and functions to maintain cation-anion balance (blood pH). It is found primarily in skin and muscle and is important for maintaining proper osmotic balance within cells. K is the third most abundant mineral in the body. This article will deal with beef cattle and K. Information on K and dairy cows can be found in previous Nutrition Update articles: Potassium in Dairy Cow Diets, May 2001 Preventing Udder Edemas, May 2002. This has created difficulties in balancing rations for cattle. They are often over 2% and in some cases, over 3%. Potassium (K) levels in some forages, e.g. Potassium and Tetany Ratios (Nutrition Update, Volume 15)
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