The other 1% of Ca is distributed in cellular fluids, where they are involved in different metabolic and physiologic activities such as blood coagulation, nerve impulse and cell permeability maintenance, activation of certain enzymes, muscle contraction, or serving as activators of ion channels. Approximately 99% of the Ca and 80% of the P in the animal body occur in bones and teeth as a compound called hydroxyapatite. Calcium and Phosphorus Functionsīoth calcium (Ca) and phosphorus (P) function as structural components in the animal body. Minerals are classified into macro and micro minerals based on their presence and need in the animal diet. The functions and deficiencies of macrominerals and electrolytes (Na, K, Cl) discussed in this section are shown in table 15.1. Macrominerals include calcium, phosphorus, magnesium, sulfur, and electrolytes (sodium, potassium, chloride). Macrominerals are those minerals that occur in appreciable amounts in the animal body and are required in large quantities in the diet (> 0.01%). ![]() Minerals are classified into two groups-macro and micro (trace) minerals-based on the amounts needed in diet and not based on their importance for physiological functions. The current chapter will discuss only those definitely implicated in different animal nutrition problems in practical situations. Scientific literature lists 21 essential minerals. ![]() The functions include expression and regulation of genes and enzyme systems that regulate cellular function, activity and functionality of vitamins, osmotic balance, detoxification, immunity, cell membrane function, acid-base balance and regulation, and structural support and growth (i.e., bone). Minerals are more integrally a part of all biological functions in the body than any other single class of nutrient. The mineral matter constitutes about 4% of the animal body’s weight, and their presence is essential for maintaining life and animal health. Minerals are inorganic elements that are essential for the animal body’s physiological functions and metabolic processes. To introduce and discuss different inorganic elements of importance in animal health, welfare, and nutrition.
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