ANSC 330 Lecture Notes - Lecture 16: Sea Salt, Digestion, Abomasum
Document Summary
Collectively referred to as ash in proximate analysis. Important component of body tissues: make up 3-5% of the dry matter of animals, calcium (ca) , phosphorus (p) , other minerals . Play important roles in a number of metabolic processes. Requirements and sensitivities differ for different animal species. Minerals are typically classified based upon the relative level at which they are required by the animal. Macrominerals: required at a relatively high level, most often measured as a % of the dietary dm. Microminerals: required at relatively low levels, commonly referred to as trace minerals, most often measured in mg/kg or parts per million of dm, 1mg/kg = 1ppm = . 0001% Found in the body and thus required in the diet at relatively high levels. Measured as a : calcium, phosphorus, sodium, chlorine, magnesium, potassium, sulfur. Found in the body and thus required in the diet at relatively low levels. Measure in ppm or mg/kg: boron, chromium, cobalt, copper, fluorine.
