ABSTRACT
Organic nutrients constitute the largest proportion of poultry body, the highest being protein followed by lipids, minerals and vitamins. The properties and functions of proteins depend on the length of peptide chain, structural arrangements of the amino acids and incorporation of other nutrients or elements in the protein structure. The sources of blood or plasma lipids are: The plasma lipids are found in the following chemical forms: 5 Energy is the heat generated from the metabolism of organic nutrients-carbohydrates, lipids and proteins. The minerals requirement less than 0.1 per cent in the body are known as micro minerals or trace elements. Original name was vitamine as Funk assumed that some amino-nitrogen is producing the beneficial effects which could sustain later discoveries of many vitamins of diverse composition and name was changed to vitamin for representing the group of these organic micronutrients essential for normal physiological functions.
