The requirement of all vitamins varies not only with the different periods of growth and physiological functions (Pregnancy & Lactation) but also with nutrition. The vitamins are quickly and completely resorbed and rapid therapeutic effect is attained in vitamin deficiencies.

Vitamins:
Vitamin A: Enters into the oxidation & reduction reactions, in special the metabolism of carbohydrate & lipids, as well as it also stimulates the Epithelia.
Vitamin D3: Plays a role in Calcium & phosphor metabolism and their precipitation in the bones, helps both calcium & phosphor absorption in the intestine, and stimulates parathyroid Hormone.
Vitamin E: Regulates oxidation-reduction reactions & protein metabolism, it stimulates the urogenital tract.
Vitamin B1: Is used in the synthesis of carboxylate yeast that is essential in amino acids metabolism It has an important role in transport neural impulse, by inhibition of cholinesterase function.
Vitamin B2: Is manufactured in the body by the intestinal flora. It turns into phosphoric acids which play a role in oxidation-reduction processes.
Nicotinamide (PP): Is essential in many enzymes’ synthesis and carbohydrate metabolism.
Vitamin B5: Is important in the synthesis of acetylcholine and promotes nutritional substances metabolism.
Vitamin B6: Accesses in the synthesis of many metabolic yeasts & amino acids.
Vitamin H: It’s also known as Biotin. And animal body needs biotin to help convert certain nutrients into energy.
Vitamin B9 (Folic Acid): Is necessary to enzymes of amino acid formation, as well as is helpful in erythrocytes maturation.
Vitamin B12: Is an erythrocyte maturation factor and it promotes metabolism.
Vitamin K3: It helps in changing prothrombin into thrombin, so it prevents haemorrhagia.
Vitamin C: Plays a basic role in antibody synthesis, and it is essential in hemopoiesis.

Choline: Is referred to as a “lipotropic” factor due to its function of acting on fat metabolism by hastening removal or decreasing deposition of fat in liver. Choline plays an essential role in fat metabolism in the liver. It prevents abnormal accumulation of fat (fatty livers) by promoting its transport as lipoprotein and lecithin or by increasing the utilization of fatty acids in the liver.
Trace Elements: Mineral elements are very useful in building body tissues, metabolism, and various stages of growth. They are important in all stages of growth in animals.
Aminoacids: Are important to animal growth, body tissue constructions, and protein synthesis.