7-Dehydrocholesterol (also known as a precursor to cholecalciferol and a product of cholesterol 7-dehydrogenase) is a cholesterol derivative naturally found in the skin of vertebrates. Under ultraviolet (UVB) light, it can be converted into endogenous vitamin D3 through photochemical reactions.
As a core raw material for industrial synthesis, it typically appears as a white or off-white crystalline powder that is sensitive to light and air. It serves as a crucial link between basic biochemical raw materials and high-end bioactive vitamins.
Feed-Grade Cholesterol Is a Purified Lipid Derivative Primarily Utilized As a Vital Nutritional Additive In The Aquaculture And Livestock Industries. While Cholesterol Is Often Viewed Through a Narrow Lens In Human Health, It Is An Essential Structural Component And Metabolic Precursor For Many Aquatic Species, Particularly Crustaceans Like Shrimp And Prawns.
Unlike Mammals, Most Crustaceans Lack The Physiological Ability To Synthesize Cholesterol De Novo (From Scratch). Consequently, They Must Obtain It Through Their Diet To Ensure Healthy Growth, Successful Molting, And Reproductive Stability.
In Animal Nutrition, Feed-Grade Cholesterol Serves Several Critical Roles:
Cell Membrane Integrity: It Acts As a Primary Component Of Cell Membranes, Regulating Fluidity And Permeability, Which Is Crucial For Nutrient Absorption.
Hormone Precursor: It Is The Base Building Block For Ecdysteroids (Molting Hormones) In Shrimp And Crabs, As Well As Bile Acids And Vitamin d.
Growth Performance: Inclusion Of Cholesterol In Feed Is Directly Linked To Higher Survival Rates And Faster Biomass Accumulation In Intensive Farming Environments.
Lipid Metabolism: It Aids In The Emulsification And Transport Of Fatty Acids Within The Animal’s Digestive System.
