Fishmeals (FM) are the most superior protein sources in aquafeed. World‐wide growing demand and limited supply of FM limit its use as sole protein sources in aquafeed and force fish nutritionists to develop alternate protein‐based aquafeeds. However, increasing alternate proteins over a certain percentage reduces fish performance. Many attempts have been made (viz., manipulation of processing technology of feed ingredients and...

Insect lipid/oil is a by‐product of insect meal production. The quantity and nutritional quality of insect lipid varies with species, life stages, the kind of substrate used to raise the insects, as well as the extraction process. Insect lipid products have been successfully used in animal feeds as source of nutrients, notably energy and indispensable fatty acids. Further some insect lipid products are potential functional ing...

Bile is a yellow‐green liquid produced in the liver from cholesterol and stored in the gallbladder of vertebrates. Bile improves the efficacy of lipid digestion by acting as an emulsifier and is essential in activating bile salt lipase, an enzyme that has broad substrate specificity. Bile improves the absorption of lipid soluble nutrients while also facilitating the excretion of cholesterol and toxic metabolites, particularly...

A wide range of raw materials are now used routinely in aquaculture feeds throughout the world, primarily to supply protein and energy in the form of lipid from edible oils. Protein meals and oils used can generally be divided into those of plant or animal origin and many have considerable potential to supply the required dietary nutrients required by aquaculture species. However, the use of any raw material introduces a suite...