This chapter describes the use and nutritive value of fishery byproducts in fish feed and the effects of these feeds on fish quality.

The high cost of cholesterol used in aquaculture diets for shrimp makes it important to precisely define their requirement for this essential nutrient in order to avoid excess supplementation of the diet. Two experiments were carried out to determine the cholesterol requirement of subadult (about 3 ...

The rapid global growth in fish farming and limited supply of fish meal (FM) has consequently reduced FM inclusion levels in compound feeds leading to a higher reliance on alternative protein sources. Sasya is a single cell protein (SCP) product that has a similar amino acid profile as FM. The aim ...

The objective of this experiment was to evaluate soya protein concentrate (SPC, 65% protein) as a replacement ingredient for fish meal (FM, 65% protein) in shrimp diets. Shrimps (Penaeus monodon, PL-15) were raised in the laboratory to 1.5 g body weight and were then transferred into 120-litre...

Apparent digestibility coefficients (ADCs) of dry matter, crude protein, amino acids, and gross energy in various feed ingredients with or without protease supplementation (Jefo Nutrition Inc., Quebec, Canada) were determined for rainbow trout in a two-year study. The ingredients consisted of two...

Sustainable aquaculture depends in part on the use of sustainable inputs and on minimizing outputs that affect the aquatic environment. Challenges facing the aquaculture industry include the fact that fish meal and fish oil are finite resources that are bound to increase in cost as demand by the...

A 12-week feeding trial was conducted to compare low and high inclusions of conventional soybean meal (SBM) or enzyme-treated SBM (Enzo) as fishmeal replacements in the diets of rainbow trout, Oncorhynchus mykiss. Six isonitrogenous (43% crude protein) and isolipidic (19% crude lipid) diets were...

One 6-week feeding trial was conducted to determine the dietary protein requirement of juvenile giant croaker, Nibea japonica. Semipurified diets were formulated with white fish meal to contain graded levels of protein ranging from 30% to 55% of dry diet. Each diet was fed to triplicate groups of...

A 12-week feeding trial was conducted to compare the dietary lysine requirement of a fast-growing strain (FGS) and a slow-growing strain (SGS) of rainbow trout, Oncorhynchus mykiss. Five isonitrogenous (37% digestible protein) and isocaloric (17.6 MJ/kg of digestible energy) diets were formulated...

Alternative sources of fish oil (FO) are one of the major problems in aquaculture; therefore, the goal of the present study was to examine insect (black soldier fly larvae) oil (BSLO) as a potential replacer of fish/soy oil in juvenile rainbow trout (initial average weight of 32 ± 0.15 g) feed....