Aquafeeds

At shrimp hatcheries, artemia replacement diets are used to replace live artemia, but complete replacement in commercial conditions remains a challenge. 

Extruded pellets with high water stability can be produced without artificial binders by controlling the specific mechanical energy, or SME controls. 

New standards tighten the regulatory requirements for U.S. aquaculture producers regarding solid and dissolved pollutant loading in effluents. 

Shrimp are farmed globally in a wide range of production systems and fed under diverse feeding strategies throughout their life cycles. 

Scale of operation and production rates dictate freshwater prawn feed management. Although labor-intensive, monitoring consumption with feed trays increases efficiency. 

During the aquafeed manufacturing process, preconditioning increases the moisture content and temperature of feed meal particles. 

The Commonwealth Scientific and Industrial Research Organisation has researched pelleted dry feeds are palatable to juvenile tropical spiny lobsters. 

The value of chemical stimulants to shrimp farming will come via reproducible methods to evaluate the efficacy of chemoattractants and feeding stimulants. 

Managing aquafeed quality from production of feed ingredients through manufacture, grow-out and processing is key in consistent, high-quality production.  

In the aquaculture industry, extruders have been used to produce a great variety of products, but today most of these feeds fall into the sinking or floating categories. 

Methionine hydroxy analog (MHA) supplementation and the addition of other amino acids in soybean-based trout diets can improve their nutritional values. 

Unlike artemia, which is largely a commodity item, rotifers need to be raised at farm sites and nutritionally tailored to the requirements of the species being cultured. 

The process for making extruded shrimp feeds has flexibility to produce diets with a wide range of fat levels, densities, shapes and sizes. 

Depending on the extrusion processing conditions and ingredients used, different products such as floating or sinking feed can be produced.  

Experiment evaluates effects of feed color on the growth and survival of Nile tilapia fingerlings reared in a recirculating system.