Fish meal
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Project at a Glance

Contents

• Fish meal, or fishmeal, is a commercial product made from both whole fish and
  the bones and offal from processed fish.
• It is a brown powder or cake obtained by rendering pressing the cooked whole fish or fish trimmings to remove most of the fish oil and water, and then ground.
• What remains is the "fishmeal".
• The species must be in large concentrations to give a high catching rate; this is essential because the value of industrial fish is less than that of fish for direct human consumption.
• The fishery should preferably be based on more than one species in order to reduce the effect of fluctuations in supply of any one species.
• The total abundance of long lived species varies less from year to year, and Species with a high fat content are more profitable, because the fat in fish is held at the expense of water and not at the expense of protein.
• The amino acid profile of fishmeal is what makes this feed ingredient so attractive as a protein supplement.
• High-quality fishmeal normally contains between 60% and 72% crude protein by weight.
• Typical diets for fish may contain from 32% to 45% total protein by weight.
• Another very important reason why fishmeal is sought after as an ingredient in aquaculture diets is because it contains certain compounds that make the feed more acceptable and agreeable to the taste .
• This property allows for the feed to be ingested rapidly, and will reduce nutrient leaching.
• It is thought the non-essential amino acid glutamic acid is one of the compounds that imparts to fishmeal its palatability.

Ordering Information

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