The preparation of floating & sinking fish feeds by extrusion

Published on: 01/18/2017
Author/s : Enrique Diaz

Extrusion has been used to prepare animal feeds for many years and has proved to be an effective means to cook and shape raw ingredients into very specialized products, especially in the highly competitive pet food market where size, shape, mouth feel and degree of cook are important factors in the success of the product. During the past 25 years the commercial raising of fish for human food consu...

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January 18, 2017

Interesting. Because we design and build Fish Feed process plant in South Africa. Always something to learn from others.


March 12, 2017
Very interested subject
Alagbe olujimi John Alagbe olujimi John
Animal Production & Health
May 25, 2017
Very educative write up, extruding fish feed will minimize wastage and reduce water pollution.
April 16, 2018

Want to know how, locally, I can prepare my own feed and make it float.

May 6, 2020
Thats brilliant indeed
August 21, 2020

Are there any additives or chemicals required for making the fish feed to float?

March 28, 2021

What material really ensures at least two minutes floating in waters?

Enrique Diaz Enrique Diaz
Agro Engineer Zootechnist. Product Line Manager Vegetable Oil & Animal Feed Divisions
March 29, 2021
Adeniyi ;
To achieve sinking effect you have to consider several factors such as formulation, amount of steam and die insert configuration. If you are thinking only on the ingredient side of the equation then you wont be successful achieving what you are looking for, you have to balance and consider all these 3 factors.
October 29, 2021
Can sinking pellet kill fish in the earth pond?
December 12, 2021
Very educative write up,had problems with our extruder,its producing sinking feed instead of floating
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Dave Albin, Ph.D.
Dave Albin, Ph.D.
VP, Nutrition & Extrusion Technologies
  West Des Moines, Iowa, United States
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Dave Albin, Ph.D. Dave Albin, Ph.D.
West Des Moines, Iowa, United States
Giuseppe R. Bigliani Giuseppe R. Bigliani
Cumming, Georgia, United States
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