Welcome to International Aquafeed
- a leading information sources for the global Aquafeed industries

See our current on-line version of International Aquafeed:
January - February 2012

Features in this issue include:

• The effects of dissolved oxygen on fish growth in aquaculture
• On-farm feed management practices for three Indian major carp species - in Andhra Pradesh, India
• Bulk storage & handling
  
• Flaked fish feeds versus pelleted fish feed for the fish hobbist
  
• Redefining mineral requirements: Why it’s necessary?
• Oxygenation in aquaculture
• Developing a plant-based diet for Cobia Rachycentron canadum
• Use of soybean products in aquafeeds: a review 

International Aquafeed is now also available as a Spanish language version

Editors desk

Welcome to the start of 2012 and it’s going to be an eventful year indeed. We in Great Britain are hosting the Olympic Games and Her Majesty the Queen’s Diamond Jubilee will be much in the news. The USA will be electing their President and let's hope a better financial year is in store whatever the outcomes.

In February/March Aquaculture America 2012 will be held in Las Vegas with plenty of representation from the feed industry and a list of interesting speakers. I will be there so I’m hoping to meet many of our subscribers and IAF will have a stand so please make every effort to visit us if you can.

Later in August we see the ISNF Fish Nutrition & Feeding Symposium in Molde, Norway, with a heavy focus on the research and development contributions from the leading scientists across the globe in the many disciplines of aquatic animal nutrition.

Topics will include sustainable resources of ingredients, health, welfare and ethics, new methods and working-tools, feed technology and feeding regimes, nutrigenomics and molecular nutrition. ‘omics’ data and system biology models as well as nutritoxicology and whole life cycles nutritional requirements. May sees the annual Alltech symposium in Lexington, Kentucky with a special session on aquaculture nutrition.

In October, BioMarine Business Forum comes to London to be held at the prestigious Fishmongers’ Hall, which will turn our attention to emerging marine biotechnology and applications for the aquafeed industry with ‘think tank’ sessions to cover contemporary topics and especially the feed additive area. The last meeting in Nantes in September 2011 reported in the previous IAF was highly successful.

Aquaculture depends on quality feed, but the life support systems allowing maximisation and efficiency of production throughout the different life stages are critical too for metabolism of nutrients and to release energy from feed.

Oxygen is the key to life and certainly fundamental to the demands of fish and crustacean species but also to the aerobic micro-organisms inhabiting bio-filtration systems such as those encountered in recirculation technology.  The effects of dissolved oxygen on fish growth in aquaculture are of paramount importance and so I am pleased to see two articles in our first issue of 2012 concerning oxygenation in aquaculture and relevance to aquafeed.

We have features from several experts in their knowledge of oxygen requirements for fish with attention to fish physiology, environmental considerations and the relationship with feeding and diet composition. Pavlos Makridis, Nils Hovden Yovita John Mallya, Kingolwira National Fish Farming Centre, Fisheries Division, Ministry of Natural Resources and Tourism Tanzania present a valuable perspective of balancing oxygen demands of fish with metabolism.

Pavlos Makridis, Nils Hovden and Martin Gausen (Stovic) describe the technical basis of oxygen measurements in water from a chemical perspective and ion/ electrode interactions.

Aaron Watson and colleagues discuss current trials to use selected plant ingredients as protein sources for cobia. Aaron is undertaking his Doctoral research programme at the Institute of Marine and Environmental Technology, University of Maryland Center for Environmental Science and I am very grateful for his input, sharing his findings to a wider audience. Daniel Leeming is also a young PhD worker at Plymouth and reviews the role of zinc in fish nutrition as part of our trace element features.

Pablo Tepoot Founder of New Life Spectrum (fish food forum) and edited by Martin Little presents details of flaked food for ornamental fish and discusses the merits of controlled feeding regimes to safeguard tropical fish from problems associated with excessive feeding and nutrient digestibility.

Alf Croston Managing director of Croston Engineering Bulk Storage and Handling provides us with information on feed storage issues, translocation and the technology of bins and silos within the milling sector.

On farm feed management practices for three Indian major carp species rohu (Labeo rohita), catla (Catla catla) and mrigal (Cirrhinus mrigala) in Andhra Pradesh, India by R Ramakrishna adds to our regular Feed Management section, which has been expertly overseen by my colleague Krishen Rana for the last two years.

Together with our news and advertising pages and of course the regular Martin Little blog, we have an excellent line-up to initiate the New Year and offer informative reading, enjoy!

Enjoy our latest issue. 

To view the issue in full, please click here
 

International Aquafeed reflects a passion for aquafeed and excitement about new technology. Our objective is to be a respected provider of information about aquafeed in the widest sense.

Feed makes up around 70 percent of the cost of producing farmed fish. In each issue, we take an in-depth look at a wide range of technical issues associated with aquafeed production and use. We bring our readers global news about new technology and research, feed ingredients and micro-ingredients, market trends and all issues that impact on the aquafeed supply chain today and tomorrow.

We have a deep commitment to our readers and our advertisers. We believe in quality information and quality design, just as you believe in the quality of your products.

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