Wednesday, July 31, 2013

31/07/13: Worms in aquafeeds; UK jellyfish invasion; shellfish poisoning testing

Worms are not an ingredient you often see listed as a feed ingredient but that might be about the change. 

Scientists at Makerere University Agricultural Institute Kabonyolo (MUARIK), Uganda, have started rearing the earthworms for use in fish feeds. 

The demand for alternative feed ingredients comes from fish farmers who argue that existing commercial feeds are too expensive.

The worms enjoy a diet of maize bran, food remains, cow dung and water and are sold in one kilo tins.

It's not aquaculture but I really wanted to share this film and photos of jellyfish in the UK.

Since the spell of warm weather, UK waters have seen a boom in the amount of  these fascinating creatures.
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Neogen Europe Ltd has added to its comprehensive range of tests for the seafood industry with the introduction of rapid tests to detect the toxins that cause amnesic shellfish poisoning (ASP) and diarrhetic shellfish poisoning (DSP).

Neogen’s new Reveal® 2.0 for ASP detects ASP-causing toxins at a level of 20 parts per million (ppm), and Reveal 2.0 for DSP detects DSP-causing toxins at 160 parts per billion (ppb). Both are one-step rapid tests, and are compatible with U.S. Food and Drug Administration (FDA) and European Union Commission permitted levels.

Both new shellfish toxin tests offer easy extraction processes, meaning they are on-site field tests capable of being used on a boat, and are used with Neogen’s innovative AccuScan® Pro Reader that provides consistently accurate and reliable results.

“The combination of the new tests and test reader provide an unparalleled ease in achieving consistently accurate results when testing for these toxins,” says Steve Chambers, Neogen Europe. 

“The AccuScan Pro Reader completely eliminates the variance in interpreting test results that can exist when only using a visual appraisal, especially with inexperienced testers. It also provides a very easy method of storing and analysing test results - which is becoming increasingly required as many nations move to reduce the risk posed by these shellfish toxins.” 


an image showing a jellyfish in Adriatic Sea.
an image showing a jellyfish in Adriatic Sea. (Photo credit: Wikipedia)
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