Friday, May 17, 2013
The video this week comes from the WorldFish Center. After the devastating 2004 tsunami that killed hundreds of thousands of people in the Indian ocean, and over 135,000 alone in Indonesia, comes a story of hope and resilience as two shrimp farmers from Banda Aceh share with us their success from shrimp aquaculture farming. This short video was produced for the Aquaculture Clinic 2011 held in Utrecht, The Netherlands, and hosted by the WorldFish Center and A-Spark Good Ventures.
Simon Davies, International Aquafeed editor, puts pen to paper in this article on the the role of niacin in sustaining healthy growth and production.
In 1951 Dr John E Halver of the School of Fisheries Science, University of Washington, USA presented the ‘model semi-purified fish diet’ to the aquatic nutrition research community. This innovation allowed for the proliferation of deficiency studies with mainly salmonid fish such as rainbow trout and Pacific salmon to evaluate the significance of vitamins in complete diets for cultured fish.
With such an ‘ideal’ diet, vitamins could easily be assayed by using this vitamin test diet, consisting of ‘vitamin free’ carbohydrate and protein sources i.e. casein, purified gelatin, potato starch, hydrogenated cotton seed oil, alpha-cellulose flour, minerals, cod liver oil, combined with crystalline vitamins. Each vitamin could then be systematically assessed by selective exclusion from this advanced basal diet formulation. The water soluble vitamins such as the B-complex and especially vitamin C (ascorbate) were all found to be essential in fish as in other terrestrial animals of commercial importance and indeed having the same basic functions as in humans.
Read the full article.
|Niacin in sustaining healthy growth and production|
The department of fisheries and oceans (DFO), Canada has confirmed that salmon escapees from the Fortune River areas have been found in the Garnish River. The Salmonid Council of Newfoundland and Labrador has raised concerns that the fish could be a danger to wild Atlantic salmon population by spreading sea lice and inbreeding. However, the DFO has played down the issues, saying that tests on sample fish have not found any signs of sea lice or disease.
Ugandan women are being urged to embrace fish farming as a way to ensure a consistent food supply and improve living conditions.
The call came from United Nations Development Programme administrator, Helen Clark on a visit Uganda. The main source of fish in the country is Lake Victoria, however this resource is over fished and much of the fish is sold overseas. Fish farming could be a viable alternative to fishing.
Getting permission for new aquaculture developments is a long and often fraught process. However, plans for an aquaculture park at Powell River, Townsite, Vancouver, Canada, are progressing well thanks to a fortunate set of circumstances. The proposal has the backing of both the local and federal government, a suitable site with a good power supply and nearby university research facilities.
Approval for the site is by no means done and dusted so watch this space...
|English: Atlantic salmon smolts (Photo credit: Wikipedia)|
Thursday, May 16, 2013
The FAO has released its annual Globefish Commodity Update on fishmeal and fish oil. The
report contains commodity information on prices, imports, exports and production by commodity. The information is taken from the network of Globefish correspondents and the Globefish European Price Report, INFOFISH Trade News, FAO FISHDAB, EUROSTAT and others.
Fishmeal prices remained strong in the first part of 2013 as supply fell in the 2012. Total production fell by 35 percent between 2011 and 2012. The two main Latin American exporters, Peru and Chile, continued their dominance with Peru accounting for 82 percent of South American production. Elsewhere, Icelandic production rose significantly thanks to a rise in herring and mackerel catches.
The average price of fish oil in the last quarter was US$2138. This was 43 percent higher than the average price in the last quarter of 2011. The growing demand for fish oil for both aquaculture and human consumption and a weak supply in 2012 mean that these high prices look set to continue into 2013.
For single issues please email email@example.com. Or visit the Globefish website.
Other issues, released throughout the year, include bivalves, salmon, shrimp and tuna.
|FAO Globefish Commodity Update|