New Method to Allow Sampling from Live Salmon
09 February 2015
NORWAY – EWOS Innovation is developing a new method which makes the sampling of pigment and fat on live Atlantic salmon possible within seconds, whilst keeping the fish alive.
“Today, conventional fish sampling methods means scarifying the fish to obtain quality samples, which are then grinded and analyzed. This is both costly and labor-intensive. With merely low pressure, our new method makes it possible to scan the fat level and color content in only a few second. In addition, we can send a happy, alive and kicking salmon right back into the cage after measuring,” said Product Manager Ernst Hevrøy.
Fat percentage and pigment
The main objective is to develop a method for measuring body fat percentage and pigment content in the fillet of Atlantic salmon while it is alive, using an ultra-compact near-infrared spectrophotometer, namely the MicroNIR.
An additional objective is to use the method for evaluation of the fat distribution, and to assess the general energy status of the fish.
Benefit for fish and process
MicroNIR will provide major benefits during fieldwork, both for the fish and the process. In production follow-up, quality sampling of the fish is a frequent task. MicroNIR makes this work considerably more efficient, since this method only require a few seconds to scan the fish fat level and color content.
Moreover, the fish stays alive and healthy, and can go right back into the fish pen after measurement.
The MicroNIR project owner is EWOS Norway. Researchers at EWOS Innovation develop the technical solutions, which are tested on fish samples together with the salmon breeding company Aqua Gen AS.
TheFishSite News Desk
– See more at: http://www.thefishsite.com/fishnews/25084/new-method-to-allow-sampling-from-live-salmon#sthash.B7S857PI.dpuf
AUSTRALIA – Clean Seas is experiencing strong growth with its new season Kingfish. Development rates are the best the company has produced in recent years.
The 2013 season Kingfish fingerlings are approximately halfway through their lifecycle since being introduced in November last year and have recorded average fish weights of 1.6kg from leading pens more than double the average fish weight recorded by the 2012 season fingerlings at the same time last year.
Survival rates have also greatly improved this season with a 92.5 per cent survival rate for the 2013 Kingfish fingerlings compared to this time last year when the survival rate for the 2012 fingerlings was only 47.2 per cent.
Clean Seas CEO, Dr Craig Foster, said the company is buoyed by the results.
“Our new season Kingfish fingerlings are in extremely good health and are recording higher body weights than previous years which is really pleasing,” he said.
“Survival rates have also been consistently strong over their lifecycle, and in fact are the strongest we have produced in recent years.”
As a result of the impressive performance of the new season Kingfish fingerlings, Clean Seas has confirmed it will take the next step in its growth strategy to lift annual Kingfish production from 500 tonnes to between 1,100 and 1,500 tonnes by 2015.
“Our short-term goal is to boost Kingfish annual production from 500 tonnes to 1,500 tonnes by 2015, while our five-year production target remains 3,000 tonnes per annum,” said Dr Foster, adding
that demand for Clean Seas Kingfish remains strong with farmgate prices above $14 per kilogram.
The interim results for Clean Seas 2013 Kingfish fingerlings follow the companys announcement in May that a recent renounceable entitlement issue had closed fully subscribed raising a total of A$3,607,907 (excluding fees and commissions) to further invest in building Kingfish production.
“Our key performance measures are ahead of target and the overall performance is consistent with our strategy to re-focus and re-build a profitable business based on sustainable Kingfish production,” Dr Foster said.
TheFishSite News Desk
– See more at: http://www.thefishsite.com/fishnews/20778/strong-kingfish-growth-for-cleans-seas-tuna#sthash.Zzh1VaWJ.dpuf
THE Australian dollar is lower after heavy falls on the US stock market on Friday night. This comes after a fortnight of below parity trading, putting pressure on imported goods, such as fish feed and the raw materials used to manufacture stock feeds in Australia.
Big Nutrition has refrained from increasing prices over the past 8 months due to the increase in fish meal prices from Chile and Peru; hoping the demand from China would stabilise, but the added cost of the weakened dollar has forced us to lift our prices in order to continue to survive as an importer and supplier of Aquaculture feed and equipment.
As the Northern hemisphere move into Summer, demand on all protein sources from China will no doubt increase putting further pressure on fishmeal prices. On the other hand, Taiwan’s Aquaculture industry is struggling in the face of wide spread disease issues predominately within their prawn farming sector. Due to this fact the demand on all proteins in Taiwan are significantly lower than normal. Because of this we have decided to return to our Lucky Star mill in Taiwan and source all fish feed from there for the foreseeable future. This will reduce the need to further increase prices and hopefully allows us to decrease our prices before Australia’s summer hits. All Lucky Star extruded prawn feed will continue to be sourced from our China mill.
CLEAN Seas’ kingfish have been growing well this season since new fingerlings were introduced in November.
After five months of the 15 to 18-month grow-out phase, this season’s kingfish weigh more than a kilogram.
Chief executive officer Craig Foster said the current growth of the fish was among the best the company had seen.
“The fish performance is amongst the best we have ever achieved,” he said.
“We are excited with the quality of the yellowtail fish, including their health and general appearance.”
Mr Foster said the fingerlings would be transferred to sea cages for their final grow-out in October.
He said the fish were expected to return Clean Seas to acceptable production tonnages.
“Ongoing hatchery research and development has resolved a long term yellowtail fingerling production issue, which will dramatically improve the cost of production of fingerlings through consistently higher survival rates,” he said.
“We are well advanced in re-organising the yellowtail kingfish hatchery to implement the new findings.
“We look forward to continued strong performance under the yellowtail breeding and grow-out program to deliver increased production tonnages in line with the company’s production targets.”
Port lincoln Times 24/04/2013
NZ King Salmon deemed sustainable
Last updated 09:49 26/03/2013
The company said the certification covers all NZ King Salmon’s operations – five fish farms and three production units in Marlborough and Nelson. It said the company’s new Marlborough Sounds farms would be audited as they came on stream.
King Salmon chief executive Grant Rosewarne said attaining an internationally accepted aquaculture sustainability certification confirmed King Salmon’s world-class environmental standards.
Certification examines farm compliance issues such as community property rights and relations, worker relations, the environment, fish management and welfare, wildlife interactions and supply storage and disposal.
On the production side, it addresses management practices such as quality and staff, environment and food safety and verification and traceability.
Mr Rosewarne says the certification confirmed the company was doing what it said it had been doing.
“Given the high standards we set ourselves, compliance was achievable without a great deal of change to our current processes and procedures,” he said. “Corrective actions following audit were limited and indicative of a sound operation with only minor tweaks required.
“We’re very pleased with this certification. We can carry the certification mark on our packaging and that gives consumers comfort knowing we are managing our activities in an environmentally sensitive and acceptable way.”
The company had done considerable preliminary work on researching which was the best global standard, Mr Rosewarne said.
“We came to the conclusion the certification was one of the best suited to the New Zealand situation, which differs from most other territories in terms of isolation from disease and the king salmon species we farm.”
The company’s operations were audited by an experienced Australian-based certifier who was contracted to the Global Aquaculture Alliance, and audits would be carried out annually, Mr Rosewarne said.
“This is obviously important in all markets but especially so offshore – the United States is an example – where some customers will take product from a certified producer in preference to others.”
Traceability was a very big part of the certification, he said.
“It interconnects links in the aquaculture seafood production chain, assuring purchasers that all steps in the process were taken in compliance with environmental, social and food safety standards.”
Over the past few months world wide fish meal prices have reached record highs in response to early closures of the Peruvian and Chilean quota season.
This has seen fish feed prices also increase in response to the lower catches as well as fish oil prices also trending upwards world wide.
Because all of our supply comes from these two countries, we have had to increase our fish feed prices accordingly. The only saving grace at this point is our strong dollar against the greenback which has some what cushioned the prices from exceeding viability.
Paradoxically there has been a drop in Australian chicken meal and chicken oil prices due to an export ban on Australian chicken meal due to an avian influenza outbreak in some Australian states. This has caused a glut in the market place as meal producers are trying to off load hundreds of tons of chicken feather and poultry offal meal on the Australian market normally destined for the Asian market.
We are endeavouring to reduce the reliance of fish meal in our diets but are reluctant to move too quickly to replace essential nutrients and amino acids that are readily available in fish meal. Some species are not as compatible to fish meal replacement than others and we see a risk in doing so without further comprehensive studies on individual species.
We will keep the market updated on any major fish meal price fluctuations.
The Big news today is that as of early January 2013, Big Nutrition will supply Clean Seas Tuna with its yellow tail king fish feed.
The company which is the largest and most succesfull king fish farm in Australia, up until recently had been struggling to identify the cause
of a mystery illness which had devastated much of their king fish stock. As reported in various publications including The Australian, Adelaide Now and Channel 9’s morning program segment “a minute on your money”, the company believes that a deficiency in the essential amino acid Taurine in the feed is responsible for the poor growth and survival of its fish stocks.
According to Clean Seas Tuna, since adding taurine to the diet, the company has seen significant growth and health improvement across the farm and has now engaged Big Nutrition to supply Clean Seas Tuna with its grow out diets. Our formulation, which was developed in conjunction with a number of successful Japanese King fish farms is manufactured using the highest Land Animal Protein Free ingredients with the addition of synthetic taurine as standard.
This morning, Clean Seas Tuna’s latest ASX announcement confirms the securing of an alternate feed supplier from its former two Australian feed suppliers pending ongoing negotiations for the alledged damages suffered due to the feed deficiency.
We look forward to supplying Clean Seas Tuna with the highest quality King Fish diet available in the Southern Hemisphere.
IT WAS the feed all along, it seems. Pioneering aquaculture company Clean Seas Tuna has sought compensation worth tens of millions of dollars from two suppliers for the loss of kingfish devastated by the deficiency of an amino acid, taurine, in their feed.
Chief executive Craig Foster said Clean Seas had issued formal dispute notices to its two major feed suppliers after getting independent legal advice and assessment of kingfish feed protocols in Japan.
”The board has determined to invoke formal dispute resolution procedures with both feed suppliers to attempt to find a commercial compromise of the claims the company considers it has against both suppliers,” Mr Foster said.
Clean Seas would not identify those companies it had notified, but industry sources said listed Ridley Corporation and Tasmania’s Skretting were the two major feed suppliers in Australia. Neither Ridley nor Skretting returned calls yesterday.
Mr Foster said it had taken months to determine the cause of the kingfish deaths that struck Clean Seas this year, after two years of poor performance. By adding taurine to the feed, he said, ”simply, empirically, we can see we’ve reversed the whole health problem”.
Clean Seas shares have been in a prolonged slump and have fallen from a high of 8.3¢ in February to 2.4¢ at Wednesday’s close.
Mr Foster said the dead fish stock was worth only a few million dollars but there was also lost productivity from the fish that did not go on to grow.
He would not quantify the total damages claim but said it was ”tens of millions of dollars”. He said further independent testing would be needed. At this stage blaming the feed deficiency was ”only our opinion”.
Clean Seas also said it had achieved early spawning of its southern bluefin tuna brood stock and was confident of achieving viable fingerlings for the transfer to sea cages in December.
BBY analyst Dennis Hulme welcomed as ”very positive” both announcements, on the feed deficiency and tuna propagation. Clean Seas could now ”get back to being a money-making business … [and] potentially a takeover target,” he said.
The Age Newspaper 14/11/12
Read more: http://www.theage.com.au/business/aquaculture-pioneer-goes-fishing-for-compensation-20121114-29cmi.html#ixzz2CLLPQ4oK
Vegetable-rich diet takes blame for kingfish mortalities.
An outbreak of enteritis among juvenile yellowtail kingfish being reared in Australia by the Clean Seas Tuna company has devastated a substantial portion of stock the company was hoping to sell to support its ongoing hatchery-based tuna program. Dr Craig Foster, Clean Seas’ recently-appointed chief executive officer, said in iterview from the company’s Port Lincoln base, that the outbreak of enteritis among the hatchery’s young kingfish off spring began about two months after the juveniles were put out into sea cages.
The enteritis, which is similar to gastro-enteritis in humans, is causing weakening of the fish so that they don’t grow as well as they should. The sickness is thought to be tied to the increased vegetable content of the new diets the fish were weaned on to in order to cut back on the use of fish oil and fish meal. Those diets were supplied at company request by two different feed companies, said Foster, so it’s not tied to any one diet or supplier. Unfortunately, he said, the enteritis had also led to a secondary, coccidial (parasitic) infection and inflammation in the kingfish’s intestines, which had pushed the mortality rate up to the point that it was claiming as much as 3% of the juvenile fish in the pens each week. Foster said that rate had not continued every week and there had been some improvement through alteration to the fish’s diet. He acknowledged though that the combined outbreaks had wiped out some 35% or so – around 200,000 – of Clean Seas’ stock of 700,000 kingfish that it had put into ocean growout facilities earlier in the year as 5g fish. Foster said the enteritis became noticeable when, after two months in the ocean facilities, the juvenile fish had achieved only about half the growth rate that had been expected. “We were down to about 25% fish meal and substituted about 75% of the fish oil,”
Foster told this publication, “but we’ve taken a more conservative position with the fish meal and we’re not substituting fish oil at all at the moment. “We’ve removed all non-fish meal and brought up the fish meal to 40% now.” Foster said that obviously there’s still more that has yet to be learned about vital ingredients in yellow kingfish diets, that has already been learned with oil and meal substitutes for salmon. He said that lesson had already been learned with both juveniles and adult kingfish in Japan, which now produces some 150,000 tonnes of kingfish a year, mostly by growing out wild-caught juveniles. “I think we still have a lot to learn about how to manage the feed and husbandry of these small fish, especially in the first few months after introduction to the ocean,” said Foster.
Clean Seas has been putting them into the ocean at about 80 days after they hatch in the company’s on-land facilities. “They’re only small fish (when they go in) so in some ways it would be more ideal to put them in as larger fish,” he said. “We’re certainly looking at doing that next year.” He said it takes them 18 months or so to grow to 3.5kg market size, at the lower end of the preferred 3.5-4.5kg market range. And Foster also acknowledged that Clean Seas had also reduced its harvest to-market rate to reflect the impact of the problems with the two outbreaks in the juveniles’.
Reposted from Hatchery International July/August p 35
The Waitaki Riparian Enhancement Society based out of Glenavy on New Zealands South Island is out to help save the world.
The group is responsible for restocking the Waitaki River and surrounding streams with the King of salmon species, the Chinook Salmon. The volunteer group consisting of 200 members was formed in 2011 out of the need to restock the once abundant rivers and streams in the South Canterbury/North Otago coastal regions.
This year Big Nutrition and LuckyStar feeds donated $20,000 worth of Luckystar Intial and Hirame SM feed to help the group feed more than 60 000 fingerlings until they are ready to be released into the wild.
The history of wild salmon in this area dates back to 1901 when one Lake Falconer Ayson successfully hatched 1 million eggs at Hakataramea and Lake Ohau and released them into the Waitaki River. In 1905 the first 12lb hen was trapped in the River on its return, the following year a further 17 hens were trapped in the Hakataramea River. From then on the numbers steadily increased, and a healthy fishing industry was born.
A half century later rod caught salmon could be caught and sold commercially as well as commercial interests were allowed to net at the river mouth. This saw the taking of nearly 3,000 fish in 1956 which saw the gradual decline of salmon numbers over the next 20 years. By the 1970’s the situation was looking grim as land degradation, drought and the decimation of the Opihi river through water extraction saw the death of a once thriving river system.
Since then, volunteer groups such as the Waitaki Riperian Enhancement Society have spent countless hours working hard to repair the damage done before them. The group also runs fund raising programs to “keep the lights on” so to speak to ensure this once thriving species returns to the numbers that were seen nearly a half century ago.
Not only were we privileged to be part of history in supplying the societies feed, but we were also privileged to actually take part in the fertilisation of the eggs and witnessed first hand the salmon eggs being placed into the incubators at their make shift hatchery on waters edge on a donated plot just outside Glenavy.
The group have created a hatchery using good old fashioned New Zealand ingenuity and hard work, and taken the opportunity to re-establish a run down raceway system, which I believe was one of the original purpose built race way systems ever built in New Zealand.
We wish the Waitaki Riparian Enhancement Society all the best in their endeavour to provide the future generations of New Zealand a healthy and abundant Salmon Fishing industry. We will keep you updated on the groups progress over the next year or so.