July | August 2014
New trials confirm strong results with
probiotics
The International magazine for the aquaculture feed i...
Innovations for a better world.
Aquafeed – complete solutions
from a single source.
Turn to Bühler for one of the most com...
B
ioMar is at the moment introduc-
ing probiotics in still more diets
around the world.The background
is new strong resear...
July-August 2014 | INTERNATIONAL AQUAFEED | 21
FEATURE
Naturally ahead
MYC OFIX
Myco
toxin Ri
sk
M
a
n a g e M
ent
Mycofix...
Indications of a better
immune response
BioMar and the Canadian company
Lallemand, who produces Bactocell®, agreed
last ye...
www.evonik.com/feed-additives feed-additives@evonik.com
Your challenge is our passion.
The superior methione source for yo...
www.aquafeed.co.uk
LINKS
•	 See the full issue
•	 Visit the International Aquafeed website
•	 Contact the International Aq...
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New trials confirm strong results with probiotics

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BioMar is at the moment introducing probiotics in still more diets around the world. The background is new strong research results from both sides of the Atlantic Ocean.

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New trials confirm strong results with probiotics

  1. 1. July | August 2014 New trials confirm strong results with probiotics The International magazine for the aquaculture feed industry International Aquafeed is published six times a year by Perendale Publishers Ltd of the United Kingdom. All data is published in good faith, based on information received, and while every care is taken to prevent inaccuracies, the publishers accept no liability for any errors or omissions or for the consequences of action taken on the basis of information published. ©Copyright 2014 Perendale Publishers Ltd.All rights reserved.No part of this publication may be reproduced in any form or by any means without prior permission of the copyright owner. Printed by Perendale Publishers Ltd. ISSN: 1464-0058 INCORPORATING FISH FARMING TECHNOLOGY
  2. 2. Innovations for a better world. Aquafeed – complete solutions from a single source. Turn to Bühler for one of the most comprehensive lines of aquafeed process technology available anywhere: from raw material handling, cooking and shaping through extrusion to drying and coating of finished products. With an extensive know-how and a passion for quality we ensure not only product uniformity and production efficiency, but also maximum sanitation and safety. Bühler – gentle processing at its best. www.buhlergroup.com/aquafeed
  3. 3. B ioMar is at the moment introduc- ing probiotics in still more diets around the world.The background is new strong research results from both sides of the Atlantic Ocean. In new trial results from Chile the company can achieve a 40 percent reduc- tion of the occurrence of deformities in fry as well as improved growth and gut health for trout fed with its probiotic strain Pediococcus acidilactici CNCM MA 18/5M (Bactocell®). Simultaneously, results from trials done in the United Kingdom indicate a positive effect of probiotics on the immune response in mid- sized salmon. And in France trials with a new Larviva Pro diet suggest a new era in larval rearing methods can be close. Improved growth and less deformities in Chile “Our European colleagues in BioMar and partners in Lallemand SAS have presented a very strong documentation for the benefits of the addition of the unique probiotic strain Pediococcus acidilactici CNCM MA 18/5M (Bactocell®) to feeds for many different fish species. Therefore, here in Chile we are proceeding with the use of Bactocell® in our commercial diets,” says Andrés Millan, sales director of BioMar Chile, is pleased with the first trial results obtained in Chile, where probiotics were introduced in BioMar diets recently. The field trials done in Chile with rainbow trout fry both support the existing theory and bring new knowledge. The trials were conducted in collaboration between BioMar and Aquachile, a major producer of salmon, coho and trout at the facilities of Aquachile in Quetroleufu, Chile. Andrés Millan explains that the results first of all showed a reduction in the occurrence of deformities by 40 percent “Deformities are both associated with mortalities among the fry and lost income on the final product. The fish might survive with minor deformities, but the final fillet will be of a lower visual quality. “The trials also showed an improvement in growth performance with a larger share of the fry reaching the highest size category at the end of the trial after 140 days,” he added. Significant changes in the intestine While the reduction in deformities and the improved growth was expected in the Chilean trial, some new knowledge was obtained when researchers took a closer look at the gut histology. They discovered a significant improvement in the condition of the posterior part of the gut The distal part of the intestine of fish fed feed with added probiotics was significantly thicker than the same section from fish from the control group, says Andrés Millan. He explains that the thickening of the intestine was the result of an increased length of the microvilli in the intestine. “This is obviously a very interesting result, because longer microvilli means improved nutrient absorption and that again contributes to a better feed conversion and growth.” The histology also revealed that there were no signs of inflammation in the intestine of the fish fed with probiotics. Andrés Millan believes that this is linked to the improved micro-flora in the intestine of fish having received feed with probiotics. But he also acknowledges, that far more research has to be done regards to the benefits of probiotics in fish. Probiotics have for long been a “must” in all husbandry production, and several probiotics have also been marketed for fish in Latin America and Asia, but according to Andrés Millan, this has far too often been done with very limited and partial documen- tation. “The effect of probiotics is temperature dependent, so an indiscriminate transfer of probiotics which do work at 37 deg C in land animals to fish living at 8-14 deg C does not make sense – you must carefully select and document the specific strains which work in fish at low temperatures.” NEW TRIALS CONFIRM STRONG RESULTS WITH PROBIOTICS Above: The square cages of the BioMar’s marine trial facility where the large probiotics trials on salmonids are carried out are neighbouring the circular net pens of the commercial Musholm fish farm. by BioMar 18 | INTERNATIONAL AQUAFEED | July-August 2014 FEATURE
  4. 4. July-August 2014 | INTERNATIONAL AQUAFEED | 21 FEATURE Naturally ahead MYC OFIX Myco toxin Ri sk M a n a g e M ent Mycofix® More protective. Mycotoxins decrease performance and interfere with the health status of your animals. Mycofix® is the solution for mycotoxin risk management. mycofix.biomin.net
  5. 5. Indications of a better immune response BioMar and the Canadian company Lallemand, who produces Bactocell®, agreed last year on a longterm research collaboration related to among other projects the benefits of probiotics. Some of the first research results from this partnership, which in this case also includes both the University of Plymouth in the United Kingdom and the University of Santiago de Chile, indicate a significant and consistent up-regulation of genes involved in regulating the immune system in salmon between 250g and 500g fed feed with Bactocell. This summer BioMar is carrying out a full season trial at the Musholm marine trial facility in Denmark, which will most likely be the largest single trial done with probiotics in salmonids. Jørgen Holm, research and development manager in BioMar Continental Europe, expects that the trial will add important knowledge to the growing documentation on the effects of this specific probiotic strain. “We are looking for both specific changes in the gut and more general health effects. “Depending on the disease pressure in the trial farm, we hope to see a significant difference, when we look at almost a full growth season in the sea.” He bases his expectation on the recent research results from the UK and earlier results from Norway on for example IPN, combined with the fact that Danish sea farms are often hit by disease in the late summer, when tempera- tures peak. But Jørgen Holm also underlines that large scale trials under commercial farm conditions by nature are difficult to carry out. “In Denmark we can risk a cold summer with reduced disease pressure, and then there might not be any visible differences.” However, this large scale trial also includes the utilization of diets with very different raw material compositions, and Jørgen Holm believes this can also result in interesting news. “In Chile we saw significant positive changes in the gut structure, and we have plenty of documentation on an improved micro-flora in the intestine, when Bactocell® is added to the feed. “In the Danish trial we will also study the ability of the lactic acid probiotic bacteria to ease the digestion process, and we will look deep into eventual long term changes in the gut health and morphology with and without Bactocell and with different raw material combinations. A new revolution in France In France, where BioMar recently opened a new production facility for the Larviva hatchery feed range, one of the major hatcheries for Mediterranean fish species has had tremendous success with the Larviva ProStart range, which is the first hatchery feed to include Bactocell®. Michel Autin, technical manager at BioMar West Med, tells that by using the Larviva ProStart the French hatchery has managed to get the rate of deformities below one percent and at the same time it managed to improve both growth and survival. “For people who are acquainted with the hatchery production for sea bass and sea bream this is a revolution. Ordinary feed products and protocols result in deformity rates of typi- cally 15 - 30 percent, and millions of Euro are spent on hand sorting the total fry production not once but often twice, to get rid of the deform fry. With the new French results the hatchery believes hand sorting is no longer needed and can take a significant cost saving. Bactocell® was approved in 2009 by the European Food Safety Authority, EFSA. It is still today the only probiotic bacteria strain which is approved for use in fish feed in the European Union, based on a documented effect in reducing deformities and improving survival. BioMar has an exclusive agreement with Lallemand SAS for the use of Bactocell® in fish feed worldwide.. Technical Manager Michel Autin and Production & Logistics Manager Cécile Soulé in in the new LARVIVA production facility at the BioMar factory in France, examining the quality of semi finished LARVIVA Pro products July-August 2014 | INTERNATIONAL AQUAFEED | 19 FEATURE New EVOLUM Twin screw extruder New PRECONDITIONER Higher Throughput Smart Machine ATC Control Hygienic Design Increased Residence Time Hygienic Design Improved Cleaning Procedure www.clextral.com High Quality AQUATIC FEED www.summit2014.org REGISTER TODAY! 20% Early Bird Discount Ends 31 July For registration and more information, go to www.summit2014.org/registration underpinned by thematic on concessions, production d improved health conditions s action plans aimed at the eases, vaccinations, the use of tions on roe imports. on coordinated joint projects in the industry to establish ures to promote self-regula- ic-private partnership. These ng existing legislation, in par- eneral Law on Fisheries and d adopting new regulations. hrough the effort and dedica- ed, recovery is now evident ry. est producer aquaculture industry is cur- nd largest export sector in Norway, Chile is the second of salmon globally. It has gen- an 60,000 direct and indirect es in over 70 markets. e been forged in developing and other Latin American ere is also a push into China mand as of now is strong so me depth to the marketability FAO on human resources, quate availability of research- ers, professionals, technicians and specialised labour force to respond to the increasing demand by industry and public and private research programs. Universities and higher education institu- tions are actively training human resources oriented towards the satisfaction of the industry’s requirements in production (marine biologists, veterinarians, fishing engineers, aquaculture engineers), processing (industrial and food engineers) and marketing (commer- cial engineers). There is also a growing specialisation in service areas such as environmental impact assessment, disease diagnosis and treatment, biotechnology, market studies and foreign trade, among others. The Government has a ProChile group which is very helpful in the trade arena. Annual plan of action Perhaps the most important milestone of the last few years has been the official publishing of the National Aquacultural Policy, which established objectives, principles and strategies associated to the activity’s sustain- able development. This important instrument of public-private participation also established annual plans of action (for the years 2004 and 2005), which have been achieved satisfactorily based on the FAO report. NTERNATIONAL AQUAFEED | 35 EXPERT T●PIC
  6. 6. www.evonik.com/feed-additives feed-additives@evonik.com Your challenge is our passion. The superior methione source for your aquafeed. Find out more by scanning this code with the QR-reader of your mobile-camera. DL-Methionine for Aquaculture™
  7. 7. www.aquafeed.co.uk LINKS • See the full issue • Visit the International Aquafeed website • Contact the International Aquafeed Team • Subscribe to International Aquafeed Tilapia farming in China Ukrainian Fish Farming: – Opportunities for growth Volume 17 Issue 4 2014 - JulY | AuGusT INCORPORATING FISH FARMING TECHNOLOGY El Niño – plan ahead and manage the risk Fish Farming Technology supplement - Stock protection - Biomass control - Technology round up Microalgae: – A sea of opportunities for the aquaculture industry This digital re-print is part of the July | August 2014 edition of International Aquafeed magazine. Content from the magazine is available to view free-of-charge, both as a full online magazine on our website, and as an archive of individual features on the docstoc website. Please click here to view our other publications on www.docstoc.com. To purchase a paper copy of the magazine, or to subscribe to the paper edition please contact our Circulation and Subscriptions Manager on the link above. INFORMATION FOR ADVERTISERS - CLICK HERE

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