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Utlisation of Roasted Guar Korma as alternative for fishmeal and soybean meal in shrimp diets

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Roasted Guar Korma is a high protein raw material, obtained after extraction of Guar gum from the seeds of the leguminous plant Cyamopsis tetragonoloba. It is cleaned and roasted after the gum extraction to remove anti-nutritional factors present in korma, such as trypsin inhibitor, improving its nutritional values and total digestibility.
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  November | December 2014 Utilisation of Roasted Guar Korma as alternative for shmeal and soybean meal in shrimp diets 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  R oasted Guar Korma is a high protein raw material, obtained after extraction of Guar gum from the seeds of the leguminous plant Cyamopsis tetragonoloba. It is cleaned and roasted after the gum extraction to remove anti-nutritional factors present in korma, such as trypsin inhibitor, improving its nutri-tional values and total digestibility. The product is obtained without added chemicals or preservatives and is completely GMO free, which can be an important factor  to replace soybean meal.Roasted Guar Korma is thus a competitive alternative for soybean meal, but there is little information about its use in Aquafeeds. Experiment: 3 experimental diets were produced: one reference diet, a diet with 5 per cent Roasted Guar Korma and a diet wiht 10 per cent Roasted Guar Korma. Feeds are produced with a pellet mill on a 2 mm die, using preconditioning with steam (>90°C) and postconditioning (>90°C) during 20 minutes.Roasted Gur Korma replaced 50 per cent soybean meal and 50 per cent Chilean Fish meal to obtain the same protein levels in all feeds. Shrimp trial The shrimp trial was conducted at the CreveTec-AFT Research station in Venray. The trial started with shrimp (Litopenaeus vannamei, Shrimp Improvement Systems) of +2,5 g and lasted for 4 weeks.There are 4 replicates for each diet, so 12  tanks of 150 l in total. Each tank received 30 shrimp. All tanks are connected to a bigger  tank. This way, all tanks have the same water quality. Water quality in the big tanks is main- tained with bioflocs.Feed gift is adapted daily according to  the average weight of shrimp, biomass and expected growth. Each week, shrimp were counted and weighed together to have average weight and  total biomass. Results: Initially, growth of feeds with RG were showing better growth, but this did not continue during the whole 4 weeks. We can observe that the feed with 10 RG has a little less growth, and this difference is statistically different. Utilisation of Roasted Guar Korma as alternative for fishmeal and soybean meal in shrimp diets by Eric De Muylder 1 , Diana Pablos 2 , Milivoj Rubcic 2  and Leon Claessens 3 Table 1: Composition of Roasted Guar KormaCrude Protein55%Crude Fat7%Moisture6%Crude Fiber3% Ash content6% Amino acids (as % of crude Protein)Methionine1,105%Cysteine1,278%Lysine4,208%Threonine2,817% Arginine12,744%Isoleucine2,915%Leucine5,367% Valine3,357%Histidine2,450%Phenylalanine3,734%Table 2: Composition of test dietsREF RG5RG10Raw Material :Chilean fish meal 2522,520Squid liver powder444Hemoglobin powder222 Wheat flour34,834,834,8Soybean meal2017,515Rice bran555Soyalecithin1,21,21,2Fish oil0,90,90,9 Wheat Gluten555Premix222Roasted Guar Korma510Total100100100Crude Protein38,2638,2638,26Lipids7,087,087,08 10 | INTERNATIONAL AQUAFEED | November-December 2014 FEATURE  The FCR was statistically higher for the feed with 10 per cent RG, but differences are very small and all FCR observed are very good. Conclusions  We can safely conclude that 5 per cent Roasted Guar Korma can replace 2,5 per cent soybean meal and 2,5 per cent fish meal in feeds for Shrimp (Litopenaeus vannamei), which is an important result, because it will be an important cost saving for the shrimp feed producer. Also 10 per cent inclusion rate is possible, but then there might be a very low effect on growth and FCR. Roasted Guar Korma is also a valuable alternative for soybean meal in case the producer wants to guarantee GMO free production. About the authors: by Eric De Muylder  1 , Diana Pablos 2 , Milivoj Rubcic 2  and Leon Claessens 31 CreveTec, Heirbaan 56, 1740 Ternat, Belgium, eric@crevetec.be 2  Pacta Srl, Via Lametta, 146- 41010 Limidi di Soliera, Italy, info@pactasrl.com 3 AFT, Poststraat 8, 5801 BC Venray, Netherlands, info@aquaculture-ft.com THE BEST WAY TO PREDICT THE FUTURE IS TO CREATE IT.  —Peter F. Drucker  Turning ideas into opportunities.PROGRESSIVE AQUAFEED PROCESSING What will tomorrow bring wenger.com BELGIUM TAIWAN BRASIL CHINA TURKEY INDIA  Why retire a workhorse that’s still doing the job?  Simply put, your old dryer may be costing you a bundle. In fact, today’s Wenger dryer could save you enough in operating efficiency alone to cover the replacement of your old dryer. Additionally, our new advanced dryer designs  give you less potential for cross-contamination and bacteria build-up; feature new direct drive spreaders for level product bed and uniformity of final prod-uct moisture; and afford quicker, easier inspection and cleaning. Contact us now. With new concepts and fresh initiatives, we’re ready to help you develop the product possibilities of the future. __i   Table 3. Average weight Day07142128Ref2,523 a3,4234,6906,9008,908 bRG52,591 a3,5164,7746,9338,938 bRG102,498 a3,5224,6656,5998,484 aTable 4. Growth Week1234totalRef0,899 a1,2672,2102,0076,385 aRG50,925 a1,2582,1602,0056,347 aRG101,024 a1,1431,9331,8855,985 bTable 5. FCR Week1234totalRef1,1061,0400,7111,0810,943 aRG51,2111,1540,7621,1351,011 abRG100,9801,1590,8351,1011,004 b November-December 2014 | INTERNATIONAL AQUAFEED  | 11 FEATURE

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Jul 24, 2017
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