Document Detail


Nutritional assessment of genetically modified rapeseed synthesizing high amounts of mid-chain fatty acids including production responses of growing-finishing pigs.
MedLine Citation:
PMID:  17760308     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The nutritive value of genetically modified myristic acid-rich rapeseed, in which a acyl-thioesterase gene inserted, was studied. Crude nutrients, amino acid and fatty acid profiles as well as mineral and glucosinolate contents were determined and compared with those of the non-transgenic parental cultivar. The concentration of crude nutrients, minerals and amino acids were found to be within the range of natural variance. The myristic and palmitic acid content increased from 0.1 - 11.4% and from 3.6-20%, respectively, at the expense of oleic acid, which decreased from 68.6-42.6% of total fatty acids. The glucosinolate contents increased from 12.4 micromol/g in the parental plant to 19 micromol/g DM in the GM-plant. Full-fat rapeseed of both cultivars was incorporated in pig diets at a level of 15%, and the digestibility and the production efficiency were tested under ad libitum feeding conditions with ten pigs each over the growing finishing period from 32-105 kg BW. The experimental diets did not show significant differences in digestibility and energetic feeding value. However, feed intake and weight gain decreased presumably due to the increasing glucosinolate intake associated with the feeding of transgenic rapeseed. The dietary fatty acids profile influenced the fatty acid profile of body fat. Myristic acid accumulated in back fat and intramuscular fat while the oleic acid content decreased. The increased glucosinolate intake affected the weight of thyroid glands and their iodine concentration.
Authors:
Hartwig Böhme; Eike Rudloff; Friedrich Schöne; Wolfgang Schumann; Liane Hüther; Gerhard Flachowsky
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Archives of animal nutrition     Volume:  61     ISSN:  1745-039X     ISO Abbreviation:  -     Publication Date:  2007 Aug 
Date Detail:
Created Date:  2007-08-31     Completed Date:  2007-09-27     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  101222433     Medline TA:  Arch Anim Nutr     Country:  England    
Other Details:
Languages:  eng     Pagination:  308-16     Citation Subset:  IM    
Affiliation:
Institute of Animal Nutrition, Federal Agricultural Research Centre (FAL), Braunschweig, Germany.
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MeSH Terms
Descriptor/Qualifier:
Amino Acids / analysis
Animal Feed / analysis*
Animal Nutritional Physiological Phenomena
Animals
Body Composition / drug effects
Brassica rapa / chemistry*,  genetics*
Energy Intake
Fatty Acids / analysis*
Glucosinolates / analysis
Minerals / analysis
Nutritive Value
Plants, Genetically Modified
Random Allocation
Swine / growth & development*,  metabolism
Weight Gain
Chemical
Reg. No./Substance:
0/Amino Acids; 0/Fatty Acids; 0/Glucosinolates; 0/Minerals

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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