expanding uses for oil meal and meal components qasim chaudry & david turley 24 april 2009,...
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Expanding uses for oil meal and meal components
Qasim Chaudry & David Turley
24 April 2009, Foggia, Italy
Animal feedRSM c 40% protein
Use limited by – glucosinolates
– tannins
– sinapines
– high fibre content (non-ruminants
• RSM less palatable than soya – so blended
• Reduces bioavailability of proteins, minerals and vitamins, bitter taste + can taint produce
• In large ruminants: up to 25-30% of concentrate intake can be as RSM
• Sheep 10-30% of diet
• Pig & poultry most sensitive– Esp to glucosinolate levels (decreased
performance in piglets and finishing animals as RSM increases – but data very variable and depends on glucosinolate content (<4um/g glucosinolate can be fed at up to 30% of diet with no ill effects))
Use of RSM
• Broilers (meat) 10-15% dietary limit
• Layers – bitter taint in brown eggs (from sinapine)
– <10-15% in layers of white eggs
– (breeding to remove defective gene)
Use of RSM
• 122 million tonnes of compound feed consumed in EU – 27% is oilseed meal cake (33 mt)
• 68% of this is soya meal
• Only 9% is Rape Meal– Significant potential to increase RSM use
in feeds (UK assessment suggests 50% increase) - but needs clear guidance !
EU animal feed use
• Proteins (concentrates and fractions) (ph mediated salt extraction and diafiltration)
• Glucosinolates (solvent extracted)
– Pathogen control– Dietary benefits of isothiocyanates
• Phenolics – sinapine (ph mediated or salt extraction and
diafiltration or alternatively alkaline solvent (alcohol) extraction) – antioxidant properties– Removal improves value for other components (binds
to proteins causing darkening)
• Biocidal Proteins
Alternative uses
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