Expanding uses for oil meal and meal components Qasim Chaudry & David Turley 24 April 2009, Foggia, Italy

Animal feed RSM 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