Residual fibre structures from rapeseed meal in pigs and poultry

Rapeseed meal is a co-product form the rapeseed oil production and is used in animal feed for its high protein content. Next to proteins, rapeseed meal is high in fibres, which mammals, like chicken and pigs, cannot digest. In the colon of these animals fibres can be fermented by the microbiota present, but the fermentation of rapeseed meal fibres is not complete.

Promovendus AM (Annemieke) Pustjens PhD MSc
Promotor H (Harry) Gruppen
Copromotor MA (Mirjam) Kabel WJJ (Walter) Gerrits
Organisatie Wageningen University, Laboratory of Food Chemistry

vr 18 oktober 2013 13:30 tot 15:00

Locatie Auditorium, building number 362
Generaal Foulkesweg 1
6703 BG Wageningen
If chickens had a pig’s colon, they would benefit from increased carbohydrate solubility from rapeseed meal.
Annemieke Pustjens

Technologies, with or without the addition of enzymes, are explored with the aim to improve fibre fermentation. The (pretreated) rapeseed meal is digested in vitro  and in vivo. Unfermented fibre-structures from rapeseed meal in excreta and faeces of broilers and growing pigs are characterised in detail. In broilers mainly complex fibre-structures cannot be fermented. Pigs have a longer intestinal tract and are therefore able to ferment fibres further. Unfermented fibre structures from rapeseed meal are mainly rhamnogalacturonan, arabinan, xyloglucan, (glucurono)xylan, galactomannan and cellulose.