Fibre provided to layer flocks must be insoluble with
as much as possible of a coarse texture. Fibre could be
provided through the feed. According to the raw material
available, total fibre content can be very variable. 2.5%
of raw cellulose is considered as low level, above 5% as
a high level. Most of the fibre can be provided by oilseed
meal (sunflower / rapeseed), alfalfa (or lucerne), and
oats. Cereal by-products could provide a good amount
of fibre in the feed, but their texture is usually too fine
to have ‘structure effect’ on the digestive tract.