Feed Manufacture – The Processes
Many processes are involved in the preparation of pelleted diets. For example,
most of the major ingredients have to be ground, before being
mixed together and transported to a conditioning barrel where steam
can be introduced and the diet can be held prior to being fed
through a pellet press and cooled.
Liquid additives are applied to the diet either in the mixer prior to pelleting or by being sprayed
(either as received or after dilution) on to the freshly prepared pellets in
Any of these operations can affect the uniformity of the final
diet, its feeding value and the stability
of any additives. Consequently, they are of considerable interest/importance
to many clients involved in maximising the performance of their
livestock and to those concerned with product development.
Grab (random) aliquots of feed (150 g for every 20 kg of feed manufactured)
at the end of production line are automatically taken by our staff at the mill.
However, because we allow clients access to all stages involved in the production
of the diets, it is possible to sample and subsequently assess the effects
of the different intermediate processes involved in diet preparation on such
parameters as diet homogeneity, stability
of additives, pellet integrity, nutrient
content and shelf-life.
The fineness of grind of the dietary raw materials, the time
for which they are mixed and the size of the pellets produced
are all factors that can affect the impact of the diet on the target livestock.
The time of exposure to conditioning and the temperature
to which the diet is subjected are other features which are under our control
and can be adjusted to fine-tune the properties of the final
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