Enzymes for Animal Feed
Animal feed is composed of plant material, cereals and vegetable
proteins, which cannot be fully digested and utilised by animals.
However, feed utilization and digestion can often be increased
by the addition of external enzymes to the feed.
Many cereals have a proportion of their energy in the form of
nonstarch polysaccharides (NSPs), more commonly known as
fibre. Enzymes are to break down these NSPs, which lead in increase
of metabolisable energy and protein utilisation.
In some cereals, a large part of the NSP is soluble and causes
high viscosity in the small intestine of a monogastric animal.
As a result, digestion becomes impaired. Selected microbial enzymes
can partially degrade this NSP, lowering viscosity in the intestine
and improving feed utilisation.
Many vegetable protein sources, such as soybean meal, also contain
NSP. The addition of selected microbial enzymes can be used to
break down the NSP and make it available to the animal. Just as
with cereals, the metabolisable energy and protein utilisation
for vegetable protein sources can be improved by using the correct
combination of amylases and proteases.
In almost all plant material used for animal feed, a large part
of the mineral phosphorus is bound in the form of phytic acid,
which cannot be degraded by monogastric animals. Phytase liberates
part of the bound phosphorus and makes it possible to reduce the
phosphorus content of the feed by 25-30%. The R & D center
at Maps has successful produced phytase, and soon shall be commercially
| TOP |
Enzyme for poultry feed
The main cost in the raising of poultry is the feed, which is
mainly cereal-based. Maize (corn) has a low content of soluble
NSPs and is considered to be an ideal cereal. Other cereals contain
higher amounts of NSPs that normally impair feed utilisation.
It is possible to partially degrading these NSPs with selected
enzymes acting on specific raw materials. For example, when using
a standard dose of the Maps xylanase enzymes for poultry feed,
the metabolisable energy value for wheat increases.
Some cereals are also avoided in poultry diets due to the adverse
effects caused by NSP. Barley is a prime example because inclusion
of more than 10% barley in broiler diets gives rise to wet and
sticky droppings as well as reduced growth rates. This is due
to beta glucan, a soluble, high viscosity NSP located in the cell
walls of the barley grain. By adding microbial enzymes to the
barley based feed, the NSP could be degraded giving an improvement
in droppings, better feed utilisation and faster growth rate.
Maps offers a number of enzymes, each with its own special properties.
These can be used either alone or in combination in order to obtain
faster growth of the animal; better feed utilisation (feed conversion
ratio); and more uniform production.
||Mixture of alpha amylase and protease
||Mixture of alpha amylase, protease and beta glucanase
||Mixture of various enzymes
||Mixture of xylanase, cellulase and beta glucanase