Fermented
by-products
There are many
good reasons for using fermented by-products. The main
reason is poor levels of hygiene in the liquid feed mixing
area on the farm that overwhelm the fermentation with
contaminates - in practice around 90 % of fermentations
will fail due micro-organism contaminates like yeast.
These unwanted micro-organisms that are present in the
liquid feed room are active, some airborne getting sucked
into the tank as it empties thus contaminating the fermented
feed. The liquid feed room can be compared to a dairy
for example, and we all know the high levels of hygiene
they adopt.
When a by-product
is fermented with the lactic acid bacteria (LAB), at the
factory that has produced it i.e., under the same hygienic
conditions as their food production, the by-product is
free from other unwanted micro-organisms. Now the by-product
contains exactly the LAB we need and starts to multiply
unhindered throughout the by-product.
When this LAB
treated by-product is delivered to the farm who uses it
to inoculate their liquid feed, we are now more of less
guaranteed of a successful fermentation. The quantity
of lactic acid bacteria in the liquid feed is now so huge
it overwhelms all other microorganisms present.
By LAB fermenting
the by-products ensures an increased storage life of the
product, in fact if you can omit air (oxygen), it will
stay preserved for years.
To avoid depleting
amino acids in the feed it is essential that the fermentation
process takes place very quickly. This can only be achieved
if the correct quantities of carbohydrates or sugar are
present in the feed and if insufficient quantities are
not available, adding a LAB fermented by-product will
ensure a fast fermentation throughout the feed is achieved. |