The Rural Voice, 2005-05, Page 20(AL -MAR)
LUCK,/NOW
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16 THE RURAL VOICE
Parmalat, through Lactantia and
Beatrice, also offers an Omega-3
"milk beverage" which is regular
milk enhanced with flax oil.
The newest entry in the market is
Naturelle Plus Ice Cream, a premium
brand from Stoney Creek Dairy. Milk
for this ice cream is being produced
on a number of Teeswater-area
farms.
Getting Omega-3 fatty acids into
milk is more complicated than
simply adding ground flax to chicken
rations to get Omega-3 eggs. That's
because of the digestive system of
ruminant animals like cattle and
sheep are so different than chickens,
pigs or humans which have more
simple stomachs.
As Mandell explained, pigs' and
chickens' simple digestive systems
digest proteins in the stomach but the
main absorption of carbohydrates,
protein and fat takes place in the
small intestine by enzymes. In the
large intestine there is some
absorption of fatty acids, water and
minerals through bacteria in the gut.
n a ruminant digestive tract,
instead of having a large
microbial fermentation vat in the
small intestine, it is part of the
stomach. The bacteria, protozoa and
fungi in the reticulorem rumen get
the first crack at feed, breaking it
down and creating new products.
"The big advantage of the ruminant
is that these products can then go into
the small intestine and be fully
utilized."
This is the benefit that cattle and
sheep have in breaking down
cellulose in grasses and forage.
But with a monogastic animal like
a pig or chicken, if you feed it
unsaturated fatty acids it will deposit
unsaturated fatty acids in its flesh
and, in the case of laying hens, its
eggs. With ruminants, the bacteria
will convert the unsaturated fatty
acids into saturated fatty acids which
will be deposited into meat and milk.
The trick is to get the unsaturated
fatty acid past the rumen without
being converted by the bacteria to
saturated fatty acids.
The system used by Neilson was
developed by the University of
Guelph and leased to Foods Systems
Innovations Inc. It uses feather and
bone meal to escort the unsaturated
fatty acids through the rumen.