MECHANICS BURG (Cum
berland Co.) Purina Mills Inc.
this week introduced a new type of
dairy feed, “Proteus,” that is
targeted at reducing die amount of
total crude protein fed to a dairy
cow and also the amount of nitro
gen eliminated through a cow’s
urine.
The importance of this commer
cial feed introduction is that it
marks the first available dairy food
product (to knowledge) developed
with the intent of targeting consis
tent and reliable delivery of pro
teins for digestion in specific areas
of the dairy cow to increase the
efficiency of total protein
utilization.
Purina Mills Inc. ofGcials intro
duced the product along with two
other product changes during a
special dairy feeds seminar for
Pennsylvania and regional Purina
dealers, held Tuesday at the Holi
day Inn-West, in Mechanicsburg.
According to ofGcials, the Pro
teus product is not seen primarily
as a milk-production enhancement
feed.
The company said that it may be
seen by dairy producers as a way to
maintain high production while
using less total crude protein and
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Dealers Hear About New Dairy Feed
allowing more energy in the radon
to maintain body weight
The potential is that it could per
haps benefit milk production and
also overall and reproductive
health.
During a normal lactation, for a
period following calving, a cow
uses more energy to make milk
than it can acquire through its diet
That energy comes from energy
stores in the cow.
Too much dependence on body
reserves can result in ketosis which
can create a number of cow health
problems, frequently including
laminitis and foot-shunt problems.
Since only so much feed can be
taken in by a dairy cow daily (usu
ally expressed in terms of dry mat
ter), die assumption is that if a high
milk production ration can be
altered to reduce the amount of
protein in the ration there may be
room to add more energy, and thus
be able to boost some production.
That is part of the strategy being
used by Purina, in that it is combin
ing the proteus product into its line
of EXT-Nuggets. The nuggets are
the company’s existing high
energy feed product, used to deliv
er high energy for more milk
production.
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During a discussion of its deve
lopment, Dr. Mark Hanigan, dairy
research manager to Purina, said
that work was done to develop the
product in five steps.
The first step was with a study
on “post-ruminal nutrient infu
sions,” which basically means that
a study was done with amino acids
and dairy research animals to
determine empirically what made
a difference (would serve as a
necessary complement) in small
intestine absorption compared to
protein digested in the rumen.
After discovering from that
research that certain protein-based
substances infused into the diges
tive system could make up for less
total protein being pumped into the
rumen, the next phase was deve
loping the HiVAP material that
would accomplish that bypass pro
tein fete, and make feeding more
efficient
Digestibility studies were next
developed as a third phase, and
then early lactation studies were
done, followed by actual field
trials. Some of the field trials were
done with Pennsylvania herds.
In other announcements, Purina
officials said that the company has
changed the manufacturing pro
cesses for its milk replacer.
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Lartfclittf 'Faming; Saturday,' October IVIMM37
Dick Poeppel hands two different milk replacer solutions
to a seminar attendee to demonstrate mlxlbility differences.
Dick Poepple, marketing mana
ger of the Purina dairy business
group, in St Louis, Mo., presented
the new milk replacer to the deal
ers and demonstrated the improved
mixibility and suspendibility of the
product.
He also reminded dealers that
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they should make sure to instruct
their customers to keep in mind the
temperature of the stored milk
replacer, and the temperature of
the mixing vessel (bucket) when
making up a batch of milk replacer
to feed calves.
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