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so net energy value of ingredients
embroiders in pigs what's the impact of
on formulation so the question now is
what's the impact of moving from a D
system or any system to net energy and
our pigs and bridles rather comparable
or different in terms of using me4 net
energy for remaining what we have seen
before energy is used differently before
newt the different nutrients the lowest
efficiency is observed for protein and
the is for fat and starch is in the
middle so that means that the ranking of
feed should be very different in terms
of the Emmy and net energy according to
the CRU nutrients contained in the
ingredient forest rating that we have
taken some very typical ingredients for
pigs but it could be also for poetry and
measured or calculated and listed there
are de AME and net energy values we have
also compared or listed in that table
the energy value of a diet which is a
combination of the different ingredients
but instead of expressing the energy
value in terms of absolute energy values
it is more clear it is clearer and more
interesting to express the energy value
of the different ingredients as a
percentage of the energy value of the
diet so that table shows that the fat or
the corn which contain a light level of
fat or items of starch are clearly under
estimating underestimated on the de and
any basis if we assume that the net
energy value is the closest value to the
truth on the other hand the energy value
of soybean meal is clearly overestimated
on the
and Emmy basis so on the other hand that
means that keeping a de or any system is
problematic for precise evaluation of
the true energy value of feeds this is
also illustrated in the consequence of
using the different energy systems for
formulation we did a formulation on
about 50 different formulas for pigs
piglets growing please south and so on
and you can see very clearly that by
changing the formulation from a de to a
net energy system you include more
cereals and more starch diets starting
regions and also more fat in the diets
and on the other hand you would use the
amount of soybean meal and peas
so less protein sources and then you
have get lower protein diets and then
you have to supplement with more
synthetic amino acids so clearly this
shows that diet formulation or the
ingredients which are included in the
feed is very much dependent on the
energy system and also it is not shown
here but the cost of the formulas will
also be changed according to the energy
system used for formulation the question
now is do pigs and broilers behave
similarly for doing that we have also
used the meaning the same ingredients
many use in poultry and pig feeds and
you can see that the efficiency of ami
for net energy in both pigs and broilers
for these different ingredients is very
very similar so that means that the net
energy system is ranking very similarly
these different ingredients and that
also shows that the net energy system
should also be used since you get big
differences in efficiency of me4 net
energy for
extreme ingredients such as soy oil or
soybean meal so in total clearly the
ranking between ingredients is totally
different in the day me de-yummy and
Nettie systems and this has consequences
on diets formulas in addition the
utilization of me4 night energy looks
very similar in peaks and embroiders for
both diets and ingredient which means
that as it has been done for pigs the
net energy cons concept should also be
used and adopted in the future in poetry
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