Feed International - August 2017 - 23
FeedInternational ❙ 23
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based diets, this deficiency is even
more pronounced as wheat biotin is
Most authorities recommend
adding a purified source of d-biotin
in most poultry feeds through the
use of the usual vitamin premix.
The amount added (without taking
into account natural ingredients) is
a matter of discussion, because as
we have already seen, biotin is very
expensive. My personal preference,
based on literature review and commercial experience, is adding 0.1
mg/kg biotin in all broiler and layer
diets based on corn, and double this
amount in diets based on wheat.
Perhaps this is an overindulgence,
but wet litter is a common problem
in broilers and nowadays an ever
bigger one with cage-free layers.
It is also prudent to review such
recommendations when alternative
protein sources are used, but again,
we have such limited and outdated
information on biotin requirements
and bioavailability that it is best to
err towards the safe side.
DEDICATED TO ANIMAL
Biotin is a signiﬁcant vitamin
Biotin is a significant vitamin
because it holds a central role in
nutrient metabolism, but it is only
needed in miniscule amounts.
Most natural ingredients do not
contain enough biotin, and wheat
is virtually devoid of bioavailable biotin. Thus, biotin must be
supplied through premixes, but
its enormous cost warranties vigilance against low-cost products. ■
August/September 2017 ❙ www.WATTAgNet.com
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