Poultry International - January 2018 - 39

PoultryInternational ❙ 39

internal bleeding (worst case scenario). Obviously,
the damage increases with ingested volume. As
such, it strongly prohibits using rice hulls in diets for pigs and poultry - even at the slightest
concentration. Most rice mills use rice hulls as a
source of energy as they burn it to produce heat
or electricity, or both. Lamentably, some mills
incorporate some part of their rice hull production
into rice bran, and this is the first reason why some
such products fail. To this end, it is recommended
to test incoming rice bran for silica according to
volume and frequency of loads.
When the hulls are removed, we are left
with a brownish grain - also known as brown
rice. This looks very much like wheat, and like
wheat, it is very hard to boil and chew. Thus,
the outer brown layer, which is rich in fiber (the
hard to chew part), is removed. This is the actual
"bran," again equivalent to wheat bran, even in
the profile of the fiber: it is rich in pentosans, especially arabinoxylans. Because of this, it should
be equally beneficial to use a wheat-specific
enzyme when high levels of rice bran are used.
Most likely, this is going to benefit more poultry
than pigs, but all these assumptions require documentation.
Further down the rice milling process, the
embryo is removed. Rice grain is a seed, after all,
and contains an embryo that will give a new plant
- the rest are its first food. This embryo is rich
in protein and oil. Removing them leaves the rice
we consume, which is practically a starch-rich
staple. In some instances, especially in Asia, rice
oil is extracted, but in most cases, the embryos
are blended with bran. This is a desirable process, but it can also be the root of many troubles.
Along with the oil, there are a good amount of
enzymes that oxidize it (used by the new seedling
to obtain its first energy "drink" before starch
is mobilized from afar). These lipoxidases start
acting as soon as they are exposed to the air, and
this happens when the embryos are torn apart
during the milling process. Thus, rice bran conJanuary 2018 ❙ www.WATTAgNet.com

Removing the outer hull leaves a brownish grain.
Airborne77 I Dreamstime.com

White rice is a polished grain that is mostly starch.
Andrey Ospishchev I Dreamstime.com

tains high levels of oil, which gives it high nutritive value for animal feeding, but this oil might
be highly oxidized, which causes feed refusal
by animals - especially young ones. To prevent
this, an antioxidant should be added at the rice
mill, but this is seldom done, perhaps due to cost
or lack of mixing abilities. If unprotected, fullfat rice bran (as it is often called) will oxidize
rapidly unless it is consumed within days from its
production.


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Table of Contents for the Digital Edition of Poultry International - January 2018

Poultry International - January 2018
Contents
Editor’s Comment
News
Global chicken meat exports to increase 3 percent in 20 18
Chicken consumption survey reveals purchase influences
Rwandan egg farm uses modern production techniques
VIV MEA expanded, enriched for 2018
Saudi Arabia’s poultry industry growing despite challenges
Robotics in poultry production to transform sector
How NIR poultry feed ingredient analysis increases output
Understanding rice bran in pig, poultry feeds
Poultry products recognized in SPACE innovation awards
How to improve chicken leg meat profits, reduce waste
Products
Marketplace
Poultry International - January 2018 - Poultry International - January 2018
Poultry International - January 2018 - Cover2
Poultry International - January 2018 - Contents
Poultry International - January 2018 - Editor’s Comment
Poultry International - January 2018 - 3
Poultry International - January 2018 - News
Poultry International - January 2018 - 5
Poultry International - January 2018 - Global chicken meat exports to increase 3 percent in 20 18
Poultry International - January 2018 - 7
Poultry International - January 2018 - 8
Poultry International - January 2018 - 9
Poultry International - January 2018 - 10
Poultry International - January 2018 - 11
Poultry International - January 2018 - Chicken consumption survey reveals purchase influences
Poultry International - January 2018 - 13
Poultry International - January 2018 - 14
Poultry International - January 2018 - 15
Poultry International - January 2018 - 16
Poultry International - January 2018 - 17
Poultry International - January 2018 - 18
Poultry International - January 2018 - 19
Poultry International - January 2018 - 20
Poultry International - January 2018 - 21
Poultry International - January 2018 - 22
Poultry International - January 2018 - 23
Poultry International - January 2018 - Rwandan egg farm uses modern production techniques
Poultry International - January 2018 - 25
Poultry International - January 2018 - 26
Poultry International - January 2018 - 27
Poultry International - January 2018 - VIV MEA expanded, enriched for 2018
Poultry International - January 2018 - 29
Poultry International - January 2018 - Saudi Arabia’s poultry industry growing despite challenges
Poultry International - January 2018 - 31
Poultry International - January 2018 - Robotics in poultry production to transform sector
Poultry International - January 2018 - 33
Poultry International - January 2018 - 34
Poultry International - January 2018 - 35
Poultry International - January 2018 - How NIR poultry feed ingredient analysis increases output
Poultry International - January 2018 - 37
Poultry International - January 2018 - Understanding rice bran in pig, poultry feeds
Poultry International - January 2018 - 39
Poultry International - January 2018 - 40
Poultry International - January 2018 - 41
Poultry International - January 2018 - Poultry products recognized in SPACE innovation awards
Poultry International - January 2018 - 43
Poultry International - January 2018 - 44
Poultry International - January 2018 - 45
Poultry International - January 2018 - How to improve chicken leg meat profits, reduce waste
Poultry International - January 2018 - 47
Poultry International - January 2018 - 48
Poultry International - January 2018 - 49
Poultry International - January 2018 - Products
Poultry International - January 2018 - Marketplace
Poultry International - January 2018 - 52
Poultry International - January 2018 - Cover3
Poultry International - January 2018 - Cover4
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