Feed Strategy - September 2019 - 40

40 ❙ FeedStrategy
BROILER FEED FORM
gut motility, swollen proventriculus,
poor water and electrolyte reabsorption, increased feather picking or
increased susceptibility to enteric
pathogens. However, apparent nutrient
digestibility values can be positively
affected by reduced feed particle
size, whereas apparent metabolizable
energy was not affected.
Ileal starch digestibility values
were 95% to 98% for corn, demonstrating that the differences were
minor. Taking all aspects into
account, with the exception of younger
birds, a coarse particle size in broiler
feed provides greater benefits in terms
of performance and health.
For young birds, on the other
hand, finer granulation is required,
due to their still underdeveloped
digestive system. Therefore, it is
reasonable to increase the preparation
of nutrients and reduce the particle
size in order to improve nutrient
absorption in young animals.

High pellet quality (left) results in increased feed intake, body weight
gain and feed conversation rate compared with poor pellet quality,
which has a high amount of fines (right). Courtesy Buhler Group

The influence of process
parameters
The main target of the grinding
process in broiler feed production
is to create coarse granulation with
a particularly narrow particle size
distribution. One way of achieving
this is to use a roller mill. The
particles produced in this process
have a narrow distribution and are
irregularly shaped, which means
there is a large surface area while
still ensuring coarse granulation.
Although the milling process
certainly has an influence on bird
performance, average particle size

and particle size distribution have an
even greater impact.
Particle size is further reduced
during the pelleting process. The
coarser the initial granulation, the
greater the particle size reduction
in the pellet mill, which is why
considerable reduction is expected
in broiler feed. Particle size distribution is narrower than it was
before pelleting.

Guideline values for particle
size in broiler feed
The optimum particle size for broilers
is influenced by the feed form, age

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Feed Strategy - September 2019

Table of Contents for the Digital Edition of Feed Strategy - September 2019

Feed Strategy - September 2019
Contents
In the Mix
Industry Happenings
Top Feed Companies: 102 companies rise to the top in 2018 Report highlights global compound animal feed manufacturers producing volumes over 1 million metric tons in 2018.
5 regulatory considerations for EU feed manufacturers
EU aligns biosecurity measures to contain ASF
Marketing nutrition through your own newsletter
How do the nutritional values of wheat compare to corn?
7 ways to prevent acidosis, bloating in dairy cows
Broiler feed form, particle size assists performance
Products
Advertisers’ Index
Feed Strategy - September 2019 - Feed Strategy - September 2019
Feed Strategy - September 2019 - CT2
Feed Strategy - September 2019 - Cover1
Feed Strategy - September 2019 - Cover2
Feed Strategy - September 2019 - Contents
Feed Strategy - September 2019 - In the Mix
Feed Strategy - September 2019 - Industry Happenings
Feed Strategy - September 2019 - Top Feed Companies: 102 companies rise to the top in 2018 Report highlights global compound animal feed manufacturers producing volumes over 1 million metric tons in 2018.
Feed Strategy - September 2019 - 5 regulatory considerations for EU feed manufacturers
Feed Strategy - September 2019 - 6
Feed Strategy - September 2019 - 7
Feed Strategy - September 2019 - 8
Feed Strategy - September 2019 - 9
Feed Strategy - September 2019 - 10
Feed Strategy - September 2019 - 11
Feed Strategy - September 2019 - 12
Feed Strategy - September 2019 - 13
Feed Strategy - September 2019 - EU aligns biosecurity measures to contain ASF
Feed Strategy - September 2019 - 15
Feed Strategy - September 2019 - 16
Feed Strategy - September 2019 - 17
Feed Strategy - September 2019 - 18
Feed Strategy - September 2019 - 19
Feed Strategy - September 2019 - 20
Feed Strategy - September 2019 - 21
Feed Strategy - September 2019 - 22
Feed Strategy - September 2019 - 23
Feed Strategy - September 2019 - 24
Feed Strategy - September 2019 - 25
Feed Strategy - September 2019 - Marketing nutrition through your own newsletter
Feed Strategy - September 2019 - 27
Feed Strategy - September 2019 - How do the nutritional values of wheat compare to corn?
Feed Strategy - September 2019 - 29
Feed Strategy - September 2019 - 30
Feed Strategy - September 2019 - 31
Feed Strategy - September 2019 - 7 ways to prevent acidosis, bloating in dairy cows
Feed Strategy - September 2019 - 33
Feed Strategy - September 2019 - 34
Feed Strategy - September 2019 - 35
Feed Strategy - September 2019 - Broiler feed form, particle size assists performance
Feed Strategy - September 2019 - 37
Feed Strategy - September 2019 - 38
Feed Strategy - September 2019 - 39
Feed Strategy - September 2019 - 40
Feed Strategy - September 2019 - 41
Feed Strategy - September 2019 - Products
Feed Strategy - September 2019 - Advertisers’ Index
Feed Strategy - September 2019 - 44
Feed Strategy - September 2019 - Cover3
Feed Strategy - September 2019 - Cover4
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