Poultry International - June 2018 - 32

32 ❙ PoultryInternational
LAYING HEN NUTRITION
can tolerate higher levels of fiber
in the diet than young ones.
Consistent benefits have been
achieved using a lignocellulosetype fiber additive. Appropriate
fiber provision is also known to
improve the digestibility of certain
nutrients.
Physical structure of the
feed is key to stimulate gut

5

Gut health and
immunity

Terrence O'Keefe

Cage-free layers face
a greater challenge
in terms of gut health, as they are
more in contact with the manure.
Bacteria, protozoa and worms all
have more opportunity to infect
birds. Supporting gut health by
nutritional means is therefore even
more important, as are
good management and
biosecurity.
Egg producers
Improvements in
predict cages won't
intestinal health can
go away by 2025:
help to help reduce the
www.WATTAgNet.
effect of these disease
com/articles/33188
challenges. As well as
suitable fiber provision,
probiotics and prebiotics
physiology and maintain gut
have given good results in free-range
health. The diet should supply a
hens. Essential oils and mediummixture of dietary fiber to help
chain fatty acids are also used.
the bird find a digestive balance.
These nutritional strategies become
This will help hens maintain
even more interesting as the market
an optimum gut microbiota,
looks to reduce the use of antibiotics.
as well as helping to prevent
vices such as feather pecking.
Pullet rearing
A higher-fiber diet increases the
When rearing hens for
time birds spend eating, satiating
cage-free systems, many
their need to peck and reducing
different management
time available for negative
techniques are employed - including
bird interactions. Beak tipping
training birds to move between levels.
appears to be less necessary in
But there are also many nutritional
caged hens. Different countries
considerations. Robustness and
have different regulations
uniformity are important for all pullets
regarding beak tipping and are
but particularly so for those destined
banned in some. Therefore,
for a cage-free system. Making sure
other ways to control injurious
the diets are high enough in protein
pecking in cage-free housing are
to ensure good growth during the
required.
rearing phase is essential. Calcium is

6

also important to ensure good bone
strength - especially in the keel and
legs - and can sustain the increased
mobility required in an aviary
environment.
Due to increased exposure to
pathogens and potential disease
vectors, pullets destined for free-range
housing receive more vaccinations.
Some producers will add electrolytes,
vitamins and minerals to the water at
these times to support their immune
systems and reduce stress. Again,
ensuring target weights are met will
prevent setbacks and mean that, when
transferred to the laying house, they
are in the best possible condition. As
opposed to a cage environment, the
birds will need to learn where the feed,
water and nest boxes are.

7

Breed
considerations

In many cases, the
breeds used in caged
and cage-free systems will be the
same - with differences down to
country or company preferences.
Brown egg layers are more popular
in Western European markets and
are often associated with free range.
While white egg layers are more
common in regions where hens
are caged, they can also be kept
successfully in cage-free systems.
Brown hens are bigger birds, with
greater maintenance requirements
and poorer feed conversion than
white birds. Several breed companies
are now offering breeds specifically
developed for free-range systems,
www.WATTAgNet.com ❙ June 2018


http://www.WATTAgNet.com/articles/33188 http://www.WATTAgNet.com

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

Poultry International - June 2018
Contents
Editor’s Comment
News
2018 Poultry Nutrition & Feed Survey: Poultry feed formulations driven by consumers, market
Global poultry trade may become turbulent in 2018
Newly formed Avara takes third spot in UK poultry sector
Why chicken is the sustainable meat option
Poultry veterinary provision undergoing signifi cant change
8 considerations for cage-free laying hen nutrition
Taking the extra steps for poultry wastewater reuse
6 poultry processing tips to improve carcass quality
Products
Marketplace
Poultry International - June 2018 - CT1
Poultry International - June 2018 - CT2
Poultry International - June 2018 - Poultry International - June 2018
Poultry International - June 2018 - Cover2
Poultry International - June 2018 - BB1
Poultry International - June 2018 - BB2
Poultry International - June 2018 - Contents
Poultry International - June 2018 - Editor’s Comment
Poultry International - June 2018 - 3
Poultry International - June 2018 - News
Poultry International - June 2018 - 5
Poultry International - June 2018 - 2018 Poultry Nutrition & Feed Survey: Poultry feed formulations driven by consumers, market
Poultry International - June 2018 - 7
Poultry International - June 2018 - 8
Poultry International - June 2018 - 9
Poultry International - June 2018 - 10
Poultry International - June 2018 - 11
Poultry International - June 2018 - 12
Poultry International - June 2018 - 13
Poultry International - June 2018 - 14
Poultry International - June 2018 - 15
Poultry International - June 2018 - 16
Poultry International - June 2018 - 17
Poultry International - June 2018 - Global poultry trade may become turbulent in 2018
Poultry International - June 2018 - 19
Poultry International - June 2018 - Newly formed Avara takes third spot in UK poultry sector
Poultry International - June 2018 - 21
Poultry International - June 2018 - 22
Poultry International - June 2018 - 23
Poultry International - June 2018 - 24
Poultry International - June 2018 - 25
Poultry International - June 2018 - Why chicken is the sustainable meat option
Poultry International - June 2018 - 27
Poultry International - June 2018 - Poultry veterinary provision undergoing signifi cant change
Poultry International - June 2018 - 29
Poultry International - June 2018 - 8 considerations for cage-free laying hen nutrition
Poultry International - June 2018 - 31
Poultry International - June 2018 - 32
Poultry International - June 2018 - 33
Poultry International - June 2018 - 34
Poultry International - June 2018 - 35
Poultry International - June 2018 - Taking the extra steps for poultry wastewater reuse
Poultry International - June 2018 - 37
Poultry International - June 2018 - 38
Poultry International - June 2018 - 39
Poultry International - June 2018 - 6 poultry processing tips to improve carcass quality
Poultry International - June 2018 - 41
Poultry International - June 2018 - 42
Poultry International - June 2018 - Marketplace
Poultry International - June 2018 - 44
Poultry International - June 2018 - Cover3
Poultry International - June 2018 - Cover4
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