Poultry International - June 2018 - 35

PoultryInternational ❙ 35

LAYING HEN NUTRITION
focusing on robustness and suitable
behavioral traits.

8

Environmental
variability

One of the main
differences between
caged and cage-free housing systems
for laying hens is the variability in
environmental conditions. The extent
to which external temperatures are of
influence will depend on ventilation
and heating provision in the house.
Free-range birds also must contend
with changing weather conditions.
Colder temperatures increase the bird's
maintenance requirements for energy,
while high temperatures can reduce
feed intakes. Therefore, the country
and area of production will influence a
hen's dietary requirements.

In conclusion
Nutritional guidelines are available
for each breed, with specifications
linked to feed intakes. It is therefore
important to know what the hens are
eating on a particular farm to tailor
the diet accordingly. These can form
the basis of the hen's diet with further
amendments related to specific housing
systems, egg markets or climatic
conditions. Specific management
guides for keeping cage-free hens are
also produced by genetics companies.
With cage-free production,
there is much greater variability,
dependent on many environmental
factors. Producers need to get to know
their houses and flocks - working
closely with feed companies to tailor
June 2018 ❙ www.WATTAgNet.com

nutritional specifications. As for all
laying hens, production data should be
monitored closely, to change diets at
the optimal time. In this way, cage-free
production can be optimized, egg size
controlled and egg quality ensured. ■

Zoe Kay is an independent
consultant providing technical
services to the animal health and
nutrition industry. She can be
reached at cuckooconsulting@
gmail.com.


http://www.chinaphytase.com 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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