Poultry International - January 2017 - 24

24 ❙ PoultryInternational

Layer nutrition: 12 perennial
points of anxiety
If we were to mention the main nutritional issues faced by the egg
industry, we could focus on twelve points that are the focus of
nutritionists, genetic companies, feed mills, veterinarians and, of
course, farmers.
IOANNIS MAVROMICHALIS

Eggshell quality is a multifactorial
problem that needs to be considered
throughout the production cycle, but
has its roots in early layer nutrition.

Every nutritionist involved in
layer nutrition has come across a
number of problems that we can
summarize in the following brief
list.
Not only do these problems
keep showing up constantly, but
for most of them we do not have a
satisfactory solution.

1

Eggshell quality
remains the major
issue
This is a multifactorial problem that has deep roots in early

layer nutrition. The major issue
is that as the hen ages and tends
to produce a large egg, she cannot spare extra calcium, ending
up producing an ever-thinning
eggshell. To make matters
worse, the efficiency by which
she absorbs calcium from feed
drops considerably. It is only by
means of controlling egg size,
preserving and even boosting
calcium absorption capacity and
monitoring actual calcium levels
in the feed that this problem can
be addressed.

2

Egg size is a doubleedged problem

Fresh-egg markets prefer a
larger egg, but this comes with
a thinner eggshell, and it might
drain the hen from body reserves of energy and protein if
her nutrition is inadequate. Most
producers prefer to limit the upper egg size to ensure a longer
egg cycle, but others invest in
less but heavier eggs. The main
means towards both goals is
protein and especially methionine nutrition.

www.WATTAgNet.com ❙ January 2017


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Table of Contents for the Digital Edition of Poultry International - January 2017

Poultry International - January 2017
Contents
Editor’s Comment
News
EU poultry production forecast positive over next decade
Top Russian broiler producers grow in tough market
Antibiotic-free poultry’s broader economic implications
Layer nutrition: 12 perennial points of anxiety
Layer nutrition: 12 perennial points of anxiety
8 checks to minimize poultry processing rejects
Products
Marketplace
Advertisers’ Index
Poultry International - January 2017 - Poultry International - January 2017
Poultry International - January 2017 - Cover2
Poultry International - January 2017 - Contents
Poultry International - January 2017 - Editor’s Comment
Poultry International - January 2017 - 3
Poultry International - January 2017 - 4
Poultry International - January 2017 - News
Poultry International - January 2017 - 6
Poultry International - January 2017 - 7
Poultry International - January 2017 - EU poultry production forecast positive over next decade
Poultry International - January 2017 - 9
Poultry International - January 2017 - 10
Poultry International - January 2017 - 11
Poultry International - January 2017 - Top Russian broiler producers grow in tough market
Poultry International - January 2017 - 13
Poultry International - January 2017 - 14
Poultry International - January 2017 - 15
Poultry International - January 2017 - Antibiotic-free poultry’s broader economic implications
Poultry International - January 2017 - 17
Poultry International - January 2017 - 18
Poultry International - January 2017 - 19
Poultry International - January 2017 - 20
Poultry International - January 2017 - 21
Poultry International - January 2017 - 22
Poultry International - January 2017 - 23
Poultry International - January 2017 - Layer nutrition: 12 perennial points of anxiety
Poultry International - January 2017 - 25
Poultry International - January 2017 - 26
Poultry International - January 2017 - 27
Poultry International - January 2017 - 8 checks to minimize poultry processing rejects
Poultry International - January 2017 - 29
Poultry International - January 2017 - 30
Poultry International - January 2017 - 31
Poultry International - January 2017 - 32
Poultry International - January 2017 - 33
Poultry International - January 2017 - Products
Poultry International - January 2017 - 35
Poultry International - January 2017 - 36
Poultry International - January 2017 - 37
Poultry International - January 2017 - 38
Poultry International - January 2017 - 39
Poultry International - January 2017 - 40
Poultry International - January 2017 - 41
Poultry International - January 2017 - 42
Poultry International - January 2017 - Marketplace
Poultry International - January 2017 - Advertisers’ Index
Poultry International - January 2017 - Cover3
Poultry International - January 2017 - Cover4
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