Poultry International - January 2017 - 21

PoultryInternational ❙ 21

ity, because this balanced approach to selecting breeder
candidates is being helped by genomic techniques.
Santiago Avendano, senior geneticist, Aviagen,
explained: "Genomics is especially important for attributes for which there is a limited amount of individual
records at the time of selection, like sex-limited traits.
For instance, in the past we have been able to make a
prediction of the genetic potential for egg production
or hatchability of a male selection candidate based
on the qualities of its family, but with genomics we
can now see exactly the genetic configuration of each
selection candidate and use it for predicting its genetic
potential more accurately."

Feather coverage
Feather coverage on laying hens provides an example
of where what might be thought of as a welfare trait has
actually proven to be a trait that is of increasing economic performance.
"Selecting for feathering is an important trait from
a feed efficiency point of view so that hens are not
overeating (to maintain body temperature), but it is also
important from a consumer and society point of view
because in free range or in aviaries, consumers want to
see the welfare of the birds," said van Sambeek.
Cage-free houses provide more space per hen and
this makes temperature control in the layer house more
of an issue in the winter months, so better feather coverage can save on feed and fuel costs.

Preparing for beak trimming bans
Dr. Neil O'Sullivan, research director, Hy-Line
International, said the company discontinued beak
trimming selection candidates more than 20 years ago.
He said they didn't document beak shape when they
first started selecting nonbeak-trimmed birds, but he
said that their perception is that beak shape might have
changed slightly. However, the big change has been in
the bird's behavior.
"Now it is the decision of the farm management to
beak treat," O'Sullivan said. "If birds are in open-sided
houses, they probably need to be beak trimmed, but
you don't have to otherwise."
January 2017 ❙ www.WATTAgNet.com

Poultry breeders see paradigm shift
with genomic selection:
www.WATTAgNet.com/articles/9697
Finding solutions to breast meat
myopathies
Breeders have been quite successful in increasing
the breast meat yield of broilers. In some markets,
particularly in the U.S., birds raised for deboning are
routinely processed at 9 pounds (4.1 kilograms) live

Will genome editing be
accepted in poultry?
Genome editing is the process where the
native genome of an organism is precisely
corrected or adjusted. This technique is
beginning to be used in human medicine
where the patient's genome is
precisely manipulated to
achieve a therapeutic
effect. In contrast,
genetically modified
organisms (GMOs)
have had transgenic
introduction of foreign
DNA sequences, which
is different from genome
editing where no foreign DNA is
introduced into the organism's genome.
The poultry geneticists interviewed for this
article all cited genome editing as a technology with potential to affect genetic selection
and breeding in the future, but they stressed
that it is uncertain whether consumers and
society will make a distinction between
genome editing and genetically modified
organisms when it comes to food-producing
animals. Genome editing has not been
employed in poultry at this time.


http://www.WATTAgNet.com/articles/9697 http://www.WATTAgNet.com

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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