Poultry International - January 2017 - 22

22 ❙ PoultryInternational
YEARS

FUTURE OF POULTRY BREEDING, BALANCED GENETIC SELECTION
weight or more. Along with these larger birds, processors are seeing increases in white striping and woody
breast muscle myopathies.
All breeders report gathering information on several
meat quality traits in birds at processing to gather information about individual birds and families.
According to Dr. Derek Emmerson, vice president
of research and development at Aviagen, "These are
combined with indirect measures on selection candidates to identify birds with the condition while they are
still alive and provide a very accurate way to identify

Selecting the broiler of tomorrow

Given all the considerations of selecting for welfare
traits and efficiency, breeders were asked if birds raised
for deboning would continue to get larger in the future.
"There might be a physiological limit or at least a
physiological optimum, which most likely has not been
reached yet," said Yves Jego, director of research and
development at Hubbard. "It is not just a matter of what
the physiological limit will be, as these kind of extremely
heavy broilers need to be grown under completely different management (growth profile, feed, lighting, housing,
density, etc.) to get the maximum saleable final product."
"Short term - yes. Long term - it depends,"
Abrahamsen said. "There are metabolic limits that have
been reached at some of the heavier weights, but we had
similar issues with ascites in the past. The integrations
learned how to manage or limit the issues, while the
breeding companies worked on identifying families that
were healthier. These same principles apply
to metabolic challenges that are faced today
Primary breeders began raising selection lines in a variety
at heavier weights or faster growth rates."
of housing situations and nutritional regimes decades ago so
"Selection for welfare traits including leg
that the industry would be prepared for changes in how birds
strength, gait, foot pad integrity and cardiomight be housed and fed in the future.
pulmonary health provides a better physiological foundation to support field livability
and bird welfare," Emmerson said. "In addiwhich individuals are developing wooden breast. We
tion, pedigree lines are selected across a range of different
have also increased our emphasis on traits such as carenvironments including drug-free production with expodiopulmonary function to provide a better physiologisure to common enteric challenges. This has allowed us to
cal foundation to support improved meat quality and
develop breeds which are adapted to processing at higher
reduce the impact of one of the important risk factors
weights and under antibiotic-free conditions."
for meat quality, namely, hypoxia or tissue ischemia."
"The real question of the upper limit for deboning
The root causes of these muscle myopathies is not
birds is a broader one and will be determined by a number
fully understood, but researchers are actively looking
of different factors e.g., market factors, product use and
for solutions.
consumer acceptance." ■
Dr. Mitch Abrahamsen, senior vice president
of research and development, Cobb-Vantress, said:
This is the first article in WATT Global Media's 100-year
"Cobb currently works with researchers on three
anniversary series, which looks at key drivers that will
different continents to find solutions, both short term
shape the future of the worldwide poultry industry. The
and long term, to meat quality issues that are seen in
next article in the series will explore how innovations in
the industry."
seed technology will benefit the poultry industry.
www.WATTAgNet.com ❙ January 2017


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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