Poultry International - February 2018 - 30

30 ❙ PoultryInternational

How broiler physiology impacts
poultry yields
The various stages of poultry processing should be correctly
aligned with the physical characteristics of a chicken to help ensure
operational success.
EDUARDO CERVANTES LÓPEZ

Understanding poultry physiology can help to make
poultry processing plants run more smoothly, and prevent some of the issues that might otherwise lead to a
decrease in yields.
This knowledge, and paying careful attention to
detail at certain key points from pre-harvest to processing, can ensure processed chicken production remains
within the parameters and rules set by each company or
relevant authority.

Feed withdrawal
Broilers normally eat every four hours, but not all
birds will eat at the same time and, with this in mind, it
is easier to understand why feed withdrawal is never 100
percent effective.

Issues with feed withdrawal need to be communicated to the
evisceration team. franz12.Bigstockphoto.com

How to reduce
bacteria during
poultry processing
www.WATTAgNet.com/
articles/31571

The success of feed withdrawal can never be consistent across the flock, irrespective of whether the withdrawal period is long or short. It is worth remembering
that, at the moment that the feeders are raised or closed,
8-12 hours prior to slaughter, some chickens will be eating, while others will be walking about or laying down,
having already eaten.
Feed, once ingested, takes four to four-and-a-half
hours to pass through the birds' system and, for this reason, it is recommended that broiler harvesting be carried
out five hours after access to feed, although not water,
has been stopped.
Prior to capture, birds should be kept active. This can
be achieved by staff walking the poultry house, but this
must be done slowly and calmly.  
If this last point is ignored, birds will panic and
attempt to escape from this source of stress, making
short flights and walking on top of each other. Intense
wing flapping can put extreme pressure on blood vessels, which may break, leading to bleeds. Wings may
be bruised as birds knock against each other or against
www.WATTAgNet.com ❙ February 2018


http://www.WATTAgNet.com/articles/31571 http://www.WATTAgNet.com

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

Poultry International - February 2018
Contents
Editor’s Comment
News
China’ s poultry industry production, sales weak in 2018
VICTAM Asia to showcase latest in feed, food industries
New German hatchery focuses on complete transparency
Refrigerated eggs versus shelves: Is one method safer?
Top 10 broiler producers in Latin America
Improve poultry welfare with outcome-based standards
How to increase broiler feed intake
Costs, benefi ts of controlled atmosphere stunning
How broiler physiology impacts poultry yields
Products
Marketplace
Ad Index
Poultry International - February 2018 - BB1
Poultry International - February 2018 - BB2
Poultry International - February 2018 - Poultry International - February 2018
Poultry International - February 2018 - Cover2
Poultry International - February 2018 - Contents
Poultry International - February 2018 - Editor’s Comment
Poultry International - February 2018 - 3
Poultry International - February 2018 - News
Poultry International - February 2018 - 5
Poultry International - February 2018 - China’ s poultry industry production, sales weak in 2018
Poultry International - February 2018 - 7
Poultry International - February 2018 - 8
Poultry International - February 2018 - 9
Poultry International - February 2018 - VICTAM Asia to showcase latest in feed, food industries
Poultry International - February 2018 - 11
Poultry International - February 2018 - New German hatchery focuses on complete transparency
Poultry International - February 2018 - 13
Poultry International - February 2018 - Refrigerated eggs versus shelves: Is one method safer?
Poultry International - February 2018 - 15
Poultry International - February 2018 - Top 10 broiler producers in Latin America
Poultry International - February 2018 - 17
Poultry International - February 2018 - Improve poultry welfare with outcome-based standards
Poultry International - February 2018 - 19
Poultry International - February 2018 - 20
Poultry International - February 2018 - 21
Poultry International - February 2018 - How to increase broiler feed intake
Poultry International - February 2018 - 23
Poultry International - February 2018 - Costs, benefi ts of controlled atmosphere stunning
Poultry International - February 2018 - 25
Poultry International - February 2018 - 26
Poultry International - February 2018 - 27
Poultry International - February 2018 - 28
Poultry International - February 2018 - 29
Poultry International - February 2018 - How broiler physiology impacts poultry yields
Poultry International - February 2018 - 31
Poultry International - February 2018 - 32
Poultry International - February 2018 - 33
Poultry International - February 2018 - Products
Poultry International - February 2018 - Marketplace
Poultry International - February 2018 - Ad Index
Poultry International - February 2018 - Cover3
Poultry International - February 2018 - Cover4
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