Poultry USA - August 2019 - 39

WATTPoultryUSA

ceca was three times more sensitive than environmental swabs. For individual birds testing, ceca or
fecal samples are the most sensitive for detection
of Salmonella due to the higher resident levels
of Salmonella compared to swabbing the cloaca
epithelial surface.

pseudolongino | BigStockPhoto.com

■ Sampling time
In addition to what samples are taken, when the
samples are taken can also influence the ability to detect
Salmonella. During broiler growout for both ISODs and
ceca sampling methods, Salmonella can be detected
at the highest frequency at about three weeks of age,
after which detection steadily declines from three to six
weeks of age. A similar trend is seen in turkeys where
the greatest number of samples are positive
for Salmonella during rearing at 14 days
of age. The frequency of positive samples
decreased after 14 days through 20 weeks.
Feed withdrawal can also influence

the ability to detect Salmonella. When broilers are
subjected to feed withdrawal, the crop empties within
six hours and the pH within the crop increases to
near neutral leading to the growth of enteropathogens such as Salmonella when present. In a study
where Salmonella negative broilers were placed on
Salmonella positive litter during feed withdrawal,
Salmonella was frequently detected (48%) from crops
and occasionally (5%) in the ceca after 12 hours.
In addition to feed withdrawal prior to processing,
restriction feeding of breeders may also impact
Salmonella proliferation and persistence. When
every-day and skip-a-day feeding programs with
broiler breeder pullets were compared, pullets that
were fed every day had a lower prevalence and shorter

SALMONELLA IS A CONSTANT
challenge for poultry producers.

August 2019 ❙ www.WATTAgNet.com

❙ 39


http://www.BigStockPhoto.com http://www.WATTAgNet.com

Poultry USA - August 2019

Table of Contents for the Digital Edition of Poultry USA - August 2019

Poultry USA - August 2019
Contents
Get ready for plant-based protein at KFC, Chick-fil-A
The poultry and egg industries’ sustainability program
Potential gains from ASF outweigh rising grain prices
How to get a processing line speed waiver
Consumers invested in animal welfare, but knowledge is limited
Lack of reliable detection technology slows PAA regulation
How sample type, analysis impact Salmonella detection
Product Review
Market Place
Ad Index
Poultry USA - August 2019 - CT1
Poultry USA - August 2019 - CT2
Poultry USA - August 2019 - Poultry USA - August 2019
Poultry USA - August 2019 - Cover2
Poultry USA - August 2019 - Contents
Poultry USA - August 2019 - Potential gains from ASF outweigh rising grain prices
Poultry USA - August 2019 - 3
Poultry USA - August 2019 - 4
Poultry USA - August 2019 - 5
Poultry USA - August 2019 - 6
Poultry USA - August 2019 - 7
Poultry USA - August 2019 - 8
Poultry USA - August 2019 - 9
Poultry USA - August 2019 - 10
Poultry USA - August 2019 - 11
Poultry USA - August 2019 - 12
Poultry USA - August 2019 - 13
Poultry USA - August 2019 - How to get a processing line speed waiver
Poultry USA - August 2019 - 15
Poultry USA - August 2019 - 16
Poultry USA - August 2019 - 17
Poultry USA - August 2019 - 18
Poultry USA - August 2019 - 19
Poultry USA - August 2019 - Consumers invested in animal welfare, but knowledge is limited
Poultry USA - August 2019 - 21
Poultry USA - August 2019 - 22
Poultry USA - August 2019 - 23
Poultry USA - August 2019 - 24
Poultry USA - August 2019 - 25
Poultry USA - August 2019 - 26
Poultry USA - August 2019 - 27
Poultry USA - August 2019 - 28
Poultry USA - August 2019 - 29
Poultry USA - August 2019 - Lack of reliable detection technology slows PAA regulation
Poultry USA - August 2019 - 31
Poultry USA - August 2019 - 32
Poultry USA - August 2019 - 33
Poultry USA - August 2019 - 34
Poultry USA - August 2019 - 35
Poultry USA - August 2019 - 36
Poultry USA - August 2019 - 37
Poultry USA - August 2019 - How sample type, analysis impact Salmonella detection
Poultry USA - August 2019 - 39
Poultry USA - August 2019 - 40
Poultry USA - August 2019 - 41
Poultry USA - August 2019 - Product Review
Poultry USA - August 2019 - 43
Poultry USA - August 2019 - Ad Index
Poultry USA - August 2019 - Cover3
Poultry USA - August 2019 - Cover4
http://www.wattpoultryusa-digital.com/201908
http://www.wattpoultryusa-digital.com/201907
http://www.wattpoultryusa-digital.com/201906
http://www.wattpoultryusa-digital.com/201905
http://www.wattpoultryusa-digital.com/201904
http://www.wattpoultryusa-digital.com/201903
http://www.wattpoultryusa-digital.com/201902
http://www.wattpoultryusa-digital.com/201901
http://www.wattpoultryusa-digital.com/201812
http://www.wattpoultryusa-digital.com/201811
http://www.wattpoultryusa-digital.com/201810
http://www.wattpoultryusa-digital.com/201809
http://www.wattpoultryusa-digital.com/201808
http://www.wattpoultryusa-digital.com/201807
http://www.wattpoultryusa-digital.com/201806
http://www.wattpoultryusa-digital.com/201805
http://www.wattpoultryusa-digital.com/201804
http://www.wattpoultryusa-digital.com/201803
http://www.wattpoultryusa-digital.com/201802
http://www.wattpoultryusa-digital.com/201801
http://www.wattpoultryusa-digital.com/201712
http://www.wattpoultryusa-digital.com/201711
http://www.wattpoultryusa-digital.com/201709
http://www.wattpoultryusa-digital.com/201710
http://www.wattpoultryusa-digital.com/201708
http://www.wattpoultryusa-digital.com/201707
http://www.wattpoultryusa-digital.com/201706
http://www.wattpoultryusa-digital.com/201705
http://www.wattpoultryusa-digital.com/201704
http://www.wattpoultryusa-digital.com/201703
http://www.wattpoultryusa-digital.com/201702
http://www.wattpoultryusa-digital.com/201701
http://www.wattpoultryusa-digital.com/201612
http://www.wattpoultryusa-digital.com/201611
http://www.wattpoultryusa-digital.com/201610
http://www.wattpoultryusa-digital.com/201609
http://www.wattpoultryusa-digital.com/201608
http://www.wattpoultryusa-digital.com/201607
http://www.wattpoultryusa-digital.com/201606
http://www.wattpoultryusa-digital.com/201605
http://www.wattpoultryusa-digital.com/201604
http://www.wattpoultryusa-digital.com/201603
http://www.wattpoultryusa-digital.com/201602
http://www.wattpoultryusa-digital.com/201601
http://www.wattpoultryusa-digital.com/201512
http://www.wattpoultryusa-digital.com/201511
http://www.wattpoultryusa-digital.com/201510
http://www.wattpoultryusa-digital.com/201509
http://www.wattpoultryusa-digital.com/201508
http://www.wattpoultryusa-digital.com/201507
http://www.wattpoultryusa-digital.com/201506
http://www.wattpoultryusa-digital.com/201505
http://www.wattpoultryusa-digital.com/201504
http://www.wattpoultryusa-digital.com/201503
http://www.wattpoultryusa-digital.com/201502
http://www.wattpoultryusa-digital.com/201501
http://www.wattpoultryusa-digital.com/201412
http://www.wattpoultryusa-digital.com/201411
http://www.wattpoultryusa-digital.com/201410
http://www.wattpoultryusa-digital.com/201409
http://www.wattpoultryusa-digital.com/201408
http://www.wattpoultryusa-digital.com/201407
http://www.wattpoultryusa-digital.com/201406
http://www.wattpoultryusa-digital.com/201405
http://www.wattpoultryusa-digital.com/201404
http://www.wattpoultryusa-digital.com/201403
http://www.wattpoultryusa-digital.com/201402
http://www.wattpoultryusa-digital.com/201401
http://www.wattpoultryusa-digital.com/201312
http://www.wattpoultryusa-digital.com/201311
http://www.wattpoultryusa-digital.com/201310
http://www.wattpoultryusa-digital.com/201309
http://www.wattpoultryusa-digital.com/201308
http://www.wattpoultryusa-digital.com/201307
http://www.wattpoultryusa-digital.com/201306
http://www.wattpoultryusa-digital.com/201305
http://www.wattpoultryusa-digital.com/201304
http://www.wattpoultryusa-digital.com/201303
http://www.wattpoultryusa-digital.com/201302
http://www.wattpoultryusa-digital.com/201301
http://www.wattpoultryusa-digital.com/201212
http://www.wattpoultryusa-digital.com/201211
http://www.wattpoultryusa-digital.com/201210
http://www.wattpoultryusa-digital.com/201209
http://www.wattpoultryusa-digital.com/201208
http://www.wattpoultryusa-digital.com/201207
http://www.wattpoultryusa-digital.com/201206
http://www.wattpoultryusa-digital.com/201205
http://www.wattpoultryusa-digital.com/201204
http://www.wattpoultryusa-digital.com/201203
http://www.wattpoultryusa-digital.com/201202
http://www.wattpoultryusa-digital.com/201201
http://www.nxtbookMEDIA.com