Pig International - July/August 2017 - 29

PigInternational ❙ 29

Strategies to control and combat Salmonella on the farm
■

Stage to
apply control
strategies

Breeding unit. Transmission of sow to piglet is not relevant in most herds.
It is not the primary target.

■

Weaning-growing. Control at early life can cut the infection cycle,
but there is the potential of reinfection later on.

■

Finishing. The objective of control in this stage is to deliver Salmonella-free pigs to the abattoir.

Control
Salmonella

Antibiotherapy
RESISTANCE!

Hygiene
Management

Acids

Size of the grain
and processing
(pelleted/meal)

Fermented
liquid
feeding

Feeding
Vaccination
Non-digestable
oligosaccharides

Probiotics

Control strategies can be applied at different stages. Hygiene and biosecurity measures are of paramount
importance in all stages, while control strategies in feed or vaccination can be applied to reduce on-farm
levels. Antibiotherapy is not recommended, as it is not effective against multi-resistant Salmonella strains.
formic, butyric or a mix of acids at a concentration between 0.3 percent and 2 percent for prolonged periods
(between 6 and 12 weeks) could decrease the percentage
of pigs shedding Salmonella in feces.  
■ Salmonella serotype: In contrast to vaccines, the effect
of organic acids is not serotype-dependent.

tively. Cost-benefit analysis in different commercial products
revealed interesting data. Using these products at the recommended rates, FCE was improved in pigs with the acid diet
compared to the control diet, together with a better cost of
feed per Kg of live weight gain (EUR0.89 in the control feed
and EUR0.84 in the feed supplemented with the acid). 

Cost-benefit analysis of use of organic acids

Organic acids as a strategy

Despite the infection in most occasions subclinical,
there is a lower performance of infected pigs compared
to Salmonella-free pigs. In a study in grower pigs, feed
conversion efficiency (Kg/Kg) (FCE) was 1.88 and 1.66 in
Salmonella-infected and Salmonella-free animals, respec-

Organic acids are one of the strategies offered to control
and reduce Salmonella levels on the farm. The right dose and
treatment duration are essential for success, but acids need
other on-farm interventions related to hygiene, biosecurity and
management to reduce Salmonella to negligible levels. ■

Hector Argüello-Rodríguez, DVM, Ph.D., is a researcher at the Genomic and Animal Biotechnology Laboratory,
University of Córdoba, Spain. Contact e-mail: Arguello.rguez@gmail.com
July/August 2017 ❙ www.WATTAgNet.com


http://www.WATTAgNet.com

Table of Contents for the Digital Edition of Pig International - July/August 2017

Pig International - July/August 2017
Contents
Pigs and Money
Industry Happenings
World pork production to grow at a slower rate
5 ways phytogenics improve pig feed efficiency
Methionine beyond protein synthesis in growing pigs
Understanding pseudorabies in pigs leads to prevention
6 fiber insights for formulating livestock feed
Salmonella control: Do organic acids solve the problem?
How lactic fermented feed benefits pig production
How to treat iron deficiency in neonatal pigs
Products
Marketplace
Advertisers’ Index
Pig International - July/August 2017 - Pig International - July/August 2017
Pig International - July/August 2017 - Cover2
Pig International - July/August 2017 - Contents
Pig International - July/August 2017 - Pigs and Money
Pig International - July/August 2017 - Industry Happenings
Pig International - July/August 2017 - World pork production to grow at a slower rate
Pig International - July/August 2017 - 5
Pig International - July/August 2017 - 6
Pig International - July/August 2017 - 7
Pig International - July/August 2017 - 8
Pig International - July/August 2017 - 9
Pig International - July/August 2017 - 5 ways phytogenics improve pig feed efficiency
Pig International - July/August 2017 - 11
Pig International - July/August 2017 - 12
Pig International - July/August 2017 - 13
Pig International - July/August 2017 - Methionine beyond protein synthesis in growing pigs
Pig International - July/August 2017 - 15
Pig International - July/August 2017 - 16
Pig International - July/August 2017 - 17
Pig International - July/August 2017 - 18
Pig International - July/August 2017 - 19
Pig International - July/August 2017 - Understanding pseudorabies in pigs leads to prevention
Pig International - July/August 2017 - 21
Pig International - July/August 2017 - 22
Pig International - July/August 2017 - 23
Pig International - July/August 2017 - 6 fiber insights for formulating livestock feed
Pig International - July/August 2017 - 25
Pig International - July/August 2017 - Salmonella control: Do organic acids solve the problem?
Pig International - July/August 2017 - 27
Pig International - July/August 2017 - 28
Pig International - July/August 2017 - 29
Pig International - July/August 2017 - How lactic fermented feed benefits pig production
Pig International - July/August 2017 - 31
Pig International - July/August 2017 - 32
Pig International - July/August 2017 - 33
Pig International - July/August 2017 - How to treat iron deficiency in neonatal pigs
Pig International - July/August 2017 - 35
Pig International - July/August 2017 - 36
Pig International - July/August 2017 - 37
Pig International - July/August 2017 - Products
Pig International - July/August 2017 - 39
Pig International - July/August 2017 - Advertisers’ Index
Pig International - July/August 2017 - Cover3
Pig International - July/August 2017 - Cover4
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