Pig International - November 2017 - 20

20 ❙ PigInternational

Chemistry of organic acids in
antibiotic-free animal diets
There are a great number of available organic acids on the market,
and understanding their chemistry is the only way to select the right
one for each animal feed.
BY EFSTRATIA PAPANIKOU AND IOANNIS MAVROMICHALIS

Organic acids have been used extensively since the time growth-promoting antibiotics were banned in
the EU. They constitute one of the
most widely accepted alternatives to
traditional antimicrobial agents, but
their effectiveness depends on their
potency, concentration, synergistic
effects with other organic acids and
other additives, and stomach pH
that fluctuates with age.
Despite their widespread use and
very extensive technical and research
literature on the subject, there is still
a considerable gap in our knowledge
that goes beyond the classic doseresponse effect as these compounds
require knowledge of basic chemistry before using them correctly.

What are these
organic acids?

Organic acids like citric acid are present in everyday foods and are potent
against pathogenic bacteria based on a dose versus pathogen load relationship.
| Prakrong Lim, Dreamstime

Organic acids exist in most
vegetable matter we consume every day. For example, citric acid, a
common organic acid, is present in
most fruits and in great quantities
in citrus fruits. Malic acid is found
in apples, whereas the common
vinegar is acidic acid. By nature,

www.WATTAgNet.com ❙ November/December 2017


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Table of Contents for the Digital Edition of Pig International - November 2017

Pig International - November 2017
Contents
Pigs and Money
Industry Happenings
What you should know about gastric ulcers in pigs
Business, science behind phytogenics in pig feeds
Mastitis in sows: A perennial problem
Understanding chemistry of organic acids in antibiotic-free diets
How piglet gastric pH development affects gut health
Debunking trace mineral myths in animal nutrition
Animal feed formulation: Fiber matrix secrets revealed
World’s top 40 pork processors
World’s top 40 pork producers
5 programs pig producers don’t want to miss at IPPE 2018
Products
Marketplace
Advertisers’ Index
Pig International - November 2017 - BB1
Pig International - November 2017 - BB2
Pig International - November 2017 - Pig International - November 2017
Pig International - November 2017 - Cover2
Pig International - November 2017 - Contents
Pig International - November 2017 - Pigs and Money
Pig International - November 2017 - Industry Happenings
Pig International - November 2017 - What you should know about gastric ulcers in pigs
Pig International - November 2017 - 5
Pig International - November 2017 - 6
Pig International - November 2017 - 7
Pig International - November 2017 - Business, science behind phytogenics in pig feeds
Pig International - November 2017 - 9
Pig International - November 2017 - 10
Pig International - November 2017 - 11
Pig International - November 2017 - 12
Pig International - November 2017 - 13
Pig International - November 2017 - Mastitis in sows: A perennial problem
Pig International - November 2017 - 15
Pig International - November 2017 - 16
Pig International - November 2017 - 17
Pig International - November 2017 - 18
Pig International - November 2017 - 19
Pig International - November 2017 - Understanding chemistry of organic acids in antibiotic-free diets
Pig International - November 2017 - 21
Pig International - November 2017 - 22
Pig International - November 2017 - 23
Pig International - November 2017 - How piglet gastric pH development affects gut health
Pig International - November 2017 - 25
Pig International - November 2017 - 26
Pig International - November 2017 - 27
Pig International - November 2017 - Debunking trace mineral myths in animal nutrition
Pig International - November 2017 - 29
Pig International - November 2017 - 30
Pig International - November 2017 - 31
Pig International - November 2017 - Animal feed formulation: Fiber matrix secrets revealed
Pig International - November 2017 - 33
Pig International - November 2017 - 34
Pig International - November 2017 - 35
Pig International - November 2017 - World’s top 40 pork processors
Pig International - November 2017 - World’s top 40 pork producers
Pig International - November 2017 - 5 programs pig producers don’t want to miss at IPPE 2018
Pig International - November 2017 - Products
Pig International - November 2017 - Advertisers’ Index
Pig International - November 2017 - Cover3
Pig International - November 2017 - Cover4
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