Pig International - November 2017 - 10

10 ❙ PigInternational
PHYTOGENICS IN PIG FEEDS

Feed conversion rate improvements over control groups
% better

Source: EW Nutrition

12

8
5
2

6

4 3

8 7

10

9

6
3

3
2 3

2

6

4
1 11

2011

2011

2011

2011

2011

2011

2012

2012

2012

2012

2012

2012

2012

2012

2012

2012

2012

2012

2012

2013

2013

2014

2014

2015

0
GER
114
days
Field

GER
115
days
Field

GER
105
days
Field

GER
101
days
Field

GER
108
days
Field

USA
96
days
Sci

BRA
110
days
Field

BRA
110
days
Field

BRA
110
days
Field

BRA
110
days
Field

BRA
110
days
Field

BRA
110
days
Field

BRA
110
days
Field

BRA
110
days
Field

BRA
110
days
Field

BRA
110
days
Field

BRA
110
days
Field

GER
119
days
Sci

GER
116
days
Field

GER
104
days
Field

GER
119
days
Field

GER
114
days
Field

PER
100
days
Field

CZE
122
days
Field

Average

11

12 12

This table show field results over many years using a commercial phytogenic product in finishing pigs.
regulated and became standardized,
problems did not disappear. Moving
from crude sources to refined compounds revealed another weak point
in the application of this additive
in pig feeds: they are extremely
volatile, and when in purified forms
they tend to escape even further.
Considering that essential oils are
used in aromas, one can understand
why they did not take long to escape
feed, especially when such material
was exposed to heat and moisture
that accelerated the deterioration

much from it. Of course, this is an
oversimplification, or even a dramatization of the issue, but it serves
to illustrate one of the fundamental
hurdles in the science and business
of this additive.

Overblown expectations
Lead by claims based on folklore
medicine and human nutrition (or
rather cuisine), users of earlier and
even modern phytogenic additive
products are often disappointed by
results. In human folklore medicine,

Synergistic effects

Read more: How the pig industry perceives

phytogenic feed additives,
www.WATTAgNet.com/articles/30281
and evaporation of essential oils. As
such, results with pigs were rather
disappointing: feeds smelled great,
but piglets did not seem to benefit

modern medicinal means (drugs such
as antibiotics). Again, from medieval
through early modern times, when
refrigerators did not exist, certain
spices and herbs were used (and some
still are in preserved foods) to slow
down (or mask) food spoilage. Some
essential oils have strong antibacterial,
antiviral and antifungal properties,
but their effect is weak and not as effective as modern preservatives. Still,
they are used in preserved foods, but
within the above context, understanding their limitations.

many herbs and spices are given
curative or prophylactic properties,
but their effect is rather weak. Today
these are considered supplementary to

From the above, it is evident
that one would not be unreasonable to expect a much-improved
animal response when phytogenics were used in conjunction with
other antimicrobial compounds.
Indeed, when this was tested, it
became apparent that as in the case

www.WATTAgNet.com ❙ November/December 2017


http://www.WATTAgNet.com/articles/30281 http://www.WATTAgNet.com

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
http://www.piginternational-digital.com/201711
http://www.piginternational-digital.com/201710
http://www.piginternational-digital.com/201709
http://www.piginternational-digital.com/201707
http://www.piginternational-digital.com/201705
http://www.piginternational-digital.com/201703
http://www.piginternational-digital.com/201701
http://www.piginternational-digital.com/201611
http://www.piginternational-digital.com/201610
http://www.nxtbook.com/nxtbooks/watt/pigi_201609
http://www.piginternational-digital.com/201607
http://www.piginternational-digital.com/201605
http://www.piginternational-digital.com/201603
http://www.piginternational-digital.com/201601
http://www.piginternational-digital.com/201511
http://www.piginternational-digital.com/201510
http://www.nxtbook.com/nxtbooks/watt/pigi_201509
http://www.piginternational-digital.com/201507
http://www.piginternational-digital.com/201505
http://www.piginternational-digital.com/201503
http://www.piginternational-digital.com/201501
http://www.piginternational-digital.com/201411
http://www.piginternational-digital.com/201410
http://www.piginternational-digital.com/201409
http://www.piginternational-digital.com/201407
http://www.piginternational-digital.com/201405
http://www.piginternational-digital.com/201403
http://www.piginternational-digital.com/201401
http://www.nxtbook.com/nxtbooks/watt/pigi_201311
http://www.piginternational-digital.com/201310
http://www.piginternational-digital.com/201309
http://www.piginternational-digital.com/201307
http://www.piginternational-digital.com/201305
http://www.piginternational-digital.com/201303
http://www.piginternational-digital.com/201301
http://www.piginternational-digital.com/201211
http://www.piginternational-digital.com/201210
http://www.piginternational-digital.com/201209
http://www.piginternational-digital.com/201207
http://www.piginternational-digital.com/201205
http://www.piginternational-digital.com/201203
http://www.piginternational-digital.com/201201
http://www.nxtbookMEDIA.com