Pig International - January/February 2017 - 14

14 ❙ PigInternational

How to
quantify health
status in farm
animals
Correct assessment of health status
leads to timely disease prevention
and better nutritional programs
that maximize profitability.
BY IOANNIS MAVROMICHALIS

Acute-phase proteins
Acute-phase proteins, produced in the liver in
response to infection and cytokine activity, are wellcharacterized but are also influenced by factors other
than health status. Williams et al. (1997) fed pigs (6
to 112 kg body weight) of different health statuses five
different protein levels. As expected, poor health status greatly increased circulating concentrations of the
acute-phase protein, alpha-1 acid glycoprotein (AGP).
www.WATTAgNet.com ❙ January/February 2017

MaXPdia | iStockPhoto.com

The goal of quantifying health status, in the context of
nutrition, is to provide input data on which decisions
regarding diet changes can be based. Of course this assumes that diet changes can be practically implemented in a timely manner upon the detection of a change
in health status. If an acute health challenge occurs
the day after a 3-ton feed tank is filled, any dietary
changes will have to come in the form of water-soluble
supplements and hand-feeding of pigs.
Thus, many practical considerations related to feed
manufacturing and delivery must be considered. It
also is important to distinguish between "acute" and
"chronic" health challenges. Acute health challenges
lasting a short time are difficult to counter through
dietary changes. On the other hand, chronic health
challenges are those that tend to persist in production
systems routinely for periods that may extend during
the entire growing phase. Therefore, quantifying health
status, in the context of what nutritional changes can
be made to improve health status and growth, relates
to the degree of chronic health challenge versus acute
health challenge. Therapeutic strategies are more appropriate for acute challenges.


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Table of Contents for the Digital Edition of Pig International - January/February 2017

Pig International - January/february 2017
Contents
Managing livestock antibiotic resistance with diagnostics
How to quantify health status in farm animals
6 major piglet diarrhea causes and their management
Boosting piglet immunity with colostrum
Practical grinding guidelines for pig feeds
How to train gilts for electronic sow feeding systems
Fermented liquid pig feed benefits outweigh drawbacks
5 new smart farming pig products from EuroTier
VIV Asia 2017 to represent entire animal protein chain
Pigs and Money
Industry Happenings
Products
Marketplace
Pig International - January/February 2017 - Pig International - January/february 2017
Pig International - January/February 2017 - Cover2
Pig International - January/February 2017 - Contents
Pig International - January/February 2017 - Pigs and Money
Pig International - January/February 2017 - Industry Happenings
Pig International - January/February 2017 - 5 new smart farming pig products from EuroTier
Pig International - January/February 2017 - 5
Pig International - January/February 2017 - 6
Pig International - January/February 2017 - 7
Pig International - January/February 2017 - 8
Pig International - January/February 2017 - 9
Pig International - January/February 2017 - Managing livestock antibiotic resistance with diagnostics
Pig International - January/February 2017 - 11
Pig International - January/February 2017 - 12
Pig International - January/February 2017 - 13
Pig International - January/February 2017 - How to quantify health status in farm animals
Pig International - January/February 2017 - 15
Pig International - January/February 2017 - 6 major piglet diarrhea causes and their management
Pig International - January/February 2017 - 17
Pig International - January/February 2017 - Boosting piglet immunity with colostrum
Pig International - January/February 2017 - 19
Pig International - January/February 2017 - 20
Pig International - January/February 2017 - 21
Pig International - January/February 2017 - 22
Pig International - January/February 2017 - VIV Asia 2017 to represent entire animal protein chain
Pig International - January/February 2017 - Practical grinding guidelines for pig feeds
Pig International - January/February 2017 - 25
Pig International - January/February 2017 - 26
Pig International - January/February 2017 - 27
Pig International - January/February 2017 - How to train gilts for electronic sow feeding systems
Pig International - January/February 2017 - 29
Pig International - January/February 2017 - 30
Pig International - January/February 2017 - 31
Pig International - January/February 2017 - Fermented liquid pig feed benefits outweigh drawbacks
Pig International - January/February 2017 - 33
Pig International - January/February 2017 - 34
Pig International - January/February 2017 - Products
Pig International - January/February 2017 - Marketplace
Pig International - January/February 2017 - Cover3
Pig International - January/February 2017 - Cover4
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