Pig International - January/February 2017 - 20

20 ❙ PigInternational
BOOSTING PIGLET IMMUNITY

Piglet immunity
Exposure
to external
Ex
environment
stimulates
en
piglet's
immune system.
pg
pi
Day 70 of
gestation

Piglet is partially
immunocompetent

Piglet immunization
continues after birth

Birth

Epitheliochorial placenta does
not allow maternal immune transfer.
Piglet generates its own antibodies.

Sow supplies
pp
plilies
ies IgG
and IgA antibodies
via colostrum.

Piglet is pr
protected
protec
by maternal
antibodies.

Immunocompetent piglets are highly dependent on the globulin content of colostrum.
However, these antibodies are not enough to adequately protect it after birth. This has led to a range
of different vaccination strategies for sows in order to
boost the generation and transmission of antibodies via
the colostrum, which is consumed by piglets after birth.
The piglet is highly dependent on the colostrum for
protection, and piglets that die right after birth have a
lower serum level of antibodies.

Colostrum: the richest source of
immunoglobulins for piglets
The level of immunoglobulins in the colostrum is 60
times higher than in milk. About 65 to 90 percent of these
immunoglobulins consist of the IgG type, which provides

systemic protection. During lactation, IgG immunoglobulins are progressively replaced by IgA, which function to
protect the intestinal mucus of the piglet.
Given the numerous factors influencing the generation and
assimilation of colostrum, commercial swine producers have
implemented a series of strategies. One such strategy is immune-adaptation. This is achieved by the controlled exposure
of sows during gestation, training the sow's immune system
to recognize the antigens and respond by producing antibodies, which can then be transferred to piglets via the colostrum.
Vaccinations are given to first-time mothers to acclimatize
them to the bio-system of the farm. Further vaccinations are
employed during gestation to stimulate antibody generation
that will be passed on to the piglet through colostrum. 

Main vaccinations for reproductive sows
Aujeszky (Herpes virus)

20-30 days before birth

Atrophic rhinitis (Bordetella
15-20 days before birth
bronchiseptica, Pasteurella multocida)
Colibacilosis (E. coli)

40 days before birth with an additional vaccination 25 days before birth

PRRSV

Mid-way through gestation, strain depends on the presence at the farm

Mycoplasma (Mycoplasma
hyopneumoniae)

According to the infective pressure of PRRSV, at 70 and 100 days of
gestation, in first-time mothers, plus piglets also vaccinated later

Note: According to local epidemiological specificities: Glasser and Parovirus

The various vaccination programs for sows depend on the geographical area and are aimed at boosting the
antibody content of colostrum.
www.WATTAgNet.com ❙ January/February 2017


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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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