Ingelvac PRRS KV - Reduces reproductive loss due to PRRS
PRRS is now endemic in the UK. The disease infects all herd types including those with a high health status and both indoor and outdoor units, irrespective of size. It can enter the herd by various routes, e.g. movement of carrier pigs, airborne transmission (up to 2 miles), contaminated vehicles, equipment or clothing.
The disease causes impairment of reproductive function in sows as well as respiratory disease
in growing pigs.
Reproductive PRRS is associated with
abortions, weak and stillborn piglets,
early farrowing and a reduction in reproductive
performance. Infected nursery piglets are
weak and prone to secondary infections. Many farms infected with PRRS considered
to be largely under control, have still to
recover the reproductive performance they
experienced before PRRS arrived in the UK.
Until recently, there has been no vaccine
available to protect farmers from the
reproductive losses associated with PRRS.
Now, there is Ingelvac PRRS KV.
Ingelvac PRRS KV helps reduce infection rates
(stabilise the herd)
Once the PRRS virus has entered a herd,
animals that become infected show sustained
viral shedding and short lived immunity. Once
a herd is infected, the infection may persist for
a number of reasons:
- A few months after infection, sows produce
antibodies against PRRS that protect them
from new infections. However, after a few
months, the level of antibodies decreases
thus making previously resistant animals
susceptible to re-infection.
- It may take up to a year in large breeding
herds for the infection to spread around the
farm. This means that at any one time there
will be groups (sub-populations) of animals
in the farm that have become newly infected
and, as a result, are shedding the virus.
Ingelvac PRRS KV introduced as part of
a disease control programme helps
eliminate susceptible sub populations of
- Gilts introduced into an
infected herd are unlikely to
have any immunity to PRRS
and will therefore be
susceptible to infection
circulating in the herd.
Gilts vaccinated with Ingelvac PRRS KV
before they enter the herd are better equipped
to resist circulating virus.
- Maternal antibodies passed on to piglets are
short-lived, leaving them susceptible to
virus transmitted from older groups of
previously infected growers.
Sows vaccinated with Ingelvac PRRS KV
produce fewer infected piglets and pass on
better colostral immunity.
Control through vaccination and
proper herd management
Eradication of PRRS from a breeding herd
requires complete or partial depopulation
followed by extensive disinfection measures,
and so is not always the most cost effective
method of re-establishing a negative status.
Any repopulated herd is then at risk of
re-infection due to the endemic nature of the
disease. Effective management of PRRS is the
most likely way of achieving successful control.
Your veterinary surgeon may already be
working with you to run a multi-step PRRS
control programme for your individual farm.
Such management programmes may differ
from farm to farm since not all farms? needs
are the same. There are, however, some basic
rules that can be applied generally to all pig
farms, regardless of size. They are:
- High standard general hygiene.
This applies not only to the animals and
their housing but also to the staff on the
farm, e.g. disinfection of footwear and
change of clothing from unit to unit.
Reproductive PRRS is
associated with abortions,
weak and stillborn piglets,
early farrowing and
a reduction of other
- Herd-wide diagnostics - to determine the
pattern of PRRS infection in your herd.
Diagnostics are imperative in determining
the relevance of the disease to the clinical
picture being presented and to help
understand what is happening on your
- Strict piglet management programme.
Good husbandry, no retention of
underweight piglets, no transfer of animals
between different age groups, optimal
occupation densities and litter balancing no
later than 24 hours after farrowing.
- Gilt acclimatisation and breeding-herd
stabilisation. Until now, this has been
the most important of all disease control
measures since the introduction of
susceptible gilts to a PRRS-positive herd
can have disastrous consequences. Equally,
actively infected gilts will provide additional
sources of infection for the rest of the herd.
A 60-90 day, off-site quarantine period
makes good management practice and
provides the ideal opportunity to vaccinate
pigs with Ingelvac PRRS KV, so ensuring
more uniform immunity on entry to the
Porcine Reproductive and Respiratory Syndrome in a pig
breeder operation is a challenging disease that needs to
be managed by the farmer and the veterinarian in a
concerted manner. Once infection has occurred and the
PRRS status has been diagnosed, a multi-step procedure
should be established to meet the individual farm?s
needs. The ultimate objective of these efforts has to be
to stabilise the disease occurring on site in order to
regain the reproductive performance that the farm had
before the infection.
Ingelvac PRRS KV is a killed vaccine based on a
European strain and will be an essential part of most
PRRS control programmes. It is administered to sows
and gilts to reduce reproductive loss due to PRRS such
as premature farrowing, stillborn and mummified piglets,
so leading to the production of more live and weaned
piglets. The weaning-to-service interval is also reduced.
In addition, Ingelvac PRRS KV helps stabilise the immune
status of the herd, so reducing circulation of the virus.
Legal category: POM
Consult your veterinary surgeon.
Further information is available here.
Boehringer Ingelheim Vetmedica, Ellesfield Avenue, Bracknell, Berkshire RG12 8YS.
Telephone: 0800 587 7028 Email: email@example.com
Boehringer Ingelheim Vetmedica is a division of Boehringer Ingelheim Limited.