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“We know that vaccinating can decrease the amount of viruses in the air, so vaccination is a good mechanism to prevent airborne transmission” Swine veterinary consultant Dr. Carmen Alonso in Spain picks out lessons from her detailed studies of air samples inside and outside farms suffering an outbreak of PRRS, influenza A or porcine epidemic diarrhoea --- as well as poultry sites with highly pathogenic avian influenza.
Rutger Jansen
“Our recent work demonstrated the presence of the PCV-3 genome within mild-to moderate histological lesions of aborted fetuses.
In this video Dr. Mike Murtaugh discusses vaccine cross-protection on various PCV2 strains: PCV2a, PCV2b & PCV2d. He also talks about the outbreaks of PCVAD and how correct usage of the vaccine is key.
Prof Joaquim Segalés and Dr Oliver Duran Porcine circovirus type 2 (PCV2) was initially detected in the late 1990s in North America and Europe associated with a post weaning multisystemic wasting syndrome in pigs.
Greg Stevenson
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The highest level of reproductive performance will be found on farms where feed intake is adjusted to the need of each individual sow. For this reason it is necessary to have a farm-specific feeding regime where the body condition of each individual sow pre-farrowing is documented and feeding adjusted accordingly on a sow by sow basis.
Recondition skinny sows during gestation
Increase the quantity of feed from d85 of gestation onwards: this will maximise the glycogen reserves of the newly born piglets
Ensure farm-specific vaccination schemes (in collaboration with herd vet) are complied with to result in: Stable immunity of sows as well as their piglets via colostrum-intake Optimal embryonic development
Although there are few externally visible changes in gestating sows, it is during this time that physiological preparation is made for a successful suckling period. The following factors need to be considered.
In hyperprolific sows with the potential to produce large litters, gestation length will typically last for 3 months, 3 weeks and 3 to 5 days. The more foetuses present, the less room there is for adhesion of the placenta of each individual pig to the uterine wall. To facilitate maximal embryonic development, it is important that the sow is optimally nourished prior to insemination. Also it is important to recognise and minimise stress factors such as fluctuations in environmental temperature, social stress such as fighting and exposure to toxins and infections e.g. PRRS. In hyperprolific sows particularly, these factors have significant negative impact on the forthcoming gestation.
Health issues of animals in nursery and finishing are not only caused by acute infections with bugs. Frequently they are caused by problems during the suckling period. In this booklet you will earn, how to recognise litters at risk, to judge the signals correctly and how to promote the health of the animals through targeted actions.