JSR News

Advancements in biosecurity continue to minimise health risks for JSR customers

14th May 2013

Continual advancements and vigilance in biosecurity at JSR’s AI studs mean more producers than ever are benefiting from the high health status of JSR’s animals and semen.

There are a vast number of measures in place at the company’s studs and nucleus units that are designed to protect their own herd animals as well as the businesses of customers.
Boars are regularly introduced to the studs and are resident on average for 12 months. With such a frequent intake and large turnover of stock it’s vital that screening is demanding in order to avoid the introduction of any disease that could be passed through semen such as PRRS.
Stringent biosecurity at JSR begins on the organisation’s nucleus units according to the company’s UK sales director Giles Christie.

“The nucleus units are all high health and host regular veterinary visits, undergo frequent blood sampling and thorough abattoir surveillance,” said Giles. “All of this helps to inspire confidence in our customers and ensures that a high health status is established in the early stages of an animal’s life”
The boars are selected for AI based on genetic merit and customer demand at the stud and once chosen are placed into a 6 week isolation, which operates the same vigorous biosecurity measures as the nucleus herds.
“While the animals are in the isolation areas, the nucleus units are checked again for signs of disease and the AI boars are blood tested for Classical Swine Fever, Brucellosis and Aujesky’s Disease before they can start the isolation process. 
In the last 15 days of the 30-day pre-stud isolation, during which all boars are assessed daily, further blood samples are taken and the animals are tested again for Brucellosis and Aujesky’s Disease plus PRRS.  Boars must pass these tests in order to progress onto the stud.  Any indication of PRRS would mean immediate slaughter and a thorough investigation.

When on the stud, animals are inspected weekly by a vet, who carries out a thorough appraisal on each boar.  This way any health concerns can be addressed as soon as they’re spotted.  In addition to the weekly appraisal programme, 10% of the animals deemed as representative of the entire stud population are blood sampled for PRRS and the samples are also put through statutory tests required by Defra.
During a 12 month period JSR will typically run over 50,000 health tests at the AHVLA government laboratory at Weybridge verifying the health of their nucleus herds, AI studs and batches of animals bound for our customers and demonstrates the commitment JSR make to health and biosecurity.


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