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Posts Tagged ‘PEDvON’

An Industry Advisory from OMAF/MRA March 6:

Porcine Epidemic Diarrhea Virus

PEDv continues to be detected on farms and at processors, transporters and assemblers at a low level.  This indicates 1) the virus is still circulating and is an ongoing risk, and 2) it is being managed through the existing collective efforts and precautions. The cooperation of all levels of industry and government has been essential in minimising the impacts of PED to the Ontario pork industry.  Vigilance and strong biosecurity at the farm level, diligent cleaning and disinfection by transporters, renderers, processors and other service providers, and changes to the flow of animals have all resulted in a relatively small number of cases compared to many affected US states.

PED has become established in the United States, and other pathogens like Delta coronavirus present new threats.  The efforts made to prevent the spread of PED must continue as regular business practices as the industry manages these risks and moves forward. Growing Forward 2 and OMAF funding to Ontario Pork will continue to strengthen efforts in the areas of greatest risk and provide the necessary infrastructure and education to help meet these challenges.

PED is considered an emerging significant disease in Ontario, and veterinarians are still required to report suspect cases to OMAF under the Animal Health Act. OMAF will continue to cover the cost of diagnostic testing of clinical suspects at the Animal Health Laboratory until further notice, and will continue to offer support to veterinarians and their clients in the management of PED cases.

Testing of non-clinical or environmental samples is not encouraged and will not be covered by OMAF.  Such testing on its own does not give a valid indication of PEDv status and should not be used to inform decision-making by producers, veterinarians or service providers.  Conducting environmental testing as part of a monitoring program is at the discretion of individual businesses and sample submission should be discussed with the AHL.

For further information please contact the Ontario Ministry of Agriculture and Food at 1-877-424-1300, or Ontario Pork at 1-877-ONT-PORK.

Resources on PED prevention and management are available from OMAF at www.ontario.ca/swine.

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The impact of PED on nursing pigs is well known.  But producers often ask “What about weaned pigs?” The following answer is from the OPIC PED resources website:

Once pigs are weaned, the mortality rate from PED virus plummets. When not complicated by other diseases, pigs in nursery-finisher stages generally recover in about a week. The rumors of severe disease or high mortality in weaned pigs usually involve co-infections with salmonella or hemolytic E. coli or other risk factors associated with the environment or feeding practices.

1. PED virus acting alone should not be a large contributor to mortality in weaned pigs; PED virus would be expected to rob 3-7 days in growth and performance measures.

2. Consult a veterinarian and get an accurate diagnosis if disease impact is greater than expected. There likely are other factors contributing.

Note: For updates, advisories, and PED resources, visit www.ontario.ca/swine

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If PED does get onto a farm, the first question is: “What can I do to decrease the impact?” The following answer comes from the OPIC PED resources website:

Always consult a veterinarian for current advice since the “best practices” for PED virus control are still evolving. Useful concepts derived from control of a similar disease, transmissible gastroenteritis (TGE), suggest:

1. Expose all sows to the virus as rapidly and uniformly as possible to establish “herd immunity” as quickly as possible.

2. Wean piglets early/as soon as possible: Maldigestion and osmotic impact of milk diet will worsen diarrhea and dehydration.

3. Provide water, electrolytes, alternative nutrition and supportive care.

Take home messages:

1. No one knows what the impact of PED virus will be this fall, winter or in the coming year(s). Stay informed and communicate with your herd veterinarian.

2. Scrupulously executed biosecurity practices at sow farms will be critical to prevent introduction of PED virus. Anything that has been near a pig or pig feces is a potential source of introduction of virus. Biosecurity practices likely will need to be modified; PED virus is not the same as porcine reproductive and respiratory syndrome (PRRS) virus.

3. If PED virus strikes a sow farm, exposure of all sows for rapid herd immunity and the early weaning of suckling piglets may save lives.

4. Mortality due to PED virus in postweaned pigs is not severe unless there are co-infections or other risk factors at play. Accurate diagnosis of bacterial co-infections and risk factors will aid in implementation of necessary and timely interventions.

Note: For updates, advisories, and PED resources, visit www.ontario.ca/swine

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After understanding what to do if they might have the disease, producers ask “What will happen if I get it in my sow barn?” This answer comes from the OPIC PED resources website:

PED virus has very high mortality – approaching 100% – in suckling piglets. Herd immunity will mitigate losses starting about three weeks after herd infection. Thus, it is likely that 3-5 weeks of production will be lost in continuous farrowing operations, whereas batch farrowing operation losses can range from a few to as much as 100%.

Why is there a difference in mortality and impact between sucking piglets and weaned piglets?

Suckling piglets have greater risk for severe disease for several very important reasons:

1. More susceptible cells – The villi of the small intestine of neonates are very long with many more enterocytes available to be infected by virus.

2. Heal slower – The regeneration time for new epithelial cells (enterocytes) produced in the crypts is longer in neonates than in older pigs.

3. Immature homeostasis – The colon of neonates is functionally immature and less able to compensate for acid-base and electrolyte imbalances or to resorb water.

4. Osmotic pressures from undigested milk – Damage to epithelium reduces enzyme activity and disrupts digestion of milk, which increases the osmotic pressures within the intestine, effectively sucking water out of the piglet’s body and into the intestine and feces.

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At recent meetings, these were the most urgent questions being asked by producers and industry. The following answers are from an information bulletin issued by OMAF and MRA and Ontario Pork:

Porcine Epidemic Diarrhea (PED) is a viral disease that has recently emerged in the USA. It causes vomiting and diarrhea in all ages of pigs and a high death rate in nursing pigs. The clinical signs are similar to those of TGE. PED can be transmitted by anything contaminated by manure, therefore biosecurity is crucial to prevent disease introduction and spread within Ontario.

To protect your own herd, and other swine herds in Ontario, producers should ensure that all trucks and trailers as well as the driver’s clothing and boots, have been washed, disinfected and dried before coming onto your property. Turn away dirty vehicles.

If you see watery diarrhea or vomiting in any age of pig:

• Contact your veterinarian immediately.

• Submit samples to a diagnostic laboratory to determine the cause of the clinical signs.

• If pigs must be transported before a diagnosis is confirmed, work with your veterinarian, suppliers and transporters to minimize the risk of spreading the infection to other herds.

• If a diagnostic laboratory identifies that a new disease such as PED has entered your herd, notify all farm contacts, including feed suppliers, genetic suppliers, deadstock providers, etc., that your farm may be a risk to other farms. This will allow your industry partners to minimize the risk that the infection will spread to other farms.

PED Virus Diagnosis:

At least 10 ml. of feces or intestinal contents on ice from acutely-affected pigs within the first 24 hours of the onset of diarrhea tested by PCR is sufficient to confirm a diagnosis of PED virus. However, a complete diagnostic workup is often warranted.

For updates, advisories, and PED resources, visit www.ontario.ca/swine, now with a link to updated PED related resources

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From a January 28, 2014 News Release

The governments of Canada and Ontario are helping the pork industry step up measures to contain the spread of the porcine epidemic diarrhea (PED) virus.

Ontario is providing $2 million to help Ontario Pork support industry-wide investments to improve biosecurity measures at critical points across the province, such as assembly yards and truck washing stations. Biosecurity remains the best tool to protect swine herds.

The governments of Canada and Ontario have also created a special PED biosecurity program under Growing Forward 2 to help producers, abattoirs, truckers, assembly facilities, and rendering service providers in the pork industry invest in additional biosecurity measures to limit the spread of PED. This initiative is in addition to the existing Growing Forward 2 funding assistance program. Ontario will administer the fund, and applications will be accepted until March 13, 2014.

Investing in enhanced biosecurity measures is part of the federal and provincial governments’ actions to foster a strong agricultural sector.

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The following is a message from Ontario Pork:

Ontario Pork Daily News Brief – Monday, January 27, 2014
** Please note that the time for the Ontario Pork Telephone Town Hall for tomorrow has changed.  Below are the updated details. 

Telephone Town Hall
Ontario Pork is hosting a Telephone Town Hall on Tuesday, January 28th between 3:00 and 4:00PM EST for the pork industry. We will be automatically dialing out to our provincial producers and others who have registered for the event and have provided us with their phone numbers. This call will provide a status update on the current PED situation and actions being taken by the Ontario pork industry. *(Please note only direct or mobile phone numbers will be accepted).

*If you are a pork producer, or have registered you should receive a pre-call invitation today (Monday, January 27) at approximately 2:00 p.m.  If you do not receive an invitation call, but are interested to join the Telephone Town Hall tomorrow, please register, using the link below.   If you experience any difficulties, or wish to dial in, please use the following phone number 877-229-8493, followed by the pin #: 111309 to be connected to the live call.

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