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Viral diseases in poultry
If you ask poultry producers what damage viruses can do to their business, they will understandably think mostly about major diseases such as avian influenza, Gumboro disease or respiratory infections such as Infectious Bronchitis virus. However, this is merely the tip of the iceberg. Viral challenges can be the triggers for a whole range of problems which may never even appear as clinical disease but can have an even more devastating effect on overall flock performance, production and profits. They can affect one or more of the birds’ body systems, the most significant of which are the respiratory tract (lungs and air sacs), the skeletal system (bones and joints) or the intestinal tract (affecting gut function). Although other factors such as environment, nutrition and management play an important role in the full expression of diseases affecting these systems, the most significant underlying trigger is usually an infectious agent, and the most potent of these are undoubtedly viruses.
Brazil reported and outbreak of Newcastle disease on a farm in Rio Grande do Sul at Vale de Real on May 2, 2006. The flock contained 44 susceptible birds with 17 cases including 16 deaths, 23 birds were destroyed. The last occurrence of Newcastle in Brazil was in April, 2001. The state of Rio Grande do Sul has 17% of the poultry production and 24% of Brazil’s first half 2006 poultry exports.
The outbreak comes as Brazil is already facing an approximate 6% decline in poultry exports in the...
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Merial’s Avian business announced today the launch of Vaxxitek® HVT+IBD, the poultry industry’s first one-dose, hatchery vaccination specifically designed to protect against Classic, Variant or vvIBD strains of Infectious Bursal Disease (IBD). Vaxxitek® HVT+IBD has recently been approved for sale and use in Brazil with additional country approvals pending.
After in-ovo or day old injection, Vaxxitek® HVT+IBD is unique in that it provides effective control and improved performance against...
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Gut health positively influences animal health, performance and profitability
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Avian influenza (AI) and Newcastle disease (ND) are poultry diseases of great concern to the poultry industry. The viruses that cause these diseases can be killed by heat. But the exact parameters for inactivating them by pasteurization had not been established—until now.
Agricultural Research Service (ARS) scientists have shown that the same industry-standard pasteurization temperatures and times established for Salmonella inactivation in egg products can also kill AI and ND viruses....
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Yemen has identified Newcastle disease, common among fowl but harmless to humans, as the cause of chicken deaths which have prompted public fears of a possible bird flu outbreak, officials said on Saturday.
An official who asked not to be named told Reuters that Newcastle disease and not bird flu was behind the chicken deaths in poultry farms in the Arab country. He declined to give further details.
Newspapers quoted residents in some areas as saying large numbers of chickens had died,...
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Introducing Afla-V ONE: Fast, precise aflatoxin detection for complete feeds and pet foods
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Restrictions introducted following a case of Newcastle Disease in France earlier this year, have been lifted.
On July 19, 2005, the French authorities notified the European Commission and the OIE (World Animal Health Organisation) of a suspicion of Newcastle disease on a pheasant and partridge farm in the Loire-Atlantique departement. The suspicion was confirmed and notification of the outbreak was given on July 27.
All measures imposed by the European Union regulations had been largely...
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"Can and will Avian Influenza Virus, Newcastle Virus, and IBD be spread by wind, litter or free-flying birds?" This interesting question is discussed in Lohmann Animal Health’s Newsletter, with interesting answers to that ongoing discussion.
Now, with AI arriving in Russia and Kasachstan, and migratory birds preparing for their departure from Siberia to Europe, an answer to that question is more mecessary than before. Yet, other problems, more closely or more acute sometimes, interfere with...
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The following is a Ministerial Statement by Ben Bradshaw, the Parliamentary Under Secretary for Environment, Food and Rural Affairs, on the recent Newcastle Disease case:
On 11 July 2005, suspicions were raised about the possibility of Newcastle Disease being present in pheasants on an estate in Surrey. We acted immediately on suspicion of disease following the control measures set out in Defra’s Exotic Animal Disease Generic Contingency Plan. The suspect premises were immediately placed...
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Newcastle Disease was confirmed in pheasants on an estate in Surrey on Friday 15th July. The Government is continuing to take balanced precautionary action to control the disease. The Chief Veterinary Officer, Debby Reynolds has reported that by yesterday evening over 5,000 pheasants had been culled humanely.
The Government has activated its contingency plan. Both National and Local Disease Control Centres are in action to ensure effective management of the outbreak.
Veterinary Officers...
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The poultry industry breathed a sigh of relief after three months of testing found two Northland egg layer farms free of infectious bursal disease.
The disease attacks the immune system. It does not affect humans, but is potentially lethal in chickens.
Bursal disease, avian influenza and Newcastle disease are the most feared diseases for the New Zealand industry, which last year produced more than 87.5 million chickens.
After an outbreak of bursal disease in 1999 the Poultry...
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Exports of British poultry have been halted outside the European Union after the discovery of a highly-infectious disease in a flock of pheasants.
The flock of 9,000 birds, kept at a farm in Surrey, is being culled, according to the Department for Environment Food and Rural Affairs (Defra).
Exports including live birds, meat and eggs have been suspended to countries outside the EU until further notice.
The pheasants, which were being reared for shooting, came to the UK as part of a...
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The poultry indisytry is relieved that two Northland poultry farms have been cleared of Infectious Bursal Disease, or IBD.
Along with Avian Flu and Newcastle Disease, IBD is a disease that chicken farmers most fear.
But the industry is concerned about the time it has taken to clear the farms and the costs of keeping them isolated for three months while tests were carried out.
The farms were placed under movement control after routine blood tests showed apparent antibodies.
The...
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The main objective of this study was to evaluate the transmission and pathogenicity of ILTV (Infectious Laryngotracheitis Virus) chicken embryo origin (CEO) vaccine derived viral subpopulations.
Dr. Maricarmen GarcÌa and Dr. John Glisson, of the M.A.M. Department of Avian Medicine Poultry Diagnostic and Research Center in Athens, Ga., recently completed the research funded by the U.S. Poultry & Egg Association.
Chicken embryo origin viral subpopulations ("A" and "B") were separated as...
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The Digital Evolution of the Poultry Industry: Imagine. Collaborate. Gain.
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Cyprus is still striving to get on top of an outbreak of Newcastle Disease.
But two other countries, Finland and Bulgaria, have succeeded in getting on top of outbreaks.
The disease was first confirmed in Cyprus on November 26, 2004. Control measures undertaken partial stamping out, movement control inside the country, vaccination; and disinfection of infected premises - were undertaken.
Ministry of Agriculture officials in Nicosia told the OIE (World Animal Health Organisation) last...
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Further information about an outbreak of Newcastle Disease in Sweden has emerged.
As stated in the emergency report, Sweden received confirmation on July 20, 2004, of the presence of Newcastle Disease virus in a sample collected in a holding of laying hens in the County of Ostergotland ( central east coast of Sweden), and the same virus was detected in another farm, situated approximately 500 metres from the farm where the infection was first detected.
Dr Leif Denneberg, Chief Veterinary...
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