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Bird Flu (Avian Influenza) Main Page Avian Flu (Avian Influenza)
Avian Influenza - Related Issues Reportedly on the 16th more than 80 million chickens had been slaughtered and the Highly Pathogenic strain of Avian Influenza [HPAI] had been detected in 10 Asian countries. [China, Indonesia, Viet Nam, Cambodia, Lao DPR, Thailand, Japan and the Republic of Korea] Other less pathogenic strains of AI have been identified in Taiwan province of China, Pakistan, USA and Canada. The region's poultry industry is said to be devastated and FAO has advised vaccination as a control measure as the culling programmes in operation are failing to halt progress of the disease. Negative Socio-economic effects include:
Source:WATT Poultry Global e-News: on 9, 12 and 16/02/2004 Transboundary diseases are a permanent threat for livestock keepers. They have major economic implications - both through the private and public costs of the outbreak, and through the costs of the measures taken at individual, collective and international levels in order to prevent or control infection and disease outbreaks. The paper argues the economic rationale for public intervention, based on the public good nature of many control efforts. The need for public intervention frequently extends to the international level and calls for international and regional co-operation, without which in many cases control efforts can not be expected to be effective. However, in practice it can be more difficult to determine which is the appropriate level and type of control, or what is the proper mix between private and public and national and international action. One problem is that the paucity of accurate data and information on the costs of both transboundary animal diseases and of control efforts make decisions difficult on the most cost-effective interventions. It can also be difficult to ensure the necessary collective action, particularly at the international level, as involved parties and countries may have quite different incentives to participate in control efforts. Closely related to this is the question of the proper sharing of costs of controlling transboundary animal diseases. The recent years have seen both progress and retreat. The technical ability to control old problems has greatly advanced and improved information exchange has facilitated reaction to the emergence of transboundary animal diseases. At the same time, however, increased movements of people and goods have facilitated the spreading of many transboundary animal diseases, while a number of new forms of diseases have appeared - the emergence and spreading of BSE in Europe and SARS in East Asia being notable examples. These developments strengthen the case for collective action at the regional and international level. Some of the challenges are the following:
In the light of the Avian Influenza crisis in SE Asia, it may be helpful for countries to review the use of poultry litter and poultry by-products in animal feed.
Poultry manure/poultry litter is fed to ruminants in some countries as a source of non-protein nitrogen (mixed on the farm with corn and other ingredients). It is however banned in the European Union and Canada. There is also now a proposal by the United States Food and Drug Administration to ban this practice. Given that poultry manure/poultry litter containing droppings, feathers and waste feed is a potentially high-risk material, FAO recommends that the feeding of poultry manure/poultry litter should be banned in countries affected by or at risk from avian influenza, even if correctly composted, ensiled or dried with heat treatment. Even when not used as feed, poultry manure/poultry litter should be subject to careful control. It may be incinerated or subject to steam treatment at a temperature of 70oC. Alternatively, it may be buried, ensiled or composted and kept covered for 42 days to prevent access by vermin, wild birds and scavenging animals. Run-off into water courses must be prevented.
Processed and rendered by-products from slaughtered poultry are also used in animal feeds.
Feather meal, a product resulting from hydrolysing poultry feathers, is produced in pressurized chambers at 2-3 bar pressure for 30-60 minutes at a minimum of 121oC, followed by drying, grinding and packaging.
Poultry meal is the dry rendered product from a combination of clean flesh and skin with or without accompanying bone, derived from the parts of whole carcasses of poultry or a combination thereof, exclusive of feathers, heads, feet and entrails. Poultry by-product meal consists of the ground, rendered, clean parts of the carcass of slaughtered poultry, such as necks, feet, undeveloped eggs and intestines. These products are usually produced in batch processes where the minimum temperature is 121oC and minimum retention time is in excess of 40 minutes. The Office International des Þpizooties (OIE) states that the Avian Influenza virus is inactivated at a temperature of 56oC for 3 hours or 60oC for 30 minutes.
In the light of the risk of Avian Influenza spreading between flocks and across borders, FAO considers the feeding of poultry by-product meals as safe and not a contributor to the spread of the virus where processing conditions are in excess of that needed to kill the virus.
Where OIE or industry standards are not being followed in those countries affected by Avian Influenza, FAO recommends that the use of poultry by-products is discontinued including the use of all meat and bone meal containing avian material and/or feather meal.
Unaffected countries should confirm that imported poultry by-product meals and feather meals have been processed to the above standards. Otherwise a temporary ban on feeding of poultry by-product meal and feather meal should be considered. Note: This modified release updates and supersedes that placed on the website in February 2004.
The South East Asia region accounts for approximately one-quarter of world poultry trade (including re-exports from Hong Kong) with China and Thailand the largest exporters. Accounting for 15 percent of global poultry shipments, these two countries are estimated to have exported almost 1.1 million tonnes in 2003, more than half of which went to Japan. To-date, many of the major poultry importing countries have banned poultry imports from both countries.
The disease impact is likely to be most felt by smallholders and smaller specialised broiler and layer operations which lack the bio-security measures put in place by the larger commercial units. This has the potential to accelerate trends towards the industrialisation of poultry operations in the affected countries. Table: Poultry Exports in 2002, by destination (Source: FAO data trade flow)
The intensive commercial producers are better placed to withstand the shock of the epidemic and rebuild their industry. The poorer farmers and small to medium-scale poultry producers will be the hardest hit and the least able to recover from the crisis. Both the direct and indirect effects of the crisis will have a devastating impact on the livelihoods of both the resource poor households who kept poultry in household flocks as well as the small to medium-scale commercial producers. In Thailand poultry owning smallholders are the most affected by the crisis as they own 30% of the number of chickens and represent 97% of the number of holdings. Investigation and assessment of the impact of disease in these smallholders system will be a very difficult task, for example in Thailand they represent some 3 million households. To alleviate the economic and social impact of the avian influenza epidemic on the most vulnerable sectors of society will require a substantive, well prepared and targeted programme of rehabilitation and assistance. Under the mandate of FAO and in the frame of a Regional TCP prepared by AGA, a prerequisite to implementing an effective rehabilitation programme, both in the immediate and longer-term, will be a thorough understanding of the social and economic impact the disease has had on the different poultry production systems in region. The objectives of this component of the Regional TCP are to analyze and understand the social and economic impact of the avian influenza outbreak on poultry production and producers livelihoods. The results will form a rational basis for comprehensive and meaningful rehabilitation programmes being development by the national authorities with the assistance of FAO. Reports from the field:
Field Report-Viet Nam |
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