National Office of Animal Health

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Government plans on OP dips a "logistical nightmare" says NOAH

The National Office of Animal Health is astonished that the Government has felt the need to resort to precipitate action on OP dips by recalling all current packs within only 20 working days.

"The withdrawal will cause a logistical nightmare," says NOAH director Roger Cook. "Hard-pressed sheep farmers need to return all their stocks to their distributors, who then have to return them to the manufacturers. All this needs to be done by 31 January - a seemingly impossible task. We very much regret that the farming industry has not been consulted on how a recall could be more sensibly handled."

Manufacturers have co-operated with regulators and allied organisations over the years to ensure that these products, so important to sheep welfare and for farmer choice, could remain available. "We welcome the advice from the regulatory committees that there is no need for a general withdrawal of OPs from the market. But the plan for dips is totally disproportionate: it will effectively introduce a ban by removing all stock from the market - down to farm level - many months before there is any hope of replacement packs being available," says Mr Cook. It is important to note that MAFF themselves have no criticism of the product - only the packs.

"Following the Institute of Occupational Medicine’s Report, companies presented proposals for redesigned packs to the Veterinary Products Committee in all good faith," he says. "It was no surprise that the IOM concluded that concentrate represented the greatest hazard - this has been known for years. But any new pack design has to be economically viable and practical.

Different options were put forward from different companies - but even if these are acceptable to the authorities, and they will take time to develop. There will be no OP dip this spring - and very few, if any, products will return."

"The industry supports the safe use of its products," says Mr Cook. "Following the VPC recommendations in July, all sectors of the industry worked with the Veterinary Medicines Directorate to produce a laminated sheet to remind farmers of the precautions they should be taking. These were sent to every sheep farmer only last month as a reminder of label precautions. What a waste of public money!

"We have always taken every step to make sure that farmers are aware of the need to use these potentially hazardous products with caution," he adds. "And we were pleased by the very recent report from the Committee on Toxicology, which represented a very thorough investigation - and saw no need for a ban."

"In the end, it will be sheep farmers - and their sheep, who will lose by this decision," says Mr Cook.

It is important to remember why these products are used for sheep:

1. Animal welfare

UK sheep are prey to a wide range of debilitating and potentially life threatening parasites. Following the previous government’s disastrous decision to end compulsory treatment, sheep scab is now endemic throughout Great Britain. Afflicted sheep are so damaged by the irritation of the parasite that they can stop feeding, lose condition, fertility falls and in extreme cases animals may die or be destroyed.

Blowfly strike, where maggots literally eat the sheep alive, can take hold in a few days, animals die of toxic shock or have to be destroyed. Other parasites, once rare, such as lice and keds, have increased since the end of compulsory dipping.

OP sheep dips have the widest range of efficacy against ectoparasites affecting sheep.

2. Environmental Protection

It is important to remember why OP products came into use for dipping - they were seen as ‘kind’ to the environment when HCH dips were withdrawn in the mid 1980’s. Now there is more choice for farmers, but every product has its advantages and disadvantages and SP dips, for example, have been cited as being a potential environmental hazard if disposal instructions are not followed properly.

3. Farm Costs

The ability of the farmer to choose the most appropriate product for his or her own particular circumstance is vital. At this critical time for sheep farming, OP dips are perceived by many farmers as being the most cost effective for them. The products’ broad spectrum can lead to 'added value': by also killing parasites of minor clinical importance, the sheep skins will be better quality and increase the value of the animals.

4. The right to choose

Farmers still choose OP dips - 15 000 have chosen to undertake the certificate of competence to dip, and, despite 10 years of bad publicity about OPs, the proportion of OP dips in all sheep ectoparasite sales is now rising, currently standing at 27%.(3) This rise in OP usage is significant as it demonstrates the continuing faith of farmers in the products to protect the health and welfare of their flocks.

No one has ever been forced to use OPs, and, before this news, there was a very wide choice of products available. Farmers, like all consumers, should have the right to make an informed choice of the right product for them and their animals.


20 December 1999

Notes for Editors

  1. For further information contact Roger Cook or Alison Glennon at NOAH, tel. +44 (0)20 8367 3131, or visit the NOAH website.

  2. The National Office of Animal Health was formed on 1 January 1986 to represent the UK companies which research, develop, manufacture and market licensed animal health products. The association has 36 corporate members and 11 associate members. In 1998 NOAH's members accounted for around 95% of the £384 million UK animal health market, with additional valuable exports.

  3. Sales of ectoparasiticides, showing the rise in proportion of OP products, representing an actual increase in sales, are set out:

    1996/7 1998/9
    Endectocides 5% 25.9%
    OP Dips 23% 27.3%
    SP Dips 38% 10.3%
    All others (pour-ons etc) 34% 36%
    Value (ex manufacturer) £13.42m £16.06m

See also

Briefing document "Organophosphates for animal health"