The Animal Medicines Distributors Association (AHDA) and the Animal Medicines Training Regulatory Authority (AMTRA) have both come out against the BVA's call for all anthelmintic medicines to be reclassified as POM-V, which would prevent them being prescribed by Suitably Qualified Persons (SQP).

Ian Scott, Secretary General of AHDA, said that instead of launching an attack on SQPs, the BVA should be working with them and animal owners to tackle anthelmintic resistance: "The BVA has written to the VMD to ask that all anthemintics be classified to POM-V only. This will monopolise the supply and distribution of anthelmintics for vets only. It effectively places the blame for anthelmintic resistance squarely on SQPs.

"An attempt by BVA to create a division between vets and SQPs demonstrates that the BVA is out of touch with its members.

"Both prescribing channels must work together to tackle the problem and AHDA has been working hard with vets at national and local level to ensure customers receive consistent, high quality, up-to-date and relevant advice from both channels.

"What is worrying is that the BVA attack also infers that farmer producers and equine owners are incapable of making decisions that not only affect their livelihood but cast doubt on their ability to care for their animals' welfare."

Meanwhile, Stephen Dawson, Secretary General of AMTRA said: "The large majority of SQPs deal with parasite control on a daily basis, having trained and been examined to a syllabus developed with BVA input. SQPs have to undertake compulsory continuing professional development, the majority of which includes good practice in parasite control. Therefore AMTRA has every confidence that qualified SQPs have excellent knowledge of parasitology to advise their clients on the correct choice and use of anthelmintics.

"It is important to recognise the hard work, knowledge and dedication of thousands of SQPs throughout the UK. The implication of what BVA say is that they are laying a proportion of the blame for resistance to these medicines at the door of SQPs. But the evidence isn't there: countries in Europe and elsewhere with different prescription systems, mainly though vet-only channels, still have major resistance problems. Prescription of antimicrobials by veterinary surgeons hasn't prevented concerns about prescribing practices and developing resistance. The key point is good advice from the prescriber and how they are then used in practice, rather than who prescribes them. The challenge for us all is not just to seek excellence in prescribing but also in usage on farm, something SQPs are ideally placed to do with their frequent farmer contact.

"I would urge all parties to work in partnership to ensure that best practice in prescription and use is followed by all prescribers and users. It is up to all prescribers to act responsibly, but to single out one group over another is unjustified. A pseudo-monopoly by vets on supply would do nothing to help farmers in difficult times."

Mr Dawson also expressed doubts about permanent POM-V status for new livestock anthelmintics: "While we fully support VMD's and VPC's need to be sure that the risk associated with wider availability of a new product is low, AMTRA considers that the current division in distribution classes and consequent low uptake of the newer products means that the much bigger risk is that widespread reliance on the three aging classes may be followed by reliance on just the two new classes when the older classes become unusable. Much better to have responsible prescription of all five classes now, by appropriately trained SQPs, vets and pharmacists, to ensure that there is a prospect of long term availability of effective parasite control."

The World Organisation for Animal Health (OIE) and the Food and Agriculture Organisation of the United Nations (FAO) have announced that today marks the declaration of the eradication of rinderpest, one of the world's most dreaded animal diseases.

The BVA likened this announcement in the history of animal health to that of the eradication of smallpox in humans.

The announcement came during the 79^th General Session of the World Organisation for Animal Health (OIE), held in Paris. The global freedom status will be ratified by Ministers of Agriculture at the Food and Agriculture Organization of the United Nations (FAO) conference in June.

Rinderpest, also known as cattle plague, has ravaged cattle and the human populations that depend on them throughout history. It was rinderpest that led to the formation of the OIE in 1924 following a new incursion of the rinderpest virus in Europe, via the port of Antwerp.

Dr Peter Roeder, who was Secretary of the Global Rinderpest Eradication Programme from 2000 to 2007, said: "Once a dream, rinderpest eradication is now a reality. Not only does this magnificent achievement help to protect the livelihoods of many millions of livestock-dependent farmers but, because it removes a serious constraint to livestock trade, it has a major positive impact on many countries' economies. If we can truly learn the lessons from rinderpest eradication there is no reason why we couldn't see other diseases brought to global extinction with similar pro-poor and economic impact."

BVA President Harvey Locke added: "This monumental achievement testifies to the dedication of the veterinary services of affected countries and illustrates how vets and veterinary science can have a global impact.   With that in mind I am absolutely delighted that Dr Roeder will be presenting the plenary Wooldridge Memorial Lecture at this year's BVA Annual Congress.  Entitled 'Making a global Impact' Dr Roeder will discuss how vets can contribute to disease control on a global scale.

"I should also like to pay tribute to two British veterinary surgeons who made seminal contributions to the global effort to eradicate rinderpest.  Gordon Scott, a rinderpest researcher, and Walter Plowright who developed the tissue culture rinderpest vaccine, were both leading lights of the rinderpest eradication effort. Sadly they are no longer with us to witness this milestone in veterinary history."

As part of the BVA's celebration of World Veterinary Year Vet2011 and to further illustrate how vets and veterinary science can have a global impact the Overseas Group is organising on Friday 23 September a full day's programme at  BVA Congress: exploring current issues concerning livestock and global food security, veterinary involvement in disaster relief and management, as well as a session celebrating 100 BVA overseas travel grants.

Photograph: Rinderpest virus, copyright held by dr. Rajnish Kaushik

A study by Janssen Animal Health has, according to the company, demonstrated that a leading herbal wormer had no demonstrable efficacy against common poultry worms¹.

The trial, done to Good Clinical Practice (GCP) Standards, involved 48 chickens that had become naturally infected with three different poultry worms - Capillaria (Hairworm) species, Heterakis gallinarum (Caecal worm) and Ascaridia galii (Large roundworm). The birds were randomly assigned to one of three groups:

A. Flubenvet treated group
B. Herbal wormer treated group
C. Control (untreated) group.

The herbal treatment was administered for 3 days in-feed, as required by the 'on-pack' instructions and Flubenvet was given for 7 days as required on the product data sheet. Droppings were collected from individual birds and group pens at intervals for 2 weeks and examined for the presence of worm eggs

Table 1: Worm Count Summaries

The results showed that very few worm eggs were present after one 7-day treatment with Flubenvet. In contrast, those that had no treatment or the herbal treatment still had hundreds of worm eggs in their droppings, suggesting that there were still many adult egg-laying worms present inside the chickens.

Janssen says poultry keepers who rely on preparations like this particular natural wormer may well be building up problems, as the additional numbers of worm eggs in the environment add to the infection pressure and can result in greater worm burdens for their birds. Birds with high worm burdens are more likely to become ill.

• H. gallinarum - causes mild illness but also acts as a carrier for the microscopic protozoan parasite Histomonas meleagridis (Blackhead) in turkeys. The eggs of the worm can live for years in soil so this parasite can be difficult to eradicate and re-infection is common unless regular and effective worming is carried out.
• Capillaria - causes malnutrition, emaciation and anaemia in chickens and death in other poultry species.
• Ascaridia gali - causes emaciation, drop in egg production, ill thrift, anaemia, intestinal blockage and death. Occasionally the parasitic worms may be found in chicken eggs. Earthworms are a common intermediate host, particularly likely to result in parasitic infection of free-range poultry when they eat earthworms.

According to the Veterinary Medicines Regulations 2009 any product making veterinary medicinal claims needs to be licensed by the Veterinary Medicines Directorate. A licensed product has to show proven efficacy and safety for the animal species involved. Licensed veterinary medicines can be identified by their Vm number, which is shown on-pack. Products termed 'nutritional supplements', that are not licensed do not require the manufacturer to produce any proof of efficacy or safety. It is often easy to buy such products 'off the shelf' because they are not subject to any controls. Any poultry keeper who cares about the health and welfare of the birds is advised to think carefully about their choice of wormer and to seek advice from a vet pharmacist or Suitably Qualified Person (SQP).

¹ Evaluation of the efficacy of flubendazole in comparison with a herbal wormer in the treatment of naturally acquired infections of Ascaridia galli, Heterakis gallinarum, and intestinal Capillaria spp in Chickens, Janssen Animal Health

The Society of Practising Veterinary Surgeons (SPVS) is putting out a last call to take part in the SPVS Salaries Survey 2015, open to everybody working in the veterinary profession.

The long-standing survey provides a benchmark for veterinary surgeons, nurses and support staff to see trends in pay and conditions. Designed to provide a complete picture of remuneration levels, the survey covers basic earnings, bonuses, dividends, overtime and benefits such as accommodation, car allowances, private medical insurance and pensions. It also includes questions on employment contracts, hours worked, out of hours and weekend working.

Peter Brown, SPVS Treasurer and author of the Salaries Survey said: “I have been compiling the survey results for a number of years but it never fails to enlighten me as to what is happening in the profession. I know it is also the go to reference guide when practices are recruiting to help ensure they are offering competitive salary packages.

“Participation in the survey is open to all and the more practices that take part, the more accurate and useful the information will be so we would urge everyone working in the veterinary profession to take a few minutes to complete the survey. It can be done online and the information is completely anonymous.”

To complete the survey online, visit www.spvs.org.uk or, for a printed version, telephone 01926 410545. The survey is open until 30 November 2015.

Intervet reports that a clinical trial of 489 cows on dairy farms in the south west last spring and summer has demonstrated some excellent efficacy levels for treating and preventing intramammary infections in the dry period and early lactation.

The trial compared Cephaguard® DC and a 600mg cloxacillin dry cow tube (OEDC) on its own, and in combination with a teat sealant. Cephaguard DC demonstrated superior efficacy in terms of infection prevention during and after the dry period relative to cloxacillin alone, and was statistically equal to the combination treatment group.

Indeed, cows treated with cefquinome (Cephaguard DC) were around half as likely to develop mastitis in the first 100 days post calving than those treated with cloxacillin alone.

The trial also demonstrated excellent efficacy levels against existing Strep. uberis infections when compared with cloxacillin (see table).

DRY PERIOD CURE RATES (%) OF KEY MASTITIS PATHOGENS

Intervet’s large animal veterinary adviser Rosemary Booth said: "With Intervet’s Cephaguard bacteriology scheme showing that Strep. uberis is responsible for 18% of high cell counts and 23% of clinical cases, the dry period offers a fantastic time to treat this persistent pathogen." 

She added: "Several weeks of exposure to an effective dry cow antibiotic provides a particularly good opportunity to kill the cow-adapted strain of Strep. uberis. It lives quite happily in the udder and is tougher and harder to kill than the environmental strain."

The cloxacillin-treated group was significantly more likely to develop clinical mastitis compared to the cefquinome-treated group, as is shown in the table below:

First quarter clinical mastitis cases up to 100 days post calving in quarters not sampled in transition

According to Intervet, the study results suggest that reviewing dry cow therapy this summer, and moving to a cefquinome-based treatment may help reduce the incidence of mastitis.  Further information on the study will be presented at the Large Herd Seminar on 30 June 2008 and is available from Intervet.

Novartis Animal Health has published a product usage chart aimed at vets and SQPs that gives guidance on the use of ectoparasites through the seasons.

The chart covers the use of blowfly preventatives CLiK and CLiKZiN, and the blowfly strike treatment Crovect, which also covers ticks, biting lice, headfly and fly maggots.

There is advice on the treatment of pre- and post-shearing ewes, and early season and main season lambs, plus recommendations for end of season treatments.

Helen Langham, Brand Manager at Novartis Animal Health, said: "The chart is designed to provide an overview of the ectoparasite challenges faced by sheep and lambs through the year, and explain which products should be applied and when.

"SQPs can download the chart and a full range of information about ectoparasites from the Novartis Farm Animal Health website."

The chart can be downloaded from www.farmanimalhealth.co.uk

From the beginning of October this year, the electronic recording of pig movements will be written into legislation.

Following a recent consultation, Defra intends to amend the existing Pigs, Records, Identification and Movements Order (PRIMO) 2007 to reflect the requirement of pre-notification of movements.

Dorothea Schiemann of BPEX said: "There will be a transitional period of six months for the phasing out of the paper-based AML2 forms, planned to start from 1 October 2011. This will give producers and businesses the opportunity to adjust to the change in process.

"From April 2012 the AML2 paper forms will cease to be a valid method of reporting movements. Pig movements will either have to be reported using the free eAML2 online service or the free eAML2 bureau service and there will also be third party agents such as marketing groups or the British Pig Association."

Following extensive trialling, the eAML2 system for farm to slaughter movements was launched in April 2011 across England and Wales. The functions for movements from farm to farm, market, collection centre and show, and for import and export, will be introduced in due course.

Benefits include the fact that the industry will have a realistic herd register providing accurate and timely information. This will enable better communication and control in the event of disease outbreak. There will be no need to fill in the same information again and again as the eAML2 service will pre-populate the basic information automatically. Also, when pigs are sent to slaughter, the system combines the movement licence and Food Chain Information (FCI) form in one, which will save producers time.

For more information and to register to use the system go to: http://www.eaml2.org.uk/

Dr Johanna Fink-Gremmels – Professor of Veterinary Pharmacology and Toxicology at Utrecht University – has warned that UK cattle producers need to plan for an on-going struggle with feed-borne mycotoxins, and says vets need to help farmers understand and mitigate the negative impact on animal health.

Speaking to cattle vets at a CPD meeting organised by Alltech, she said: "When you see a general inflammatory response, such as elevated somatic cell count, mycotoxicosis should always be on your radar. The mycotoxin threat to cattle is increasing in the UK, yet it is often the most neglected causative issue on any list of pathogenic suspects."

Johanna explained that natural toxins produced by diverse fungal species are proliferating worldwide, partly as a result of global climate change, but also because of changing agronomic practices in developed countries. 

"Total mixed rations often now contain more than one fungal species, contributing to a complex mycotoxin picture and unresolved health issues in a herd as a result. Cow signals such as reduced feed intake, reproductive disorders, laminitis, mastitis, impaired liver function, a poor response to vaccination programmes and even increased susceptibility to bacterial and viral diseases can all be attributed to ingesting mycotoxin contaminated feed."

Johanna says the biggest challenge for UK dairy farmers is now multiple mycotoxin contamination of grass and maize silage. 

"Cattle health problems with feeding obviously mouldy silage are relatively well understood. But new harder to detect fusarium toxins – such as, for example, Enniatins and Beauvericin contaminating cereal grains – are also now being found in pasture grass in Northern Europe. These will also adversely affect the efficiency and function of the rumen.

"The rumen determines the health and productivity of the cow. When rumen bacteria are suffering the liver does not function correctly initiating a cascade of adverse events; and often a generalised inflammatory response is triggered, which leads to a loss of production."

Johanna added that in the future farmers will need select feed crop plants that are more resistant to fungal invasion and will also have to re-adjust tillage methods to reduce mould contamination. "However, we know that this alone will not stamp out mycotoxin contamination without creating a biological vacuum that will be filled with other micro-organisms.

"Consequently, it will be essential to continue to apply strategies such as rigorous on-farm risk assessment and the use of appropriate in-feed mycotoxin-sequestration agents (binders) to prevent the production-limiting and adverse health effects in our farmed livestock."

Novartis Animal Health has launched Farming against BVD, a new initiative to help in the fight against Bovine Viral Diarrhoea (BVD).

The campaign, which is being carried out in partnership with key industry bodies, will begin with an independent survey of farmers, the results of which will be announced in April.

An expert panel, headed by Professor Joe Brownlie (Royal Veterinary College and Chairman of the BVD Scientific and technical working group), will then come together to analyse the findings, using them to shape and drive an industry response.

Professor Brownlie said: "BVD is a costly and complex disease, spread by a pestivirus that affects the reproductive and immune systems. Persistently Infected (PI) animals are the main source of infection, but can be hard to identify without testing. Only total eradication will prevent the disease from spreading. Eradication Schemes in a number of European countries have already succeeded and Scotland and Ireland have embarked on similar schemes. The information being gathered will help the industry to develop a much needed scheme for England and Wales." 

Joining Professor Joe Brownlie on the expert panel will be Dr Peter Nettleton (Moredun Research Institute), Mansel Raymond (dairy farmer and Chairman of the NFU Dairy Board), Caroline Dawson (Novartis Animal Health veterinary surgeon) and Paddy Gordon (veterinary practitioner).

Survey topics will include levels, and methods, of testing for BVD on farm, understanding of the role of PI animals and the financial impact of BVD on dairy and beef units. Farmers will also be asked who they look to for advice and how they view the role of vaccination. 

Caroline Dawson MRCVS from Novartis Animal Health said: "Countrywide eradication may not be achieved for a number of years, although individual farmers can control the disease on their own farms within 1-2 years, providing substantial cost benefits. The purpose of this campaign is to encourage farmers to take action now against BVD. By working closely with their vets, identifying and removing PI animals, BVD can be removed. Ensuring adequate biosecurity and a robust vaccination policy will eliminate the risk of bringing BVD back onto the farm." 

Professor Brownlie said: "Understanding what farmers understand about BVD, particularly the role of the PI animal, will enable members of the panel and the wider industry, including Novartis and the BVD Stakeholder Group, to meet farmer needs more accurately. Greater awareness of the problem is vital - this is the only way that progress towards eradication will be made."

Defra has announced that bluetongue (BTV-8) vaccine is now available from two pharmaceutical retailers to manage the risk of a BTV incursion.

At the start of June, the British Veterinary Association (BVA), British Cattle Veterinary Association (BCVA), Goat Veterinary Society (GVS), and Sheep Veterinary Society (SVS) welcomed the announcement that bluetongue (BTV-8) vaccine would be available by mid-July to support farmers and smallholders in managing the risk of a bluetongue outbreak predicted to reach mainland UK by late summer.

Since the Defra risk assessment indicates a high risk by late summer of a BTV incursion from France, veterinary associations have been involved in discussions with government, farmers’ representatives and manufacturers to ensure vaccine is available to meet potential demand particularly in the south of England where risk is highest. The situation remains under constant review by Defra as the disease develops and the weather warms up, promoting midge activity.

Pharmaceutical companies MSD and Zoetis announced that batches of vaccine would be available from mid-July, which Defra has just confirmed.

Vets across the UK are also contributing to the Joint campaign Against Bluetongue (JAB), helping to make farmers aware of the risk, clinical signs and what action to take, through speaking at local JAB information events and displaying posters and leaflets in practices.

While welcoming the announcement of vaccine availability in June, veterinary organisations also sought clarification about the cost and the amount of vaccine likely to be available in July and thereafter. This information is now available.

BVA President Sean Wensley said: "We welcome the announcement that vaccine will be available in time to meet potential demand. This disease seriously affects animal health and welfare as well as the productivity of livestock, and vaccination is the key control."

Photo by Fourrure (http://www.boulesdefourrure.fr) [CC BY-SA 2.0], via Wikimedia Commons

Ceva Animal Health has announced that there will be a gap in supply of Cevac Chlamydia, its EAE (Enzootic Abortion of Ewes) vaccine, in June, July and August, due to a vaccine batch failure in the manufacturing process.

Roy Geary, regional director for Northern Europe (including the UK) at Ceva Animal Health, said: “The manufacturing of vaccines is a complex process that involves stringent quality control measures and adherence to regulatory guidelines. 

"Unfortunately, the anticipated vaccine batch has failed to meet the quality expected to be suitable for release, which has temporarily affected the ability to meet the demands of the UK sheep market within the main seasonal vaccination period for EAE."

“We anticipate that the issue in supply will be resolved, with some stock potentially available later in the season, however we recognise that for some farmers the supply will arrive too late for them to use. 

"We are encouraging vets to explore alternative means of safeguarding the health of their clients’ flocks during this period. 

"We recommend implementing robust biosecurity measures and adhering to existing vaccination protocols for other preventable diseases to ensure the overall wellbeing of livestock.

“We will provide vet practices and the wider industry with regular updates as we progress toward a resolution and return to normal supply levels.”

Intervet/Schering-Plough Animal Health has released diagnostic data which the company says indicates that calf scour problems caused by cryptosporidia are on the increase.

A summary of 2010 results from the company's ScourCheck scheme, which identifies infectious scour pathogens in calf faeces, show the protozoan parasite Cryptosporidium parvum being present in 37% of samples.

Intervet/Schering-Plough ruminant veterinary adviser Drew McGurren said: "Ever since we started testing calf faecal samples in the 1990s, rotavirus and cryptosporidia have always been identified as the two main pathogens implicated in infectious scour problems. But the latest data - and feedback from vets in practice - suggest cryptosporidia incidence is on an upward trend.

"Ten years ago our top line reporting used to refer to rotavirus being implicated in around a third of all infectious calf scour problems and cryptosporidia in roughly a quarter. But in 2009, we detected cryptosporidia in 30% of samples. And this year - from the 250 plus faecal samples we have looked at so far - the incidence seems to be even higher."

Drew stressed that scours caused by cryptosporidia are not always confined to housed calves: "Suckler calves between one and two weeks of age can be very susceptible to infection at grass, particularly if conditions underfoot are muddy around ring feeders. Early May has seen quite a lot of rain, and the parasite thrives in damp conditions."

The major source of cryptosporidia is thought to be either adult cows (which act as carriers without showing signs of disease) or infected scouring calves passing the parasite in their faeces. Drew said: "The infectious dose of the organism is very low and if ring feeders are not moved regularly the disease threat that builds up can be very similar to the housed situation. Faecal contamination of feed and water troughs can also be reduced by raising and covering them.

"Cryptosporidiosis in calves is often seen in combination with other diseases, particularly rotavirus. So vaccinating cows against rotavirus with Rotavec-Corona one to three months pre-calving - as well as a sound colostrum feeding regime and maintaining high hygiene standards - can often tip the balance in your favour."

Intervet Schering-Plough says that if cryptosporidia is diagnosed as the problem, parasite replication and excretion can be reduced with Halocur. This is the only product licensed to treat and prevent cryptosporidiosis. Administered orally to calves after feeding (daily for seven days), it can reduce the severity of diarrhoea and prevent the infection spreading to other calves. Treated calves have also been shown to require fewer antibiotic and anti-inflammatory treatments, as well as less rehydration therapy.