Pneumonia-induced lung damage could be costing some cattle almost 74kg a year in lost lifetime growth potential with even moderate damage resulting in animals losing 39kg over an 18 month beef finishing system. These are the figures from a major collaborative study between Schering-Plough and Blade Farming, announced yesterday. They suggest that some producers may not be treating cattle pneumonia as effectively as they could. The project also highlights how better abattoir feedback can be used to improve cattle pneumonia management regimes on farm. In the study, 645 commercial beef animals from 15 units were examined at slaughter for evidence of lung damage. Data on carcase weight, age and grade were also collected to allow estimated daily live weight gains (EDLWG) to be recorded. According to project co-ordinator Paul Williams MRCVS from Schering-Plough, the research team recorded a significant level of pneumonia-induced lung damage in the slaughtered cattle. “Nearly half the cattle (48%) examined on the slaughter line had some level of lung damage. But there was also huge variation between units, with all the cattle from one particular farm having damaged lungs,” he said. The researchers also established that the extent of lung damage was strongly associated with reduced EDLWG. “The more lung lobes that are affected, the greater the potential daily liveweight gain loss and those cattle that had the most lung damage experienced a significant reduction in EDLWG of 202g per day throughout their entire lifetime. “For the animals with any degree of lung damage (310 cattle), the average reduction in weight gain over 14 months was 15kg – equivalent to a financial loss of £16.90 per animal based on a live weight price of £1.10 per kg. So the overall loss for this group of animals was potentially £5,239 – money the industry simply cannot afford to lose,” Paul Williams stressed. “In addition, those carcases with lung damage were significantly more likely to have a lower conformation grade and so receive an even lower price,” he explained. Blade Farming managing director Richard Phelps pointed out that the study had convinced him that paying closer attention to minimising pneumonia-induced lung damage could easily make some beef producers an extra £40-£50 an animal. “All the cattle we take look healthy, but I’ve been surprised at the level of undetected lung damage once the animals have been slaughtered. This lung scoring trial work in the abattoir is now helping us assess just how much lung damage diseases like pneumonia can cause. The feedback will be able to help producers reassess early stage rearing issues and be more vigilant. It’s not just grading issues that we are concerned about. Blade Farming consultant veterinary surgeon Rob Drysdale from the Westpoint Veterinary Group stressed that whilst pneumonia prevention should be the number one objective for all cattle producers, having an effective disease treatment protocol in place is increasingly vital – and particularly one that prevents permanent lung damage from occurring. He said: "Pneumonia infections can quickly damage lungs and once this happens the animal will not be able to express its full genetic potential. This means that even if the affected animal survives it is likely to have damaged lungs for the rest of its life, and this will reduce productivity and growth." T
A new injector gun for administering doramectin-based worm and scab medication to sheep has been introduced by Pfizer Animal Health. According to senior livestock vet Carolyn Hogan, the intra-muscular injection route for this medication combined with the injector’s prime-and-push design allows a single arm movement to penetrate the skin and dispense the treatment.
Vetoquinol UK has launched Marbocyl Solo – a one shot treatment for Bovine Respiratory Disease. Marbocyl Solo is a 100mg/ml solution of marbofloxacin given as one injection IM at 8mg/kg. It treats sick animals fast, killing bacteria in one go, therefore minimising lung damage and consequential morbidity. This fast action reduces the risk of the spread of infection. On top of that, Marbocyl Solo has a meat withdrawal of only 3 days (milk 3 days). “Marbocyl is a well proven antibacterial that is extensively used in cattle practice,” explains Alvin Cerely, Marbocyl’s product manager. “Marbocyl Solo is exceptionally well placed for applying ‘concentration killing’ or a‘strike action’ strategy as opposed to a ‘long action’ strategy used by other antibiotics. Marbocyl Solo is available as a separate presentation to Marbocyl 10% to avoid confusion, particularly with farmers, on different dosage regimes and withdrawal periods.”
Marbocyl Solo is available now and details have been mailed to all cattle vets in the UK and Ireland. Please contact your Vetoquinol representative or telephone 0800 169 8197 for more details.
SMITHS Detection, part of the global technology business Smiths Group, today announces it is to launch a portable detection system that will enable veterinarians to carry out on-site diagnosis of animal diseases such as foot-and-mouth and avian flu.
This new technology means vets will be able to diagnose diseases in livestock and birds in the field in less than 90 minutes rather than having to send samples for laboratory analysis.
The new system will be launched to vets at the World Association of Veterinary Laboratory Diagnosticians conference in Australia in November 2007 and is expected to be in production in mid 2008.
FMDMost of you will be aware that IP8 was declared yesterday. This is a farm in the POZ that was slaughtered on suspicion after detection during surveillance visits. This has lead to further slight changes in the boundaries of the PZ and SZ. These were early lesions and initial laboratory results confirm this.
The epidemiology of the spread of FMD in the area north of Egham suggests that cattle on 4 premises in the vicinity of IP8 have been exposed to infection either via possible aerosol or fomite spread and are likely to develop disease. These premises will be culled as dangerous contacts.
BLUETONGUEThe various zones for controlling Bluetongue have now been defined. These are difficult to describe because they use roads etc. as boundaries but detailed maps and description of the boundaries are available at:
http://www.defra.gov.uk/animalh/diseases/notifiable/bluetongue/pdf/declaration-bt-pzcz290907.pdf
When farms straddle a road that is a boundary the whole of the farm is classed as being in the zone. It may be possible to put parts of a holding that is outside the zone as a separate unit with consultation with local Animal Health office.
The movement restrictions between the various FMD and BT zones are available at
http://www.defra.gov.uk/animalh/diseases/notifiable/bluetongue/movements/index.htm
Defra are worried that farmers are not reporting cases of BT because they feel there is nothing that can be done so why bother. It is still a notifiable disease and there is a need to monitor spread for various trade implications. There are, of course, likely to be welfare considerations with clinically affected cases. These will need to be addressed with veterinary consultation and may involve symptomatic treatment or euthanasia.
The prevalence of the disease in infected herds/flocks is still low with 1:53 and 1:190 being affected on surveillance.
FMDThere is no change is situation of FMD we still have 7 IPs. The temporary control zone near Maidenhead, Berkshire should be lifted shortly.
Movements between the low risks and the risk areas are allowed using licence 450 but once the animal has entered risk area they cannot leave and become subject to the movement restrictions of the risk area.
BTA fifth cow has proved positive on clinical signs on a new farm in the Ipswich area, however, it is still not possible to show spread within the country. The OIE is to be notified that cases of Bluetongue are occurring but there is still no evidence of transmission from animal to animal through vectors.
Four of the five animals with BT have been diagnosed on classical clinical signs as outlined in various articles.
For completeness all the signs have been in cattle and include:
The European Commission has announced the EU's animal health strategy for 2007-13. The announcement provides the framework for animal health measures over the next 6 years, taking into account feedback from stakeholders and potential challenges in the future.
The overall aim is to put greater focus on precautionary measures, disease surveillance, controls and research, in order to reduce the incidence of animal disease and minimise the impact of outbreaks when they occur. Click here for more ...