Investigation of risk factors for Salmonella on commercial egg-laying farms in Great Britain, 2004-2005

Snow, L. C.; Davies, R. H.; Christiansen, K. H.; Carrique-Mas, J. J.; Cook, A. J. C.; Evans, S. J.
May 2010
Veterinary Record: Journal of the British Veterinary Association;5/8/2010, Vol. 166 Issue 19, p579
Academic Journal
In 2004/05, all European Union member states were required to carry out standardised prevalence surveys to establish the baseline prevalence of Salmonella in commercial laying flocks. As part of the survey in Great Britain, additional data were collected from 380 of the enrolled laying hen holdings to investigate risk factors for Salmonella at farm level. Stratified, simple random sampling was used to select holdings from which dust and boot swab samples were collected and tested for Salmonella using a modification of ISO 6579:2002. Using a multivariable logistic model weighted to account for the survey design, several factors significantly associated with Salmonella and Salmonella Enteritidis status were identified. Larger holdings (≥30,000 birds) were found to be at higher risk of Salmonella (odds ratio [OR] 4.79, P=0.025), while vaccination (OR 0.28, P=0.013), providing foot dips with brushes (OR 0.27, P=0.042), washing and disinfecting the house at depopulation (OR 0.19, P=0.003), having a clean car park away from house (OR 0.14, P=0.001), using an independent (OR 0.19, P=0.007) or other non-company (OR 0.40, P=0.049) source of feed, being over 1 km from the nearest neighbouring farm (OR 0.45, P=0.021) and the presence of cats and dogs on the farm (OR 0.26, P=0.002) or on contiguous farms (OR 0.44, P=0.030) reduced the risk of any Salmonella serovars being present. Factors found to be associated specifically with an increased risk of S Enteritidis infection included holding size (OR 14.88, P=0.001) and frequent sightings of rats (OR 8.17, P<0.001) or mice (OR 5.78, P=0.006). Non-caged systems (OR 0.14, P=0.002), vaccination (OR 0.08, P=0.001), the use of a non-company feed source (OR 0.11, P=0.003), running the site as all-in/all-out (OR 0.06, P<0.001) and the presence of cats and dogs on the farm (OR 0.14, P=0.002) were associated with a reduced risk.


Related Articles

  • Conversation Opportunities. Lee, Jessica Goodman // Veterinary Team Brief;Sep/Oct2013, p32 

    The article discusses importance of client and veterinarian communication. Topics discussed include difference in dogs and cats as they are master in hiding their illnesses, communicating with clients about cat's diet, weight management and dentistry and a chart representing several feline...

  • T.L.C. For Your Aging Pet. HOEHN, LISA // Prevention;Feb2012, Vol. 64 Issue 2, p135 

    The article suggests ways to keep older cats and dogs comfy and healthy. It cites some of the health problems experienced by older animals including musculoskeletal issues, arthritis, thyroid or kidney disorders and cancer. It suggests that older animals must visit a veterinarian once every 6...

  • The everyday and the hard-to-pay.  // Firstline;Aug2011, Vol. 7 Issue 8, p14 

    The article offers information on how a veterinarian can help clients and pets prevent common and costly conditions. Medical problems in cats are lower urinary tract disease, gastritis and chronic renal failure, and in dogs, ear infection, skin allergy, and gastritis and vomiting. It lists...

  • Interobserver Variability of Radiographic Pulmonary Nodule Diameter Measurements in Dogs and Cats. Williams, Jackie M.; Graham, John P.; Chong Wang // Journal of the American Animal Hospital Association;Mar/Apr2014, Vol. 50 Issue 2, p83 

    The article deals with a study which examined the interobserver variability of radiographic pulmonary nodule diameter measurements in cats and dogs among readers with varying levels of experience. The results show that there was a 16% interobserver variability in diameter measurement for any...

  • The STATE of PET health. Verdon, Daniel R. // DVM: The Newsmagazine of Veterinary Medicine;Jun2011, Vol. 42 Issue 6, p1 

    The article focuses on the "State of Pet Health 2011 Report," released by U.S.-based Banfield Pet Hospital which discovers increases in diabetes, dental disease, and other common and preventable health problems in pets. The study of 2.1 million dogs and 450,000 cats finds a 32% increase in...

  • Selected highlights from other veterinary journals.  // Veterinary Record: Journal of the British Veterinary Association;4/14/2012, Vol. 170 Issue 15, p393 

    The article presents abstracts related to veterinary such as "Corneal reconstruction in dogs and cats," by F. Goulle, "Reliability of digital thermometers when measuring rectal temperature in cattle," by J. M. Naylor, R. M. Streeter, and P. Torgerson, and "Evaluation of a mental wellbeing scale...

  • What you know is a little dangerous. Allen, Christopher J. // DVM: The Newsmagazine of Veterinary Medicine;Jul2011, Vol. 42 Issue 7, p64 

    The article focuses on the factors which the veterinarians should consider during the treatment of aggressive dogs or cats. It states that the first and the foremost responsibility of the veterinarians in this situation is the care and treatment of the animal and not its handler or owner. It...

  • Serovars, bacteriophage types and antimicrobial sensitivities associated with salmonellosis in dogs in the UK (1954-2012). Philbey, A. W.; Mather, H. A.; Gibbons, J. F.; Thompson, H.; Taylor, D. J.; Coia, J. E. // Veterinary Record: Journal of the British Veterinary Association;1/25/2014, Vol. 174 Issue 4, p1 

    Serovars and bacteriophage (phage) types were determined for 442 isolates of Salmonella enterica from dogs in the UK submitted to the Scottish Salmonella Reference Laboratory from 1954 to 2012. The most frequent serovars were Salmonella Typhimurium (196 isolates; 44.3 per cent), Dublin (40...

  • Outbreak of Salmonella enteritidis associated with homemade ice cream--Florida, 1993. Buckner, P.; Ferguson, D. // MMWR: Morbidity & Mortality Weekly Report;9/16/1994, Vol. 43 Issue 36, p669 

    Presents a scientific report on an outbreak of Salmonella food poisoning in Florida in 1993. Tracing of source of outbreak to eggs; Symptoms of food poisoning; Warning to consumers to refrigerate or cook eggs well.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics