Cookie use on MRCVSonline
We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive all cookies.
If you would like to forward this story on to a friend, simply fill in the form below and click send.

Your friend's email:
Your email:
Your name:
 
 
Send Cancel

Neutered female dogs live longer, study finds
Overall, researchers conclude that sex plays only a minor role in longevity and cause of death.
Research explores link between sex and lifespan in dogs 

Neutered female dogs live longer than male dogs or un-neutered females, according to a new study that explores the impact of sex on the longevity of pet dogs.

US and UK scientists looked at two large datasets, comprising records of over 70,000 canine deaths at North American veterinary teaching hospitals, as well as nearly 5,000 death records from primary veterinary clinics in the UK, acquired through the RVC’s VetCompass initiative.

Findings published in the Journal of Gerontology suggest that neutering status has a greater impact on survival than sex. Intact males were found to live slightly longer than females, whilst neutered females ‘clearly live longer’ than any other group.

Death from cancer and diabetes mellitus appeared to be more common in females, whereas trauma was a more frequent cause in males. However, these findings were only significant in the larger North American dataset.

Interestingly, females were more likely to be neutered, according to the data. In the North American dataset, 71 per cent of females and 42 per cent of males were neutered, while in the UK, 58 per cent of females and 47 per cent of males were neutered.

In humans, females live significantly longer than males and there are known to be multiple differences in cause of death between the sexes. Until now, this phenomenon had not been well researched in dogs, but scientists say there appear to be no such consistent differences.

The team acknowledged certain limitations of the study - for example, the North American data did not include exact ages of death and was subject to referral and outcome bias, meaning it is not likely to be an accurate representation of the whole US/Canadian dog population.

Nonetheless, they added, the study is the most complete work to date that explores the sex differences in longevity in pet dogs. Overall, researchers conclude that sex plays only a minor role in longevity and cause of death. The finding poses interesting questions about the potential impact of evolution and domestication on sex-related longevity.

Become a member or log in to add this story to your CPD history

New single-dose RHD-2 vaccine launched

News Story 1
 The first monovalent vaccine to be registered in Europe for the prevention of rabbit hemorrhagic disease type 2 (RHD-2) has been launched by animal health firm HIPRA.

ERAVAC is a single-dose injectable emulsion that can be administered without the need for reconstitution beforehand. The new presentation contains 10 vials with individual doses that can be given to companion rabbits from 30 days of age. 

Click here for more...
News Shorts
New canine and feline dentistry manual announced

A new canine and feline dentistry and oral surgery manual has been published by the BSAVA. Announcing the news on its website, the BSAVA said this latest edition contains new step-by-step operative techniques, together with full-colour illustrations and photographs.

‘This is a timely publication; veterinary dentistry is a field that continues to grow in importance for the general veterinary practitioner,’ the BSAVA said. ‘The manual has been fully revised and updated to include the most relevant, evidence-based techniques.’

The BSAVA Manual of Canine and Feline Dentistry and Oral Surgery, 4th edition is available to purchase from www.bsava.com/shop