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Cat coat colour linked to aggression, study suggests
Cats with tortoiseshell and calico coats tend to be more aggressive towards their owners.
Torties and calicos found to be the most challenging
 
Cats with tortoiseshell and calico coats tend to be more aggressive towards their owners than cats with other coat colours, a recent study suggests.

The findings, published in the Journal of Applied Animal Welfare Research, back up the long-held belief that such cats are often the most challenging.

Led by Dr. Elizabeth Stelow from the UC Davis Veterinary Medical Teaching Hospital, the study was based on an online survey of over 1,200 cat owners.

The survey did not reveal the focus of the study and simply asked cat owners question's about their feline's behaviours. Participants were asked to select a colour category and written description that best fit their pet.

The researchers found that torties and calicos are more likely to scratch, bite and hiss during interactions with people.

Perhaps more surprisingly, the survey also revealed that cats with white and black, and white and gray coats are slightly more likely to engage in those behaviours.

The study is thought to be the first of its kind to look at the relationship between coat colour and behaviour. Commenting on the findings, Dr. Elizabeth Stelow believes that there is scope for further investigation.

Speaking to US news website Sacramento Bee, she said:  "We thought the findings were very interesting and we would love other researchers to take the baton and run with it, to look at the genetics of why this may be happening."  

Tortishells and calicos are reputed for being more temperamental than cats of other colours. Torties are a mix of brown, black, amber and red while calicos are mostly white with patches of black and orange.

Because two X chromosomes are necessary to produce their colouring, the majority of both types of cats are female. 

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Equine Disease Surveillance report released for Q4 2025

News Story 1
 The latest Equine Disease Surveillance report has been released, with details on equine disease from Q4 of 2025.

The report, produced by Equine Infectious Disease Surveillance, includes advice on rule changes for equine influenza vaccination.

Statistics and maps detail recent outbreaks of equine herpes virus, equine influenza, equine strangles and equine grass sickness. A series of laboratory reports provides data on virology, bacteriology, parasitology and toxicosis.

This issue also features a case study of orthoflavivus-associated neurological disease in a horse in the UK. 

Click here for more...
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NSA webinar explores sheep tailing and castration

The National Sheep Association (NSA) is to host a free webinar on the castration and tail docking of lambs.

The webinar, 'Understanding the tailing and castration consultation: A guide for sheep farmers', will be hosted online on Monday, 2 March 2026 at 7.30pm.

It comes during a government consultation into the methods used for these procedures. Farmers are encouraged to engage before the consultation period closes on Monday, 9 March 2026.

The webinar offers clear and actionable guidance to support farmers to contribute meaningfully to the consultation and prepare for potential changes.

On the panel will be former SVS president Kate Hovers, farmer and vet Ann Van Eetvelt and SRUC professor in Animal Health and Veterinary Sciences Cathy Dwyer. Each panel member will utilise their own specialism and expertise to evaluate risks and outcomes to sheep farming.

Find out more about the webinar on the NSA website.