Your data on MRCVSonline
The nature of the services provided by Vision Media means that we might obtain certain information about you.
Please read our Data Protection and Privacy Policy for details.

In addition, (with your consent) some parts of our website may store a 'cookie' in your browser for the purposes of
functionality or performance monitoring.
Click here to manage your settings.
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

Environmental contaminants negatively effect cat health
Researchers found a significant negative correlation between thyroid hormones and organohalogen compounds.
Study discovers negative effects of OHCs on pet cats.

A study led by researchers from Ehime University, Japan, has evaluated the effects of environmental contaminants on pet cat health, as reported by Science Daily.

Researchers investigated the potential health effects caused by persistent organic pollutants exposure in pet cats, finding that this can lower blood thyroid hormone levels and cause chronic oxidative stress.

These organic pollutants, known as organohalogen compounds (OHCs), are human-made chemicals containing chlorine, bromine and fluorine atoms. These are found in some pharmaceuticals, industrial fluids, electrical applications, paint additives, food packaging and many pesticides.

With the close contact pet cats share with human environments, the potential health effects of harmful substances on them is something scientists are concerned with. 

For this study, researchers collected blood from pet cats and analysed their contamination status – finding that a high level of exposure to OHCs correlated significantly with the thyroid hormone homeostasis, chronic oxidative stress and metabolic diseases.

Those researching the effects of these environmental contaminants on pet cat health have concluded that providing companion animals with an environment featuring low exposure to OHCs is an important factor in considering pet welfare. With reducing the OHC contained in the pet's indoor environment and pet food considered a 'necessity'. 

As stated in the Science Daily report, is: “it is essential to clarify the toxic effects of various pollutants on pet cats.” 

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

Annual submission deadline small pet animal exemptions

News Story 1
 Companies marketing medicines for small pets exempt from authorisation must submit their annual return to the Veterinary Medicines Directorate (VMD) by 30 November 2026.

Submitting this annual return ensures continued compliance with regulatory requirements for products marketed without a full Marketing Authorisation. The exemption specifically applies to products intended for animals, cage birds, terrarium animals, small rodents, ferrets and rabbits.

For further details and submission guidelines, visit the gov.uk website.  

Click here for more...
News Shorts
Bluetongue RZ extended across Scotland

The Scottish Government has announced an extension to a Bluetongue Restricted Zone that is in place in south-west Scotland.

From 3 October, the Restricted Zone will be extended to cover the whole of Scotland. The Animal, Plant and Health Agency (APHA) says this is in response to further disease spread, as well as simplify trading conditions ahead of the autumn.

Since the whole country will share a disease status, it will no longer be necessary to have a movement license to move susceptible livestock around the country. Restrictions on germinal products remain.

As of 1 October 2026, there were 1,979 cases of BTV-3 in England, 389 cases in Wales and 40 cases in Scotland.