Image copyright Aleksandra Lauwers Image caption A full toxicology report is expected to reveal more about Jagger's death

There is "no doubt" a prize-winning Irish setter was "maliciously poisoned" at Crufts, one of his owners has said.

Thendara Satisfaction, known as Jagger, died after leaving the Birmingham show. His owners say he ate poisoned beef.

Co-owner Jeremy Bott said he did not think the dog was targeted, but the culprit may have been acting on "a grudge against dogs or the Crufts show".

The Kennel Club said it was the only case of poisoning being investigated.

Fellow owner of Jagger, Aleksandra Lauwers, said they had lost "our love, family member and best friend to our son".

Mr Bott's wife, Dee Milligan-Bott, told BBC Radio 5 live: "I don't believe in my heart of hearts that this was another competitor or anyone involved in the dog world.

"I can only imagine that it was a random act that somebody premeditated and wanted to cause total distress at the best dog show in the world.

"It's not unknown for people to do things like this.

"He was a typical Irish setter, totally trustworthy and so loved. We are devastated.

Image copyright Dee Milligan-Bott Image caption Jagger had just won second place in his category

"The Crufts committee and all championship show dog committees will have to look at security."

Jagger came second in his class at the show at Birmingham's NEC on Thursday.

He died after returning to Belgium with Ms Lauwers.

Leicester-based breeder Mrs Milligan-Bott claimed the dog must have been given the meat "while on his bench at Crufts", calling it "a heinous crime."

Media playback is unsupported on your device Media caption Jeremy Bott, co-owner of Jagger says the dog ate poisoned meat

Speaking to BBC Radio 4, her husband Jeremy said: "When the vet opened up his stomach, she found cubes of meat - some sort of beef-like steak - and they had been sewn up with poison inside.

"She thinks there were possibly two or three types of poison.

"I think she identified one as a slug killer. I would guess that the other would turn out to be a rat poison or some industrial type of poison."

He said he did not believe the attack was targeted but he did not think the culprit would be caught.

He said: "They will hopefully try with the CCTV they have in the halls at Crufts but I don't think they will be able to find anybody."

Image copyright PA Image caption Jagger's owner, Jeremy Bott, said the NEC would check its CCTV but he did not believe the culprit would be caught

The couple's daughter, Amy Nettleton, said: "The accessibility of shows such as Crufts... is such that the general public can wander in and out of the dogs' benches and approach any dog, so to keep an eye on everybody who came up and spoke to the dogs is very difficult."

Ms Nettleton described her family as "just devastated and beside themselves".

"The sensationalisation that the media has portrayed today - that Jagger was worth £50,000 - is beyond ridiculous," she said.

"Jagger, to his family, was priceless and he was also used, not only as a family pet but as pet therapy."

She said his owners took him into elderly care homes.

"He would sit there and give the residents some delight in him just being around."

The Kennel Club said it was awaiting a toxicology report from Belgian police. It said it had not received any other reports of sickness in dogs at Crufts.

'The biggest in the world'

Image copyright PA

Crufts is run by The Kennel Club, the UK's largest organisation dedicated to pedigree and crossbreed dogs

It brands the annual event as "the world's largest dog show"

Almost 21,500 dogs competed this year at Birmingham's Genting Arena, among them 2,987 dogs from overseas

The show began in 1891

Knopa, a Scottish Terrier (pictured above), was awarded the prestigious Crufts Best in Show title on Sunday

The winner of Best in Show gets £100 - The Kennel Club said the prestige was more important than the prize money

The club said a show-class Irish setter puppy could sell for "hundreds of pounds"

Ms Lauwers wrote on her Facebook page: "To person who has done it, hope you can sleep well knowing you have killed our love, family member and best friend to our son."

Image copyright Dee Milligan-Bott Image caption Co-owner Dee Milligan-Bott said she did not think a fellow competitor was responsible

Her husband Willem said she was due to give a statement to police later.

Caroline Kisko, Kennel Club secretary, said: "The Kennel Club is deeply shocked and saddened to hear that Jagger the Irish setter died some 26 hours after leaving Crufts.

"We have spoken to his owners and our heartfelt sympathies go out to them.

"We understand that the toxicology report is due and until that time, we cannot know the cause of this tragic incident. "

Image copyright Getty Images Image caption The Kennel Club, which organises Crufts, said it was "deeply saddened" to hear the news about Jagger

TV presenter Clare Balding, who had been hosting Channel 4's coverage of the event, tweeted: "Everyone at #Crufts2015 horrified at death of Irish Setter Jagger & post-mortem found poison. Awful for all concerned."

Vet Steve Leonard said such incidents were "thankfully rare".

"Obviously they have found a foreign substance in the dog's stomach," he said.

Human forensic techniques would probably be used to establish what the substance was, he said, as such testing went beyond what vets would normally deal with.

"Your heart goes out to the poor owner and what they must be going through," he said.

West Midlands Police said officers had not received any complaint "at this stage" or been asked to investigate an allegation involving the death of a dog in Belgium.

A police spokeswoman said: "If, following toxicology results in Belgium, the force is formally asked to conduct inquiries into the circumstances surrounding the death of the animal, an investigation will take place by officers in conjunction with Crufts and the NEC."