Allen’s great national runner died of a respiratory infection that developed after his collapse in the race.
The 13 -year -old horse developed a “severe bacterial respiratory respiratory infection” which led to the start of sepsis because the horse's immune system was “seriously compromised” after running on Saturday.
The post mortem exams concluded that an “episode associated with the exercise” which led the 13 -year -old to collapse was no longer a factor at the time of his death on Tuesday.
The horse – which collapsed after jumping the last Saturday's centerpiece – died of complications linked to crying (a pulmonary infection), although the blood tests carried out on the day of the race showed no presence of the virus. Veterinarians think that it is not possible to separate the emergence from the secondary problem of its race in Aintree.
A declaration by the British Horseracing Authority said: “The conclusions of post mortem indicate that the episode associated with the exercise experienced by the horse after the race ended at the time of death.
“However, a severe bacterial respiratory infection (crying) occurred after the race which led to the deterioration of the horse on Monday evening, with the subsequent beginning of sepsis or endotoxemia (the release of harmful substances in the blood circulation of bacteria) capable of having been a key factor in the death.
“The blood tests taken from the day of the race indicate that the infection had not been present on the horse on the day of the race and was therefore developed after the race.”
After initially showing signs of recovery, Allen's Celebre state “was significantly deteriorated” and died on Tuesday.
Micheal Nolan, the Celebre of Allen rider, received a suspension of 10 days after the commissioners of Aintree decided that he had “continued in the race when the horse seemed to have no more giving and was clearly losing ground after the second closure”.
But the post mortem examination revealed that the effects of the incident were “concluded at the time of death”.
The infection led to the start of sepsis, which is “probably a key factor” in the cause of death.
The blood tests carried out on the day of the race indicated that the infection was not present on the horse on the day of the race.
The BHA said that the autopsy was just a “party” of their process of examining any death. Celebre d'Allen was a 125-1 shot at the National, won by Jockey Patrick Mullins on Nick Rockett.
It's great to see 🙌
Broadway Boy and Celebre d'Allen who ran to the Grand National Randox of yesterday come home after receiving the time and treatment they needed from our teams of experts. pic.twitter.com/rgsqkrwmtz
– Aintree Racecourse (@aniterices) April 6, 2025
The death of Celebre d'Allen caused criticism of animal rights activists, with an increase in animals and animal assistance attacking sport for having allowed him to run at the age of 13.
The BHA said that there were 24 horses of 13 since 2000 who participated in the Grand National, without previous deaths.
There were also concerns at the Grand National to Broadway Boywhich has undergone a strong fall in the 25th fence while leading the race.
The veterinarians and the staff rushed to the scene and he was confirmed on Sunday that, although the horse was “steep and painful”, he “returned to his home safely.
Jockey national winner suspended
The Winning Mullins Jockey was also prohibited this week after receiving an eight -day suspension for the overuse of the whip on the finish line.
Mullins, who led to the house a two-three for the father and coach Willie Mullinswas noted having used the whip eight times after the last fence, one more than the seven authorized in the jumps in the race.
His journey was returned to the whip examination committee, which chose to sanction the amateur jockey for having violated the limit, and it will be suspended for eight distinct days, especially on April 23 and 25.