"By the time Eilidh read it I was down on one knee and proposed."
The microbiologist said yes and a picture was posted on social media, with Curlytop's message in the background.
Inspiration for the proposal came from a similar stunt Mr Gospel had seen online. He decided to go ahead with it - despite admitting he was nervous - adding it was "typical" of his sense of humour.
The cow is the 30-year-old bride-to-be's favourite out of the cattle, as she is "affectionate" and viewed as more like a pet.
Mr Gospel said Curlytop would get an invite to the wedding, but was unsure whether it would be accepted.
He added: "She's still not forgiven me for writing on her."