Princess Anne has said that gassing badgers would be the most humane way to cull the animals.
The Government is considering introducing gassing after a report said that shooting badgers would not bring their numbers down enough to stop them spreading tuberculosis in cattle.
"Most of the people who did it in the past will tell you that gas is a much nicer way of doing it, if that's not a silly expression," she told BBC One's Countryfile.
"How it works is that you go to sleep, basically."
The royal owns a heard of around 30 cattle and has lost 15 rare white park cows to bovine tuberculosis in the last two years.
More top news
Two ducklings trapped in a sewer were rescued when quick-thinking workers coaxed them back using an iPad recording of their mother's quack.
Gregory Maxwell and Brian Atkins joked they were taking their Australian victim on a 'bush tucker trial' before dumping him beside a road.
A sister who donated her late brother's face to a man who suffered a life-threatening, disfiguring injury has met him for the first time.