People living near an intensive farm in Cornwall say their lives are being ruined by unbearable smells despite a series of calls for a cure.
Pawton Farm near Wadebridge has 1,000 cows kept permanently indoors.
Some nearby residents claim the smell from a series of slurry lagoons on the dairy farm is aggravating their health problems.
Six months after a public meeting on the issue, the owners say they are still working on improvements.
Mavis Pearce said: "It's like the smell of a sheep after it's been dead for 10 days.
"My daughter came up one day and she was physically sick when she got out of the car."
John Lomax said: "I have lived on agricultural land all my life and I've never smelt a farmyard smell like it before.
"I can't leave a window open at night."
But North Cornwall District Council officers said that out of 61 visits, they have not been able to detect a smell on 15 occasions.
Richard Zorichak, head of environmental health, said: "When we've turned up the smell has either gone or disappeared soon after we arrived and that suggests it is very transient."
Anthony Wills, one of the owners of the farm, said the slurry lagoons had only just started running at optimum efficiency and said he thought the problem would ease.