cattle

Although California dairy farmers anticipated a bird flu mortality rate of less than 2%, some say between 10% and 15% of infected cattle are dying.

In Roriak, there is no data available about the quality of the water the herders drink, but they fear pollution is making their cattle sick.

Unity State’s agriculture minister blames the deaths of more than 100,000 cattle in the last two years on the floods combined with oil pollution.

Dr Lizzy Pinkerton from the Belfast Hills Partnership said cattle were "basically the conservation tool" on the hills, where they help manage vegetation to support a healthy biodiversity.

A disease spread in dog poo could spell disaster for cattle near walking routes on the Belfast hills, conservationists have warned.