Tuberculosis can shut a farmer down "for many years" and "it really effects their business", a farming union told Daybreak.
Chairman of the National Farming Union, James Small gave a detailed description of what a farm could go through if one case of bovine TB is found, which he dubbed "really heartbreaking".
More top news
Teenagers are being tricked into sending inappropriate photographs through social media, police say.
June and Barry Steenkamp tell Good Morning Britain they accept the judge's decision but still do not believe Pistorius' version of events.
Fifteen British WW1 soldiers will be reinterred at the Commonwealth War Graves Commission cemetery today, 100 years after their deaths.