The mini-symposium included university researchers and industry veterinarians discussing blackhead in the United States and Europe, including insights on the disease pathogenesis and epidemiology, as well as an update on the current state of blackhead in the United States since the removal of nitarsone
from the market in January 2016.
The approval of a fourth drug, nitarsone [(4-nitrophenyl) arsonic acid, [C.
Little is known, however, about the potential arsenic exposure resulting from nitarsone use in turkey production.
Currently metronidazole and nitarsone are used commonly against blackhead disease in Pakistan.
meleagridis strains currently present in Pakistan seems to be more sensitive to nitarsone than metronidazole; hence metronidazole should be replaced with nitarsone for better prevention and control of black head disease in poultry.
And EFSA wants more studies to set safe levels for feeding Nitarsone
to turkeys to control blackhead disease.
Historical use of nitarsone in turkey production and of roxarsone in chicken production may thus have been a chronic source of arsenic exposure for the U.
A similar estimate is not available for nitarsone, but turkey industry representatives have reported that nitarsone was used seasonally during hot-weather months in young turkeys that were consumed during the fall/winter (Aubrey 2013).
28) The agency is currently considering a request to ban a fourth additive, nitarsone
Industry statements in the media have confirmed nitarsone
use in the turkey industry (Aubrey 2013), and the USDA estimates of per capita turkey consumption are increasing (USDA 2013).
2006) found nitarsone
but not roxarsone in commercially available chicken breasts.