This report describes outbreaks of histomonosis, a severe disease caused by the protozoan parasite Histomonas
meleagridis, which occurred over a period of 3 y on an organic farm in southern Germany.
In 1895, Smith reported that blackhead, an economically devastating enterohepatitis of turkeys, was caused by a protozoan called Amoeba meleagridis (now Histomonas
No evidence of Pasteurella multocida (fowl cholera) or Histomonas meleagridis (blackhead) were seen.
There was no visual evidence of Histomonas meleagridis (blackhead) in any of the livers or ceca.
Histomonas meleagridis (blackhead) was not visible on visual examination of the livers and ceca.
The occurrence of the protozoan parasite Histomonas meleagridis in the adult and eggs of the cecal worm Heterakis gallinae.
Metronidayol given once a month can help prevent the growth of the parasite Histomonas
meleagridis which causes blackhead.
The susceptibility of mule and muscovy ducks to "blackhead" disease caused by Histomonas
meleagridis was studied using an experimental intracloacal inoculation.
The spread of Histomonas
meleagridis infections through groups of turkeys in the absence of the cecal worm vector (Heterakis gallinarum) was studied in a battery cage model.
Blackhead, also known as enterohepatitis, is caused by a protozoan parasite called Histomonas