background: the aim of this study was to determine the prevalence, intensity, and species of internal and external parasites of native fowls from golestan province, north of iran. methods: during 2007, different organs of 26 and 24  adult female native fowls  collected   from hu­mid parts (gorgan, kord kooy, ramian and bandar gaz) and dry regions  (gonbad kavoos, and ban­dar torkaman) of golest...

Newcastle disease affects birds of different breeds and ages (turkeys, quails, guinea fowls, chickens). Given the possibility spreading by other species, including migratory birds, it makes more sense to immunize chickens during their long-distance migration. The main measure prevention remains its competent specific with use live inactivated vaccines, as specialists Khankai branch Khorol Veter...