Infectious enterohepatitis (blackhead)Blackhead has probably caused more losses to the turkey industry in this country than any other single disease....
A further inquiry into the source of the virus in blackhead of turkeys, together with observations on the administration of ipecac and of sulfurThat the ovum of Heterakis papillosa is an important source of the virus in the natural transmission of blackhead in turkeys is suggested by experimental evidence obtained in the present investigation....
Petrology of the signal hill and blackhead formations, avalon peninsula, newfoundlandDetailed studies on the Precambrian Signal Hill Formation and the overlying Blackhead Formation exposed between Flatrock and Ferryland reveal minor lithological variations....
Evaluation of blackhead preventive drugs with regard to growth and feed efficiency of turkeys. poultry sciHISTOMONIASIS (Blackhead) has been a problem to turkey producers for many years and is still considered one of the more important turkey diseases....
