Results 151 to 160 of about 4,371 (176)
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Oogenesis and egg shell formation in Heterakis gallinarum (Nematoda)
Journal of Zoology, 1971The structure of the developing ova and egg shell formation of Heterakis gallinarum has been described. The oogonia are small, undifferentiated cells which are arranged around a central cytoplasmic rachis. The oogonia and young oocytes are in cytoplasmic continuity with the rachis and it is suggested that the rachis may influence synchronous ...
D. L. Lee, P. Lešťan
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Histomonas meleagridis and H. wenrichi: Time of acquisition by Heterakis gallinarum
Experimental Parasitology, 1971Abstract Concurrent infection of young chickens with Histomonas -free Heterakis gallinarum less than 10 days old and Histomonas meleagridis , with or without H. wenrichi , did not result in the acquisition, retention, and subsequent transmission of either protozoan by the next generation of cecal worms. Concurrent infections of chicks or poults
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In Vitro Tests of Effect of Disinfectants on the Viability of Heterakis gallinarum Nematode Eggs During Embryogenesis [PDF]
Regulatory Mechanisms in BiosystemsAffecting the transmission of an infection, objects of the external environment become contaminated with pathogens as a result of their massive release by the definitive host during exogenous stages of parasites’ development, which is an important chain ...
Vitaliy Melnychuk +2 more
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Avian Diseases, 1999
Histomoniasis was diagnosed in a commercial turkey flock. All morbidity and mortality occurred in one house. Birds exhibited lesions characteristic for histomoniasis, and the diagnosis was confirmed by histopathologic examination. Affected turkeys were infected with moderate levels of Ascaridia dissimilis but not Heterakis gallinarum.
R A, Norton, F D, Clark, J N, Beasley
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Histomoniasis was diagnosed in a commercial turkey flock. All morbidity and mortality occurred in one house. Birds exhibited lesions characteristic for histomoniasis, and the diagnosis was confirmed by histopathologic examination. Affected turkeys were infected with moderate levels of Ascaridia dissimilis but not Heterakis gallinarum.
R A, Norton, F D, Clark, J N, Beasley
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On the Interaction between Heterakis gallinarum, Ascaridia galli, “Blackhead” and the Chicken
Journal of Helminthology, 1962Measured dosages of larvated eggs of the caecal nematode, Heterakis gallinarum and the small intestinal nematode, Ascaridia galli were fed to domestic chickens, in order to study the distribution of the numbers of worms developing and the influence on the worms and the chicks of the treatments in the experiments.
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[Effect of some trace elements on Heterakis gallinarum invasion].
Veterinarno-meditsinski nauki, 1976It was found that sodium chloride at the rate of 0.5 per cent in the mixtures lowers by 25 times the survival of the Heterakis helminths in birds, prevents the manifestation of verminous typhlitis, alters the ratio between the female and the male worms in favour of the latter, contributes to the increase in body weight and rises the level of the total ...
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Heterakis gallinarum (Schrank, 1788) nec Heterakis gallinae (Gmelin, 1790)
The Journal of Parasitology, 1949openaire +2 more sources
Heterakis gallinarum: Radioimmunoassay of antigenic molecules in parasite cuticular extracts
Experimental Parasitology, 1987S J, Zeakes, L S, Rodkey, M F, Hansen
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Does Parahistomonas wenrichi Affect the Fertility of Heterakis gallinarum?
The Journal of Parasitology, 1979openaire +2 more sources