Results 141 to 150 of about 4,050 (170)
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Effects of X-ray dosages on development of Heterakis gallinarum
Experimental Parasitology, 1966Abstract Exposure of unsegmented eggs of Heterakis gallinarum to X-irradiation (4,000 to 120,000 R) revealed that dosages up to 64,000 R retarded embryogenesis and 120,000 R appeared lethal. At 64,000 R, the majority of eggs required 15 days longer incubation to develop to infective larvae than did the controls.
D A, Ostlind, M F, Hansen
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Observations on the occurrence ofHeterakis gallinarumin laying hens kept on soil
Italian Journal of Animal Science, 2008 The occurrence of Heterakis gallinarum infection in a flock of Rhode Island Red laying hens is described. These hens were entirely kept in houses on a farm for commercial egg production, where a deep litter production system was adopted.
Cacciuttolo E., PAPINI, ROBERTO AMERIGO
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Post-Labial Sensory Structures on the Cecal Worm, Heterakis gallinarum
The Journal of Parasitology, 1976Sense organs that lie just posterior to the lips on the sides of the body of Heterakis gallinarum have been examined by scanning and transmission electron microscopy. The sense organs appear externally as a short peg surrounded by a collarlike elevation of cuticle.
K A, Wright, N, Hui
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Acquisition and liberation of Histomonas wenrichi by Heterakis gallinarum
Experimental Parasitology, 1968Abstract Simultaneous infections with Histomonas wenrichi Lund, 1963 and Heterakis gallinarum (Schrank, 1788) Madsen, 1949, were established in 15 chickens and seven turkeys. In six chickens and two turkeys, at least one female Heterakis developed eggs that transmitted H. wenrichi when fed to chicks and poults.
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Performance in Chickens and Turkeys of Chicken-Adapted Heterakis gallinarum
Journal of Helminthology, 19701. Helerakis gallinarum recovered from chickens, and apparently having lived exclusively or predominantly in chickens for several years, thrived better in chickens than in turkeys, when several hundred embryonated eggs were given in a single feeding.2.
E E, Lund, A M, Chute, S L, Myers
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Ultrastructure of intestinal cells of Heterakis gallinarum.
Angewandte Parasitologie, 1978Ultrastructure of intestinal cells of Heterakis gallinarum is described and compared with that of Ascaridia galli from ecomorphological point of view. The great analogy in bionomy and ecology of both worms is reflected in the great analogy of ultrastructural construction. A new organoid in the intestinal cells of H.
I, Zmoray, A, Gutteková
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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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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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