Results 111 to 120 of about 1,199 (148)
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Early Schizonts of Leucocytozoon caulleryi
The Journal of Parasitology, 1990Sporozoites of Leucocytozoon caulleryi were inoculated intravenously into 26-day-old specific pathogen-free chickens. Six days after inoculation, early schizonts were detected in lung, spleen, and thymus. They existed separately and were spherical or ovoid, 30-35 microns in diameter, and had well defined walls.
T, Isobe, K, Akiba
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Leucocytozoon spp : Leucocytozoonosis
2023La leucocytozoonosis es una parasitosis de las aves producida por especies de Haemosporida (Apicomplexa) pertenecientes a la familia Leucocytozoidae, de ciclo indirecto y de distribución mundial, transmitida por vectores dípteros hematófagos. Algunas especies han sido asociadas a brotes de enfermedad, e incluso muertes en aviarios, zoológicos y granjas
Garijo, Sergio Iván +3 more
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Crystalline inclusions in Leucocytozoon simondi
Canadian Journal of Zoology, 1971Vacuoles have been observed in haemosporidian ookinetes fixed in methanol and stained with Giemsa's (5) (Fig. 1). Electron microscopy studies on sporogony of Leucocytozoon simondi indicate that the "vacuoles" contain accumulations of crystalline material (8) (Fig. 3).
S S, Desser, W D, Trefiak
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ARE LEUCOCYTOZOON SAKHAROFFI SAMBON AND LEUCOCYTOZOON BERESTNEFFI SAMBON SYNONYMOUS?
Canadian Journal of Research, 1950The size of the gametocytes of a leucocytozoon in young crows shows a wide variation in birds obtained in different localities. The host cell nucleus of infected cells may be pushed to one side, almost surround the parasite, or be intermediate between these extremes.
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Sporogonic Development of Leucocytozoon smithi
The Journal of Protozoology, 1992The sporogonic development of Leucocytozoon smithi in its black fly vector was studied by light and electron microscopy and was compared with that of other haemosporidians. Within 18 to 24 h after ingestion of gametocytes by black flies, ookinetes passing through the midgut epithelium were observed.
E J, Steele, G P, Noblet, R, Noblet
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Cryopreservation of Leucocytozoon caulleryi Sporozoites
The Journal of Protozoology, 1988ABSTRACTLeucocytozoon caulleryi sporozoites that had been stored at ‐ 196° C or ‐80° C for 6 or 12 months in Eagle's minimum essential medium or Medium 199 supplemented with 5% glycerol and 10% chicken serum showed infectivity to chickens. Glycerol at a concentration of 10% and dimethyl sulfoxide at 10% and 5% were found to be ineffective ...
T, Moril +6 more
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Schizogonic Development of Leucocytozoon smithi
The Journal of Protozoology, 1992ABSTRACT The schizogonic development of Leucocytozoon smithi in the liver of experimentally infected turkey poults was examined by electron microscopy. Following intraperitoneal injection, sporozoites migrated to the liver and entered hepatic cells to become intracellular trophozoites.
E J, Steele, G P, Noblet
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Leucocytozoon (Haemosporida; Leucocytozoidae) of the Falconiformes
Canadian Journal of Zoology, 1977Falconiform-inhabiting species of Leucocytozoon are reviewed and a checklist of Falconiformes known to harbor Leucocytozoon is included. Morphological measurements were made from 11 falconiform species to examine the interspecific and intraspecific variations. These formed the basis for the redescription of gametocytes of L. toddi Sambon.
E C, Greiner, A A, Kocan
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Anemia in Ducks Infected with Leucocytozoon simondi*†
The Journal of Protozoology, 1966SYNOPSIS. Thirty‐four white Pekin ducklings were used to study the anemia associated with infection by Leucocytozoon simondi.The first appearance of gametocytes in the peripheral blood, as detected by thin smears, marked the onset of anemia. This anemia lasted for the duration of the initial parasitemia, usually reaching a low point early in the ...
R M, Kocan, D T, Clark
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Journal of Parasitology, 2013
Leucocytozoon spp. infections have been rarely studied in Neotropical countries. The apparently low prevalence of these parasites compared to the Nearctic regions suggests the absence of competent vectors; however, a 21.3% overall prevalence has recently been reported in non-migratory birds from the páramo region of Chingaza National Natural Park (NNP),
Ingrid A, Lotta +4 more
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Leucocytozoon spp. infections have been rarely studied in Neotropical countries. The apparently low prevalence of these parasites compared to the Nearctic regions suggests the absence of competent vectors; however, a 21.3% overall prevalence has recently been reported in non-migratory birds from the páramo region of Chingaza National Natural Park (NNP),
Ingrid A, Lotta +4 more
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