Results 161 to 170 of about 3,404 (205)

Cryopreservation of infective particles of Theileria parva

International Journal for Parasitology, 1973
Abstract Cryopreservation of infective particles of Theileria parva. International Journal for Parasitology 3: 583–587. Infective particles of Theileria parva , the causative organism of East Coast fever of cattle, were obtained from infected Rhipicephalus appendiculatus ticks, either by using an in vitro feeding technique or by grinding the ...
M P, Cunningham, C G, Brown, M J, Burridge, R E, Purnell   +3 more
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Chemoprophylaxis of Theileria annulata and Theileria parva infections of calves with buparvaquone

Veterinary Parasitology, 1998
A clinical trial testing the prophylactic effect of a 5 mg kg-1 dose of buparvaquone on either Theileria annulata or Theileria parva experimental infections of calves demonstrated its efficacy for periods of at least seven days. The drug given 1 h or seven days before 50% lethal T.
G M, Wilkie, C G, Brown, B E, Kirvar, M, Thomas, S M, Williamson, L J, Bell-Sakyi, O, Sparagano   +6 more
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Studies on Macroschizonts of Theileria parva

Research in Veterinary Science, 1961
SUMMARY A series of measurements was made of the schizonts of Theileria parva in the hope that these criteria might be used in the differential diagnosis of the theilerial species. Macroschizonts were found to have an average size of 4.8 μ, which was smaller than expected. They contained from 1 to 85 nuclei, with an average of 8.
S.F. Barnett, D.W. Brocklesby, Brenda O. Vidler   +2 more
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Theileria parva: Significance of leukocytes for infecting cattle

Experimental Parasitology, 1978
Abstract Using an artificial feeding technique, infective particles of Theileria parva were harvested in bovine blood in capillary tubes from prefed female Rhipicephalus appendiculatus over a 2-hr period. Inoculations of this blood feed pool invariably resulted in the establishment of patent East Coast fever in autogeneic or syngeneic cattle, i.e.
C G, Brown, M P, Cunningham, L P, Joyner, R E, Purnell, D, Branagan, G L, Corry, K P, Bailey   +6 more
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Infection of bovine monocyte/macrophage populations with Theileria annulata and Theileria parva

Veterinary Immunology and Immunopathology, 1989
Infection and transformation of cells of the bovine immune system by Theileria annulata and T. parva were compared. Preliminary experiments with mammary gland macrophages indicated that they were permissive to infection by T. annulata but only to a limited extent by T. parva.
E J, Glass, E A, Innes, R L, Spooner, C G, Brown   +3 more
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The antitheilerial effects of Theileria parva parva reaction and recovery sera In vitro

International Journal for Parasitology, 1985
Abstract Peripheral blood leucocytes (PBL) of cattle were infected in vitro with the sporozoites of Theileria parva spp. The transformed cell lines were adapted to grow in sera from the PBL donors. The cattle were then infected with T. p. parva stabilate and either treated with parvaquone or the disease allowed to run its course. Sera harvested
T T, Dolan, D A, Stagg, L M, Njuguna
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Theileria parya: Kinetics of replication

Experimental Parasitology, 1969
Abstract The kinetics of replication of Theileria parva (Muguga) in the bovine host were studied using infections produced by 10 1 , 10 2 , and 10 3 ticks. It was found that the growth of the organism was exponential from at least days 11–21 and probably from the start of growth in the bovine host.
W F, Jarrett, G W, Crighton, H M, Pirie
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Immunization of Cattle Against Theileria Parva

1977
Throughout its distribution in East and Central Africa, East Coast fever (ECF) is considered to be the most important of the tick-borne diseases which inhibit the development of the livestock industry. At present, the only method of controlling the disease is by close-interval application of acaricides to cattle, in dips or sprays, to kill the tick ...
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Preliminary Experiments with Antigens of Theileria Parva (Theiler, 1904)

British Veterinary Journal, 1967
SUMMARY The agar gel precipitin test was used to study the antigens of Theileria parva. Fractions were prepared from pre- and post-infection blood and lymph glands from the same ox. Antisera were prepared on cattle by inoculating post-infection fractions prepared from blood and spleen in Freund’s adjuvant. At least four specific precipitin bands were
R N, Gourlay, D W, Brocklesby
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Growth of Theileria annulata and T. parva in tissue culture

Transactions of the Royal Society of Tropical Medicine and Hygiene, 1958
1. 1) Theileria annulata was grown in tissue culture for over 59 days from implants of infected spleen, lymph node or liver. Multiplication of the parasites occurred and the cultures were infective for cattle when tested after 17 and 42 days. This confirms earlier work by TsUR (Tchernomoretz), 1945. 2. 2) T.
D W, BROCKLESBY, F, HAWKING
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