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Observations on the transmission of Theileria mutans in South Africa
1981
De Vos, A.J. | Roos, J.A.
Theileria mutans, 4 isolates obtained from geographically distant parts of South Africa by subinoculation of infected blood were readily transmitted to cattle by Amblyomma hebraeum, all attempts to transmit these isolates with Rhipicephalus appendiculatus were unsuccessful
Показать больше [+] Меньше [-]Antibody kinetics in response to vaccination against Babesia bovis
1981
James, M.A. | Kuttler, K.L. | Levy, M.G. | Ristic, M.
Babesia bovis, cattle, kinetics of specific indirect fluorescent antibody test titers and total serum IgG and IgM values after vaccination and challenge exposure, nonspecific suppression of total IgG and IgM values coinciding with period of peak parasitemia
Показать больше [+] Меньше [-]The retention of Babesia bigemina infection by Boophilus decoloratus exposed to imidocarb dipropionate during engorgement
1981
Gray, J.S. | Potgieter, F.T.
Babesia bigemina infection in population of Boophilus decoloratus cannot be eliminated in short term by treating cattle prophylactically with imidocarb dipropionate, Babesia retained by ticks for at least complete generation
Показать больше [+] Меньше [-]Studies on a bovine Babesia transmitted by Hyalomma marginatum rufipes Koch, 1844
1981
Gray, J.S. | De Vos, A.J.
Babesia occultans n. sp. originally obtained from engorged female Hyalomma marginatum rufipes collected from cattle in Northern Transvaal, transmission studies in laboratory strain of ticks and splenectomized cattle, morphological, serological, and cross-immunity studies distinguished parasite as previously undescribed species highly infective for H. marginatum rufipes but of low virulence in cattle, unsuccessful attempt to transmit transovarially with Boophilus microplus
Показать больше [+] Меньше [-]Isolation and transmission of an unidentified Babesia sp. infective for cattle
1981
Thomas, S.E. | Mason, T.E.
Babesia sp. in Hyalomma marginatum rufipes, laboratory transmission to susceptible cattle achieved both biologically (tick feeding) and mechanically (injection of infected blood), low pathogenicity, apparently not transmissible to horses
Показать больше [+] Меньше [-]Theileria? taurotragi: A probable agent of bovine cerebral theileriosis
1981
De Vos, A.J. | Bessenger, R. | Banting, L.F.
Theileria? taurotragi, probable cause of death of 4 calves with cerebral theileriosis: Transvaal
Показать больше [+] Меньше [-]Plasma alpha-fetoprotein concentrations in pregnant cows exposed to Sarcocystis cruzi, Campylobacter fetus, or Aspergillus fumigatus
1981
Baetz, A.L. | Crandell, S.E. | Schmerr, M.J.F. | Barnett, D. | Bryner, J.H.
Sarcocystis cruzi, pregnant cows, plasma alpha-fetoprotein concentrations, cannot be used as diagnostic tool for fetal death
Показать больше [+] Меньше [-]Efficacy of ivermectin against inhibited larvae of Ostertagia ostertagi
1981
Williams, J.C. | Knox, J.W. | Baumann, B.A. | Snider, T.G. | Kimball, M.G.
Ostertagia ostertagi, beef cattle, acquisition of inhibited larvae during winter and spring, efficacy of ivermectin against inhibited early 4th-stage larvae of O. ostertagi and other nematodes of abomasum and intestinal tract: Louisiana
Показать больше [+] Меньше [-]Attempts to transmit Anaplasma marginale with Hippobosca rufipes and Stomoxys calcitrans
1981
Potgieter, F.T. | Sutherland, B. | Biggs, H.C.
attempts to transmit Anaplasma marginale to cattle with field collections of Hippobosca rufipes were unsuccessful, 1 of 3 attempts to transmit organism with Stomoxys calcitrans was successful
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