rdf-syntax-grammar
mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    title: Seroepidemiology of Babesia bovis, B. bigemina, Anaplasma marginale, bluetongue virus and Brucella abortus in cattle in five Mexican states
  name:
    name part: Teclaw, Robert Francis
    role:
      role term: creator
  name:
    name part: Wagner, G. G.
    role:
      role term: degree supervisor.
  name:
    name part: Craig, T.
    role:
      role term: degree committee member.
  name:
    name part: Crawford, R. P.
    role:
      role term: degree committee member.
  name:
    name part: Teel, P.
    role:
      role term: degree committee member.
  name:
    name part: Texas A & M University
    role:
      role term: degree granting institution.
  type of resource: text
  genre: bibliography
  genre: Academic theses
  origin info:
    place:
      place term: xx
    date issued: 1984
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: print
    extent: xi, 136 leaves : illustrations ; 29 cm
  abstract: Sera collected in 1982 and 1983 from 40 ranches in the northeastern Mexican states of Nuevo Leon, Tamaulipas, and Coahuila were tested for the presence of antibody activity to Babesia bovis, and B. bigemina using the indirect fluorescent antibody test, to Anaplasma marginale using the card test, to bluetongue virus using the immunodiffusion test and to Brucella abortus using the enzyme-linked immunosorbent assay. Serum samples from approximately 50 cattle on each of five additional ranches in the states of Nuevo Leon and San Luis Potosi were collected monthly from February through November of 1983. These sera were tested as above to determine incidence rates for infection with Babesia spp., A. marginale and bluetongue virus. Herd prevalence rates for either Babesia sp. ranged from 0.0 to 1.0 Average herd prevalence rates were 0.50 and 0.56 for B. bovis and B. bigemina, respectively.Herd prevalence rates ranged from 0.0 to 0.86 with a mean of 0.22 for A. marginale, from 0.07 to 1.0 with a mean of 0.42 for bluetongue virus and from 0.0 to 0.138 with a mean of 0.024 for B. abortus. Fourteen of the 40 herds had at least one B. abortus reactor. Seroconversions to Babesia spp. occurred on two of the five ranches sampled monthly. On one ranch, 5 of 37 animals originally negative to B. bigemina became positive in late summer and fall. On the other ranch, 32 of 36 animals seroconverted to B. bigemina throughout the study period with a moderate peak in mid-summer. Only 3 of 35 animals became seropositive to B. bovis on this ranch. Seroconversions to A. marginale were detected on 4 of the 5 ranches with the majority occurring on the ranches with the new Babesia infections. Bluetongue seroconversions occurred on all five ranches. New infections were detected during late winter and spring on four ranches and throughout the study period on the fifth ranch. The significance of the results for disease control programs is discussed.
  note: Typescript (photocopy).
  note: Vita.
  note: "Major subject: Veterinary Medical Sciences."
  note: Ph. D. in Philosophy Texas A & M University 1984
  note: Includes bibliographical references (leaves 117-135).
  subject:
    geographic code: n-mx---
  subject:
    topic: Brucellosis in cattle
  subject:
    topic: Veterinary Medical Sciences
  identifier: http://hdl.handle.net/1969.1/Dissertations-408945
  identifier: http://proxy.library.tamu.edu/login
  related item:
    location:
      url: http://hdl.handle.net/1969.1/Dissertations-408945
  related item:
    location:
      url: http://proxy.library.tamu.edu/login
  record info:
    record content source: TXA
    record creation date: 860411
    record change date: 20190325091559.0
    record identifier: in00000407658
    language of cataloging:
      language term: eng