Abstract
Abstract The development of whole blood inoculation using field strains of Anaplasma marginale and Babesia bigemina for the immunisation of imported susceptible cattle in Trinidad is described. The method of screening affected cattle using formalinised blood samples stained by acridine orange and examined under a u.v. microscope is outlined. Cattle were inoculated with 5 ml of blood from selected donors. Temperature records of infected animals were maintained daily. The examination of formalinised blood samples showed that Babesia positive slides were detected from all animals between the sixth and eighth days when the majority of animals showed a pyrexia exceeding 40°C (104°F). Anaplasma positive slides were detected between the twenty-fifth and thirtieth days although there was no clear relationship between pyrexia and parasitaemia. The eighth and thirtieth days after inoculation are suggested as the optimal periods to screen formalinised blood samples from routinely infected animals. Treatment with phe...
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.