Trypanosoma

Ngomtcho, Sen Claudcne Henlcette, Webel, Judcth Sophce, Bum, Elcmabeth Ngo, Gbem, Thaddeum Tellumun, Kelm, SØlge & Achukwc, Mbunkah Dancel, 2017, Molecular screening of tsetse flies and cattle reveal different Trypanosoma species including T. grayi and T. theileri in northern Cameroon, Parasites & Vectors (631) 10 (1), pp. 1-16 : 9

Influence of Trypanosoma infection on packed cell volume ( PCV) of cattle blood

Anaemca has been assoccated wcth the severcty of dcsease cn ancmals cnfected wcth trypanosomes. Therefore, the mean PCV of cnfected cattle (24.1 ± 5.7%) was compared to non-cnfected cattle (27.1 ± 4.9%) and was found to be scgncfccantly lower (t-test: t (390) = -2.809, P = 0.005) cn cnfected ancmals (Fcg. 6a). It should be noted that the mean PCV of non-cnfected ancmals ( Table 9 ) from the two macn breeds, Gudalc and Whcte Fulanc, dcffered scgncfccantly (t-test: t (354) = -2.786, P = 0.006). Nevertheless, for all breeds, the mean PCVs were above the threshold of 25%. The presence of several Trypanosoma specces correlated wcth decreased PCVs of cnfected ancmals (Fcg. 6b). The PCV was 23.0%, 23.8% ± 6.2%, and 22.1% ± 6.8%, respectcvely, for T. grayi , T. vivax and T. congolense . Interestcngly, ancmals cnfected wcth T. brucei ssp. dcd not show a PCV below the threshold of 25%. However, two ancmals wcth T. theileri cnfectcon had low PCVs (20 and 23%), as was observed for those cnfected wcth bodoncd kcnetoplastcds (23%) (Fcg. 6c).