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R esearch
(Published online:
30-06-2015)
22.
Hematocrit alterations and its effects in naturally infected
indigenous cattle breeds due to Trypanosoma spp.
on the
Adamawa Plateau - Cameroon
- A.
Mamoudou, V. K. Payne and S. L. Sevidzem
Veterinary World, 8(6): 813-818
doi:
10.14202/vetworld.2015.813-818
A. Mamoudou:
Department of Parasitology and Parasitological Diseases, School of
Veterinary Medicine and Sciences, University of Ngaoundere,
Cameroon;
mamoudou.abdoulmoumini@yahoo.fr
V. K. Payne:
Department of Animal Biology, Faculty of Science, University of
Dschang BP 67 Dschang, Cameroon;
VK.payne@yahoo.com
S. L. Sevidzem: Department of Animal
Biology, Faculty of Science, University of Dschang BP 67 Dschang,
Cameroon;
lendzele.jimmy@yahoo.com
Received:
02-03-2015, Revised: 22-05-2015, Accepted: 02-06-2015, Published
online: 30-06-2015
Corresponding author:
A.
Mamoudou, e-mail: mamoudou.abdoulmoumini@yahoo.fr
Citation:
Mamoudou A, Payne VK, Sevidzem SL (2015) Haematocrit alterations
and its effects in naturally infected indigenous cattle breeds due
to Trypanosoma spp. on the Adamawa Plateau -
Cameroon, Veterinary World 8(6): 813-818.
Abstract
Aim: An experimental study
was carried out on 148 naturally infected indigenous cattle breeds
with either single or mix infections of various species of
trypanosomes. The objectives of this study were to determine the
species of trypanosomes, observe their hematopathological
consequences on host-related risk factors and to determine the
packed cell volume (PCV) of the infected group.
Materials and Methods: The buffy coat method (BCM) which is a
variant of the hematocrit centrifugation method was used for the
parasitological and hematological analysis. The May
Grünwald-Giemsa method was also used for the identification of
different trypanosome species.
Results: The infection rate in accordance with the various
trypanosomes was as follows: Trypanosoma congolense +
Trypanosoma brucei (1.35%), Trypanosoma vivax + T.
brucei (1.35%), T. congolense + T. vivax
(8.11%), T. congolense + T. vivax + T. brucei
(8.78%), T. brucei brucei (11.48%), T. vivax
(20.94%), T. congolense (47.97%). The infection rate with
respect to breeds showed the following results - Brahman (1.0%),
Red Fulani (5.2%), White Fulani (6.5%) and Gudali (16.7%), with no
statistical significant difference (p>0.05). The combined mean PCV
of single as well as mix infections was not statistically
significant (p>0.05). The mean PCV of males (25.64±5.08
standard deviation [SD]) which was lower than that of females
(30.82±4.94 SD) was statistically significant (p<0.05). The body
condition of infected animals with sex showed that a greater
proportion of males with "Poor" and "Medium" conditions showed
high prevalence than females with the same conditions, with a
significant difference (p<0.05). However, females showed a "Good"
condition than males even though it was not statistically
significant (p>0.05). The PCV profile of the infected group showed
that the highest
proportion of infected animals had PCV of ≤31% than PCV >31%. The
mean weight of the animals was
(265.41±95.36 SD). A scatter-linear
plot of infected buffy coat against mean PCV showed a negative
parametric correlation.
Conclusion: Distinguished Trypanosoma spp.
pathogenicity, emaciation and weight loss related anemia, poor
body condition, sex and the response of different breeds to
various trypanosomes were highly affected and are of vital
importance in diagnosis and act as a contribution to future
control and treatment plans in this area.
Keywords: hematocrit, buffy coat method, body condition,
anemia, trypanosome, breed, cattle, Adamaoua Plateau - Cameroon.
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