<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>Traditionally managed cattle constitutes the main source of animal protein to humans in Nigeria. However, seasonal migration in search of pasture exposes them to several vector-borne infections such as the African Animal Trypanosomosis (AAT), which limits their productivity. In this study, blood samples from 130 cattle in Plateau and Nasarawa states collected from May to June, 2021 were examined by the Polymerase Chain Reaction (PCR) and sequencing methods to determine the prevalence of pathogenic trypanosomes. Overall, the DNA of <italic>T. vivax</italic> was detected in 19 out of the 130 (14.6 %) samples examined by the PCR. However, using the micro-hematocrit centrifugation technique, motile haemoparasites were detected in only six (4.6 %, confidence interval [CI] 0.5—6.9 %) of the samples. The higher prevalence of <italic>T. vivax</italic> was recorded in samples sourced from the abattoir than in samples submitted from the field in Plateau state (16.7 % versus  11.5 %). However, the reverse was the case in Nasarawa state (2.9 % versus 37.5 %). The difference in prevalence of <italic>T. vivax</italic>  between  the  abattoir  and  field  samples was significant (P = 0.009) in Nasarawa state, but  not in Plateau state (P = 0.55). The mean PCV (Packed  Cell Volume) of the trypanosome infected animals was  lower than that of the non-infected animals, but the difference  was  not  significant  (P = 0.29).  The  internal  transcribe spacer region (ITS) nucleotide sequences of <italic>T. vivax</italic> generated in this study were 100 % identical to each other and formed a monophyletic cluster with the sequences of <italic>T. vivax</italic> from different countries in the  GenBank. AAT remains a major constraint to profitable cattle production and food security in Nigeria and deserves more attention.</p>
</abstract>

Traditionally managed cattle constitutes the main source of animal protein to humans in Nigeria. However, seasonal migration in search of pasture exposes them to several vector-borne infections such as the African Animal Trypanosomosis (AAT), which limits their productivity. In this study, blood samples from 130 cattle in Plateau and Nasarawa states collected from May to June, 2021 were examined by the Polymerase Chain Reaction (PCR) and sequencing methods to determine the prevalence of pathogenic trypanosomes. Overall, the DNA of T. vivax was detected in 19 out of the 130 (14.6 %) samples examined by the PCR. However, using the micro-hematocrit centrifugation technique, motile haemoparasites were detected in only six (4.6 %, confidence interval [CI] 0.5—6.9 %) of the samples. The higher prevalence of T. vivax was recorded in samples sourced from the abattoir than in samples submitted from the field in Plateau state (16.7 % versus  11.5 %). However, the reverse was the case in Nasarawa state (2.9 % versus 37.5 %). The difference in prevalence of T. vivax  between  the  abattoir  and  field  samples was significant (P = 0.009) in Nasarawa state, but  not in Plateau state (P = 0.55). The mean PCV (Packed  Cell Volume) of the trypanosome infected animals was  lower than that of the non-infected animals, but the difference  was  not  significant  (P = 0.29).  The  internal  transcribe spacer region (ITS) nucleotide sequences of T. vivax generated in this study were 100 % identical to each other and formed a monophyletic cluster with the sequences of T. vivax from different countries in the  GenBank. AAT remains a major constraint to profitable cattle production and food security in Nigeria and deserves more attention.

Molecular Detection and Characterization of Trypanosomes Infecting Traditionally Managed Cattle in the Tropic Warm Sub-Humid Zone of Nigeria

Folia Veterinaria

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Traditionally managed cattle constitutes the main source of animal protein to humans in Nigeria. However, seasonal migration in search of pasture exposes them...

Molecular Detection and Characterization of Trypanosomes Infecting Traditionally Managed Cattle in the Tropic Warm Sub-Humid Zone of Nigeria

Publié en ligne: 02 oct. 2022

Pages: 40 - 47

Reçu: 06 avr. 2022

Accepté: 11 juil. 2022

DOI: https://doi.org/10.2478/fv-2022-0025

Mots clés
cattle, ITS, mHCT, Nigeria, PCR, Trypanosomes

© 2022 J. Kamani et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Molecular Detection and Characterization of Trypanosomes Infecting Traditionally Managed Cattle in the Tropic Warm Sub-Humid Zone of Nigeria

Publié en ligne: 02 oct. 2022

Pages: 40 - 47

Reçu: 06 avr. 2022

Accepté: 11 juil. 2022

DOI: https://doi.org/10.2478/fv-2022-0025

Mots cléscattle, ITS, mHCT, Nigeria, PCR, Trypanosomes

© 2022 J. Kamani et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Mots clés
cattle, ITS, mHCT, Nigeria, PCR, Trypanosomes