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Original Article
Online Published: 01 Aug 2020
 


Clinical Observation on Three Nigerian Breeds of Sheep Experimentally Infected with Trypanosoma Vivax

Ibironke K. Oyewusi, Michael I. Takeet, Adewale O. Talabi, Adekayode O. Sonibare, Ebenezer B. Otesile.


Abstract
Livestock production has been continually challenged with trypanosomes of which Trypanosoma vivax is the most pathogenic cause and the least studied in sub-Saharan Africa. Five sheep of each of the three Nigerian breeds, viz: West African Dwarf (WAD), Yankassa and Ouda were intravenously infected with 2.5 × 106 Trypanosoma vivax per milliliter and monitored until the Packed Cell Volume (PCV) declined to 15% when they were treated with diminazene aceturate. Three animals of each breed served as the uninfected control. The parameters monitored were parasitemia, clinical signs, bodyweight, and PCV. Levels of parasitemia were not significantly different across the breeds. Thirteen out of fifteen infected sheep had fever three days pi, followed by signs of pale mucous membranes, enlarged lymph nodes, serous nasal discharge, loss of weight, and dullness at various days pi in all the infected sheep. There were no significant (p>0.05) differences between the weight of all infected animals in the three breeds. The mean PCV of infected sheep was significantly (P<0.05) lower than that of non-infected sheep as from 14 days pi to 21 days pi in all the breeds of sheep. The least decline in PCV occurred in WAD sheep (20.92%) compared to Yankassa (31.65%) and Ouda (30.36%). The field strain of mouse-infective T. vivax used had 99% homology with the diagnostic antigen gene of T. vivax (L25129 T and U43183) from GenBank. All the three Nigerian breeds of sheep are susceptible to T. vivax infection and WAD sheep are more tolerant (resilience) to T. vivax infection than Yankassa and Ouda sheep.
Keywords: Clinical observation, Sheep, Trypanosoma vivax

Key words: Clinical observation, Sheep, Trypanosoma vivax


 
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How to Cite this Article
Pubmed Style

Oyewusi IK, Takeet MI, Talabi AO, Sonibare AO, Otesile EB. Clinical Observation on Three Nigerian Breeds of Sheep Experimentally Infected with Trypanosoma Vivax. AJVS. 2020; 66(2): 67-73. doi:10.5455/ajvs.102158

Web Style

Oyewusi IK, Takeet MI, Talabi AO, Sonibare AO, Otesile EB. Clinical Observation on Three Nigerian Breeds of Sheep Experimentally Infected with Trypanosoma Vivax. https://www.alexjvs.com/?mno=102158 [Access: September 13, 2024]. doi:10.5455/ajvs.102158

AMA (American Medical Association) Style

Oyewusi IK, Takeet MI, Talabi AO, Sonibare AO, Otesile EB. Clinical Observation on Three Nigerian Breeds of Sheep Experimentally Infected with Trypanosoma Vivax. AJVS. 2020; 66(2): 67-73. doi:10.5455/ajvs.102158


Vancouver/ICMJE Style

Oyewusi IK, Takeet MI, Talabi AO, Sonibare AO, Otesile EB. Clinical Observation on Three Nigerian Breeds of Sheep Experimentally Infected with Trypanosoma Vivax. AJVS. (2020), [cited September 13, 2024]; 66(2): 67-73. doi:10.5455/ajvs.102158


Harvard Style

Oyewusi, I. K., Takeet, . M. I., Talabi, . A. O., Sonibare, . A. O. & Otesile, . E. B. (2020) Clinical Observation on Three Nigerian Breeds of Sheep Experimentally Infected with Trypanosoma Vivax. AJVS, 66 (2), 67-73. doi:10.5455/ajvs.102158


Turabian Style

Oyewusi, Ibironke K., Michael I. Takeet, Adewale O. Talabi, Adekayode O. Sonibare, and Ebenezer B. Otesile. 2020. Clinical Observation on Three Nigerian Breeds of Sheep Experimentally Infected with Trypanosoma Vivax. Alexandria Journal of Veterinary Sciences, 66 (2), 67-73. doi:10.5455/ajvs.102158


Chicago Style

Oyewusi, Ibironke K., Michael I. Takeet, Adewale O. Talabi, Adekayode O. Sonibare, and Ebenezer B. Otesile. "Clinical Observation on Three Nigerian Breeds of Sheep Experimentally Infected with Trypanosoma Vivax." Alexandria Journal of Veterinary Sciences 66 (2020), 67-73. doi:10.5455/ajvs.102158


MLA (The Modern Language Association) Style

Oyewusi, Ibironke K., Michael I. Takeet, Adewale O. Talabi, Adekayode O. Sonibare, and Ebenezer B. Otesile. "Clinical Observation on Three Nigerian Breeds of Sheep Experimentally Infected with Trypanosoma Vivax." Alexandria Journal of Veterinary Sciences 66.2 (2020), 67-73. Print. doi:10.5455/ajvs.102158


APA (American Psychological Association) Style

Oyewusi, I. K., Takeet, . M. I., Talabi, . A. O., Sonibare, . A. O. & Otesile, . E. B. (2020) Clinical Observation on Three Nigerian Breeds of Sheep Experimentally Infected with Trypanosoma Vivax. Alexandria Journal of Veterinary Sciences, 66 (2), 67-73. doi:10.5455/ajvs.102158




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