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

doi:10.5455/ajvs.102158

2025, Vol: 86

86Current Volume Online First Archive Aims and Scope Abstracting & Indexing Most Accessed Articles Most Downloaded Articles Most Cited Articles

« Previous Article

Original Article
Online Published: 01 Aug 2020

AJVS. 2020; 66(2): 67-73

doi: 10.5455/ajvs.102158

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

	ARTICLE TOOLS
	Abstract
	PDF Fulltext
	How to cite this article
	Citation Tools
	Related Records
	Articles by Ibironke K. Oyewusi Articles by Michael I. Takeet Articles by Adewale O. Talabi Articles by Adekayode O. Sonibare Articles by Ebenezer B. Otesile
	on Google
	on Google Scholar

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: May 03, 2025]. 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 May 03, 2025]; 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

APA (American Psychological Association) Style

About Alexandria Journal of Veterinary Sciences

Contact Information

How to cite this article