Haematology of Naturally Infected Trypanosoma evansi Cattle in Borno State, Nigeria: Alterations due to Body Condition Score, Breed, Age and Sex

Amina Mohammed Bello; Hassan  Abdulsalam; Halima Idrisa Gambo; Jamila Muhammad Dauda; Lawan Adamu; Modu Muhammad Bukar; Albert Wulari Mbaya; Godwin Onyemaechi Egwu

doi:10.5455/JRVS.20250414065913

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Original Article
Online Published: 26 May 2025

J Res Vet Sci. 2025; 5(3): 243-249

doi: 10.5455/JRVS.20250414065913

Haematology of Naturally Infected Trypanosoma evansi Cattle in Borno State, Nigeria: Alterations due to Body Condition Score, Breed, Age and Sex

Amina Mohammed Bello, Hassan Abdulsalam, Halima Idrisa Gambo, Jamila Muhammad Dauda, Lawan Adamu, Modu Muhammad Bukar, Albert Wulari Mbaya, Godwin Onyemaechi Egwu.

Abstract
Aim: The study aimed to ascertain the variations in the haematological parameters of cattle from the Nigerian state of Borno that were naturally infected with Trypanosoma evansi (T. evansi).
Methods: Three hundred and eleven (311) blood samples from apparently healthy cattle in different Local Government areas were collected from May to October 2018. The body condition score of each cattle was accessed using standard procedure. Information noted and recorded against the animal during sampling includes location, sex, age group, breed, and body condition score. Cattle blood samples from the study areas were considered positive for T. evansi once a stained blood smear showed an average-dimension spindled-shaped body, a centralized nucleus, an evolved wavy barrier, a floating flagellum, and an intermediate kinetoplast near the caudal end of the parasite.
Results: The T. evensi infection was found to cause a substantial decrease in PCV, Hb, and RBC counts of the infected cattle when compared to the uninfected cattle; however, the infected cattle’s leucocytes and WBC counts were significantly higher than the uninfected cattle. Also, there was no significant correlation (p > 0.05) found across T. evansi infection and changes in the haematological parameters and the breed, age, gender, and body condition score.
Conclusion: The present study revealed that infection with T. evansi has a negative effect on some of the haematological parameters (PCV, Hb, RBC, and WBC) in the infected cattle, in relation to body condition score, age, sex and breeds.

Key words: Body condition score, Borno, Cattle, Haematology, Trypanosoma evansi

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How to Cite this Article

Pubmed Style

Bello AM, Abdulsalam H, Gambo HI, Dauda JM, Adamu L, Bukar MM, Mbaya AW, Egwu GO. Haematology of Naturally Infected Trypanosoma evansi Cattle in Borno State, Nigeria: Alterations due to Body Condition Score, Breed, Age and Sex. J Res Vet Sci. 2025; 5(3): 243-249. doi:10.5455/JRVS.20250414065913

Web Style

Bello AM, Abdulsalam H, Gambo HI, Dauda JM, Adamu L, Bukar MM, Mbaya AW, Egwu GO. Haematology of Naturally Infected Trypanosoma evansi Cattle in Borno State, Nigeria: Alterations due to Body Condition Score, Breed, Age and Sex. https://www.wisdomgale.com/jrvs/?mno=252666 [Access: September 18, 2025]. doi:10.5455/JRVS.20250414065913

AMA (American Medical Association) Style

Bello AM, Abdulsalam H, Gambo HI, Dauda JM, Adamu L, Bukar MM, Mbaya AW, Egwu GO. Haematology of Naturally Infected Trypanosoma evansi Cattle in Borno State, Nigeria: Alterations due to Body Condition Score, Breed, Age and Sex. J Res Vet Sci. 2025; 5(3): 243-249. doi:10.5455/JRVS.20250414065913

Vancouver/ICMJE Style

Bello AM, Abdulsalam H, Gambo HI, Dauda JM, Adamu L, Bukar MM, Mbaya AW, Egwu GO. Haematology of Naturally Infected Trypanosoma evansi Cattle in Borno State, Nigeria: Alterations due to Body Condition Score, Breed, Age and Sex. J Res Vet Sci. (2025), [cited September 18, 2025]; 5(3): 243-249. doi:10.5455/JRVS.20250414065913

Harvard Style

Bello, A. M., Abdulsalam, . H., Gambo, . H. I., Dauda, . J. M., Adamu, . L., Bukar, . M. M., Mbaya, . A. W. & Egwu, . G. O. (2025) Haematology of Naturally Infected Trypanosoma evansi Cattle in Borno State, Nigeria: Alterations due to Body Condition Score, Breed, Age and Sex. J Res Vet Sci, 5 (3), 243-249. doi:10.5455/JRVS.20250414065913

Turabian Style

Bello, Amina Mohammed, Hassan Abdulsalam, Halima Idrisa Gambo, Jamila Muhammad Dauda, Lawan Adamu, Modu Muhammad Bukar, Albert Wulari Mbaya, and Godwin Onyemaechi Egwu. 2025. Haematology of Naturally Infected Trypanosoma evansi Cattle in Borno State, Nigeria: Alterations due to Body Condition Score, Breed, Age and Sex. Journal of Research in Veterinary Sciences, 5 (3), 243-249. doi:10.5455/JRVS.20250414065913

Chicago Style

Bello, Amina Mohammed, Hassan Abdulsalam, Halima Idrisa Gambo, Jamila Muhammad Dauda, Lawan Adamu, Modu Muhammad Bukar, Albert Wulari Mbaya, and Godwin Onyemaechi Egwu. "Haematology of Naturally Infected Trypanosoma evansi Cattle in Borno State, Nigeria: Alterations due to Body Condition Score, Breed, Age and Sex." Journal of Research in Veterinary Sciences 5 (2025), 243-249. doi:10.5455/JRVS.20250414065913

MLA (The Modern Language Association) Style

APA (American Psychological Association) Style

Bello, A. M., Abdulsalam, . H., Gambo, . H. I., Dauda, . J. M., Adamu, . L., Bukar, . M. M., Mbaya, . A. W. & Egwu, . G. O. (2025) Haematology of Naturally Infected Trypanosoma evansi Cattle in Borno State, Nigeria: Alterations due to Body Condition Score, Breed, Age and Sex. Journal of Research in Veterinary Sciences, 5 (3), 243-249. doi:10.5455/JRVS.20250414065913

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