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Prevalence of Tick Infestation of Sheep in Gwagwalada Area Council, Federal Capital Territory (FCT), Nigeria

Ejiofor, C.E.; Obeta, P.C.

Abstract

Globally, ticks serve as vectors of both animal and human pathogens, and their infestations are a major constraint to efficient and profitable sheep production in Nigeria. This study investigated the prevalence of tick infestation on sheep in Gwagwalada Area Council, Federal Capital Territory, Abuja. In a cross-sectional survey, 200 sheep were sampled for ticks from randomly selected homes and sheep markets within the study area. The ticks were identified morphologically using standard keys under a stereomicroscope. The results showed an overall prevalence of 14% tick infestation. Three tick species were encountered-Boophilus, Amblyomma, and Hyalomma-with prevalence rates of 66.67%, 26.98%, and 6.35%, respectively. Female ticks (66.7%) were more prevalent than males (33.3%). Tick infestation was unevenly distributed, with the Veterinary Teaching Hospital farm (47.62%) and Hajj camp (39.68%) recording the highest infestation rates, while Kutunku, Gwagwalada abattoir, and SDP sheep market recorded none. The relatively low prevalence of tick infestation and variations across locations suggest that environmental and management factors play crucial roles in tick infestation rates.

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International Journal of Recent Innovations in Academic Research This work is licensed under a Creative Commons Attribution 4.0 International License [CC BY 4.0] E-ISSN: 2635-3040; P-ISSN: 2659-1561 Homepage: https://www.ijriar.com/ Volume-9, Issue-4, October-December-2025: 51-54 51 Research Article Prevalence of Tick Infestation of Sheep in Gwagwalada Area Council, Federal Capital Territory (FCT), Nigeria *aEjiofor, C.E. and bObeta, P.C. a&bDepartment of Parasitology and Entomology, Faculty of Veterinary Medicine, University of Abuja, FCT, Nigeria *Corresponding Author Email: [email protected] Received: September 21, 2025 Accepted: October 12, 2025 Published: October 18, 2025 Abstract Globally, ticks serve as vectors of both animal and human pathogens, and their infestations are a major constraint to efficient and profitable sheep production in Nigeria. This study investigated the prevalence of tick infestation on sheep in Gwagwalada Area Council, Federal Capital Territory, Abuja. In a cross-sectional survey, 200 sheep were sampled for ticks from randomly selected homes and sheep markets within the study area. The ticks were identified morphologically using standard keys under a stereomicroscope. The results showed an overall prevalence of 14% tick infestation. Three tick species were encounteredBoophilus, Amblyomma, and Hyalomma-with prevalence rates of 66.67%, 26.98%, and 6.35%, respectively. Female ticks (66.7%) were more prevalent than males (33.3%). Tick infestation was unevenly distributed, with the Veterinary Teaching Hospital farm (47.62%) and Hajj camp (39.68%) recording the highest infestation rates, while Kutunku, Gwagwalada abattoir, and SDP sheep market recorded none. The relatively low prevalence of tick infestation and variations across locations suggest that environmental and management factors play crucial roles in tick infestation rates. Keywords: Sheep, Tick Infestation, Boophilus, Gwagwalada, Prevalence, Nigeria. Introduction Sheep (Ovis aries) are domesticated ruminant mammals that serve as important livestock worldwide. The term “sheep” usually refers to the domesticated species within the genus Ovis. They belong to the order Artiodactyla, which includes all even-toed ungulates and ruminants. Common classifications include lamb (juvenile), ewe (adult female), ram or tup (intact male), and wether (castrated male) (Smith et al., 2022). Sheep rearing is a vital agricultural practice globally, contributing significantly to economic growth and development (Sertse and Wossene, 2007; Adang et al., 2015). In Nigeria, sheep are integral to the ruminant industry, with an estimated population of 22.1 million (Lawal et al., 2012; Ola et al., 2017). Small ruminants represent about one-third of the nation’s agricultural gross domestic product (Lawal et al., 2012; Obi et al., 2014). Sheep provide protein (meat), manure, skin, and income, and also hold socio-cultural value (Okorafor et al., 2015; Ola et al., 2017). Despite their importance, limited research has been done on tick infestation of sheep in Gwagwalada Area Council. Previous tick ecology studies focused primarily on northern Nigeria (Sannar and Ilsey, 1956), leaving gaps in understanding regional infestation patterns and associated risk factors. Livestock farming plays a crucial role in Nigeria’s economy, employing over 80% of the population. Gwagwalada, a key agricultural hub in the Federal Capital Territory, relies heavily on small ruminant farming. However, data on tick species infesting sheep in the region remain scarce. This study seeks to provide comprehensive data on tick prevalence and species composition, supporting evidence-based control strategies to improve sheep health, productivity, and farm sustainability. Materials and Methods The research was conducted in Gwagwalada Area Council, located about 55 km southwest of Abuja between latitudes 8°55′N–9°00′N and longitudes 7°00′E–7°05′E. The area has Guinea Savannah vegetation and a tropical climate, with a wet season (April–October) and a dry season (November–March). Average temperatures range from 30°C to 37°C, conditions favourable for tick proliferation (Adamu et al., 2014). A cross-sectional study design was adopted, encompassing sample collection and laboratory identification. Between June and September 2024, ticks were collected from 200 sheep randomly selected from households International Journal of Recent Innovations in Academic Research 52 and markets. Preferred tick attachment site-ears, neck, perineum, and inguinal areas-were examined. Ticks were removed using fine-tipped forceps and preserved in 10% formaldehyde for identification (Walker, 2003). Ticks were identified morphologically based on features such as the capitulum shape, eye presence, festoons, and adanal plates (Walker, 2003). The species identified included Rhipicephalus (Boophilus) decoloratus, Amblyomma variegatum, and Hyalomma rufipes (Ogo et al., 2012). Data Analysis Data were analysed using Microsoft Excel 2015 and SPSS version 26. Descriptive statistics were used to calculate prevalence and percentage distributions, displayed using tables and charts. Results Out of 200 sheep examined, 28 were infested with ticks, yielding an overall prevalence of 14%. Three tick genera were identified: Boophilus, Amblyomma, and Hyalomma, with Boophilus being the most prevalent (66.67%). Female ticks constituted 66.7% of all collected specimens. Table 1. Tick infestation on sheep by sex. Sex Number of sheep sampled Number infested Prevalence (%) Female 33 18 9.0 Male 167 10 5.0 Total 200 28 14.0 Table 2. Tick species identified. Tick species Number identified Percentage (%) Boophilus sp. 42 66.67 Amblyomma sp. 17 26.98 Hyalomma sp. 4 6.35 Table 3. Tick prevalence by location. Location Number of sheep sampled Number of ticks % of ticks Veterinary teaching hospital farm 10 30 47.62 Hajj camp 42 25 39.68 Anagada livestock market 50 8 12.70 Kutunku 46 0 0 Gwagwalada abattoir 2 0 0 SDP sheep market 50 0 0 Discussion The 14% tick prevalence recorded in this study is higher than that reported among small ruminants in Makurdi (8.1%) (Ofukwu et al., 2008), but comparable to findings in Uli, southeast Nigeria (14.85%) (Obi et al., 2014). The differences may relate to climatic variations, sampling season, and management practices such as acaricide use and hygiene (Pegram et al., 1993). Three tick species were identified, with Boophilus being dominant, consistent with previous studies (Gaga et al., 1992; Tiki and Addis, 2011; Hador, 2015). The predominance of Boophilus aligns with its role as a vector for bovine babesiosis and anaplasmosis (de la Fuente et al., 2008). The presence of Amblyomma and Hyalomma-known vectors of Ehrlichia ruminantium, Theileria, and Crimean-Congo haemorrhagic fever virus-poses zoonotic risks (Walker, 2003; Zhao et al., 2020). Female ticks were more prevalent (66.7%) than males (33.3%), corroborating findings by Kabir et al., (2011) and Sonenshine and Roe (2014), who attributed this to longer feeding duration and visibility of females. Spatially, tick infestations were concentrated at the Veterinary Teaching Hospital farm and Hajj camp, possibly due to microclimatic factors and less rigorous tick control. Conclusion This study revealed a 14% tick infestation prevalence among sheep in Gwagwalada Area Council. The dominant tick species was Boophilus, followed by Amblyomma and Hyalomma. The high female-to-male tick ratio and non-uniform distribution suggest that management and environmental conditions play key roles in infestation dynamics. International Journal of Recent Innovations in Academic Research 53 Declarations Acknowledgements: We would like to acknowledge the entire staff of Department of Veterinary Parasitology and Entomology, Faculty of Veterinary Medicine, University of Abuja for extending their help during this work. We also wish to sincerely appreciate Mrs. Amaka Onyekanihu and Mrs. Bukola Arowolo for their invaluable assistance during the course of this research. Author Contributions: ECE: Concept, design, literature survey, prepared first draft of manuscript, implementation of study protocol, data collection, data analysis, manuscript preparation and submission of the article; OPC: Design of study, results interpretation, statistical analysis, editing and manuscript revision. 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