Seroprevalence and associated risk factors of bovine neosporosis in the Khomas region of Namibia

Onderstepoort Journal of Veterinary Research

Field Value
Title Seroprevalence and associated risk factors of bovine neosporosis in the Khomas region of Namibia
Creator Samkange, Alaster Chitanga, Simbarashe Tjipura-Zaire, Georgina N. Mutjavikua, Vimanuka G. Smith, Jan W. Neves, Luis Matjila, Tshepo
Subject Veterinary; Medicine; Parasitology seroprevalence; cows; risk factors; N. caninum; Khomas; Namibia
Description Neospora caninum is a coccidian parasite that occurs worldwide and is one of the most important causes of abortion, especially in cattle. However, no studies have been performed in Namibia to determine the N. caninum status in livestock. Therefore, this study aimed to determine the seroprevalence of N. caninum in cattle and the associated risk factors in the Khomas region of Namibia. A total of 736 sera were collected from cows in 32 farming establishments. These comprised 698 beef and 38 dairy cattle sera and were tested using a commercial enzyme-linked immunosorbent assay (ELISA) kit. Questionnaires were concurrently administered to determine possible risk factors associated with N. caninum seropositivity. A total of 42 sera were positive (all beef), giving an animal-level seroprevalence rate of 5.7%. Eight of the 32 establishments had at least one positive animal, giving a herd-level seroprevalence of 25%. There was no significant association between seropositivity and the presence of dogs, jackals, history of abortions, farm size, number of cattle or average annual rainfall. The establishments with moderate to high numbers of Feliformia were 9.8 times more likely to be seropositive to N. caninum than those with none to low levels of the former (p = 0.0245). The authors concluded that the seroprevalence level of N. caninum in the Khomas region was relatively low compared with other parts of the world and that the role of Feliformia in the epidemiology of bovine neosporosis needed to be further investigated.Contribution: Serological evidence of bovine neosporosis and the associated risk factors are reported in Namibia for the first time. This study contributes to the scientific body of knowledge on N. caninum in Africa, which is currently limited.
Publisher AOSIS
Contributor Meat Board of Namibia
Date 2023-04-05
Type info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion — Survey/Interview
Format text/html application/epub+zip text/xml application/pdf
Identifier 10.4102/ojvr.v90i1.2077
Source Onderstepoort Journal of Veterinary Research; Vol 90, No 1 (2023); 8 pages 2219-0635 0030-2465
Language eng
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Coverage Southern Africa Contemporary Age; gender; animals
Rights Copyright (c) 2023 Alaster Samkange, Simbarashe Chitanga, Georgina N. Tjipura-Zaire, Vimanuka G. Mutjavikua, Jan W. Smith, Luis Neves, Tshepo Matjila