Genetic trends for growth in the Gudali and Wakwa cattle breeds of Cameroon

Ebangi, A.L.; Erasmus, G.J.; Neser, F.W.C.; Tawah, CL

doi:10.4314/sajas.v30i4.3899

Cited by 2 publications

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“…Breed was defined according to phenotypic traits as either mixed breed (mixed Bos indicus ), exotic (any pure Bos taurus or crossbreeds Bos indicus x Bos taurus ), Fulani and Gudali [ 40 ]. While Fulani and Gudali are considered local breeds, the Gudali cattle has been systematically improved through a government-led programme over the last 50 years [ 49 ]; therefore, Fulani was considered the indigenous breed for the study area.…”

Section: Methodsmentioning

confidence: 99%

Seroepidemiology of Crimean-Congo Haemorrhagic Fever among cattle in Cameroon: Implications from a One Health perspective

et al. 2022

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Background Crimean-Congo Haemorrhagic Fever (CCHF) is a tick-borne viral zoonotic disease distributed across several continents and recognized as an ongoing health threat. In humans, the infection can progress to a severe disease with high fatality, raising public health concerns due to the limited prophylactic and therapeutic options available. Animal species, clinically unaffected by the virus, serve as viral reservoirs and amplifier hosts, and can be a valuable tool for surveillance. Little is known about the occurrence and prevalence of Crimean-Congo Haemorrhagic Fever Virus (CCHFV) in Cameroon. Knowledge on CCHFV exposure and the factors associated with its presence in sentinel species are a valuable resource to better understand transmission dynamics and assess local risks for zoonotic disease emergence. Methods and findings We conducted a CCHFV serological survey and risk factor analysis for animal level seropositivity in pastoral and dairy cattle in the North West Region (NWR) and the Vina Division (VD) of the Adamawa Region in Cameroon. Seroprevalence estimates were adjusted for sampling design-effects and test performance. In addition, explanatory multivariable logistic regression mixed-effects models were fit to estimate the effect of animal characteristics, husbandry practices, risk contacts and ecological features on the serological status of pastoral cattle. The overall seroprevalence was 56.0% (95% CI 53.5–58.6) and 6.7% (95% CI 2.6–16.1) among pastoral and dairy cattle, respectively. Animals going on transhumance had twice the odds of being seropositive (OR 2.0, 95% CI 1.1–3.8), indicating that animal movements could be implicated in disease expansion. From an ecological perspective, absolute humidity (OR 0.6, 95% CI 0.4–0.9) and shrub density (OR 2.1, 95% CI 1.4–3.2) were associated with seropositivity, which suggests an underlying viral dynamic connecting vertebrate host and ticks in a complex transmission network. Conclusions This study demonstrated high seroprevalence levels of CCHFV antibodies in cattle in Cameroon indicating a potential risk to human populations. However, current understanding of the underlying dynamics of CCHFV locally and the real risk for human populations is incomplete. Further studies designed using a One Health approach are required to improve local knowledge of the disease, host interactions and environmental risk factors. This information is crucial to better project the risks for human populations located in CCHFV-suitable ecological niches.

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Section: Methodsmentioning

confidence: 99%

Seroepidemiology of Crimean-Congo Haemorrhagic Fever among cattle in Cameroon: Implications from a One Health perspective

et al. 2022

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“…They are indicators of genetic and management progresses made and thus are important in evaluation of the efficiency of breeding and determining the success of a selection programme (Musani and Mayer, 1997;Hofgren and Schinckel, 1998;Ebangi et al, 2000). Genetic and environmental trends provide information about herd improvement over time and are a reflection of the herd's progress compared to the breed as a whole (Hofgren and Schinckel, 1998).…”

Section: Introductionmentioning

confidence: 99%

Genetics and environmental trends in growth performance of Horro (Zebu) and crosses of Holstein Friesian and Jersey cattle breeds

Abera¹

2017

Afr. J. Biotechnol.

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Genetic trends for growth in the Gudali and Wakwa cattle breeds of Cameroon

Cited by 2 publications

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Seroepidemiology of Crimean-Congo Haemorrhagic Fever among cattle in Cameroon: Implications from a One Health perspective

Seroepidemiology of Crimean-Congo Haemorrhagic Fever among cattle in Cameroon: Implications from a One Health perspective

Genetics and environmental trends in growth performance of Horro (Zebu) and crosses of Holstein Friesian and Jersey cattle breeds

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