Morphological divergence in the West African shorthorn Lagune cattle populations from Benin

Ahozonlin, Maurice Cossi; Dossa, Luc Hippolyte; Dahouda, M.; Gbangboche, A. B.

doi:10.1007/s11250-019-02071-1

Cited by 10 publications

(10 citation statements)

References 37 publications

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“…In addition, these values are higher than those recorded previously on the Muturu cattle in Benin and in other countries of West Africa but are close to those measured on zebu x taurin crossbreds products (Traoré, 2015;Traoré 2016;Daikwo, 2018;Ahozonlin, 2020). Animals from Ouémé had the lowest values for the traits measured, which were closed to the measurements made before on the Muturu cattle in Benin and in West-Africa (Sedogbo, 1993, Traoré, 2015, Traoré, 2016, Daikwo, 2018Ahozonlin, 2019). The observed physical differences between and within groups could not be attributed to the breeding conditions (breeding system, feeding, watering, health monitoring) because they are similar on all the study sites (Adoligbe et al, 2020a, Diogo et al, 2021, Hounkeala, 2021.…”

Section: Discussionsupporting

confidence: 82%

“…Same results were obtained from the cluster s study. In addition, these values are higher than those recorded previously on the Muturu cattle in Benin and in other countries of West Africa but are close to those measured on zebu x taurin crossbreds products (Traoré, 2015;Traoré 2016;Daikwo, 2018;Ahozonlin, 2020). Animals from Ouémé had the lowest values for the traits measured, which were closed to the measurements made before on the Muturu cattle in Benin and in West-Africa (Sedogbo, 1993, Traoré, 2015, Traoré, 2016, Daikwo, 2018Ahozonlin, 2019).…”

Section: Discussionsupporting

confidence: 79%

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Muturu Cattle Breed in Benin: Distribution, Phenotypic Diversity, Perception of Cattle Keepers and Implications for the Breed conservation

Adoligbé

Hounkeala

Djimènou

et al. 2022

GABJ

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The present work involved updating information on the Muturu cattle breed in Benin, in order to design a sustainable breeding management scheme for its conservation. A total of 108 farmers were interviewed and 216 adult cattle physically looking like Muturu cattle as described previously were sampled in 6 departments of Southern Benin spread over 4 agro-ecological zones. Forty-one (41) qualitative traits were assessed and 10 to 11 morphometric measurements were carried out using the Animal Genetic Resources Characterisation, Inventory and Management Tool. The proportions and means obtained were analysed respectively by analysis of variance and two-tailed Z tests contained in the Agricola package of the R analysis software. The results showed that the lowest morphometric measurements were obtained from the animals of the department of Ouémé. These values were similar to those reported earlier in Muturu cattle. However, the highest values were obtained on animals from Mono and Couffo departments and were close to the values reported on taurine zebu cattle previously. Herd clustering results revealed the existence of subgroups in the populations of Muturu cattle of the Atlantic and Mono departments. Subject to confirmation by molecular testing, this study revealed that currently, Muturu cattle are found in the departments of Ouémé, Plateau and Atlantic in Benin where populations from Ouémé department are physically the closest to breed as described previously. The department of Zou has almost no Muturu cattle, and the departments of Couffo and Mono are dominated by Zebu x Muturu crossbreds. It is important therefore to design a conservation programme for the breed where it’s still found, as its existence would probably be linked to the preferences of the cattle keepers and the local communities and to its capacity to overcome the challenges of these ecosystems.

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Section: Discussionsupporting

confidence: 82%

Section: Discussionsupporting

confidence: 79%

Muturu Cattle Breed in Benin: Distribution, Phenotypic Diversity, Perception of Cattle Keepers and Implications for the Breed conservation

Adoligbé

Hounkeala

Djimènou

et al. 2022

GABJ

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“…Additionally, the subdivision of the sheep population into four sub-populations in the hierarchical cluster analysis ( Fig 4 ) seems to reflect differences in the type of vegetation, climate, and humidity among phytogeographic zones. This result is likely to confirm the effect of environmental factors on the morphology of sheep [ 40 – 43 ] and transhumance and management practices. Many convergences with other reports on the measured morphological traits were found in the current study.…”

Section: Discussionmentioning

confidence: 54%

Morphological variability within the indigenous sheep population of Benin

et al. 2021

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Knowledge of both the genetic diversity and geographical distribution of animal genetic resources is a prerequisite for their sustainable utilization, improvement and conservation. The present study was undertaken to explore the current morphological variability within the sheep population in Benin as a prelude for their molecular characterization. From November 2018 to February 2020, 25 quantitative linear body measurements and 5 qualitative physical traits were recorded on 1240 adult ewes from the 10 phytogeographic zones that comprise the three vegetation zones of Benin. Fourteen morphological indices were calculated based on the linear body measurements. The collected data were first analyzed using multiple comparisons of least-square means (LSmeans), followed by generalized linear model (GLM) procedures, to explore the relationships among the measured morphometric traits and the 10 phytogeographic zones. Next, the presence of any genetic sub-populations was examined using multivariate analytical methods, including canonical discriminant analysis (CDA) and ascending hierarchical clustering (AHC). Univariate analyses indicated that all quantitative linear body measurements varied significantly (P<0.05) across the phytogeographic zones. The highest values (LSmean± standard error) of withers height (68.3±0.47 cm), sternum height (46.0±0.35 cm), and rump height (68.8±0.47 cm) were recorded in the Mekrou-Pendjari zone, the drier phytogeographic zone in the North, whereas the lowest values, 49.2±0.34, 25.9±0.26, and 52.0±0.35 cm, respectively, were recorded in the Pobe zone in the South. Multivariate analyses revealed the prevalence of four distinct sheep sub-populations in Benin. The sub-population from the South could be assimilated to the short-legged and that from the North to the West African long-legged sheep. The two other sub-populations were intermediate and closer to the crossbreeds or another short-legged sub-breed. The proportion of individuals correctly classified in their group of origin was approximately 74%. These results uncovered a spatial morphological variation in the Beninese sheep population along a South-North phytogeographic gradient.

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“…The Somba and Lagune represent indigenous African Savannah and Dwarf taurine in Benin, respectively. Both are characterized by stocky animals, resistant to diseases (especially trypanosome), and able to survive and produce in harsh environments ( Dossa and Vanvanhossou, 2016 ; Ahozonlin et al, 2020 ). The Somba cattle are the typical ancestral residue of West African Savannah Shorthorns that migrated to Togo, Ghana, and the Ivory-coast ( Rege, 1999 ).…”

Section: Introductionmentioning

confidence: 99%

Unraveling Admixture, Inbreeding, and Recent Selection Signatures in West African Indigenous Cattle Populations in Benin

et al. 2021

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The Dwarf Lagune and the Savannah Somba cattle in Benin are typical representatives of the endangered West African indigenous Shorthorn taurine. The Lagune was previously exported to African and European countries and bred as Dahomey cattle, whereas the Somba contributed to the formation of two indigenous hybrids known as Borgou and Pabli cattle. These breeds are affected by demographic, economic, and environmental pressures in local production systems. Considering current and historical genomic data, we applied a formal test of admixture, estimated admixture proportions, and computed genomic inbreeding coefficients to characterize the five breeds. Subsequently, we unraveled the most recent selection signatures using the cross-population extended haplotype homozygosity approach, based on the current and historical genotypes. Results from principal component analyses and high proportion of Lagune ancestry confirm the Lagune origin of the European Dahomey cattle. Moreover, the Dahomey cattle displayed neither indicine nor European taurine (EUT) background, but they shared on average 40% of autozygosity from common ancestors, dated approximately eight generations ago. The Lagune cattle presented inbreeding coefficients larger than 0.13; however, the Somba and the hybrids (Borgou and Pabli) were less inbred (≤0.08). We detected evidence of admixture in the Somba and Lagune cattle, but they exhibited a similar African taurine (AFT) ancestral proportion (≥96%) to historical populations, respectively. A moderate and stable AFT ancestral proportion (62%) was also inferred for less admixed hybrid cattle including the Pabli. In contrast, the current Borgou samples displayed a lower AFT ancestral proportion (47%) than historical samples (63%). Irrespective of the admixture proportions, the hybrid populations displayed more selection signatures related to economic traits (reproduction, growth, and milk) than the taurine. In contrast, the taurine, especially the Somba, presented several regions known to be associated with adaptive traits (immunity and feed efficiency). The identified subregion of bovine leukocyte antigen (BoLA) class IIb (including DSB and BOLA-DYA) in Somba cattle is interestingly uncommon in other African breeds, suggesting further investigations to understand its association with specific adaptation to endemic diseases in Benin. Overall, our study provides deeper insights into recent evolutionary processes in the Beninese indigenous cattle and their aptitude for conservation and genetic improvement.

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Morphological divergence in the West African shorthorn Lagune cattle populations from Benin

Cited by 10 publications

References 37 publications

Muturu Cattle Breed in Benin: Distribution, Phenotypic Diversity, Perception of Cattle Keepers and Implications for the Breed conservation

Muturu Cattle Breed in Benin: Distribution, Phenotypic Diversity, Perception of Cattle Keepers and Implications for the Breed conservation

Morphological variability within the indigenous sheep population of Benin

Unraveling Admixture, Inbreeding, and Recent Selection Signatures in West African Indigenous Cattle Populations in Benin

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