Health Risks Associated With Pesticide Residues in Sediments, Fish, and Plants From the Ouémé Valley in the Republic of Bénin

Pazou, Elisabeth Yehouenou Azehoun; Azehoun, Judicaël P.; Aléodjrodo, Patrick Edorh; Straalen, Nico M. van; Hattum, B. van; Gestel, Cornelis A.M. van

doi:10.1007/s00244-013-9895-3

Cited by 14 publications

(8 citation statements)

References 11 publications

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“…In Africa, pest control mainly relies on the use of chemical pesticides but this approach is not sustainable due to the development of resistance (Martin et al 2002;Carletto et al 2010;Houndété et al 2010;Agboyi et al 2016) as well as their impacts on the environment and on human health (Wilson and Tisdell 2001;De Bon et al 2014). Alarming studies in Ghana (Bempah et al 2012;Bempah et al 2016), Benin (Yehouenou et al, 2013), Senegal (Diop et al 2016) and in South Africa (Mutengwe et al 2016) highlight the risks Fig. 1 Diversity of protected cultivation techniques in SSA, plastic mulch on okras in Tanzania (a), organic mulch on African eggplants in Burundi (b), low insect proof nets tunnels on cabbages in Benin (c), shade nets on tomatoes in Senegal (d), tomato cultivation in a nethouse in Kenya (e) and cultivation of sweet peppers in a polyhouse in Tanzania (f) involved in consuming vegetables due to pesticide residues above the approved maximum residues levels (MLR).…”

Section: Introductionmentioning

confidence: 99%

Protected cultivation of vegetable crops in sub-Saharan Africa: limits and prospects for smallholders. A review

Nordey

Basset-Mens

Bon

et al. 2017

Agron. Sustain. Dev.

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Vegetable production in sub-Saharan Africa faces numerous agronomic constraints that will have to be overcome to feed the increasing population and to fight malnutrition. Technology transfer and the adoption of low-tech protected cultivation techniques affordable for smallholders are believed to be able to meet this challenge. Protected cultivation techniques are a set of agricultural practices aimed at artificializing the crop environment through the use of soil covers and/or plant covers to control pests and climatic conditions. Although protected cultivation techniques may increase the yield and quality of vegetable crops and extend their production periods worldwide, the transfer of these techniques in sub-Saharan Africa raises questions about their agronomical performances, their profitability but also their environmental impacts. Are low-tech protected cultivation techniques adapted to the sustainable production of vegetables by smallholders in sub-Saharan Africa? To answer this question, we present an overview of the agronomic, economic, and environmental performances of low-tech protected cultivation techniques in sub-Saharan Africa as reported in the literature. The major conclusions that can be drawn from the review are (1) low-tech protected cultivation techniques are not suitable in all climatic conditions in sub-Saharan Africa and need to be combined with other methods to ensure adequate pest control, (2) the profitability of protected cultivation techniques relies on the capacity to offset increased production costs by higher yields and higher selling prices to be obtained with off-season and/or higher quality products, (3) breaking with existing cropping systems, the lack of technical support and skills, and the limited access to investment funding are major obstacles to the adoption of protected cultivation techniques by smallholders (4) life cycle assessments conducted in northern countries suggested that more efficient use of agricultural inputs would offset the negative impacts of protected cultivation techniques if they are properly managed, but further studies are required to be sure these results can be extrapolated to sub-Saharan Africa context. (Résumé d'auteur

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Section: Introductionmentioning

confidence: 99%

Protected cultivation of vegetable crops in sub-Saharan Africa: limits and prospects for smallholders. A review

Nordey

Basset-Mens

Bon

et al. 2017

Agron. Sustain. Dev.

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“…Dichlorodiphenyltrichloroethane (DDT), one of the typical persistent organic pollutants, was used worldwide in agricultural pest control and vector-borne disease control. Although the use of DDT has been limited internationally, its presence in unchanged or modified forms is still observed in the environment (water, sediment, and soil) (Dai et al, 2014, Turgut et al, 2013, Tang et al, 2014, Veljanoska-sarafiloska et al, 2013) and can even be detected in fodder plants (Yehouenou et al, 2013) in the bodies of animals (Deribe et al, 2013) and humans (Pérez-Maldonado et al, 2013, Teeyapant et al, 2014). This finding is attributed to its persistence, bioaccumulation, toxicity, and physical–chemical capacity for long-range transport (Aneck-Hahn et al, 2007, Sadasivaiah et al, 2007, Skinner et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Effect of aerobic exercise intervention on DDT degradation and oxidative stress in rats

Xian²,

Wang

et al. 2017

Saudi Journal of Biological Sciences

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Male Wistar rats were randomly assigned into control (C), DDT without exercise training (D), and DDT plus exercise training (DE) groups. The rats were treated as follows: DDT exposure to D and DE groups at the first 2 weeks; aerobic exercise treatment only to the DE group from the 1st day until the rats are killed. DDT levels in excrements, muscle, liver, serum, and hearts were analyzed. Superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GSH-Px), and malondialdehyde (MDA) levels were determined. Aerobic exercise accelerated the degradation of DDT primarily to DDE due to better oxygen availability and aerobic condition and promoted the degradation of DDT. Cumulative oxidative damage of DDT and exercise led to significant decrease of SOD level. Exercise resulted in consistent increase in SOD activity. Aerobic exercise enhanced activities of CAT and GSH-Px and promoted MDA scavenging. Results suggested that exercise can accelerate adaptive responses to oxidative stress and activate antioxidant enzymes activities. Exercise can also facilitate the reduction of DDT-induced oxidative damage and promoted DDT degradation. This study strongly implicated the positive effect of exercise training on DDT-induced liver oxidative stress.

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“…There are two main types of soil: sandy and alluvial soils. The latter are the most fertile but are flooded for 6 months in the year, usually from June to November (Pazou et al, 2013). The main natural vegetation consists of grassy savanna, shrubby and swampy forests, and grasslands (Ali, Odjoubere, Tente, & Sinsin, 2014;Alimi et al, 2015).…”

Section: Study Areamentioning

confidence: 99%

Determinants of Crossbreeding Practices by Cattle Farmers in South Benin, West Africa: Implications for the Sustainable Use of the Indigenous Lagune Cattle Population

Ahozonlin¹,

Koura²,

Dossa³

2019

SAR

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While it is widely acknowledged that the small-sized West African Shorthorn taurine Lagune cattle is being increasingly crossbred with and replaced by large-sized zebus, little is known about the factors that influence farmers' crossbreeding decisions and selection practices. But this information is necessary for the development of strategies towards a rationale use and conservation of this unique African genetic resource. To fill this knowledge gap, we conducted, between September and November 2016, a questionnaire survey in the belt of this breed in South Benin. One hundred seventy-three cattle farms were surveyed. The binomial logistic regression approach was used to predict the likelihood of a Lagune cattle farmer to be willing to introduce zebus in his herd. The herds were composed of either Lagune only (82.1%), zebu only (4.0%), crossbred Lagune x zebu (1.2%), Lagune and zebu (9.2%) or Lagune and crossbred Lagune x zebu (3.5%). The low productivity of the Lagune cattle and the market demand for large-sized animals were the main farmers' motivations for crossbreeding. Farmers raising large herds of Lagune cattle under control mating system were more likely to adopt crossbreeding. The risk of dilution of the Lagune breed could be reduced by increasing awareness among farmers, improving their technical skills in herd management and empowering them to develop legal institutions, by-laws and collective actions for sustainable breed management. Farmers who have already adopted crossbreeding should be provided with appropriate services and technical assistance, whereas breed conservation initiatives should mainly focus on small purebred herds kept under control mating.

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Health Risks Associated With Pesticide Residues in Sediments, Fish, and Plants From the Ouémé Valley in the Republic of Bénin

Cited by 14 publications

References 11 publications

Protected cultivation of vegetable crops in sub-Saharan Africa: limits and prospects for smallholders. A review

Protected cultivation of vegetable crops in sub-Saharan Africa: limits and prospects for smallholders. A review

Effect of aerobic exercise intervention on DDT degradation and oxidative stress in rats

Determinants of Crossbreeding Practices by Cattle Farmers in South Benin, West Africa: Implications for the Sustainable Use of the Indigenous Lagune Cattle Population

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