A poultry value chain intervention promoting diversified diets has limited impact on maternal and child diet adequacy during the lean season in a cluster randomized controlled trial

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dc.creatorBecquey, Elodie
dc.creatorDiop, Loty
dc.creatorAwonon, Josué
dc.creatorDiatta, Ampa Dogui
dc.creatorGanaba, Rasmané
dc.creatorPedehombga, Abdoulaye
dc.creatorGelli, Aulo
dc.date2022-05
dc.date2024-04-12T13:37:34Z
dc.date2024-04-12T13:37:34Z
dc.date.accessioned2026-06-27T14:58:45Z
dc.descriptionBackground: SELEVER is a nutrition- and gender-sensitive poultry value chain project designed and implemented by international NGO Tanager which consists of poultry market facilitation and behavior change activities aiming at increasing poultry production and improving diets without free inputs transfer. Objectives: The study aimed at assessing the impact of SELEVER on diets of women and children during the lean season. Methods: Within a cluster-randomized controlled trial, 45 communes were assigned to one of three arms, including 1) SELEVER interventions; 2) SELEVER with an intensive hygiene and sanitation component (SELEVER + WASH); and 3) a control group without intervention. Two rounds of survey were conducted 2 years apart during the lean season. Primary dietary outcomes were the probability of adequacy (PA) of iron, zinc and vitamin A intakes, mean PA (MPA) of 11 micronutrients and individual dietary diversity score collected through quantitative 24-hour recall in longitudinal samples of women and index children (2–4 years old) in 1,054 households; and minimum acceptable diet in the repeated cross-sectional sample of their younger sibling aged 6–23 months. Impacts were assessed by intention-to-treat analysis of covariance. Results: Relative to control, SELEVER interventions (groups 1 + 2) increased the PA of iron intakes in women by 1.8 pp (P = 0.030). We found no further impact on primary outcomes, although eggs consumption increased in index children (+0.73 pp, P = 0.010; +0.69 kcal/d, P = 0.036). Across the three groups, we observed negative effects of SELEVER on the PA of zinc intakes in women relative to SELEVER + WASH (-4.1 pp, P = 0.038), and on a variety of secondary dietary outcomes relative to both other groups. The study was registered on the ISCRCTN registry (ISRCTN16686478). Conclusions: information-only-based value-chain interventions may not have meaningful positive effects on diets of women and children in the lean season in settings with largely inadequate diets. We found suggestive evidence that synergies between intervention components may have introduced heterogeneity in effects on diet.
dc.identifierhttps://hdl.handle.net/10568/141264
dc.identifier.urihttp://hdl.handle.net/123456789/91048
dc.languageen
dc.publisherElsevier
dc.relationhttps://doi.org/10.1016/j.jdeveco.2021.102776
dc.relationhttps://doi.org/10.1111/mcn.12818
dc.relationhttps://doi.org/10.4269/ajtmh.18-0333
dc.relationhttps://doi.org/10.1186/s13063-017-2156-4
dc.relationhttps://doi.org/10.2499/p15738coll2.134839
dc.relationhttps://doi.org/10.2499/p15738coll2.134866
dc.relationhttps://doi.org/10.2499/p15738coll2.133686
dc.relationhttps://doi.org/10.2499/p15738coll2.133726
dc.relationhttps://doi.org/10.2499/p15738coll2.133653
dc.relationhttps://doi.org/10.2499/p15738coll2.133434
dc.relationhttps://hdl.handle.net/10568/146367
dc.rightsOpen Access
dc.sourceBecquey, Elodie; Diop, Loty; Awonon, Josue; Diatta, Ampa Dogui; Ganaba, Rasmane; Pedehombga, Abdoulaye; and Gelli, Aulo. 2022. A poultry value chain intervention promoting diversified diets has limited impact on maternal and child diet adequacy during the lean season in a cluster randomized controlled trial. Journal of Nutrition 152(5): 1336–1346. https://doi.org/10.1093/jn/nxac034
dc.subjectvalue chains
dc.subjectmaternal and child health
dc.subjectpoultry
dc.subjectsupply chains
dc.subjectchild nutrition
dc.subjectnutrient intake
dc.subjectrandomized controlled trials
dc.subjectdiets
dc.subjectnutrition
dc.subjecttrace elements
dc.subjectbehaviour
dc.subjectdiet
dc.subjectdietary diversity
dc.titleA poultry value chain intervention promoting diversified diets has limited impact on maternal and child diet adequacy during the lean season in a cluster randomized controlled trial
dc.typeJournal Article

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Instituto Internacional de Investigación sobre Políticas Alimentarias (IFPRI)