Search Results (1,395)

Aquaculture plays a key role in food security and rural development, yet small-scale producers face heterogeneous structural, economic, and institutional constraints. This study analyzes aquaculture producers’ perceptions of the main challenges affecting small-scale aquaculture in the province of Manabí, Ecuador. A total of 98 producers were surveyed, including 37.14% Backyard, 45.71% Transitional, and 17.14% Commercial farms, using a Likert-type questionnaire to assess the perceived importance of different constraints. A structured survey was administered to 98 producers, including 20 Likert-scale variables. Differences among systems were evaluated using non-parametric univariate tests (Kruskal–Wallis with Dunn post hoc comparisons), and multivariate techniques (Principal Component Analysis and discriminant analysis) were applied to identify underlying perception patterns. Significant differences were mainly associated with biological input supply, market conditions, and structural production constraints, particularly, between Backyard farms and the other systems. In contrast, feed costs, energy consumption, and regulatory requirements emerged as transversal constraints across all systems. Multivariate analysis identified two main perception dimensions associated with market/input factors and structural/managerial limitations, showing a moderate differentiation among systems, with partial overlap between Transitional and Commercial farms and clearer separation of Backyard farms. These findings provide insights into system-specific and transversal constraints, contributing to the design of more adaptive and context-sensitive governance strategies for small-scale aquaculture. Full article

The way land is managed and utilized restricts agricultural development and food production. The fragmentation of arable land, characterized by “many plots and small areas,” is unfavorable for moderate-scale agricultural management and food production supply. Based on survey data of grain farmers in the Yellow River Basin, this study employs methods such as 2SLS, PSM, and IVQR to analyze the impact of average plot size on farmers’ grain production efficiency and its mechanisms. It also examines the differentiated effects of expanding plot size on different types of farmers, regions, and crops. The results show the following: (1) Expanding the arable land plot size (ALPS) helps improve farmers’ grain production efficiency, thereby enhancing the quality and benefits of agricultural development. (2) Expanding plot size can affect grain production efficiency through multiple pathways, including promoting machinery use and agricultural technology adoption, reducing material and labor input costs, and increasing grain yields. (3) Expanding plot size is more beneficial to farmers with higher production efficiency and smaller operation scales, as it both “supports the strong” and has a “pro-smallholders” characteristic, with more benefits for farmers in the western region and those growing wheat. Therefore, in order to promote high-quality agricultural development and ensure national food security, policies should focus on addressing land fragmentation and appropriately expanding the average plot size for farmers, especially smallholders. Full article

The common bean (Phaseolus vulgaris L.) is of great food and economic importance in Brazil, but its productivity is highly affected by water deficit due to its superficial root system and short cycle. With the increase in prolonged droughts, irrigation has become a solution, albeit a costly one, for small farmers. In this scenario, bioinputs, such as Bacillus aryabhattai, represent a sustainable and low-cost strategy to improve crop performance under reduced irrigation conditions. The objective of this study was to evaluate the potential of B. aryabhattai to improve the agronomic performance of the common bean under reduced irrigation levels. A greenhouse experiment was conducted in randomized blocks with a 2 × 4 factorial design (presence/absence of B. aryabhattai and four irrigation levels: 40, 60, 80, and 100% of the ETc). Agronomic and productive variables were evaluated. The results showed better performance at 80 and 100% ETc, achieving 16 and 20 g per plant⁻¹. Inoculation increased water use efficiency by 13% and contributed to higher grain yield. It was concluded that rational irrigation management combined with the use of B. aryabhattai improves agronomic performance and water use efficiency under reduced irrigation levels. Full article

Moving toward sustainable energy in small-scale dairies is an indispensable requirement and a significant challenge in developing countries. This study investigates a solar-powered refrigeration system with heat recovery designed to address the energy challenges faced by small-scale dairy farmers in off-grid areas of developing nations. It presents a novel solar-powered refrigeration system with integrated heat recovery, experimentally optimized to simultaneously deliver heating and cooling while valorizing waste heat and synergistically integrating solar energy to establish a decentralized and energy-autonomous milk preservation system for off-grid applications. The proposed system successfully recovers an average of 55% of the heat rejected by the condenser, thereby delivering more than 1000 W of usable thermal energy necessary for milk pasteurization. The experimental findings showed a coefficient of performance of 4.7, representing a 43% improvement over conventional systems, and achieved a Carnot efficiency of 42%. In addition, the system yields an annual energy savings of 3650 kWh and reduces carbon emissions by 971 kg per year for a 50 L unit. These findings underscore the system’s substantial potential to enhance energy efficiency, promote sustainability, reduce spoilage, improve incomes, mitigate carbon emissions, and enhance local milk preservation capabilities within small-scale dairy operations, minimizing reliance on diesel or firewood, particularly in regions that are distant from access to grid energy. Full article

In the context of rural sustainability and poverty alleviation within the developing world, a key dilemma facing the international community is to identify suitable strategies and mechanisms to bring multiple stakeholders together to work in efficient and sustainable ways. This paper focuses on the Public–Private–Producer Partnership (4P), a model that involves cooperation between government agencies, business firms, and small-scale producers to foster mutual trust and enhance collaboration through infrastructure development and capacity building in the agricultural value chain. Drawing on evidence from China, Indonesia, Rwanda, Ghana, and Nigeria, this study examines the impact of 4P on crop productivity, agricultural infrastructure, market access, stakeholder empowerment, employment, the land tenure system, and household income. This paper combines value chain analysis, Theory of Change mapping, and both qualitative and quantitative evaluation techniques to assess how the 4P model functions in different institutional and ecological contexts. While the model promotes inclusive growth, it also faces challenges such as price volatility, insufficient long-term sustainability, and limited integration of smallholder farmers into formal value chains. The paper discusses policy implications for improving the 4P model’s effectiveness in poverty alleviation and local economic development, highlighting the importance of better governance structures, financial mechanisms, and market stability. This paper sheds new light on inclusive, justified, and sustainable collaboration mechanisms for participatory agencies and individuals. Full article

One of the most important aspects of animal production is the reproductive behavior, where a widely used strategy in small ruminants is the “male effect”. However, the response to this effect can vary depending on several factors, including the social rank (SR) of both sexes. The objective of this study was to evaluate how SR influences morphometric and socio-sexual variables in Dorper sheep in Northern Mexico. Through behavioral tests, 33 rams and 59 ewes were divided into two groups taking into account their SR. Rams included high SR (HSR; n = 14) and low SR (LSR; n = 19), while ewes included HSR (n = 23) and LSR (n = 36). Morphometric response variables included age, live weight, body condition, thoracic circumference, wither height, presence of horns, and testicular circumference, whereas reproductive variables included estrus rate, ovulation rate, corpus luteum, left ovary, right ovary, pregnancy rate, and embryos’ number. The results showed no differences (p > 0.05) for the morphometric variables considered, whilst, regarding the reproductive variables, the LSR rams × HSR ewes group showed the highest number of embryos (p < 0.05), and the corpus luteum number was higher in the HSR rams × HSR ewes group (p < 0.05). However, no significant differences were found for the remaining variables (p > 0.05). Improving productive and reproductive performance can contribute to increased income for sheep farmers. Full article

Wildlife-based commodities increasingly contribute to regional development across the Global South, yet their governance frequently remains fragmented and weakly aligned with sustainable development objectives. The swiftlet nest trade is one of Indonesia’s most valuable wildlife-derived export sectors, generating substantial local income while raising regulatory, ecological, and sanitation challenges. This study examines how local governance arrangements shape sustainable development outcomes in the swiftlet nest trade in Kapuas District, Indonesia, with reference to Sustainable Development Goals (SDGs) 6 (Clean Water and Sanitation) and 9 (Industry, Innovation, and Infrastructure). Using a prospective policy analysis framework, the research applies the MULTIPOL (Multi-Policy Evaluation) method to evaluate the performance of alternative policy actions under three governance scenarios: regulatory strengthening, investment facilitation, and literacy and capacity building. Empirical data were generated through structured expert judgment and focus group deliberations involving local government authorities, quarantine agencies, small and medium enterprises (SMEs), swiftlet farmers, and exporters. The results show strong stakeholder convergence around regulatory strengthening as the most influential policy lever, particularly in improving compliance reliability, institutional coordination, and resource sustainability. Investment facilitation and literacy programs emerge as complementary interventions that become effective when regulatory coherence is established. These findings demonstrate that institutional coordination and policy sequencing play a critical role in aligning wildlife-based regional economies with sustainable development pathways. Full article

Collective action serves as a critical mechanism for addressing deficiencies in small-scale irrigation infrastructure and fostering a virtuous cycle of their operation and maintenance. Village leaders, as central figures in organizing and mobilizing farmers toward collective action, play a pivotal role in shaping participatory irrigation management (PIM) outcomes through their public leadership. Drawing on micro-survey data from 723 farm households across Ningxia, Shanxi, and Shandong provinces in China’s Yellow River basin, this study employed a multi-group structural equation model (SEM) to analyze the impact of public leadership on collective action in PIM. The findings indicate that: (1) public leadership is directly associated with collective action, with a direct effect of 0.530; (2) public leadership indirectly enhances collective action through mediating variables—cadre–mass relationship, institutional trust, and grassroots democracy—with an indirect effect of 0.045; and (3) the personal characteristics of village leaders moderate the influence of public leadership on collective action. Specifically, public leadership exerts a strong effect when leaders belong to the village elite, possess a least a high school education, or are not members of the village’s major clan. These insights suggest that policymakers should explicitly consider public leadership in fostering collective action within the PIM framework. Full article

Agro-ecosystem approaches are increasingly promoted as integrated solutions for sustainable land use, climate mitigation, and food security, yet concerns remain that market-based instruments may systematically exclude resource-poor smallholder farmers. Using microdata from 8894 households participating in Kenya’s long-running International Small Group and Tree Planting Program, this study examines how institutional and organizational arrangements shape access to agricultural carbon markets and associated sustainable land management practices. We document a participation paradox: farmers in the lowest income quartile exhibit significantly higher adoption than the wealthiest quartile (92.4% vs. 86.3%), challenging conventional resource-based targeting assumptions. Three distinct agro-ecosystem participation pathways are inferred using a Gaussian Mixture Model (GMM) estimated over a feature set of organizational, financial-access, and farm/household characteristics (income, farm size, financial access, crop diversity, livestock holdings, education, organizational membership, and leadership position). A Mainstream pathway (60.2%) reflects resource-driven adoption; an Innovative pathway (32.4%) is associated with high participation among low-income farmers through organizational membership, leadership, and collective action; and a Constrained pathway (7.5%) captures persistent exclusion. Organizational membership is strongly associated with high-adoption pathways, universally present among Mainstream and Innovative farmers and absent among Constrained farmers; readers should note that membership is partly definitional in the clustering procedure, so this association reflects the pathway construction as well as empirical patterns. Leadership roles are associated with substantially increased access to non-monetary benefit streams (OR = 2.13), including training, seedlings, and community infrastructure. These alternative compensation mechanisms are spatially clustered and strongly associated with enrollment, suggesting localized institutional capacity effects. Importantly, the Innovative pathway is associated with superior agro-ecosystem outcomes, including higher tree densities and a greater uptake of conservation farming practices, suggesting possible complementarities between inclusion and ecological performance. Women are overrepresented within this pathway, highlighting the equity potential of organizational channels. Overall, the findings suggest that strengthening local organizational infrastructure can simultaneously enhance land-use sustainability, climate mitigation, and livelihood inclusion. Given the cross-sectional observational design, all findings should be interpreted as associations rather than causal effects; the results offer actionable insights for designing agro-ecosystem programs that integrate governance, social equity, and ecological resilience in support of long-term food security. Full article

Managing weeds and improving soil health are priorities for South Dakota vegetable farmers. Clover (Trifolium spp.), used as a living mulch within and along cash crop rows, may aid in weed suppression and prevent soil erosion. However, prior research has shown living mulch often leads to yield decreases in cash crops. Research conducted in eastern South Dakota investigated the effects of four clover and four in-row soil management treatments on small-scale broccoli production. Whole plots of red (Trifolium pratense), white (Trifolium repens), and white × kura (Trifolium repens × ambiguum) clovers were direct-seeded in early spring; each clover plot and a bare ground control included four in-row management treatments: no-till + fabric, tilled + fabric, no-till, and tilled. Clover and weed growth were measured throughout the season. During the establishment year, 12.8 cm of precipitation was received, which effectively established the clover living mulch plots. However, in 2023, 5.6 cm of precipitation was received, which negatively affected the clover living mulch plots and created favorable conditions for weeds to outcompete the clover and broccoli. The results highlight the potential challenges and opportunities for managing clover cover crops as a living mulch during the first year of establishment in organic broccoli production. Full article

Streptococcus suis is an emerging zoonotic pathogen that typically causes bacteremia or meningitis in humans, whereas vertebral osteomyelitis with epidural abscess is exceedingly rare and may be missed. We describe a 65-year-old farmer with fever and severe low back pain after long-term bare-handed handling of raw pig lungs. Pre-treatment blood cultures yielded S. suis identified by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS). After transient improvement on empirical therapy, fever recurred with worsening lumbar pain. Contrast-enhanced magnetic resonance imaging (MRI) demonstrated multilevel thoracolumbar pyogenic spondylitis with an epidural abscess and a sub-ligamentous abscess beneath the posterior longitudinal ligament (PLL) extending from L2 to L5. Computed tomography-guided lumbar biopsy followed by tissue metagenomic next-generation sequencing (mNGS) detected S. suis, providing concordant evidence supporting pathogen involvement at the vertebral focus. The bloodstream isolate (SS-JX2025-01) was serotype 2, sequence type 7 (ST7). It remained susceptible to β-lactams and glycopeptides but was resistant to macrolide–lincosamide and tetracycline classes, consistent with erm(B), tet(O), tet(40), and ant(6)-Ia detected by whole-genome sequencing (WGS). Virulence profiling revealed an epf⁺/sly⁺/mrp⁻ pattern with multiple adhesins and immune-evasion factors, whereas canonical 89K pathogenicity island markers were absent. Core-genome phylogeny placed SS-JX2025-01 within the Chinese ST7 lineage associated with previous outbreaks. This biopsy-supported case expands the clinical spectrum of invasive S. suis infection, highlights the value of tissue mNGS as an adjunct for supporting deep-seated foci in zoonotic infections, and underscores the importance of occupational prevention in small-scale farming households. Full article

This study investigates the typology of the pastoral farming systems in the arid region of southern Tunisia, with a particular focus on the governorate of Tataouine. A field survey was conducted among 111 livestock farmers distributed across different agro-ecological zones. The typology of breeding systems was established using a Factor Analysis of Mixed Data (FAMD), which identified eleven dimensions explaining 69.74% of the total data variance. The first three dimensions accounted for 15.91%, 8.79%, and 7.67% of the variability, respectively, and were defined by herd composition, resource availability, and management strategies, including variables such as the number of goats, sheep, and camels, distance to water sources, infrastructure, reproductive practices, and workforce availability. Hierarchical clustering revealed three distinct systems: System 1, regrouping “Small Urban Farmers”, defined by small-scale operations relying on family labor, localized feed resources, and market-driven production targeting urban consumers; System 2, representing large livestock, composed of professionalized operations with improved infrastructure, hired labor, and transhumance practices to optimize resource use and productivity; and System 3, for herds with camels, characterized by extensive systems utilizing collective rangelands and camels to adapt to arid conditions and ensure ecological resilience. The results emphasize how ecological constraints, infrastructure, and spatial organization shape the diversity of these systems. This typology provides critical insights into the challenges and potential of livestock farming in arid environments and offers a foundation for designing targeted interventions to support the sustainability of pastoral systems under increasing environmental and economic pressures. Full article

Biochar presents an opportunity for soil productivity enhancement and carbon sequestration, yet its adoption in Neotropics remains limited. This study assessed biochar production feasibility, chemical composition, and structural constraints influencing adoption among farmers in Costa Rica. Biochar was produced using a Kon-Tiki kiln from Vochysia guatemalensis and Vochysia ferruginea, achieving carbon stability levels of 85.3% and 82.5%, respectively. A survey of 39 farmers examined biochar knowledge, farm characteristics, and perceived barriers to adoption. Logistic regression was used to identify key predictors of adoption, and Multiple Correspondence Analysis (MCA) examined relationships among categorical survey responses. Results showed that 68.4% of farmers lacked prior biochar knowledge, education levels varied, and farm sizes were predominantly small (64.1% < 10 ha). Logistic regression revealed significant associations between farm size and woody residues as a primary waste product (p = 0.017) and between education level and biochar awareness (p = 0.048). MCA explained 55% of the total variance, with adoption potential and structural barriers represented along separate dimensions. Interest in biochar, particularly for fertilizer use and carbon sequestration, aligned with adoption potential. These findings highlight the need for training, cooperative equipment-sharing models, and financial incentives to support biochar adoption and Costa Rica’s carbon neutrality objectives. Full article

This study quantifies spatial patterns and socio-economic drivers of wildlife-related losses at the agricultural–conservation interface in north-eastern South Africa. Using structured interviews with 249 farmers across five localities (Limpopo, Mpumalanga, KwaZulu-Natal), 173 respondents reported wildlife incursions. Crop damage was dominated by primates vervet monkeys and chacma baboons while leopards were the principal game/livestock predator. Subsistence households bore the heaviest burden: they accounted for most crop-raiding reports. They faced heightened food-security risks, whereas commercial operations suffered larger monetary losses but had greater capacity to deploy deterrents. Irrigation was associated with increased conflict incidence, and electrified fencing reduced losses for some subsistence farms but was not uniformly effective in high-risk localities. Larger household size correlated with greater exposure to incursions than small households. We recommend targeted, locality-specific, multi-species mitigation: prioritise support and maintenance for effective deterrents in vulnerable communal areas, integrate community engagement and monitoring, and align conservation policy with livelihood resilience to reduce inequitable impacts. Full article

Kid health problems are important welfare and productivity concerns in goat farming, yet herd-level patterns and management responses remain poorly described in many production systems. This cross-sectional study investigated farmer-reported kid health problems in Swedish goat herds and their associations with herd size and management practices. An online questionnaire distributed through national goat networks during 2024 yielded 684 completed responses, representing approximately one-third of Swedish goat keepers. Overall, 27.63% of farms (189/684) reported at least one kid health problem during the preceding three years, most commonly gastrointestinal disorders (22.8%), followed by joint-related (15.1%) and neurological conditions (9.0%). A subset of farms (6.0%) reported multiple concurrent types of kid health problems, indicating more complex herd health profiles. The proportion of farms reporting at least one kid health problem increased with herd size; large herds (>50 animals) were more likely to report health problems compared with small herds (RR = 1.51; 95% CI: 1.08–2.10), while medium-sized herds showed modest, non-significant increases. This herd-level outcome is inherently influenced by herd size, as larger herds have a higher probability of observing at least one case. Farms reporting multiple concurrent kid health problems more frequently implemented management measures such as isolation during kidding, early colostrum provision, and selenium supplementation, likely reflecting reactive adoption following previous health challenges rather than proactive prevention. Longitudinal studies using animal-level data are needed to clarify causal relationships. Full article