Effect of curing conditions and harvesting stage of maturity on Ethiopian onion bulb drying properties

The study was conducted to investigate the impact of curing conditions and harvesting stageson the drying quality of onion bulbs. The onion bulbs (Bombay Red cultivar) were harvested at three harvesting stages (early, optimum, and late maturity) and cured at three different temperatures (30, 40 and 50 oC) and relative humidity (30, 50 and 70%). The results revealed that curing temperature, RH, and maturity stage had significant effects on all measuredattributesexcept total soluble solids

Medición del grado de resiliencia de los sustentos de los hogares y de la seguridad alimentaria en ambientes de riesgo etíopes

The purpose of this case study, conducted in Amhara region of Ethiopia, is to contribute to ef forts to measuring and assessing resilience properties of household livelihoods constructed in the risky environments. It provides new insights for assessing livelihood vulnerability and designing resilience building programs in areas of protracted food crisis. Based on resilience theory as applied to social-ecological systems with an application of Modern Portfolio Theory, we adapted and measure the four properties of resilience to livelihood systems and tested the expected relationships between system properties as predicted by resilience theory. Household livelihood systems exhibited the ex pected pattern of increasing connectivity with increasing wealth (food income). Similarly, household resilience to food insecurity improves with increasing diversity of livelihood options and diversity de clines with increasing connectivity of the system. This study demonstrates the use of a set of metrics for assessing resilience properties of household livelihoods based on key driving factors.Con este estudio de caso, realizado en la región de Amhara (Etiopía), se pretende contribuir a los esfuerzos para medir y evaluar el grado de resistencia de los sustentos económicos de los hogares construidos en ambientes de riesgo. Así, se proporcionan nuevos conocimientos para evaluar la vulnerabilidad de los medios de subsistencia y diseñar programas de fortalecimiento de la resiliencia en áreas de crisis alimentaria prolongada. Basándonos en la teoría de la resiliencia aplicada a los sistemas socioecológicos, y aplicando la teoría moderna de carteras, adaptamos y medimos las cuatro propiedades de la resiliencia a los sistemas de medios de subsistencia y probamos las relaciones esperadas entre las propiedades predichas por la teoría de la resiliencia. Los sistemas de sustento de los hogares exhibieron el patrón esperado de conectividad creciente con el aumento de la riqueza (ingresos alimentarios). Del mismo modo, la resistencia de los hogares a la inseguridad alimentaria mejora con el aumento de la diversidad de opciones de medios de subsistencia y la disminución de la diversidad a partir del incremento de la conectividad del sistema. Este estudio muestra el uso de un conjunto de métricas con el fin de evaluar las propiedades de resiliencia de los sustentos del hogar basado en factores clave de conducción

Evaluation and application of multi-source satellite rainfall product CHIRPS to assess spatio-temporal rainfall variability on data-sparse Western margins of Ethiopian Highlands

The spatio-temporal characteristic of rainfall in the Beles Basin of Ethiopia is poorly understood, mainly due to lack of data. With recent advances in remote sensing, satellite derived rainfall products have become alternative sources of rainfall data for such poorly gauged areas. The objectives of this study were: (i) to evaluate a multi-source rainfall product (Climate Hazards Group Infrared Precipitation with Stations: CHIRPS) for the Beles Basin using gauge measurements and (ii) to assess the spatial and temporal variability of rainfall across the basin using validated CHIRPS data for the period 1981-2017. Categorical and continuous validation statistics were used to evaluate the performance, and time-space variability of rainfall was analyzed using GIS operations and statistical methods. Results showed a slight overestimation of rainfall occurrence by CHIRPS for the lowland region and underestimation for the highland region. CHIRPS underestimated the proportion of light daily rainfall events and overestimated the proportion of high intensity daily rainfall events. CHIRPS rainfall amount estimates were better in highland regions than in lowland regions, and became more accurate as the duration of the integration time increases from days to months. The annual spatio-temporal analysis result using CHIRPS revealed: a mean annual rainfall of the basin is 1490 mm (1050-2090 mm), a 50 mm increase of mean annual rainfall per 100 m elevation rise, periodical and persistent drought occurrence every 8 to 10 years, a significant increasing trend of rainfall (similar to 5 mm year(-1)), high rainfall variability observed at the lowland and drier parts of the basin and high coefficient of variation of monthly rainfall in March and April (revealing occurrence of bimodal rainfall characteristics). This study shows that the performance of CHIRPS product can vary spatially within a small basin level, and CHIRPS can help for better decision making in poorly gauged areas by giving an option to understand the space-time variability of rainfall characteristics

Soil and irrigation water management : farmer’s practice, insight, and major constraints in Upper Blue Nile Basin, Ethiopia

This study assessed farmers’ soil and irrigation water management practices, perceptions, and major constraints at Koga, a large-scale irrigation scheme in Ethiopia. Key informant interviews, structured and semi-structured questionnaires, focus group discussions, and field visits were used for data collection. Soil samples were collected for the assessment of soil properties and a comparison with the respondents’ perception of soil-related constraints. A total of 385 respondents were involved in the questionnaire. All of the respondents had a good perception of soil acidity and its management strategies. Respondents’ perception was in line with the mean soil pH, soil texture, infiltration rate, exchangeable acidity, and soil organic carbon obtained from lab analysis and field tests. Soil acidity, unwise use of water, water scarcity, and lack of market linkages hampered the performance of the Koga irrigation scheme. Yet, respondents had a low awareness of irrigation water management. Farmers never used irrigation scheduling, but apply the same amount of water regardless of the crop type. As a result, low yield and water use efficiency were reported. To reduce soil acidity, an adequate lime supply for farmers with hands-on training on how to apply it would be desirable. Farmers should be aware of how to design effective irrigation scheduling and adopt water-saving management strategies

Genetic parameters for cow-specific digestibility predicted by near infrared reflectance spectroscopy

Digestibility traits included in this study were dry matter digestibility (DMD, g/kg), which was calculated based on the indigestible neutral detergent fibre (iNDF, g/kg of dry matter) content in faeces (iNDFf) and in diet (iNDFd), and iNDFf predicted directly from faecal samples by near infrared reflectance spectroscopy (NIRS). The data set was collected at three research herds in Finland and one in Norway including in total 931 records from 328 lactating Nordic Red Cattle and Holstein cows. Observations were associated with different accuracy, due to the differences in sampling protocols used for collecting faecal samples. Heritability estimates varied between different sampling protocols and ranged from 0.14 ± 0.06 to 0.51 ± 0.24 for DMD and from 0.13 ± 0.05 to 0.48 ± 0.18 for iNDFf. Estimated genetic standard deviations were 10.5 g/kg and 6.2 g/kg dry matter for DMD and iNDFf, respectively. Results of our study indicated that recording only the iNDF content in the faeces is sufficient to determine genetic variation in cows’ ability to digest feed. The coefficient of genetic variation for DMD was rather small (1.7%), but could be utilized if it is supported by a positive analysis of benefits over costs.Peer reviewe

The livestock sector transformation in Ethiopia: the fundamental role of animal identification, registration, data recording and traceability systems

Livestock production in Ethiopia is predominated by extensive production systems where animals graze in communal grazing lands that exposes to disease transmission and indiscriminate breeding. Intensive stall feeding occurs, mostly in peri-urban settings, with cows mainly fed on straw and limited fresh forages. Animal movement within the country for herd replacement poses disease risk due to lack of movement control. Export of live animals and animal products, mostly meat require traceability system which not only able to identify the animal and the premises, where they are raised, but also traces how they left such premises to the ultimate markets. Ethiopia has developed a road map for livestock information system which also requires household, farm, and animal level information. This paper describes and discusses the need for a harmonized national livestock identification, registration, and data recording system, review existing experiences in the country and elsewhere in Eastern Africa, based on which recommendations in the related areas are made. The critical place of animal identification, registration and data recording as the basis for animal and animal product traceability, disease control, genetic improvement of farmers’ animals, annual planning, acquisition of bank loan and insurance are outlined. The need and values of adopting standardized identification system, establish a centralized database, and data capture tools are articulated. In addition, for success, the importance of long-term commitment, at different levels, including the role of both the public and private sectors are emphasized. The role of government in enforcing the related laws and policies, the requisite organizational structure, infrastructure, and human capacity needs are also pointed out. Professional societies like the Ethiopian Society of Animal Production (ESAP), and Ethiopian Veterinary Association (EVA) are platforms to exhaustively discuss and promote establishment and implementation of national system for animal identification, registration, and data capture are underscored

Comparison of the global prevalence and trend of human intestinal carriage of ESBL-producing Escherichia coli between healthcare and community settings: a systematic review and meta-analysis

Objectives:The widespread intestinal carriage of ESBL-producing Escherichia coli (ESBL E. coli) among both patients and healthy individuals is alarming. However, the global prevalence and trend of this MDR bacterium in healthcare settings remains undetermined. To address this knowledge gap, we performed a comparative meta-analysis of the prevalence in community and healthcare settings.Methods:Our systematic review included 133 articles published between 1 January 2000 and 22 April 2021 and indexed in PubMed, EMBASE or Google Scholar. A random-effects meta-analysis was performed to obtain the global pooled prevalence (community and healthcare settings). Subgroup meta-analyses were performed by grouping studies using the WHO regions and 5 year intervals of the study period.Results:We found that 21.1% (95% CI, 19.1%-23.2%) of inpatients in healthcare settings and 17.6% (95% CI, 15.3%-19.8%) of healthy individuals worldwide carried ESBL E. coli in their intestine. The global carriage rate in healthcare settings increased 3-fold from 7% (95% CI, 3.7%-10.3%) in 2001-05 to 25.7% (95% CI, 19.5%-32.0%) in 2016-20, whereas in community settings it increased 10-fold from 2.6% (95% CI, 1.2%-4.0%) to 26.4% (95% CI, 17.0%-35.9%) over the same period.Conclusions:The global and regional human intestinal ESBL E. coli carriage is increasing in both community and healthcare settings. Carriage rates were generally higher in healthcare than in community settings. Key relevant health organizations should perform surveillance and implement preventive measures to address the spread of ESBL E. coli in both settings

Impact of Education on Knowledge and Practice of Kala Azar Preventive Measures among Seasonal and Migrant Agricultural Workers in Northwest Ethiopia.

Kala azar occurs among seasonal and migrant agricultural workers in northwest Ethiopia and accounts for almost 60% of the disease burden in the country. We conducted a quantitative study on the level of knowledge and practice of this vulnerable group in relation to kala azar transmission and acceptability of its vector control tools. A total of 403 workers were randomly selected from eight farms using a purposive sampling technique. Knowledge and practice scores were calculated based on 12 and 9 core questions, respectively. Binary logistic regression was used to identify factors associated with knowledge and practice. A large gap in knowledge of the disease and the vector was evident with 61.8%, 24.6%, and 13.6% of the workers having poor, moderate, and good levels of knowledge scores, respectively. Similarly, 95% of the seasonal workers reported poor level of use of protective measures against the bite of the sand fly vector. Good level of knowledge about kala azar and its sand fly vector was statistically associated with formal education (adjusted odds ratio [AOR] = 2.11; 95% CI = 1.17, 3.80; P < 0.05) and previous exposure to health education (AOR = 4.72; 95% CI = 1.99, 11.16; P < 0.001). Despite poor current knowledge and practice, a large proportion of the study participants showed interest in using vector control tools if made available, with 78% of the seasonal and migrant workers expressing some willingness to pay for different measures that can protect against sand fly bites. Therefore, we strongly recommend that comprehensive health education and vector control programs should be provided to these workers