Pastoralists' perceptions of feed scarcity and livestock poisoning in southern rangelands, Ethiopia

Poisonous Plants Seem to Affect Livestock in the Borana, Southern Ethiopia: An Ethnic-Toxicological Approach

Introduction

Toxic plants are plant species that cause harmful consequences to animals, including physical discomfort, decreased productivity, and death after being consumed or absorbed.

Objective

The study aimed to identify toxic plants in the area, assess their consequences, identify factors causing livestock predisposition to toxic plants, and identify control and prevention methods.

Methods

A cross-sectional study was conducted from July 2019 to June 2021 in the Dire, Dubluk, Yabello, and Moyale districts of the Borana Zone and to collect quantitative and qualitative data, a semi-structured questionnaire and focus group discussions (FGDs) were used.

Results

Thus, based on qualitative analysis, 95% of participants identified harmful plants in the area that could potentially pose significant health risks to animals, out of a total of 120 individuals (46 (38.33%) females and 74 (61.67%) males) in the study area. According to the quantitative study, 31 plants in the study area were identified as toxic to livestock. Among the identified toxic plants were Pavetta gardeniifolia (23.63%), Loudetia flavida (10%), Euphorbia tirucalli (1.36%), Solanum somalense (3.2%), Eragrostis cilianensis (17.72%), Sorghum arundinaceum (17.72%), Acokanthera schimperi (4.1%), Capparis tomentosa (3.63%), and Teclea salicifolia (2.27%). The main factors that exposed livestock to toxic plants were a lack of feed combined with nutritional deficiency (73.6%), sudden ingestion with grass (98.2%), and fresh evergreen and matured attractive whole parts of toxic plants (52.6%). About 41.1% respondents indicated that animal was predisposed during the rainy season. A 42.9% of respondents replied as livestock grazed frequently in the forest area/plateau can affect and cattle (72.8%), which were the most frequently affected animals.

Conclusion

The present study identified different poisonous plants for livestock and their responsible factors based on the community assessment and plant survey.

Recommendations

Therefore, more intervention on the major toxic principles and phytochemistry of the identified plants must be studied.

Effects of Climate Variability on Livestock productivity and Pastoralists Perception: The Case of Drought Resilience in Southeastern Ethiopia

This study examines the perception of the pastoral community on climate change and performance, resilience and adaptive capacity of livestock under climatic stress in southeastern Ethiopia. The study used a mixed research approach whereby quantitative and qualitative data were gathered from multiple sources to address the impacts of climate variability on livestock production and livelihood of pastoral-agro-pastoral communities of Guji zone. Data about pastoralist perception on climate change were collected from 198 randomly selected households using a semi-structured questionnaire. Furthermore, climate data were obtained from the national meteorological agency, and climatic water balance was assessed. The household survey result indicated increasing patterns of temperature (82.8%)and drought intensity (84.8%). Majority of respondents perceived decreasing trends of rainfall and feed availability. Similarly, the trend analysis of rainfall showed declining trends of annual (-4.7 mm/year), autumn (-4.5 mm) and winter (-0.54 mm). Rainfall Anomaly Index identifies 13 drought years over the past 32 years, of which 53.85% occurred between 2007- 2017. Significantly higher (p<0.01) cattle and small ruminants than camel per household died during the disastrous drought occurred in 2008/9 and 2015/16. Nonetheless, the result indicated significantly higher (p<0.01) amounts of milk yield (3.32 litre/day) of dairying camel during dry periods than cattle and small ruminants. Camel and goats are perceived as drought-resistant livestock species and cattle keepers shifting to have more camel and goat in response to prevailing drought in the study area. Poor attention is given to identify climate-smart/resilient livestock species and strains. Therefore, extensive investigations are required to select and identify purpose-specific camel and goat strains for drought-prone areas.

Examining local perspectives on the influence of climate change on the health of Hamer pastoralists and their livestock in Ethiopia

This study explores the perceived influence of climate change on the health of Hamer pastoralists and their livestock in south-western Ethiopia. A combination of focus group discussions and key informant interviews were conducted with Hamer communities as well as local health workers, animal health workers and non-governmental organisation (NGO) staff. Thematic framework analysis was used to analyse the data. Reductions in rangeland, erratic rainfall, recurrent droughts and loss of seasonality were perceived to be the biggest climate challenges influencing the health and livelihoods of the Hamer. Communities were travelling greater distances to access sufficient grazing lands, and this was leading to livestock deaths and increases in ethnic violence. Reductions in suitable rangeland were also precipitating disease outbreaks in animals due to increased mixing of different herds. Negative health impacts in the community stemmed indirectly from decreases in livestock production, uncertain crop harvests and increased water scarcity. The remoteness of grazing lands has resulted in decreased availability of animal milk, contributing to malnutrition in vulnerable groups, including children. Water scarcity in the region has led to utilisation of unsafe water sources resulting in diarrhoeal illnesses. Further, seasonal shifts in climate-sensitive diseases such as malaria were also acknowledged. Poorly resourced healthcare facilities with limited accessibility combined with an absence of health education has amplified the community’s vulnerability to health challenges. The resilience and ambition for livelihood diversification amongst the Hamer was evident. The introduction of camels, increase in permanent settlements and new commercial ideas were transforming their livelihood strategies. However, the Hamer lack a voice to express their perspectives, challenges and ambitions. There needs to be collaborative dynamic dialogue between pastoral communities and the policy-makers to drive sustainable development in the area without compromising the values, traditions and knowledge of the pastoralists.

Adaptive interventions for optimizing malaria control: an implementation study protocol for a block-cluster randomized, sequential multiple assignment trial

Background

In the past two decades, the massive scale-up of long-lasting insecticidal nets (LLINs) and indoor residual spraying (IRS) has led to significant reductions in malaria mortality and morbidity. Nonetheless, the malaria burden remains high, and a dozen countries in Africa show a trend of increasing malaria incidence over the past several years. This underscores the need to improve the effectiveness of interventions by optimizing first-line intervention tools and integrating newly approved products into control programs. Because transmission settings and vector ecologies vary from place to place, malaria interventions should be adapted and readapted over time in response to evolving malaria risks. An adaptive approach based on local malaria epidemiology and vector ecology may lead to significant reductions in malaria incidence and transmission risk.

Methods/design

This study will use a longitudinal block-cluster sequential multiple assignment randomized trial (SMART) design with longitudinal outcome measures for a period of 3 years to develop an adaptive intervention for malaria control in western Kenya, the first adaptive trial for malaria control. The primary outcome is clinical malaria incidence rate. This will be a two-stage trial with 36 clusters for the initial trial. At the beginning of stage 1, all clusters will be randomized with equal probability to either LLIN, piperonyl butoxide-treated LLIN (PBO Nets), or LLIN + IRS by block randomization based on their respective malaria risks. Intervention effectiveness will be evaluated with 12 months of follow-up monitoring. At the end of the 12-month follow-up, clusters will be assessed for “response” versus “non-response” to PBO Nets or LLIN + IRS based on the change in clinical malaria incidence rate and a pre-defined threshold value of cost-effectiveness set by the Ministry of Health. At the beginning of stage 2, if an intervention was effective in stage 1, then the intervention will be continued. Non-responders to stage 1 PBO Net treatment will be randomized equally to either PBO Nets + LSM (larval source management) or an intervention determined by an enhanced reinforcement learning method. Similarly, non-responders to stage 1 LLIN + IRS treatment will be randomized equally to either LLIN + IRS + LSM or PBO Nets + IRS. There will be an 18-month evaluation follow-up period for stage 2 interventions. We will monitor indoor and outdoor vector abundance using light traps. Clinical malaria will be monitored through active case surveillance. Cost-effectiveness of the interventions will be assessed using Q-learning.

Discussion

This novel adaptive intervention strategy will optimize existing malaria vector control tools while allowing for the integration of new control products and approaches in the future to find the most cost-effective malaria control strategies in different settings. Given the urgent global need for optimization of malaria control tools, this study can have far-reaching implications for malaria control and elimination.

Trial registration

US National Institutes of Health, study ID NCT04182126. Registered on 26 November 2019.

Indigenous medicinal uses, toxicity, and chemical composition of browsing plant used by camel in Ethiopia Somali Regional State: a survey

Camels (Camelus dromedarius) have access to different browsing plant that is a major source of feed and therapeutic value but also has the potential to cause poisoning to the camel. A survey was conducted between July and September 2017 to generate information on medicinal uses, toxicity, and chemical composition of major browsing plant in the Somali Regional State of Ethiopia. A total of 150 respondents were interviewed using a structured questionnaire, and supplementary information was gathered through field observation and focus group discussions. The study showed 13 medicinal plants as being used by the respondents for the treatment of various camel ailments. The common part of the plant used to treat various aliment was leaves followed by root and bark. Dermal was the preferred route of remedy application followed by oral. The respondents identified 10 major toxic browsing plants. Those plants affect camels mainly in the dry and early rainy seasons when feed supply is scarce. Yet, poisonous browsing plants were the bottleneck problem and a major cause of economic loss in camel production in all study districts despite controlling poisonous plants through the indigenous approach. In total, 12 browse plants relished by camels were subjected to the chemical composition analysis. Laboratory result shown the chemical composition of browsing plants relished by camels has disparity except for the dry matter, and they have moderate crude protein content. Hence, the present study implies that the identified medicinal and preferred browsing plants have a significant contribution in supporting camel production in the pastoral area, but the emphasis should be given to reduce/eradicate poisonous plants that cause acute illness and death of camel.