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

Abstract

Toxic plants are plant species that cause harmful consequences to animals, including physical discomfort, decreased productivity, and death after being consumed or absorbed. 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. 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. 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. The present study identified different poisonous plants for livestock and their responsible factors based on the community assessment and plant survey. Therefore, more intervention on the major toxic principles and phytochemistry of the identified plants must be studied.