Andrew Selaledi Letlhogonolo, Mohammed Hassan Zahra, Manyelo Tlou Grace, Mabelebele Monnye
Department of Agriculture and Animal Health, College of Agriculture and Environmental Science, University of South Africa, Florida 1710, South Africa.
Department of Zoology and Entomology, Mammal Research Institute, Faculty of Natural and Agricultural Sciences, University of Pretoria, Hatfield 0028, South Africa.
Antibiotics (Basel). 2020 Sep 11;9(9):594. doi: 10.3390/antibiotics9090594.
Over the years the growth and health of food-producing animals have been enhanced by the use of antibiotics. These have helped reduce on-farm mortalities, lower incidences of diseases and more importantly improve productivity. Generally, the utilization of antibiotics in feed has been reevaluated since bacterial pathogens have established and shared a variety of antibiotic resistance mechanisms that can easily be spread within microbial communities. Multiple countries have introduced bans or severe restrictions on the non-therapeutic use of antibiotics. This has therefore warranted the urgent need for alternatives. Africa is facing its own challenges as it has been reported to be one of the continents with the highest number of foodborne diseases with approximately 91 million related diseases and 137,000 death per annum. Stakeholder and policy direction has been put in place to curb this escalation; however, the problem persists. The use of alternatives has been recommended and some successfully used in other countries as well as Africa, including pro- and prebiotics and phytochemicals. This then leads to the core aim of this review which is to (1) determine the extent to which antimicrobial-resistant pathogens have affected Africa, (2) assess the current measures put in place by Africa to reduces antimicrobial resistance and finally (3) explore the alternative use of antibiotics in poultry production. Improved sanitary conditions and farm biosecurity are important alternatives that could be adopted by farmers instead of depending on antibiotic drugs for disease control and prevention.
多年来,抗生素的使用提高了食用动物的生长速度和健康水平。这些抗生素有助于降低农场死亡率,减少疾病发生率,更重要的是提高了生产力。一般来说,由于细菌病原体已经形成并共享了多种抗生素耐药机制,这些机制很容易在微生物群落中传播,因此饲料中抗生素的使用已被重新评估。多个国家已出台禁令或严格限制抗生素的非治疗性使用。因此,迫切需要替代方案。非洲正面临着自身的挑战,据报道,非洲是食源性疾病数量最多的大陆之一,每年约有9100万例相关疾病,13.7万人死亡。已经制定了利益相关者和政策方向来遏制这种上升趋势;然而,问题依然存在。有人建议使用替代方案,其中一些在其他国家以及非洲已成功使用,包括益生菌和益生元以及植物化学物质。这就引出了本综述的核心目的,即(1)确定抗菌病原体对非洲的影响程度,(2)评估非洲目前为减少抗菌耐药性而采取的措施,最后(3)探索抗生素在禽类生产中的替代用途。改善卫生条件和农场生物安全是重要的替代方案,农民可以采用这些方案,而不是依赖抗生素药物来控制和预防疾病。