Baltenweck Isabelle, Cherney Debbie, Duncan Alan, Eldermire Erin, Lwoga Edda Tandi, Labarta Ricardo, Rao Elizaphan James Oburu, Staal Steven, Teufel Nils
International Livestock Research Institute, Nairobi, Kenya.
Cornell University, Ithaca, NY, USA.
Nat Plants. 2020 Oct;6(10):1242-1249. doi: 10.1038/s41477-020-00786-w. Epub 2020 Oct 12.
Livestock support the livelihoods of one billion people in Africa, Asia and Latin America, but the productivity of animals remains low, reducing the potential of the sector to support higher incomes and better nutrition. Improved livestock feeding has been identified as the most important step towards higher productivity. This scoping review assessed the evidence for the uptake of improved ruminant livestock feed options, the effect of this uptake on livestock productivity and the degree to which this improves smallholder farmer livelihoods. In total, 22,981 papers were identified, of which 73 papers were included in the final analysis after a rigorous double-blind screening review. Only papers that reported farmers' decision to use a new feed intervention were selected, thereby excluding feeding trials and participatory feed assessments. Of the 73 papers, only 6 reported combined evidence of adoption, effect on productivity and livelihood changes. A total of 58 papers looked at adoption, 19 at productivity change and 22 at livelihood change. This scoping review highlights the gap in evidence for the adoption of new livestock feeding practices and provides recommendations to support farmers' uptake of feed interventions.
畜牧业维持着非洲、亚洲和拉丁美洲10亿人口的生计，但动物的生产力仍然很低，这降低了该行业支持更高收入和更好营养的潜力。改善牲畜饲养已被确定为提高生产力的最重要步骤。本综述评估了采用改良反刍动物饲料选择的证据、这种采用对牲畜生产力的影响以及这对小农户生计改善的程度。总共识别出22981篇论文，经过严格的双盲筛选评审后，最终分析纳入了73篇论文。仅选择报告了农民使用新饲料干预措施决定的论文，从而排除了饲养试验和参与性饲料评估。在这73篇论文中，只有6篇报告了采用、对生产力的影响和生计变化的综合证据。共有58篇论文研究了采用情况，19篇研究了生产力变化，22篇研究了生计变化。本综述突出了采用新牲畜饲养方法的证据差距，并提供了支持农民采用饲料干预措施的建议。
