Summary
This conceptual paper proposes an integrated feeding strategy for sustainable ovine production under drought stress, centring on alfalfa inoculated with salt-tolerant rhizobia combined with olive oil processing by-products. The authors outline a research framework to optimise symbiotic rhizobial strains for arid soils, improve alfalfa productivity, and evaluate potential effects on rumen metabolism and animal product quality. The approach aims to address feed security and production sustainability in water-limited contexts whilst valorising agricultural waste.
Regional applicability
The strategy is framed for developing countries and arid regions facing drought and feed scarcity; direct applicability to the United Kingdom's temperate climate and established livestock feeding systems is limited. However, the concepts of symbiotic strain selection and by-product valorisation may have transferable value for UK sustainability objectives and circular economy approaches to agri-food waste.
Key measures
Alfalfa yield in arid conditions; salt stress tolerance of Sinorhizobium meliloti strains; rumen fermentation parameters; milk and meat nutritional composition
Outcomes reported
The paper proposes a conceptual feeding strategy for sheep based on alfalfa inoculated with salt-tolerant rhizobia and supplemented with olive oil by-products to improve sustainability under drought conditions. It outlines plans to optimise symbiotic strains for arid soils and evaluate impacts on rumen metabolism and nutritional quality of meat and milk.
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