PHYSICAL FORMS (FRESH/WET, DRIED, PELLETED, ENSILED, FERMENTED) AND LOGISTICS IMPLICATIONS

The feasibility of cassava residues in dairy rations is strongly determined by physical form and logistics. Fresh/wet pulp (often high moisture) is typically highly perishable in warm climates and therefore requires rapid stabilization (e.g., ensiling) or near-immediate feeding; otherwise, aerobic spoilage and nutrient losses can be substantial. Processing studies on cassava pulp silage show that combining LAB with fermentable substrate and nitrogen sources (e.g., molasses and urea) can improve fermentation profiles and aerobic stability, directly addressing a key adoption bottleneck for wet residues [24, 32–34]. Complementary recent work evaluating treated cassava pulp demonstrates that such interventions can also modify in vitro gas kinetics and rumen fermentation characteristics, supporting the view that stabilization is not merely preservation but can change feeding value [35]. Dried or pelleted residues reduce spoilage and transport costs per unit of DM [36–39] but introduce processing costs and may concentrate ash/soil contamination if present [40–42]; they also shift risk toward storage quality control (e.g., re-wetting, mold). Ensiled/fermented forms can be advantageous for cooperatives and smallholders by enabling bulk seasonal storage [43, 44], but require specification-based management (target DM, packing density, fermentation time, and aerobic stability after opening). More broadly, recent ensiling research involving cassava-derived materials emphasizes that additive choice and microbial ecology can be leveraged to improve fermentation performance, an insight directly transferable to cassava residue stabilization strategies [32].