King Palm (Archontophoenix alexandrae) Byproduct Valorization by Lentinula edodes Colonization for Ruminant's Diet: In Vitro Effects on Ruminal Fermentation and Greenhouse Gases Emissions

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Timm, Thayna Goncalves ; da Rocha, Bruno Moreira ; Savio, Renan Lima ; Camargo, Gabriel Santos ; Magnani, Elaine ; Loregian, Kalista Eloisa ; Cagliari, Amanda Regina ; Casagrande, Ana Claudia ; Helm, Cristiane Vieira ; Tavares, Lorena Benathar Ballod ; Marcondes, Marcos Inacio ; Branco, Renata Helena ; de Paula, Eduardo Marostegan ; Benedeti, Pedro Del Bianco

• Document type: Journal article
• Source: WASTE AND BIOMASS VALORIZATION; v. N/A, p. 14-pg., 2024-11-16.

Abstract

PurposeThis study aimed to assess the effects of a new high-value bioproduct from the King palm byproduct valorization on in vitro ruminal fermentation variables.MethodsThe bioproduct was developed through solid-state fermentation of King-palm's shells supplemented with soybean meal and cassava bagasse, carried out by Lentinula edodes. Three in vitro experiments were performed to evaluate the in vitro gas production profiles (GP), enteric methane (CH4) and carbon dioxide (CO2) production, volatile fatty acids (VFA), and ammonia-nitrogen (NH3-N), comparing the bioproduct with corn silage (Exp. 1), brachiaria hay, and sugarcane (in nature) (Exp. 2), and on the replacement of corn silage in beef cattle finishing diets (0%, 33%, 66%, and 100%) (Exp. 3).ResultsFor Exp. 1 and 2, the first 24 h of total GP bioproduct had the lowest value compared to corn silage, brachiaria hay, and sugarcane, as well as for 48 h and 72 h. The in vitro organic matter digestibility (IVOMD), production of CH4 and CO2, and total VFA concentrations were lower for the bioproduct than corn silage, brachiaria hay, and sugarcane. Bioproduct concentrations (Exp. 3) did not affect total GP at 24 h and 48 h incubations, IVOMD, CH4, and CO2 production, pH, total VFA concentration, and NH3-N concentration. The NDF degradation rate decreased with the bioproduct inclusion concentrations.ConclusionThis study highlighted a promising nutrient source and bioactive compound reservoir for cattle diets, demonstrating efficacy in vitro ruminal fermentation. This agro-industry and livestock sector integration could promote a circular bioeconomy, enhancing sustainability. (AU)

• FAPESP's process: 17/50339-5 - Institutional research development plan of the Animal Science Institute (PDIp)
• Grantee: Lenira El Faro Zadra
• Support Opportunities: Research Grants - State Research Institutes Modernization Program
• FAPESP's process: 18/19743-7 - Effects of different levels of ruminal undegraded protein in beef cattle diets / establishment of in vitro systems (dual-flow continuous culture and gas production) for ruminants' nutrition studies
• Grantee: Eduardo Marostegan de Paula
• Support Opportunities: Research Grants - Young Investigators Grants