Fruit agribusiness waste as an additive in elephant grass silage

Abstract

The purpose of this study was to evaluate the potential use of fruticulture waste as an additive in elephant grass (Pennisetum purpureum) cultivar Napier silage at different densities, defining the effect of fermentative quality, microbiological characteristics and bromatological composition. The experimental design was completely randomized with four replications in a 4 x 3 factorial scheme, comprising a control, banana waste (BW), mango waste (MW), and passion fruit waste (PFW) at three densities (400, 500 and 600 kg green matter [GM] m -3 ). The effect of ensiling density was greatest in the exclusively elephant grass silage, where a compaction of 600 kg GM m -3 contributed to improvements in fermentation and microbiological processes. The addition of banana waste to the elephant grass silage promoted improvements only in bromatological composition, raising the dry matter (DM), crude protein (CP), and non-fiber carbohydrate (NFC) content and reducing fiber components (neutral detergent fiber [NDFap] and acid detergent fiber [ADFap] corrected for ash and protein), but the addition of banana waste did not favor the fermentative or microbiological processes. The addition of passion fruit and mango by-products promoted increased DM and favored the fermentative, microbiological, and bromatological silage processes, regardless of density. Key words: Additives. Compaction. Fermentation. Microbial. Pennisetum purpureum. ResumoObjetivamos avaliar o potencial de utilização de resíduos da agroindústria de fruticultura como aditivos na ensilagem de capim-elefante (Pennisetum purpureum) cultivar Napier, sob diferentes massas específicas, determinando seu efeito na qualidade fermentativa, características microbiológicas e composição bromatológica. O delineamento experimental utilizado foi inteiramente casualisado com quatro repetições, em esquema fatorial 4 x 3, sendo composto por testemunha, resíduo de banana (RB), resíduo de manga (RMg), resíduo de maracujá (RMj) e três massas específicas (400, 500 e 600 kg matéria verde [MV] m -3 ). O efeito da massa específica no silo é mais efetivo na silagem exclusiva de capim- elefante, onde a compactação de 600 kg MV m -3 contribui para melhorias no processo fermentativo e microbiológico. A adição do resíduo de banana na ensilagem do capim-elefante promoveu melhorias apenas na composição bromotológica, elevando os teores de matéria seca (MS), proteína bruta (PB), carboidratos não fibrosos (CNF) e redução nos componentes fibrosos (fibra em detergente neutro [FDNcp] e fibra em detergente ácido [FDAcp] corrigidos para cinza e proteína), porém não favorece o processo fermentativo e microbiológico. A adição de subprodutos de maracujá e manga promove o aumento da MS e favorece o processo fermentativo, microbiológico e bromatológico da silagem, independente da massa específica. Palavra-chave: Aditivos. Compactação. Fermentação. Microbiológico. Pennisetum purpureum.

Passion fruit by-product as a substitute for Tifton 85 hay in diets for dairy heifers

“…However, this fact did not influence nutrient intake. Furthermore, Van Soest (1994) suggested that NDF intakes above 0.8 to 1.2% LW, as reported in this study, would limit DMI, Figueiredo, M. R. P. et al 1) is close to the 12.20% found by Azevedo et al (2011) but considerably higher than the 7.97% reported by Rogério (2005) and 4.97% reported by Sena et al (2015) and lower than the 20.60% found by Azevedo et al (2017). According to Ferrari et al (2004), the oil extracted from passion fruit seeds has an unsaturated fatty acid content greater than 87%.…”

Fermentation losses and chemical composition in mixed silages of elephant grass and cassava peels with mango residue

“…Zanine et al (2010) found a similar result, with a reduction in the CP concentration with the addition of cassava scrapings (3.40% CP) in the elephant grass silage. According to Aragão et al (2012) in the mango peel, there is about 3.90% of CP and 3.40% in the pulp, while in the fresh elephant grass there is around 9% at the 90 days of growth (VALADARES FILHO et al, 2018). Therefore, in the present study, the addition of 10.7% of mango residue in elephant grass and cassava peels silage allowed the minimum content of CP (7%), recommended NM: natural matter; 2 SEM: Standard error of mean; 3 L: Linear effect; Q: Quadratic effect; 4 DM: Dry matter; 5 OM: Organic matter; 6 CP: Crude protein; 7 EE: Ether extract; 8 NFC: Non-fibrous carbohydrates; 9 NDF: Neutral detergent fiber; 10 ADF: Acid detergent fiber; 11 MM: Mineral matter.…”

Fermentative losses and lactic acid content of elephant grass silages added with macaúba cake

“…The variation in the availability of growth factors for forages throughout the year determines the seasonality of forage production, which may compromise animal performance (Mochel Filho et al 2016). Thus, using forage conservation techniques is indispensable to ensure feed supply in sufficient quantity and quality in critical times of the year, highlighting the ensilage technique (Azevedo et al 2017;Guimarães et al 2018).…”