Chemical and bromatological characteristics of elephant grass silages containing a mango by-product

Abstract

-This study was carried out to evaluate the nutritive value of elephant grass (Pennisetum purpureum, Schum.) silages with the addition of 0, 4, 8, 12 and 16% dehydrated mango (Mangifera indica, L.) by-product (DMB), on the fresh matter basis. A randomized complete design with four replications was used. As experimental silos, 210L plastic drums were used. Dry matter (DM), organic matter (OM), crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF), hemicellulose (HCEL), ether extract (EE), total carbohydrates (TC), non-fibrous carbohydrates (NFC), neutral detergent insoluble nitrogen (NDIN, % total N), acid detergent insoluble nitrogen (ADIN, % total N), pH values, ammoniacal nitrogen (% total N), lactic acid, acetic acid, butyric acid and propionic acid levels were determined. The DM, OM, CP, EE, NFC, NDIN, lactic acid and propionic acid levels increased with the DMB addition while the NDF, ADF, hemicellulose, N-NH 3 /ammoniacal nitrogen levels and the pH values decreased with the DMB addition. The addition of DMB had a quadratic effect on the acetic and butyric acid levels but there was no effect with the addition of DMB on TC and ADIN. The DMB can be used at the ensiling of the elephant grass, because the addition of 8.6% improves the silages fermentative process. However, these silages have low crude protein levels and high contents of ether extract and nitrogen compounds mixed with the fiber (NDIN and ADIN) in the silages, that may damage their use by animals.

Evaluation of elephant grass silage with the addition of cassava scrapings

“…The lowest addition of cassava scraping supplied sufficient soluble carbohydrates and dry matter concentration to ensure lactic fermentation (McDonald et al, 1991). Similar result was obtained by Rêgo et al (2010) who observed linear increase for latic acid concentration in elephant grass silages with dehydrated mango by-product addition.…”

Efecto de los tiempos de recolección post cosecha de Daucus carota sobre la composición química del tubérculo, hojas y tallos como sustrato para ensilaje

“…La producción de recursos agrícolas y la necesidad de encontrar fuentes alternativas para la alimentación animal son condiciones que posibilitan la utilización de los ensilajes en la alimentación animal (Guzmán 2010). Mediante un procedimiento sencillo y adecuado, los ensilajes permiten preservar los residuos de cítricos (Llano et al, 2008), piña (Herrera et al, 2009) y mango (Rego et al, 2010), entre otros desechos agroindustriales, útiles para el consumo de los animales. La zanahoria (Daucus carota) es un tubérculo de zonas templadas principalmente en clima frio (Méndez y Richmond, 2010) el cultivo, se ha extendido en casi todo el mundo (SIPSA, 2015), y cuenta con una limitada información sobre su uso en ensilado para alimentación animal.…”

<strong>Chemical Characterization of The Agroindustrial By-Products Destined for Pig Feeding</strong>

“…Its nutrients can be raw material to generate products of interest, as food for pigs (Domínguez et al, 2012). In this regard, the use of rice husk (Martin, 2009), coffee pulp (Noriega et al, 2008), apple waste (Díaz et al, 2010), mangos (Rego et al, 2010) taro tubers among others, has been reported with satisfactory results in the productive performance of the animals.…”