Title of article
The Effect of Graded Levels of Crude Glycerin in BRS Capiaçu Grass Silage: Fermentation Profile and Bromatological Composition
Author/Authors
C.A. Silva, M. Department of Animal Science - Faculty of Agricultural Science - State University of Montes Claros (Unimontes) - Avenida Reinaldo Vianna - Morada do Sol - Janaúba, Minas Gerais, Brazil , M. Costa, N. Department of Animal Science - Faculty of Agricultural Science - State University of Montes Claros (Unimontes) - Avenida Reinaldo Vianna - Morada do Sol - Janaúba, Minas Gerais, Brazil , S. Rigueira, J.P Department of Animal Science - Faculty of Agricultural Science - State University of Montes Claros (Unimontes) - Avenida Reinaldo Vianna - Morada do Sol - Janaúba, Minas Gerais, Brazil , S. Jesus, D.L. Department of Animal Science - Faculty of Agricultural Science - State University of Montes Claros (Unimontes) - Avenida Reinaldo Vianna - Morada do Sol - Janaúba, Minas Gerais, Brazil , S. Silva, N.B. Department of Animal Science - Faculty of Agricultural Science - State University of Montes Claros (Unimontes) - Avenida Reinaldo Vianna - Morada do Sol - Janaúba, Minas Gerais, Brazil , Silva Filho, W.S. Department of Animal Science - Faculty of Agricultural Science - State University of Montes Claros (Unimontes) - Avenida Reinaldo Vianna - Morada do Sol - Janaúba, Minas Gerais, Brazil , P. Monção, F. Department of Animal Science - Faculty of Agricultural Science - State University of Montes Claros (Unimontes) - Avenida Reinaldo Vianna - Morada do Sol - Janaúba, Minas Gerais, Brazil , D. Alves, D. Department of Animal Science - Faculty of Agricultural Science - State University of Montes Claros (Unimontes) - Avenida Reinaldo Vianna - Morada do Sol - Janaúba, Minas Gerais, Brazil , Rocha Júnior, V.R. Department of Animal Science - Faculty of Agricultural Science - State University of Montes Claros (Unimontes) - Avenida Reinaldo Vianna - Morada do Sol - Janaúba, Minas Gerais, Brazil , S. Araújo, J.J. Department of Animal Science - Faculty of Agricultural Science - State University of Montes Claros (Unimontes) - Avenida Reinaldo Vianna - Morada do Sol - Janaúba, Minas Gerais, Brazil , T. Silva, J. Department of Animal Science - Faculty of Agricultural Science - State University of Montes Claros (Unimontes) - Avenida Reinaldo Vianna - Morada do Sol - Janaúba, Minas Gerais, Brazil , A. Chamone, J.M. Department of Animal Science - Faculty of Agricultural Science - State University of Montes Claros (Unimontes) - Avenida Reinaldo Vianna - Morada do Sol - Janaúba, Minas Gerais, Brazil
Pages
6
From page
597
To page
602
Abstract
The objective of this study was to evaluate the effect of crude glycerin inclusion levels on BRS Capiaçu grass (Pennisetum purpureum) silage on the parameters of fermentation and chemical-bromatological composition. Experimental treatments consisted of BRS Capiaçu grass silage with five levels of inclusion of crude glycerin (0, 1, 5, 10 and 15% inclusion in the natural matter) during ensiling. In this study, a completely randomized design was used along with five treatments and six replicates. The inclusion of crude glycerin in BRS capiaçu grass silage linearly reduced pH (P<0.01) and effluent losses (P<0.01). For each percentage unit of glycerin addition, there was a reduction of 0.013 pH units and 0.0485% of the effluent losses. There was no effect of crude glycerin on the ammoniacal nitrogen content (P=0.82, an average of 6.65% of the total nitrogen). The variation in the dry matter content between the highest glycerin inclusion dose (15% of natural matter) and the control group (without glycerin) was 30.5%. The crude protein content (P=0.01), ash (P<0.01), neutral detergent fiber (NDF; P<0.01), neutral detergent fiber corrected for ash and crude protein (NDFap; P<0.01) and acid detergent fiber (ADF; P<0.01) linearly reduced with the inclusion of crude glycerin compare to the control group. In the same order, there was a reduction of 0.115%, 0.08%, 1.95%, 1.84% and 1.06%, respectively, for each percentage unit of glycerin added. The addition of crude glycerin in elephant grass silage vs. BRS Capiaçu up to 15% of the natural material had improved the fermentation profile and the chemical-bromatological composition.
Keywords
dry matter , effluent loss , glycerol , Pennisetum purpureum , total digestible nu-trients
Journal title
Iranian Journal of Applied Animal Science
Serial Year
2019
Record number
2511678
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