Fermentation pattern of silages from five sorghum genotypes

Five sorghum genotypes, two comercial hibrids (Volumax and BR 700) and three experimental hibrids developed by Embrapa Milho e Sorgo (0249341, 0249317 and 0249339), were used in order to determine in both the genotypes and their silages after seven different opening times the contents of dry matter,...

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Bibliographic Details
Published in:Arquivo brasileiro de medicina veterinária e zootecnia 2007-12, Vol.59 (6), p.1531-1537
Main Author: Ribeiro, CGM
Format: Article
Language:eng ; por
Subjects:
Sorghum
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Summary:Five sorghum genotypes, two comercial hibrids (Volumax and BR 700) and three experimental hibrids developed by Embrapa Milho e Sorgo (0249341, 0249317 and 0249339), were used in order to determine in both the genotypes and their silages after seven different opening times the contents of dry matter, crude protein, amoniacal nitrogen, pH and alcohol soluble carbohydrates. The dry matter values were not modified during the ensilage. The dry matter values of the silages ranged from 26.03 to 41.13%, with an average of 32.65%. The crude protein values were smaller after the 56 super(th) day of ensilage than the original genotype. The soluble carbohydrates degradation was intensed on the 5 super(th) day of silage fermentation. The amoniacal nitrogen values were small and estabilized on the 28 super(th) day after ensilage, with a small increase on the 56 super(th) day. The pH values ranged from 3.69 to 4.52, stabilizating on the 5 super(th) day after ensilage. According to the results, the hybrids showed high potential for silage use.
ISSN:0102-0935
DOI:10.1590/S0102-09352007000600028