SciELO - Scientific Electronic Library Online

vol.41 issue6Effects of microbial inoculants and amino acid production by-product on fermentation and chemical composition of sugarcane silagesEstimates of genetic parameters for visual scores and their correlation with production and reproductive traits in Brahman cattle author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Revista Brasileira de Zootecnia

On-line version ISSN 1806-9290


SANTOS, Otanael Oliveira dos et al. Fermentation characteristics and nutritional value of elephant grass ensiled with old man saltbush. R. Bras. Zootec. [online]. 2012, vol.41, n.6, pp.1401-1406. ISSN 1806-9290.

The effects of the addition of saltbush on the fermentation characteristics and nutritional value of silages of elephant grass (Pennistum purpureum Schum.) were studied through a completely randomized design with six old man saltbush (Atriplex nummularia Lind) levels (0, 20, 40, 60, 80 and 100 %) in substitution of the grass natural matter, with six replicates. Elephant grass presented 18.9% dry matter (DM) and silages were produced in experimental PVC silos, which were open at 70 days after ensilage. The increasing old man saltbush levels had increasing linear effect on the DM content of silages. There was quadratic effect for the contents of lactic and acetic acids and in vitro DM digestibility. Contents of butyric acid were negligible. Values pH of and N-NH3 contents had increasing linear effect. Linear effect of the increasing levels of old man saltbush was verified on the CP contents. Neutral detergent fiber, total carbohydrates and ether extract were not affected, whilst acid detergent fiber content showed decreasing linear effect. The addition of old man saltbush in the ensilage of elephant grass favored the fermentation process, promoting good lactic acid contents and reducing acetic acid, pH, dry matter loss and ammoniacal nitrogen, in addition to improving the nutritional quality of the elephant grass silages.

Keywords : acid detergent fiber; ammonia nitrogen; crude protein; neutral detergent fiber; pH.

        · text in English     · English ( pdf epdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License