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- W2904118466 abstract "The objective of this study was to evaluate the effect of harvest time (HT) and regrowth age (RA) of elephant grass cv. Cameroon on fermentation profile, microbiology population, and digestibility of silages. A 2 × 2 factorial scheme with two HT (8 and 14 h) and two RA (8 and 16 weeks) was used, in a completely randomized design with four replicates. The grass was chopped into 2 cm particle size and ensiled in plastic buckets (mini-silos) with 25 cm diameter and 25 cm height. After 60 days of storage, silos were opened and samples of silage were collected for chemical analysis. Data were subjected to analysis of variance and means were compared by F test at 5% probability, using SAS. The acetic, propionic, and butyric acids, and NH3/TN and ethanol contents, and LAB counts were affected (P<0.05) by the interaction HT × RA. The LAB population ranged from 6.58 (8 h × 8 weeks) to 8.25 log cfu/g (8 h × 16 weeks). Ammonia N contents ranged from 7.18 (14 h × 16 weeks) to 13.7% (14 h × 8 weeks. Silage of elephant grass harvested at 14 h and 8 weeks showed the lowest pH (3.53) and the highest lactic acid (39.7 g/kg) and ethanol (10.8 g/kg) contents. The IVDMD was higher in silages of plants harvested with 8 than 16 weeks of regrowth (59.9 x 46.8%). Elephant grass harvested at 8 h and 16 weeks provided a higher LAB population and lower propionic acid and ethanol contents in silages. When harvested at 14 h and 8 weeks of regrowth, it provided silage with lower pH values and higher lactic acid contents. Supported by Fapemig, CNPq, Capes, and INCT-CA." @default.
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- W2904118466 date "2018-12-01" @default.
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- W2904118466 title "PSVIII-39 Silage of elephant grass harvested at different times and regrowth ages." @default.
- W2904118466 doi "https://doi.org/10.1093/jas/sky404.477" @default.
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