The nutritive value and fermentation quality of palisadegrass (Brachiaria brizantha cv. Xaraes) and stylo (Stylosanthes capitata × S. macrocephala cv. Campo Grande) mixed silages were evaluated. The experiment was analyzed in a factorial scheme (5 × 2) in a completely randomized design using increasing levels of stylo (0, 25, 50, 75 and 100% on a fresh matter basis) on palisadegrass silages, with and without microbial inoculants (MI). With the increased ratio of stylo in mixed silages, dry matter (DM), crude protein (CP), acid detergent fiber (ADF), and lignin content increased in silages. The presence of MI promoted lower DM content, and higher neutral detergent fiber corrected for ash and protein, ADF and lignin content. The acid detergent insoluble nitrogen content and the lactic acid bacteria populations were not affected by treatments. The in vitroDM digestibility was affected by the interaction of levels of the stylo and MI. The pH, NH -N/total nitrogen and butyric acid concentrations decreased with increasing levels of stylo. Better nutritive value and quality of fermentation was found in the silage containing higher proportions of this stylo mixed with palisadegrass. The microbial inoculant evaluated did not alter the nutritive value or quality of the fermentation of the silages in this experiment.
SummaryBackground: the high volume of mangos harvested during the season, associated with inappropriate management of the fruit after harvesting results in increased waste of this valuable resource. Mango fruit, rich in carbohydrates, has potential use in animal feeding. Objective: to evaluate the effect of replacing corn with whole mango meal (0, 330, 660, and 1000 g/Kg on dry matter basis) in the diets of dairy goats on rumen fermentation kinetics, intake, milk yield and composition, and economic results. Methods: eight lactating Saanen crossbred goats (48.7 ± 1.99 Kg body weight) were used in the experiment, which started 48 days postpartum and lasted until completing 124 days of lactation. The experimental design consisted of a double Latin square (4×4) with four treatments, four periods and four animals per square. Results: a reduction (p<0.05) was observed in gas production from total carbohydrates and fiber carbohydrates. Replacement of corn with whole mango meal showed no effect on DM intake (1,890 g/d), crude protein (278 g/d) and neutral
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