Evaluation of elephant grass (Pennisetum purpureum Schum.) cv. Taiwan A-148, ensiled with different techniques of moisture reduction

Tosi, P.; Mattos, W.R.S.; Tosi, H.; Jobim, C.C.; Lavezzo, W.

Revista Brasileira de Zootecnia 28(5): 947-954

1999


ISSN/ISBN: 1516-3598
Accession: 003438351

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Abstract
The effect of different techniques to reduce moisture on chemical composition, in vitro disappearance of DM (IVDMD) and rumen DM disappearance of elephant grass silage was studied. The treatments (A, control, B, 20, C, 30, D, 40% of maize cobs; E, wilting for 12 h, F, wilting for 24 h; G, crushing + wilting for 24 h) were allotted to a completely randomized design with three replicates. The silage treatments B and E were not efficient in reducing excess moisture of the forage. Wilting for 24 h increased the DM content, without affecting CP and IVDMD. Treatments C and D favoured development of Clostridium, increased the concentration of NH3-N, and decreased lactic acid concentration and IVDMD of the silage. Treatment G increased the DM content and decreased the NH3-N and IVDMD. Addition of maize cobs (treatments B, C and D) decreased rumen DM degradation of silage. Maize cobs decreased the moisture, but had negative effects on silage quality, while wilting and/or crushing gave good results in preservation of the ensiled material.