Produção Animal

URI permanente para esta coleçãohttps://repositorioacademico.universidadebrasil.edu.br/handle/123456789/34

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    Aditivo à base de resíduo de mandioca e inoculante bacteriano para silagens de capim elefante BRS Capiaçu
    (Universidade Brasil, 2021) Santos, Anderson Braun dos; Brennecke, Käthery
    During dry periods, there is a drop in the availability and quality of pastures, the main source of food for ruminants in the country, which impairs animal productivity. The use of alternative additives such as agro-industrial residues can be used as additives in silage production. Therefore, the present study aimed to evaluate the fermentative profile, gas and effluent losses, chemical composition and in situ ruminal degradability of BRS Capiaçu elephant grass silage with an additive formulated based on cassava residue, bacterial inoculant Lactobacillus buchneri and urea. The experiment was conducted at the Federal Institute of Rondônia (IFRO), Colorado do Oeste Campus. For the preparation of the formulated additive, cassava residue was used, with moisture reduced to approximately 89% of dry matter. The dry material was mixed with urea and Lactobacillus buchneri. The proportion of 1% of livestock urea on the total weight of cassava meal was used. The inoculant used was Lalsil AS® with Lactobacillus buchneri composition at a concentration of 1.0 x 1011 CFU/g. The dose applied in treatments with the inoculant was equivalent to 1g of commercial additive per ton of natural forage matter. The inoculant and urea were mixed with 100g of cassava meal and this first portion was mixed with the total amount of additive used. The treatments consisted of the levels of inclusion of the additive in the silage, as follows: 0%, 5%, 10%, 15%, 20% and 25%. Thus, it was observed that the silages that did not receive the additive had less than ideal dry matter content. Inclusion levels of 5% and 10% provided adequate DM levels for BRS Capiaçu silage. For the variable gas loss (PG), pH and ether extract (EE), there were no significant differences between the inclusion levels. The NDF values decreased as the inclusion of the formulated additive was increased, results that ranged from 71% to 33.21%. The NDFi values obtained after 288 hours of ruminal incubation showed significant differences between treatments. A significant difference was observed for the mineral matter (MM) variable, the MM content of the formulated additive is lower than that of Capiaçu. The inclusion of the formulated additive in the BRS Capiaçu elephant grass silage linearly reduced the crude protein (CP) content in the additive silages. Thus, it can be concluded that the use of the additive in BRS Capiaçu elephant grass silage changed the parameters evaluated when compared to silage without the use of these additives, benefiting mainly in the reduction of effluents produced.