Padrão fermentativo, composição químico-bromatológica e digestibilidade de silagem de Panicum maximum Jacq. cv. Tanzânia inoculada com aditivo microbiano-enzimático

• Ano de defesa: 2014
• Autor(a) principal: Costa Júnior, Wagner Soares da
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Mato Grosso; Brasil; Faculdade de Agronomia, Medicina Veterinária e Zootecnia (FAMEVZ); UFMT CUC - Cuiabá; Programa de Pós-Graduação em Ciência Animal
• Palavras-chave em Português: Conservação de forragem; Emurchecimento; Inoculante; Volumoso; CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA; Forage conservation; Wilting; Inoculant; Bulky
• Link de acesso: http://ri.ufmt.br/handle/1/457

The experiment was conducted to evaluate losses and effluent gases, fermentation and Microbiological characteristics, chemical composition, and to evaluate the kinetic parameters of in situ ruminal digestibility of grass silages Panicum Maximum Jacq. cv. Tanzania inoculated with microbial-enzyme additive. The inoculant made from wilting and tested, obtaining four treatments: no wilted silage inoculant without silage inoculant with no wilted silage inoculant and wilted without wilted silage inoculant and three time with opening (40 and 80 days of ensiling) and zero time being fodder, distributed in a 2x2x3 factorial design randomized with three replications. One of regrowth forage, held at the height of 30 cm from the ground level was done. Tanzania The grass was ensiled with 45 days of regrowth after cutting 30 cm of soil and forage was ensiled in experimental silos of 1.3 liters, equipped with a valve and siphon with 600 g of sand in the bottom for added retention of effluent. The Silos were opened after 40 and 80 days. Data were analyzed using the SAS procedure GLIMMIX, version 9.3. The main effects and interactions were defined by the F-test of ANOVA, and the command used to separate SLICEDIFF significant interactions. The LSMEANS option was used to generate the individual averages for each effect. Because it is a quantitative factor (opening time), orthogonal contrasts were used to partition the effects of specific opening time with humidity and type of inoculant. Wilting increased the dry matter content of 18.10 to 44.18, keeping in an ideal range for conservation, improved qualitative characteristics. Further reduced effluent losses and gas and ammonia-N silages. The use of microbial-enzyme inoculant shifted exchange losses gases and ammonia nitrogen, most clearly in silages with low content of dry matter. The inoculant increased lactobacilli count in fodder, reduces the final count of yeast and the concentration of acetic acid and alcohol. Wilting reduces the concentration of acetic, butyric and lactic acid. Through wilting and inoculation we got the best pH value (4.54). Wilting the forage can be recommended as techniques for ensiling Tanzania, for improving silage quality by decreasing the levels of butyric and acetic acid. The use of microbial-enzymatic additive combined with wilted grass silage of Tanzania, had the lowest pH value decreased.