Navegando por Autor "AZEVEDO, Jorge Cardoso de"

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Acesso aberto (Open Access)
Elephant grass silage with the addition of crambe bran conjugated to different specific mass
(Universidade Federal do Pará, 2016-12) CARDOSO, Arilson Moraes; ARAÚJO, Saulo Alberto do Carmo; ROCHA, Norberto Silva; DOMINGUES, Felipe Nogueira; AZEVEDO, Jorge Cardoso de; PANTOJA, Lilian de Araujo
This study aimed to evaluate the effects of inclusion of crambe bran concentrations (Crambe abyssinica Hochst.) with different specific masses in elephant grass silage (Penninsetum purpureum Schum.). For that, the bromatological and microbiological compositions of the experimental silages were determined. We used 48 mini silos distributed in a completely randomized design, arranged in a factorial 4 × 3, four levels of inclusion of crambe bran (0; 10; 20 and 30%) and three specific masses (400; 500 and 600 kg MN m-3), with four replications. After 240 days of fermentation the silos were opened. It was observed linear effect on DM, CP, NDFap, ADFap, HEM, LIG, NFC, TC and population of bacteria that produce lactic acid with the addition of crambe meal. There was interaction between the crambe bran factors and specific masses on the values of pH and N-NH3. For MM variables and yeast count there was a negative linear effect due to the evaluated specific mass. The inclusion of crambe bran helps to increase the fermentative profile and the bromatological composition of elephant grass silages studied, and the best results were obtained with the addition of 30% of this coproduct, based on the natural matter.
Acesso aberto (Open Access)
Resíduos da agroindústria de frutas como aditivos para ensilagem de capim elefante
(Universidade Federal do Pará, 2015-03-27) AZEVEDO, Jorge Cardoso de; ROCHA, Norberto Silva; http://lattes.cnpq.br/7845601346733559; DOMINGUES, Felipe Nogueira; http://lattes.cnpq.br/1461187309835749
The mean purpose of that research was to measure the potential of agribusiness fruit production waste use (banana, mango, passion), such as absorbing additives oh humidity at ensilage of elephant grass (Pennisetum purpureum) cultivate Napier, through different specific masses, defining its effect on fermentation quality, microbiological characteristics, and chemical composition. Treatments were distributed in a completely randomized design with four replicates, in factorial 4 x 3, being composed of witness, banana waste (BW), mango waste (MW), passion waste (PW) and three specific masses (400, 500 and 600 kg MV/m3). After 240 days of fermentation on experimental silos samples were opened and excluded to determine the content of dry matter (DM), crude protein (CP), ether extract (EE), neutral detergent fiber corrected to ash and protein (NDFap), acid detergent fiber corrected to ash and protein (ADFap), hemicellulose (HCEL), lignin (Lig), total carbohydrates (TC), nonfiber carbohydrates (NFC), neutral detergent insoluble nitrogen (NDIN), acidic detergent insoluble nitrogen (ADIN, % total N), potential of hydrogen (pH), ammonium nitrogen (N-NH3), lactic acidic bacteria (LAB), filamentous fungi (FUN), and yeast. The software R was used to analyze the treatments, considering the significance of 5% probability (P<0.05). To compare the average of each treatment, when it influenced the variable response, the Tukey test of 5% of significance was used. The effect of specific mass on silo is more effective in exclusive silage of elephant grass, the compaction of 600 kg MV/m3 contribute for improvements on the fermentative and microbiological process. The specific mass does not influence a lot on the chemical composition. The addition of banana waste on elephant grass ensilage contribute improvements only on the chemical composition, rising the values of DM, PB, NFC and reduction of fibrous components (NDFcp and ADFcp), but it does not improve the fermentative and microbiological process. The addition of passion and mango by-products foment the improvement of DM and promote the fermentative, microbiological, and chemical process of silage, no matter the specific mass.