Artigos Científicos - FAMEVE/CCAST

URI Permanente para esta coleçãohttps://repositorio.ufpa.br/handle/2011/2571

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    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.
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    Óxido de cálcio e Lactobacillus buchneri NCIMB 40788 na ensilagem de cana-de-açúcar in natura ou queimada
    (Universidade Federal do Pará, 2011-11) SIQUEIRA, Gustavo Rezende; SCHOCKEN-ITURRINO, Ruben Pablo; ROTH, Anna Paula de Toledo Piza; DOMINGUES, Felipe Nogueira; FERRAUDO, Antonio Sergio; REIS, Ricardo Andrade
    The objective of this trial was to evaluate the effects of the inclusion of calcium oxide (CaO) and/or L. buchneri (LB) on the losses and chemical composition changes of in natura and burned sugar cane silages. Silage treatments were: in natura sugar cane without additive (IS), with Lactobacillus buchneri (ISLB), with calcium oxide (ISCaO) equivalent to 1% of natural matter, and the combination of LB and CaO (ISLBCaO). Experimental design was completely randomized in a factorial scheme (2 × 4) considering status (burned or not) and additives (LB, CaO and LB+CaO) with three replications per treatment. Dry matter variation was lower for in natura and burned silages treated with CaO; regardless of the LB presence, the mean difference was 5.85 percentage units. In sugar cane silages without additives, higher dry matter recoveries were observed when the plant was ensiled with in natura silage (63.5%) compared with burned silage (46.8%). However, when additives (CaO and LB) were used, no significant differences occurred between the in natura and burned silage treatments. The presence of calcium oxide was the factor that provided the greatest discrimination among the data. Calcium oxide is effective in reducing losses and chemical changes on the in natura and burned silages. The L. buchneri acts effectively on burned sugar cane silages, and the latter are more susceptible to losses than those of in natura sugar cane.
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    Vacas terminadas em campo nativo suplementadas com farelo de trigo ou farelo de arroz integral contendo ou não monensina sódica
    (2008-12) OSMARI, Milene Puntel; ARBOITTE, Miguelangelo Ziegler; BRONDANI, Ivan Luiz; KUSS, Fernando; ALVES FILHO, Dari Celstino; RESTLE, João
    The performance, physical composition, income of commercial cuts the quality of the meat of twenty eight cows Charolais, Nellore and its cross, were evaluated with initial average live weight of 409kg, finished in native grass with high participation of Eragrostis plana Nees., supplemented per 99 days with wheat bran or rice bran 0.5% of the alive weight in the DM with or without the inclusion of sódica monensina. The use of wheat bran provided a better conformation of the carcass (P<0.05), classifying it as "regulate +" (9.90 points). The others characteristic studied was not influenced (P>0.05) by the type of supplement. The inclusion of sodic monensin did not provide significant differences (P>0.05) in the variable studied.
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