TCC Engenharia Agronômica
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Navegando TCC Engenharia Agronômica por Orientador "Silva, Randerson Cavalcante"
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Item Desempenho agronômico e composição bromatológica de cultivares de palma consorciada com capim buffel(INSTITUTO FEDERAL DE ALAGOAS - Ifal, 2023-02-08) Lima, Danielle Ferreira de; Silva, Jose Madson da; https://orcid.org/0000-0003-0237-4762; http://lattes.cnpq.br/5749870599305506; Silva, Randerson Cavalcante; http://lattes.cnpq.br/7477067848979919; Souza, Almir Rogerio Evangelista de; https://orcid.org/0000-0002-9266-5063; http://lattes.cnpq.br/5565092143060833; Araújo Neto, Renato Américo de; https://orcid.org/0000-0003-1337-7969; http://lattes.cnpq.br/7357007301267211Several grasses have been evaluated, over the years, for formation of pastures, seeking, above all, high productivity and persistence. Among these, grasses of genus Brachiaria and Panicum are evaluated in other regions such as southeast for example, and in semi-arid region,the type of grass that most arouses curiosity for research is Buffel. For semi-arid regions, another highlight is cactus pear, which feeds and maintains livestock during long periods of drought. Thus, the objective of the present work was to evaluate structural and productive components in intercropping of cactus pear and grass cultivars under irrigated management. The experimental design used was in randomized blocks (DBC), three cultivars of palm in association with one species of grass, in six treatments, palm Nopalea cochenillifera Salm Dyck (miúda-MIU) intercropped with the species of grass and single, palm Opuntia stricta Haw (Orelha de Elefante Mexicana - OEM) intercropped with the species of grass and single, palm Opuntia cochenillifera (Gigante) intercropped with the species of grass and single, six treatments and four replications, totaling 24 experimental units. The rackets were planted densely (1x0.25m) and with buffel between lines. Based on results referring to the study of grass growth and cladode growth in cactus pears, the respective variables were estimated. Biomass production was calculated and, for the evaluation of the morphogenetic characteristics of the cactus pear genotypes, two plants were selected per plot of central line and, as cladodes appeared, they were quantified and marked, weekly, with threads of different colors , according to the order of appearance in cladode hierarchy. Thus, the cladode appearance rate (TApC, cladode/day) and phyllochron (day/cladode) of cladodes were calculated. Weekly, using a ruler and caliper, length, width and thickness of the cladodes were measured, which allowed estimating rates of cladode elongation (TAlC in cm/day), of cladode enlargement (TAC in cm/day), cladode thickening (TEC in cm/day), area expansion (TEA in cm2 /day) and volume expansion (TEV cm3 /day). The biomass production was calculated and bromatological composition was performed. It was verified with this work that consortium of palm OEM, GIG and Miúda with buffel grass can be an alternative for semi-arid region of Alagoas by increasing efficiency in land use.Item Silagem a base de capim-elefante, feijão guandu e milho(INSTITUTO FEDERAL DE ALAGOAS - Ifal, 2023-12-19) Silva, Mayara da; Costa, Kleyton Danilo da Silva Costa; https://orcid.org/0000-0003-4631-3240; http://lattes.cnpq.br/3562128215536520; Silva, Randerson Cavalcante; http://lattes.cnpq.br/7477067848979919; Silva, Jose Madson da; https://orcid.org/0000-0003-0237-4762; http://lattes.cnpq.br/5749870599305506; Silva, Michelangelo de Oliveira; http://lattes.cnpq.br/5831953262176334The use of forage conservation techniques plays a fundamental role in animal feeding and nutrition, ensuring the supply of quality food during periods of drought. Ensiling is one of the most used techniques for forage conservation, which consists of the anaerobic fermentation of forage, resulting in the production of lactic acid, inhibiting unwanted microorganisms and preserving the quality of the silage. The appropriate selection of the plant to be ensiled plays an extremely important role, as its composition directly influences the quality of the silage. Silage production using elephant grass, gaundu beans and ground corn emerge as efficient nutritional alternatives due to their nutritional composition, favorable cost-benefit, resistance to adverse weather conditions and potential increase in animal productivity. Therefore, the present work aimed to analyze the chemical composition and fermentative parameters of silage produced with different levels of protein using elephant grass cv. BRS Capiaçu, pigeon pea cv. IPA 43 and ground corn, seeking to highlight which treatment has the best bromatological and fermentative quality. The experiment was set up in a Completely Randomized Design (DIC), with four treatments and five replications, totaling 20 experimental plots. Each treatment presented a different protein level, these being 11, 12, 13 and 14% of crude protein (CP). The fermentation profile was evaluated by measuring °Brix, pH, temperature, dry matter losses through gases (PG) and green matter losses through effluents (PE), in bromatological analysis the CP and Dry Matter contents were determined ( MS). The treatment with 14% CP demonstrated better performance in terms of DM, with 31.8% DM, and PG with 5.38% losses. CP analysis did not indicate losses during the fermentation process. Although the temperature showed a significant difference, all treatments remained within the acceptable temperature range according to the literature, with an average of 25.76°C. The parameters pH, °Brix and PE did not show significant differences between treatments, with averages of 4.41, 6.99 and 1.78 Kg/Mg respectively, remaining at levels suitable for making quality silage. The silage formulation presented adequate bromatological and fermentative parameters at all protein levels. The treatment with 14% protein is the most recommended as it presents a greater amount of dry matter and lower gas losses.