ABSTRACT The effects of diets containing oilseeds were measured to evaluate the productive and economic parameters in the finishing of young, feedlot Nellore bulls. Twenty-four young Nellore bulls were used, with an initial body weight (BW) of 311.46±0.37 kg and 24 months of age, distributed into individual stalls ( 4 × 20 m) in a completely randomized design, totaling four treatments with six repetitions per treatment. Four diets (control, based on corn and soybean meal, and three diets containing cottonseed, soybean, and sunflower) were evaluated. Feed and orts were measured daily to calculate intake and costs. The dry matter intake of the control group was higher than soybean (10.64 kg/day), cotton (9.88 kg/day), and sunflower (9.30 kg/day) treatments, respectively. The cottonseed treatment showed the highest average neutral detergent fiber intake. There was a dietary effect of diets on average daily gain, total weight gain, and final weight. The soybean treatment showed the highest performance, total gain (232.55 kg), and final weight (544.38 kg). Oilseed intake can modify the fatty acids profile in the meat, decreasing its saturated fatty acid content. Whole soybean seed favors performance, improves feed efficiency, fatty acid profile, and fat distribution in the carcass, and can reduce production costs.

Abstract We hypothesize that lambs fed diets with different lipids sources from oilseeds would similar performance but fatty acids profile of meat superior to those fed with conventional diets. We evaluated the effects of inclusion of oilseeds on the ingestive behaviour, performance, carcass trait and meat quality in feedlot lambs. Three isonitrogenous (18.31% crude protein) diets were evaluated, where one diet was the standard (control), and the others two diets contained soybean and cottonseed. Fifteen Texel lambs, weighting 28.5 ± 1.65 kg were distributed in a completely randomized design by 56 days. Animals fed soybean diet demonstrated greater final body weight when compared to animals fed cottonseed diet and standard diet. The inclusion of cottonseed provided lower average daily gain and total weight gain. Ingestive behaviour of the animals fed diets with grains resulted in greater rumination time. Lambs fed cottonseed diet spent greater time during rumination and presented greater number of chews/day. The hot carcass and cold carcass weight presented lower values in animals fed cottonseeds diet. There was no significant difference in meat for marbling, maturity, fat texture and shear force. Meat from animals fed soybean diet had highest fat content. There was a diet effect for fatty acids composition in the meat. Meat of lambs treated with soybean have greater amounts for fatty acids mostly the unsaturated ones, related to the decrease in cholesterol levels, and lower risk of cardiovascular diseases, thus, lambs fed soybean enrich meat produced with fatty acids that benefit human health.

Abstract The aim of this study was to evaluate the influence of dietary oilseed grains on physico-chemical and sensory parameters of the meat of Nellore steers. The animals were distributed in a completely randomized design in four treatments that consisted of four diets: one without the addition of lipids (control diet) and others containing cottonseed, soybean, sunflower seed. The meat from animals fed with soybean scored highest for succulence and tenderness. The inclusion of oilseed grains modified the composition of fatty acids in the meat, but did not influence the lipid indexes or the cholesterol content in the meat. We suggest the inclusion of soybean in the diet of young cattle because increase the meat acceptability by consumers.

A utilização de sistemas modulares na indústria da construção tem crescido de forma acentuada nos últimos anos no Brasil, sendo que, dentre estes, se destaca o sistema construtivo de alvenaria estrutural. Entretanto, diversos estudos apontam uma alta incidência de manifestações patológicas relacionadas a este sistema. A interface entre alvenaria e esquadria é um dos locais de maior incidência de problemas, além de representar um gargalo construtivo, pela necessidade de realização de inúmeras atividades que dependentes da mesma. O presente artigo apresenta o processo de desenvolvimento de uma nova solução para este problema, denominada elemento de integração, incluindo sua definição geométrica, funcional e conceitual, bem como a produção de protótipos virtuais e físicos (com diferentes materiais). Ao longo do desenvolvimento de diferentes modelos, foram realizadas avaliações pela equipe de projeto, a partir das quais foram introduzidas melhorias. Ao todo, foram produzidos 4 modelos virtuais, 3 modelos físicos na escala 1:1, e uma parede experimental. Os principais resultados apontam para a viabilidade e adequação da proposta ao sistema construtivo, bem como identificam o possível aumento de construtibilidade do sistema como um todo a partir da aplicação do elemento desenvolvido.

Nowadays, the use of modular systems in the construction industry has grown substantially in Brazil, and, among them, the structural masonry system stands out. However, several studies point out the high incidence of pathological manifestations related to this system, being the interface between masonry and windows one of the places with the highest number of problems, besides being a bottleneck in the production process, since several activities depend on that interface. This article presents the development process of a new solution, named integration element, its geometrical, functional, and conceptual definitions, as well as the production of virtual and physical prototypes (using different materials). The project team also conducted evaluations of the solutions after the construction of each prototype, when modifications were made. Four virtual and three physical prototypes were produced, and an experimental wall was built. The main results show the feasibility and adequacy of the proposed solution to the constructive system, as well as identify the potential increase of constructability of the system as a whole with the use of the proposed element.