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Chemical Bromatological Evaluation of Biomass for Silage of the Winter Cereals

Journal of Chemistry and Chemical Engineering 2017年第4期11卷 152-156页

作者： Carlos Eugenio Fortes Teixeira renato serena fontaneli Tecnico em Mecdnica Engenharia Mecanica IFSul Campus Passo Fundo Passo Fundo RS Brazil Agronomia ppgAgro UPF Universidade de Passo Fundo Pesquisador EMBRAPA TRIGO Passo Fundo RS Brazil

Winter cereals are cultivated in order to produce grain for food and feed, green forage and haylage for cattle. The objectives of this study are to assay the production and chemical characteristics bromatological of winter cereal forages. The factorial arrangement of treatments 5 × 2 （5 cultivars and two cutting heights--low 7-10 cm and 20 cm from the soil surface） harvested when the grain was at the dough stage. Genetic materials tested were rye BRS Serrano, wheat BRS Umbu and BRS Pastoreio, triticale BRS Saturno, barley BRS Aliensa and Brevis oats BRS Centauro. The experimental design was a randomized complete block design with four replications. The assay carried out to forage, BRS Centauro showed oat forage yield higher than the other genotypes. Barley BRS Aliensa stood out for DMD （dry matter digestibility） and CP （crude protein） for the two tested cutting heights. BRS Pastoreio wheat had lower NDF （neutral detergent fiber） concentration than BRS Serrano rye.

关键词： Cellular content assay physiologic production forage.

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Sensory Evaluation of Winter Cereal Silage

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Journal of Chemistry and Chemical Engineering 2017年第3期11卷 102-106页

作者： Carlos Eugenio Fortes Teixeira renato serena fontaneli Tecnico em mecdnica Engenharia Mecdnica--IFSul--Campus Passo Fundo Passo Fundo Brazil Agronomia/ppgAgro UPF Universidade de Passo Fundo Passo Fundo Brazil

Silage is aimed at conservation of green fodder, with minimal losses and that this kind of food, does not occur formation of toxic compounds for animals. Practical aspects become important when control ＂in loco＂, reflects management practiced in the property. There are different sensory evaluation techniques. The objective of this work was to study the applicability of the German system, now used in sensory evaluation of winter cereals （wheat silage and haylage oats）. For quantitative analysis of silage （pH） that was used potentiometer. In determining the qualitative analysis was used German method adapted. Relating them to sensory characteristics such as smell, texture and color of the fodder saved by assigning a score to each sensory： a ＂key＂ predetermined quality identification. For multiple comparisons for film types tested in oat silages BRS Centauro, the results show that the qualitative sensory attributes evaluated by rating corresponded to the quantitative attributes （pH） evaluated, with no difference. For multiple comparisons in the silages, for all test loads in both wheat genotypes results showed no difference between the qualitative evaluation （sensory） and quantitative.

关键词： Ensiling pre drying quality.

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Digital Micrometer Used in Thickness Measurement of Plastic Film Compared to Standardized Instrument

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Materials Sciences and Applications 2017年第7期8卷 577-583页

作者： Carlos Eugênio Fortes Teixeira Ingrid de Almeida Rebechi renato serena fontaneli Técnico em Mec&acire nica/Engenharia Mec&acire nica—IFSul—campus Passo Fundo Passo Fundo Brazil Agronomia-IDEAU. Bolsista PIBIC/CNPq Passo Fundo Brazil Agronomia/ppgAgro UPF—Universidade de Passo Fundo/pesquisador EMBRAPA TRIGO Passo Fundo Brazil

Different types of plastic films are used in agriculture to cover silos storing silage. The most important characteristics of a tarpaulin for sealing the silage are: thickness, color and polymer used in the manufacture of the film. The objective of this study is to measure and compare the thickness, the use of two instruments (digital micrometer and digital thickness gauge) in plastic films (polyethylene, polyester and polyester/vinyl). This methodological analysis for the use of micrometer digital, for future use (Agronomy and Veterinary sciences). In comparison the thickness of the three factors. 5% by Tukey test revealed that for polyethylene, there was no significant difference between factors. This methodology is satisfactory for the types of films and range of thicknesses studied.

关键词： Methodology Standardization Polymers

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