Qualidade da silagem de aveia preta sob efeito de estádios fenológicos, tamanhos de partícula e pré-murchamento

Paris, Wagner; Zamarchi, Gustavo; Pavinato, Paulo Sérgio; Martin, Thomas Newton

doi:10.1590/s1519-99402015000300002

Cited by 10 publications

(11 citation statements)

References 16 publications

(8 reference statements)

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“…Zamarchi et al (2014), in an experiment with oat, ensiled fodder after 6 hours of dehydration and obtained NDF values of 66.69% and ADF of 38.36. Yet, Paris et al (2015), in an experiment with oat silage cut in the early flowering and dehydrated by a mechanical method, obtained NDF of 55.8% and ADF of 37.21%, which are values lower than were the ones we found in this study. Those authors highlighted that the low production of effluents was due to forage dehydration, limiting losses of soluble compounds and preventing the increase in fiber fractions.…”

Section: Resultscontrasting

confidence: 90%

“…By harvesting oat at flowering stage through mechanical dewatering of 6 hours under the sunlight, Paris et al (2015) found a silage with 24.36% DM. Conversely, after three days of glyphosate application (0.5 L ha -1 ), Bueno (2015) obtained oat silage with 37.6% DM at reproductive stage, thus being considered the best treatment for this parameter.…”

Section: Resultsmentioning

confidence: 99%

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Mechanical and chemical dehydration for pre-drying of black oat silage

Carneiro

Neumann

Heker

et al. 2017

SCA

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This study aimed to evaluate mechanical and chemical methods of forage dehydration in the production of black oat pre-dried silage (Avena strigosa Schreb) under different dehydration times. The experiment was conducted in a randomized block experimental design with five replications and arranged in a 2 x 6 factorial scheme. We assessed two methods of dehydration, mechanical and chemical, over six dewatering times, being made at 0, 3, 6, 9, 12, and 15 days after cutting or application of glyphosate. Harvest took place at 88 days after emergence, at pre-flowering. We evaluated dry biomass production at harvest, dry matter losses during dehydration in the field, losses during ensiling, gauging effluent output, and pre-dried silage chemical composition. There was an interaction between dehydration method and harvest time for most of the production characteristics. Chemical dehydration showed an enhanced dry matter recovery at the field level, however, unsuitable for pre-dried silage. The longer the dehydration period, the lower the losses for both analyzed methods; nevertheless, the chemical method reached unsatisfactory DM contents to produce good quality silage. Key words: Avena strigosa Schreb. Bromatology. Winter cereals. Conserved forage. Dry matter recovery. ResumoObjetivou-se avaliar a interferência dos métodos mecânico e químico de desidratação da forragem na confecção de silagem pré-secada de aveia-preta (Avena strigosa Schreb), sob diferentes tempos de desidratação. O experimento foi realizado em delineamento de blocos ao acaso, com 5 repetições, em esquema fatorial 2 x 6, sendo dois métodos de desidratação, mecânico e químico, sobre seis tempos de desidratação, sendo 0, 3, 6, 9, 12 e 15 dias após o corte ou aplicação do herbicida glifosato. A colheita se deu aos 88 dias após emergência, em estádio de pré-florescimento. Foram avaliadas produção de fitomassa seca no momento da colheita, perdas de fitomassa seca durante a desidratação à campo, perdas durante a ensilagem, com aferição da produção de efluentes, além da composição bromatológica da silagem pré-secada. Houve interação entre método de desidratação x época de colheita, para a maioria

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Section: Resultscontrasting

confidence: 90%

Section: Resultsmentioning

confidence: 99%

Mechanical and chemical dehydration for pre-drying of black oat silage

Carneiro

Neumann

Heker

et al. 2017

SCA

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“…In both stages, the lowest levels of NDF were found in ryegrass and rye. Among the two stages, the NDF content increased according to the progression of the stages, being the highest in the reproductive stage, when the quality of the forage diminishes drastically (PARIS et al, 2015). An increase in the NDF content was found to be the primary factor for the decline in the nutritional quality of a forage species (KOZLOSKI et al, 2005).…”

Section: Resultsmentioning

confidence: 99%

Nutritional and morphostructural characterization of pre-dried winter grass silage

Simionatto

Maeda

Fluck

et al. 2019

SCA

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The aim was to evaluate the productive quality and fermentative as like the nutritional parameters of winter grass silage in the vegetative and reproductive stages in two consecutive crop years. The experiment was carried out at Universidade Tecnológica Federal do Paraná, Campus Dois Vizinhos, Brazil, from April 2012 to December 2013. The experimental field had a 560 m2 area; it comprised 32 plots of 16 m2 each, with a space of 0.5 m between blocks. Four winter grass species were used, including Avena sativa L. ‘IPR 126’ (white oat), Avena strigosa Schreb. ‘IAPAR 61’ (lopsided oat), Lolium multiflorum Lam. ‘Barjumbo’ (ryegrass), and Secale cereale L. ‘Temprano’ (rye), being evaluated through silage making in two phenological stages, vegetative and reproductive. The experimental design was randomized block in a bifactorial scheme (cultivar and phenological phase of pasture). The experimental materials were ensiled in polyvinyl chloride (PVC) microsiles, with four replicates per treatment. Pre-drying and ensiling allowed the preservation of material quality. The highest yields of dry matter per hectare were obtained in the reproductive stage; however, the nutritive content at this stage was relatively lower when compared with vegetative. The rye presented relatively less variation of the nutritional composition between the studied phenological stages. The ash content of the forage influenced the pH of the silage, and the highest pH was verified at the vegetative stage. Even with pre-dehydration, the vegetative stage presented a greater loss of effluents than the reproductive stage.

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“…Black oat (Avena strigosa) presents a high tillering capacity, high production of dry matter (3,4) , and resistance to periods of low rainfall and pests. In addition, black oat nutritional quality is satisfactory in relation to animal requirements (5,6) . In this way, the interest in ensiling winter crops has grown recently, leading to investments in research to obtain new genotypes, with high dry matter yield and adaptation to cultivation under Brazilian conditions.…”

Section: Introductionmentioning

confidence: 99%

Nutritional value and digestible dry matter production of oat genotypes for ensiling

et al. 2020

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This study evaluated dry matter yield and nutritional characteristics of different oat genotypes (Avena spp.) for ensiling. Treatments consisted of genotypes of white oat IPR 126 (Avena sativa), black oat Cabocla IPR and Agrocoxilha (Avena strigosa), and BRS Madrugada and BRS Centauro (Avena vertis). Oats were harvested at the phenological stage of milk/dough grain. The design was a completely randomized block scheme, with five treatments and three replications per treatment. The IPR Cabocla genotype showed the highest dry matter content (before and after silo opening) and in vitro dry matter digestibility of fresh forage. No differences were observed for in vitro dry matter digestibility and dry matter losses among silages. The highest silage digestible dry matter yield (kg ha-1) was observed for the BRS Centauro genotype. Thus, despite the better nutritional quality presented by the IPR Cabocla genotype before ensiling, BRS Centauro genotype presented a higher yield of digestible dry matter per hectare.

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Qualidade da silagem de aveia preta sob efeito de estádios fenológicos, tamanhos de partícula e pré-murchamento

Cited by 10 publications

References 16 publications

Mechanical and chemical dehydration for pre-drying of black oat silage

Mechanical and chemical dehydration for pre-drying of black oat silage

Nutritional and morphostructural characterization of pre-dried winter grass silage

Nutritional value and digestible dry matter production of oat genotypes for ensiling

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