Effects of the types of sealing on chemical-fermentation characteristics of corn silage from the feed out face of trench silos

• Autor(a) principal: Neumann, Mikael
• Data de Publicação: 2021
• Outros Autores: Cristo, Fernando Braga, Pontarolo, Giovanna Bobato, Silva, Marlon Richard Hilario da, Heker Junior, Julio Cezar, Sidor, Fernando de Souza, Plodoviski, Daniel Corrêa, Czelusniak, Cherlyson, Machado, Milena Pontarolo
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Semina. Ciências Agrárias (Online)
• Texto Completo: https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/41864
• topic: Bromatology; Dry matter digestibility; Fermentation process; Nutrient loss; Nutritional composition.; Bromatologia; Digestibilidade da matéria seca; Processo fermentativo; Perda de nutrientes; Composição nutricional.

The objective of this study was to evaluate the efficiency of different types of sealing on the physical losses of dry matter, chemical and fermentation characteristics and in situ digestibility of the dry matter of corn silage stored in the feed out face (ramp) of trench silos. The experimental design used randomized blocks, composed of three treatments, namely: T1 - corn silage preserved with double-sided polyethylene of 110 µm thickness (conventional seal); T2 - corn silage preserved with double-sided polyethylene of 200 µm thickness (double-sided); and T3 - corn silage preserved with oxygen-impermeable film composed of double-sided polyethylene of 80 µm thickness on a translucent vacuum polyamide film of 20 µm thickness (double sealing), with four repetitions each. The use of double-sided polyethylene with 200 µm thickness (double-sided) and oxygen impermeable film composed of double-sided polyethylene and polyamide (double sealing), were effective in preserving the chemical composition, fermentation profile, raw protein composition and fiber quality, in addition, the use of these polymers resulted in greater ruminal digestibility of dry matter and reduced the pH, temperature, temperature gradient and physical losses of corn silage from the feed out face (ramp) of trench silos compared to the conventional sealing.