Caracterização de silagem de sorgo aditivado com alimentos úmidos

• Autor(a) principal: Oliveira, Palloma Vitória Carlos de
• Data de Publicação: 2021
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Repositório Digital da Universidade Federal Rural do Semi-Árido (RDU)
• Texto Completo: https://repositorio.ufersa.edu.br/handle/prefix/6748
• topic: Sustentabilidade; Palma forrageira; Melão; Resíduos agroindustriais; Sustainability; Forage palm; Melon; Agro-industrial waste; CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA

The objective was to evaluate the chemical-bromatological composition, the fermentative profile and the fermentative losses of sorghum silage added with alternative products of melon and forage palm refuse, as well as to identify and indicate the best treatment among these for later use in the feeding of ruminants. For this, forage sorghum silages were added with melon refuse fruit (zero, 2%, 4%, 6% and .8% in the natural material of the sorghum silage) and forage palm (zero, 10%, 20%, 30% and 40%). Experimental silos of 0.00314 m3 of polyvinyl chloride tubes were used and after 34 days of storage, the silos were opened to measure dry matter (DM), crude protein (PB), neutral detergent fiber (NDF), acid detergent fiber ( FDA), ether extract (EE), ammoniacal nitrogen (N-NH3), mineral matter (MM), nitrogen insoluble in acid detergent (NIDA), nitrogen insoluble in neutral detergent (NIDN), total carbohydrates (CHOs), cellulose (CEL) ), hemicellulose (HEM), lignin (LIG), total digestible nutrients (NDT), in vitro digestibility of dry matter (DIVMS) and in vitro digestibility of organic matter (DIVMO). Juice was extracted from a fraction of the sample, determined from the fermentation profile, hydrogen potential (pH) and ammonia nitrogen (N-NH3). Part of the juice was frozen for later determination of acetic (AA), propionic (AP), butyl (AB) and lactic (AL) acids by gas chromatography. The silos were weighed after closing and before being opened to assess dry matter losses (PMS), gas losses (PG) and effluent losses (PE). The results were linearly influenced (P <0.05) by the increase in melon scrap levels, with the exception of NDT, AP and PE. For sorghum silages with forage palm, the results were linearly influenced (P <0.05), with the exception of EE, PMS, PG and PE. The addition of 8% of the melon refuse and 40% of the forage palm in the sorghum silages, provided improvements in the chemical-bromatological composition and fermentative profile, as well as minimizing losses. Such proportions are more suitable for feeding ruminants, as they are capable of providing a significant reduction in animal feed costs, in addition to minimizing the impacts caused to the environment. However, in order to determine the real veracity of the results of the present research, studies on the consumption and performance of animals fed with this type of silage, as well as analyzes related to meat quality, are necessary