Inclusion of crushed corn grains and citrus pulp improves the quality of soybean silage

Abstract

We aimed to evaluate the effect of the inclusion of corn and citrus pulp as additives in soybean silage made in plastic (PVC) tubes. The experimental design was completely randomized, with a 2x4 factorial arrangement consisting of two additive groups (corn and citrus pulp) and four inclusion levels (no inclusion, 7, 14 and 21%). The experiment was conducted at the Forage Sector of the Lageado Experimental Farm, Faculty of Veterinary Medicine and Animal Science, UNESP, Botucatu, SP, and chemical composition analysis was carried out at the Laboratory of Bromatology. The soybean variety used was BMX Potência RR. Mechanical harvest occurred at the R7 phenological stage, at a height of 15 cm, using a harvester equipped with a two-row platform. The material was chopped into medium particles of 3 to 6 mm. After 45 days, the silages were analyzed for dry matter, crude protein (CP), total digestible nutrients, pH, ethereal extract, neutral detergent fiber, acid detergent fiber, lignin, total dry matter loss, and total carbohydrates (CHOS). The inclusion of corn (21%) and citrus pulp (14 and 21%) reduced CP values (P<0.05). Control silage contained less CHOS (P<0.05). The inclusion of corn meal is better than citrus pulp to improve the values of soybean silage.

Perfil fermentativo e diversidade microbiana em silagens de leguminosas e avaliação de cana-de-açúcar ensilada como ração em mistura total na alimentação de bovinos de corte.

“…A cultura da soja [Glycine max (L.) Merril] é originária da Ásia, e com o processo de globalização foi disseminada para os demais continentes, sendo inicialmente cultivada para produção de volumoso (Asekova et al, 2014). Na atualidade, a soja é a leguminosa mais cultivada para produção de grãos, com destaque para o óleo, usado na alimentação humana, e o farelo de soja, principal ingrediente utilizado na alimentação animal (Nkosi et al, 2016a;Müller et al, 2018;De Morais et al, 2021).…”