2024-12-31 JOURNAL OF APPLIED ANIMAL RESEARCH 2024 52(卷), 1(期), (null页)
We determined the most suitable level of inclusion of spineless cactus in silage of BRS capia & ccedil;u on the fermentative profile and nutritional value of the silage produced. The treatments consisted of the inclusion of spineless cactus (Opuntia spp.) in BRS capia & ccedil;u grass ensilaged with increasing proportions (15%, 30%, 45%, and 60% of natural matter-NM) and a control treatment. A completely randomized design with five treatments and eight replications was used. The BRS capia & ccedil;u grass was harvested after 100 days of regrowth. For the silage, experimental PVC silos of known weights, 50 cm long and 10 cm in diameter, were used. The inclusion of spineless cactus in BRS capia & ccedil;u grass ensilage resulted in a linear increase in pH (P < 0.01), ammonia nitrogen content (P < 0.01), and effluent losses (P < 0.01). Quadratic effects were observed for lactic acid (P < 0.01) and acetic acid (P < 0.01), with respective maximum points for 22% and 24%. The highest values of the digestibility of dry matter (DM), organic matter, and neutral detergent fibre were found for inclusion levels of 47.11%, 42.35%, and 35.44%, respectively. The most suitable inclusion level was between 15 and 30% of NM.