Estabilidad aeróbica del ensilaje de pasto Marandú fertilizado con diferentes niveles de quelato de boro.

Abstract

The study was conducted at the Río Suma Experimental Farm, located in the canton of El Carmen, Manabí province, with the objective of evaluating the aerobic stability of Marandú grass silage fertilized with different levels of boron chelate. A randomized complete block design (RCBD) was used, including five treatments: 0 liters of boron chelate (control), 0.50, 1.00, 1.50, and 2.00 liters. In the temperature variable, significant differences (p<0.01) were observed across intervals of 0, 24, 48, 72, 96, 120, and 144 hours in silage harvested at 30 days of growth. At 0 hours, treatments 4 and 5 recorded an average temperature of 29.00 °C, while at 120 hours, treatments 3 and 5 reached 30.00 °C. At 144 hours, treatments 1 and 3 showed an average of 28.75 °C. In the pH variable, the lowest values were observed in treatment 5, with 3.85 at 48 hours and 4.70 at 144 hours. In contrast, treatment 1 exhibited an increasing pH trend, reaching 6.55 at 144 hours. The use of boron chelate demonstrated significant benefits in improving the aerobic stability of silage, optimizing pH and temperature after opening. Applying the evaluated treatments is recommended to extend stability and enhance the quality of Marandú grass silage.