Estimación del punto óptimo de corte en el cultivo de Ray Grass Híbrido (Lolium Hibridum H.) En el cantón Ibarra

The main objective of this study was to determine the optimal cutting point in hybrid ryegrass (Lolium hibridum) cultivation by evaluating the correlation between leaf number and cutting time with quality indicators such as soluble solids concentration, crude fiber content, and dry matter. The experimental design was a randomized complete block design (RCBD) with a factorial arrangement of two factors: leaf number (2.5 and 3 leaves) and cutting time (8:00, 10:00, 12:00, and 14:00). It was observed that crude fiber content increased in both the first and second cuts at the 3-leaf stage (24.64% and 22%) compared to the 2.5-leaf stage (22.58% and 18.13%) as the number of leaves increased, with higher values at the 3-leaf stage. This increase in crude fiber could influence forage digestibility, depending on the production objective. Likewise, dry matter showed an increasing trend, averaging 22.7% and 28.22%, with greater leaf development, suggesting that biomass accumulation increases as ryegrass matures, favoring its storage. Regarding Brix degrees, which indicate soluble solids concentration, higher values were recorded at 14:00 in both the first and second cuts (14.47% and 14.33%), which is associated with the forage's energy quality. The results obtained suggest that cutting hybrid ryegrass at 14:00 and at the 3-leaf stage optimizes forage quality in terms of digestibility, biomass accumulation, and energy quality. These findings provide a scientific basis for improving management practices in ryegrass production in the canton of Ibarra, contributing to the optimization of animal feeding.

• Κύριος συγγραφέας: Espinosa Farinango, Michael Alexander (author)
• Μορφή: bachelorThesis
• Έκδοση: 2025
• Θέματα: calidad forrajera, fibra bruta, materia seca, punto óptimo de corte, sólidos solubles
• Διαθέσιμο Online: https://repositorio.puce.edu.ec/handle/123456789/45542