Evaluation of a low-cost multispectral imaging system for rapid estimation of chemical composition in tropical grasses
Palabras clave:
Multispectral spectroscopy, chemical compounds, livestock forage, Urochloa, MegathyrsusResumen
The evaluation of tropical forage nutritional quality using conventional analytical methods is costly and time-consuming, limiting its application in livestock systems. The objective of this work was to develop and validate a low-cost multispectral image spectroscopy system (AFT camera), to estimate the chemical composition of tropical grasses. A total of 332 forage samples, including 293 Urochloa spp. and 39 Megathyrsus maximus (Jacq.) B.K.Simon & S.W.L.Jacobs, were analyzed using standard laboratory methods and multispectral image regression analysis. Calibration models showed coefficients of determination (R²) ranging from 0.36 to 0.98, while validation models exceeded 0.60 for neutral detergent fiber and 0.70 for crude protein and digestibility. No significant differences (p > 0.05) were detected between observed and predicted values. The AFT system demonstrated potential as a rapid and low-cost tool for forage quality assessment, although calibration performance varied according to forage species and chemical component evaluated.
Referencias
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Derechos de autor 2026 Julián Arroyave-Jaramillo, Daniel M. Pineda-Tobón, Luis A. Giraldo-Valderrama, Juan C. Pérez-Naranjo, Luis A. Chel-Guerrero, David Betancur-Ancona
Esta obra está bajo una licencia internacional Creative Commons Atribución-NoComercial-CompartirIgual 4.0.
