Researchers associated with Semear Digital, Embrapa, the University of São Paulo and the Federal University of Grande Dourados have tested drone-based monitoring of feedlot cattle in Mato Grosso do Sul, Brazil. The team followed a group over 112 days, flying at roughly 15 metres to capture images.
Computer-vision models detected animals, segmented their bodies and extracted measurements such as length and width. These observations were used to model growth over time and identify changes in growth rate that could inform management decisions.
The study concerns advanced development rather than a ready commercial weighing service. Researchers identify further validation, adaptation beyond Nelore cattle and an industrial partner as next steps. A growth-curve turning point alone does not establish the economically optimal sale date for every farm.
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DJI’s November 2022 Mavic 3 Multispectral launch combined a conventional camera, four spectral bands and RTK positioning in a compact aircraft intended for crop scouting and precision-agriculture surveys.
An AWS announcement in November 2023 described how Aerodyne’s DRONOS and Agrimor platforms linked aerial data, crop assessment and application services for farms in Malaysia and Indonesia.
DJI launched the Agras T50 and T25 internationally in April 2024, pairing different payload classes with an updated SmartFarm application for managing crop-protection missions and operational records.
