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B.GBP.2501 - Review of portable forage quality assessment tools

Other forms of spectroscopy include visible, mid infrared, Raman, and fluorescence spectroscopy.

Project start date: 08 May 2025
Project end date: 31 January 2026
Publication date: 29 October 2025
Project status: In progress
Livestock species: Grain-fed Cattle, Grass-fed Cattle, Sheep, Goat, Lamb
Relevant regions: National

Summary

Pasture nutrition forms the foundation of all grazing livestock systems, yet accurately and affordably measuring both the amount consumed and the nutritional value of pasture remains a persistent challenge. Enhancing nutritional management is key to boosting the efficiency and sustainability of grazing operations, meeting the standards of premium markets, and ensuring continued operational approval.

Objectives

The objective of this review was to summarise the potential for using portable and handheld spectrometers to measure feed and forage quality.

Key findings

Equipment developed in recent years to facilitate management of grazing cattle, like Optiweigh, provide opportunities for more refined management.

Benefits to industry

Readily available and near-real-time (e.g. on farm) Near Infrared Spectroscopy (NIRS) measurements of feeds, and of the diet selected by grazing livestock, provides for more refined management in beef and sheep production systems.

MLA action

With several other forms of spectroscopy that have potential application for the measurements of feeds and other aspects of livestock production, MLA is using the findings of this review to inform new opportunities for the industry.

Future research

Currently, calibrations for P+HH spectrometers need to be validated and modified on a regular basis to maintain their performance. It is imperative these calibrations are improved to have access to the best possible NIRS measurements of feeds and faeces.

More information

Project manager: Tony Parker
Contact email: reports@mla.com.au
Primary researcher: Central Queensland University