What question did this study set out to answer?

This study aims to compare the accuracy of portable near-infrared spectroscopy instruments with laboratory methods in determining the composition of total mixed rations for dairy buffaloes.

June 19, 2026Italian Journal of Animal ScienceOpen Access

Prediction of total mixed ration composition for dairy buffaloes using portable near-infrared spectrophotometers

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Authors

CEChiara EvangelistaUniversità degli Studi della Tuscia FJFrancesca Petrocchi JasinskiUniversità degli Studi della Tuscia FMFederico ManganelloUniversità degli Studi della Tuscia

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Implication

Randomized trial evaluates portable NIRS instruments against lab methods for TMR in buffaloes, indicating potential for on-farm use.

Key Points

This study aims to compare the accuracy of portable near-infrared spectroscopy instruments with laboratory methods in determining the composition of total mixed rations for dairy buffaloes.
Collected 230 TMR samples and analyzed with both portable NIRS devices and laboratory (LAB) methods.
Assessed parameters such as dry matter, crude protein, and fiber fractions using statistical comparisons including Bland-Altman and Passing-Bablok analyses.
Implemented Principal Component Analysis to explore data patterns and corrected NIRS bias using Passing-Bablok regression.
Good agreement for dry matter (mean difference 3.12% for NIRS_A, 0.99% for NIRS_B) and moderate for ether extract (<0.5%).
Significant biases detected for fibre, starch, and crude protein, with bias correction improving results substantially.
After corrections, DM and EE predictions closely matched LAB values, e.g., DM: slope = 1.00, intercept = 0.95.

Cite This Study

Evangelista et al. (2026) studied this question.

synapsesocial.com/papers/6a34dc5265a5b0777af2ca7e https://doi.org/10.1080/1828051x.2026.2679695

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Prediction of total mixed ration composition for dairy buffaloes using portable near-infrared spectrophotometers

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Implication

Key Points

Cite This Study

Prediction of total mixed ration composition for dairy buffaloes using portable near-infrared spectrophotometers

Discussion

Member takes

Implication

Key Points

Cite This Study

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