Fat and fatty acid content and composition of forages: A meta-analysis

Current trends in British dairy management regimens

In vitro rumen methane output of red clover and perennial ryegrass assayed using the gas production technique (GPT)

Comparative diet selection by cattle and sheep grazing two contrasting heathland communities

A near infrared reflectance spectroscopy (NIRS) method for rapid determination of nitrogen, phosphorous and potassium in diverse meadow grasses was developed with a view towards utilizing this material for biogas production and organic fertilizer. NIRS spectra between 12,000 cm−1 and 4,000 cm−1 were used. When validated on samples from different years to those used for the calibration set, the NIRS prediction of nitrogen was considered moderately useful with R2 = 0.77, ratio of standard error of prediction to reference data range (RER) of 9.32 and ratio of standard error of prediction to standard deviation of reference data (RPD) of 2.33. Prediction of potassium was less accurate, with R2 = 0.77, RER of 6.56 and RPD of 1.45, whilst prediction of phosphorous was not considered accurate enough to be of any practical use. This work is of interest from the point of view of both the removal of excess nutrients from formerly intensively farmed areas and also for assessing the plant biomass suitability for conversion into carbon neutral energy through biogas production.

/pdf/rapid-assessment-of-mineral-concentration-in-meadow-grasses-3tzq4by1kw.pdf

Rapid assessment of mineral concentration in meadow grasses by near infrared reflectance spectroscopy.

Biodiversity and animal feed: future challenges for grassland production

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Biodiversity and animal feed: future challenges for grassland production