Predicting growth rates or determining the needs for supplementary feeding of grazing animals requires knowledge of the nutritive value of the diet the animals are consuming. Faecal analyses are non-invasive and effective methods for compiling information about the diets of animals. In this study the usefulness of faecal chemistry and near infrared spectroscopy (fNIRS), either used individually or in combination to predict the quality of mixed diets fed to sheep was investigated. Faecal nitrogen, ash, neutral detergent fibre and lignin contents can be successfully used to predict the metabolisable energy content and the organic matter digestibility of the diet as well as the type of rumen fermentation (in terms of short chain fatty acids) whilst fNIRS calibration equations can be successfully used to predict the crude protein, total phenolic and total tannins contents of mixed diets consumed by sheep.
|Title of host publication||25th Annual Conference|
|Subtitle of host publication||Adapting mixed farms to future environments|
|Editors||Cathy Waters, Denys Garden|
|Place of Publication||Orange, NSW Australia|
|Publisher||The Grassland Society of NSW Inc.|
|Number of pages||5|
|Publication status||Published - 2010|
|Event||The Grassland Society of NSW Annual Conference - Dubbo, NSW, Australia|
Duration: 28 Jul 2010 → 29 Jul 2010
|Conference||The Grassland Society of NSW Annual Conference|
|Period||28/07/10 → 29/07/10|
Krebs, G., Kumara Mahipala, M. B. P., McCafferty, P., & Dods, K. (2010). Determining the quality of diets of grazing animals. In C. Waters, & D. Garden (Eds.), 25th Annual Conference: Adapting mixed farms to future environments (pp. 80-84). The Grassland Society of NSW Inc..