Nutritive value of grassland plants: content and prediction of gross energy
2004
Daccord, R. | Arrigo, Y. (Agroscope Liebefeld-Posieux, Eidgenoessische Forschungsanstalt fuer Nutztiere und Milchwirtschaft (ALP), Bern (Switzerland)) | Jeangros, B. | Scehovic, J. | Schubiger, F.X. | Lehmann, J.
The gross energy content (GE) was determined by calorimetry in 439 samples of 10 main grassland plants. It is mainly influenced by the content of crude protein (R2 = 0.31) and organic matter (R2 = 0.26). The effect of these components is greater in herbs than within legumes and grasses. The stage of development and the cuts have a small effect on the GE content. Based on the content of organic matter and crude protein, the equations of prediction give GE values with a precision of +/-0,3 MJ/kg DMand which are close to the values obtained with the standard equations used in Switzerland, France and Germany.
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