Nutritive value of some forbs from permanent grasslands | Hranilna vrednost nekaterih zeli s trajnega travinja
2010
Lukac, B., Agricultural Institute of Slovenia, Ljubljana (Slovenia). | Znidarsic, T. | Verbic, J. | Verbic, J. | Kramberger, B.
At four locations on a permanent lowland grasslands in Slovenia the following samples of forbs were collected at the time of first and third cutting date: common yarrow (Achillea millefolium L.), brown knapweed (Centaurea jacea L.), ribwort plantain (Plantago lanceolata L.), creeping thistle (Cirsium arvense (L.) Scop.), hedge bedstraw (Galium mollugo L.), field scabiosa (Knautia arvensis L.), corn mint (Mentha arvensis L.), dandelion (Taraxacum officinale Weber), bulbous buttercup (Ranunculus bulbosus L.), tall buttercup (Ranunculus acris L.), creeping buttercup (Ranunculus repens L.) and burnet saxifrage (Pimpinela Saxifraga L.). Concentrations of water-soluble carbohydrates (WSC), crude protein (CP) and crude fibre (CF) were determined in samples. Concentrations of net energy for lactation (NEL) and metabolizable energy (ME) were assessed on the basis of the amount of gas which was produced during the incubation of samples with rumen liquor in vitro. The concentration of WSC ranged from 71 g in the sample of creeping thistle to 210 g/kg of dry matter in creeping buttercup. The concentration of CF was the lowest (150 g/kg of dry matter) in the first cut ribwort plantain and the highest in the brown knapweed at the time of third cutting (320 g/kg of dry matter). The concentration of CP was the highest in dandelion (200 g/kg of dry matter). The estimated NEL concentration ranged between 4.92 and 7.07 MJ and the concentration of ME ranged from 8.34 to 11.42 MJ/kg of dry matter. The highest energy value was determined in samples of dandelion, in buttercups and in ribwort plantain.
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