Determination of nutritive value of wild chicory (Cichorium intybus) forage harvested at different maturity stage using in vitro and in situ measurements

Ozturk D., Bal M. A., Erol A., Sahin M., Ozkan C., Karakas E., ...More

Pakistan Journal of Biological Sciences, vol.9, no.2, pp.253-259, 2006 (Scopus) identifier

  • Publication Type: Article / Article
  • Volume: 9 Issue: 2
  • Publication Date: 2006
  • Doi Number: 10.3923/pjbs.2006.253.259
  • Journal Name: Pakistan Journal of Biological Sciences
  • Journal Indexes: Scopus
  • Page Numbers: pp.253-259
  • Keywords: Degradability, Gas production, Maturity stage, Metabolizable energy, Nutritive value, Wild chicory
  • Dokuz Eylül University Affiliated: No


The nutritive values of wild chicory, Cichorium intybus hays harvested at vegetative, flowering, late maturity stages were evaluated by chemical composition, in situ nylon bag and in vitro gas production techniques. In situ Dry Matter (DM), Crude Protein (CP) disappearance and in vitro gas production were determined at 0, 3, 6, 12, 24, 48, 72 and 96 h incubation times and their kinetics were described using the equation y = a + b(1-e-ct). Maturity had a significant effect on the chemical composition. Neutral Detergent Fibre (NDF), Acid Detergent Fibre (ADF) and Condensed Tannin (CT) contents increased with increasing maturity whereas Crude Protein (CP) and ash contents decreased. Maturity stage had also a significant (p<0.001) effect on in situ DM, CP disappearance, in vitro gas production and estimated parameters. Effective Dry Matter (EDMD), Effective Crude Protein Degradability (ECPD) and most of the estimated parameters of wild chicory harvested at vegetative stage were significantly (p<0.001) higher than those obtained at flowering and late maturity stages. Crude protein, EDMD, ECPD and Metobolizable Energy (ME) content wild chicory decreased as maturity advanced. Therefore wild chicory should be harvested at vegetative stage to obtain higher quality forage. © 2006 Asian Network for Scientific Information.