1. AFNOR, 1997. Aliments des animaux. Détermination séquentielle des constituants pariétaux. Méthode par traitement aux détergents neutre et acide et à l’acide sulfurique. (Animal Feedingstuffs. Sequential determination of cell wall contents. Methods with neutral, acid and concentrated sulphuric acid treatments). NF V 18–122, 11 pp.
2. Review. Nutritive evaluation of forages by near infrared reflectance spectroscopy;Andres;J. Near Infrared Spectrosc.,2005
3. Official Methods of Analysis;AOAC,1984
4. Effects of the nature of roughage and concentrate and their proportion on ruminal characteristics of non lactating goats, consequences on digestive interactions;Archimède;Anim. Feed Sci. Technol.,1996
5. ASPA, Commissione Valutazione Degli Alimenti, 1980. Valutazione degli alimenti di interesse zootecnico. 1. Analisi chimica. (Feedstuffs evaluation. 1. Chemical analysis). Zootec. Nutr. Anim. 6, 19–34.