567 Lucrări tiinŃifice Zootehnie i Biotehnologii, vol. 41(1), (2008), Timioara THE INFLUENCE OF NON STARCH POLYSACCHARIDES (NSP) CONTENT FROM FORAGES ON NUTRITIVE AND BIOPRODUCRIVE INDICES AT BROILER CHICKENS INFLUENłA CONłINUTULUI ÎN POLIGLUCIDE NEAMIDONOASE (PNA) DIN FURAJE ASUPRA INDICILOR NUTRITIVI I BIOPRODUCTIVI LA PUII DE CARNE TEF LAVINIA, DRINCEANU D., PANDUR C., JULEAN C., LUCA I., TEF D, TETILEANU RAMONA, FOTA D. Banat's University of Agricultural Sciences and Veterinary Medicine Timisoara - Romania The NSP in cereal grains are composed predominantly of arabinoxylans (pentosans), beta glucans and cellulose. The main soluble NSP in these grains are arabinoxylans, while in barley and oats the are betaglucans. In this experiment we want to establish the influence of NSPs and NSPi from barley on nutritive and bioproductive indices at broiler chickens. The experiment was carried out on 120 broiler chickens divided in four experimental groups (CL, EL1, EL2 and EL3). The difference between the experimental groups was the different percentage of barley in the structure of combined forage and it was between 0 and 30% in the growth period from eclosion to 21 days and between 0 and 40% from 22 till 42 days of age. On the entire growth period the smallest forage consumption was registered by the control group, which had no barley in the structure of combined forage and registered the smallest values of NSPs and NSPi. The body weight at experimental groups was smaller with 3.25% but the differences were not statistical significant. In the growth period from 0-6 weeks in the experimental group EL1 the specific consumption is greater with 5.63% comparatively with the control group CL. Key words: nonstarch polysaccharides, nutritive and bioproductive indices, broilers Introduction In Europe and many other regions worldwide, cereals and oilseed meals, representing valuable sources of energy and protein, are commonly used as ingredients in animal feeds. However these feedstuffs contain considerable amounts of digestible carbohydrates as well. These fractions of carbohydrates are also referred to as non-starch polysaccharides (NSP) (Bailey, 1973). A number of soluble and insoluble NSP have been identified in cereals and oilseed meals, among which the most important are arabinoxylans, betaglucans and cellulose. Soluble and insoluble NSP have the ability to bind water , thereby increasing viscosity of the digesta in the gut. Insoluble NSP are known to encapsulate nutrients within the fibre matrix of the cell walls. (Hopwood et all, 2004; Pluske et