Changes of Intestine Dimensions Determined by Barley and Wheat-Based Non Starch Polysaccharides (NSP) in Broilers

The objective of this experiment was to determine the main intestine dimension changes generated by the NSP content of the combined forage and by beta glucanase utilization in concordance with barley and wheat proportion in the structure of the combined forage for broilers. In this viewpoint, we carried out an experiment consisted of 5 experimental variants, as follows: EG1 - fed with a combined forage without barley, EG2 - fed with a combined forage including 60% barley in its structure in the first and second growth periods as well, EG3 - fed with a combined forage similar with the one offered in EG2, but with addition of beta glucanase 75 ppm, EG4 – with the enzyme in a quantity of 100 ppm and EG5 - 50 % of the barley amount was replaced with wheat and we also added beta glucanase 75 ppm. At the end of the experiment, successive to chicken killing, we determined the main changes at intestine dimension level and muscle stomach. By incorporating barley in proportion of 60 % in the combined forage structure, the intestinal dimensions (length, diameter) get changed, and also the width of the muscle stomach. The incorporation of enzymes in the combined forage structure reduces the differences available between the intestinal dimensions in the group fed with enzyme and the one that was not fed with enzyme: there are significant differences (p<0.05) between the length of duodenum, cecum and ileonum of the chickens fed with forage including beta glucanase 75 ppm and the chickens fed with forage including barley without beta glucanase, of up to 20 %. There are also significant differences in the case of the muscle stomach diameter, of up to 25 %

Assessment and Control of the Antinutritional Effect Exerted by Non-Starch Polysaccharides from Triticale-Based Combined Forage, in Broilers

The objective of this experiment was to assess and fight against the NSP’s anti-nutritional effect from meat chickens’ alimentation. The experiment lasted for six weeks and was performed on a number of 120 chickens distributed in four experimental variants (LE1, LE2 and LE3, LE4). The hybrid used was Ross 308. We formed four experimental groups, as follows: the experimental group LE1 fed with a CF containing triticale in proportion of 40 % in its structure, the experimental group LE2 fed with a combined forage in which we had incorporated triticale in proportion of 60%, the experimental group LE3 fed with forage including triticale 60 % with supplementation of xylanase 100 ppm,  and the experimental group LE4 fed with forage including triticale 60% and xylanase in a quantity of 250 ppm. We could observe that the NSPs, NSPi and NSP total contents increased with the increase of triticale participation; so, the combined forage including 60 % triticale during the growth period from eclosion to 6 weeks presented up to 1.08 percentage points the NSPs content, up to 0.28 p% the NSPi content and up to 1.36 p% the NSPt content. Xylanase incorporation in a quantity of 250 ppm determines body weight increase with up to approx. 12% in the case of 6-week old chickens and feed conversion ratio reduction with up to 10 %. The utilization of triticale in proportion of 40-60 % in combined forage structure, for broiler chickens, is possible only in association with enzyme incorporation; these determine the reduction of intestinal viscosity at duodenum and jejunum level, with up to 15 %