Effects of Three Extrusion Temperatures of FFSB on Apparent Metabolizable Energy (AMEn), Apparent Nutrients Digestibility and Production Performance of Broiler Chickens

• Main Authors: ُS. A. Mirghelenj, َA. Golian, Hasan Kermanshahi, A.R. Raji
• Format: Article
• Language: fas
• Published: Ferdowsi University of Mashhad 2014-04-01
• Series: پژوهشهای علوم دامی ایران
• Subjects: Full fat soybean; Extrusion temperature; Nutrients apparent digestibility; Production Performance; Jejunal morphology
• Online Access: http://ijasr.um.ac.ir/index.php/animal/article/view/33764
• ISSN: 2008-3106; 2423-4001

In the first experiment, the nitrogen corrected apparent metabolizable energy (AMEn) and nutrients apparent digestibility of full fat soybean (FFSB) extruded at 145, 155 (common temperature) and 165 o C were evaluated. The corn-soy based diets were replaced with zero, 7.5, 15 and 22.5 % of each FFSB extruded at three temperatures during 15-21 d of age and AMEn and nutrients digestibility of EFFSB were calculated by regression analysis through extrapolation to 100 ٪ substitution in basal diet. The AMEn values of the FFSB samples extruded at 145, 155 and 165 o C obtained 3893, 3908 and 4037 kcal/kg, respectively and were not significantly different (P>0.05). The apparent digestibility of dry matter and ether extract in FFSB samples extruded at 165 o C, was higher as compared to FFSB extruded at 145 o C. In the second experiment, the effects of 15 % FFSB extruded at three temperatures, evaluated on performance, ileal digesta viscosity and morphology of jejunum mucosa of broiler chickens. Weight gain, feed intake and feed conversion ratio of 42 d chickens and ileal digesta viscosity of 21 d chickens were not affected by extrusion temperatures of FFSB. The jejunal villi lentgh of chickens increased with increase in extrusion temperature of FFSB, which resulted in significant increase (P