Akbar Yaghobfar; Rezvan Yaghoubfar; Ehsan Zare Banadkoki
Volume 23, Issue 2 , July 2021, , Pages 223-233
Abstract
The experiment was conducted to investigate the effects of cell wall carbohydrates with diet supplemented enzyme on the function and expression of glucose transporter genes (SGLT1 and GLUT2), peptide transporter (PepT1) and mucin production (MUC2) in the small intestine of broilers. In this study, 1100 ...
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The experiment was conducted to investigate the effects of cell wall carbohydrates with diet supplemented enzyme on the function and expression of glucose transporter genes (SGLT1 and GLUT2), peptide transporter (PepT1) and mucin production (MUC2) in the small intestine of broilers. In this study, 1100 mixeddayold chickens (male and female), Ross 308 were used based on a completely randomized design with 11 treatments and five replications (20 birds per replication) for 42 days. Experimental diets included control diets, diets containing wheat, barley, wheat bran, rice bran, and hull less barley with and without enzymes, respectively. The results showed that the effect of diets containing wheat, barley and hull less barley with enzyme on the total live weight of broiler chickens at 42 days of age was significantly different (P <0.05).Cell wall carbohydrates of wheat, wheat bran and rice bran in diets increased pancreatic amylase activity (barley 3.02, wheat 5.99 U/mg CP of small intestinal tissue) (P < 0.05). The expression of the studied SGLT1 and MUC2 genes in the experimental diets without enzyme showed a significant increase compared to enzymes supplemented diet (P < 0.05). Also, among the groups of enzyme-supplemented diets, only wheat and rice bran groups were able to increase the expression of SGLT1, MUC2 and GLUT2 genes compared to the control group (P <0.05). In conclusion, supplementation of diets containing cell wall carbohydrates with enzyme affects the expression of glucose transport genes (SGLT1 and GLUT2), peptide transport (PepT1) and mucin production (MUC2) in the small intestine jejunum. This indicates the optimal function of the digestive system of broilers in terms of digestion and absorption of nutrients.
Hasan Dalvand; Arash Azarfar; abbas masoudi
Volume 19, Issue 4 , March 2018, , Pages 863-877
Abstract
Effects of dietary inclusion of rice bran on production performance, carcass characteristics, ileal digestibility of nutrients and some blood parameters were studied using 240 day-old (mixture of male and female chickens) Ross broiler chicken which assigned in a completely randomized design to four treatments ...
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Effects of dietary inclusion of rice bran on production performance, carcass characteristics, ileal digestibility of nutrients and some blood parameters were studied using 240 day-old (mixture of male and female chickens) Ross broiler chicken which assigned in a completely randomized design to four treatments with five replicates of 12 birds each. The experimental treatments included control diet and diets containing 2.5, five and 7.5% of rice bran. The results of this study showed that although dietary inclusion of rice bran for all inclusion levels resulted in significant reduction (P<0.05) in feed consumption and daily gain in starter, grower and entire rearing period, it had no undesirable effects on feed conversion ratio and production efficiency index for the entire rearing period. Even though the addition of rice bran at level of 5% caused significant increase (P<0.05) in relative weight of duodenum and ileum in comparison with control group, this increase did not lead to improved digestibility of nutrient. Dietary inclusion of rice bran linearly increased the relative weight of liver (P<0.05), but the relative weight of Bursa of Fabricius in chicks fed diets containing rice bran was not significantly different with that of in control birds (P>0.05). Feeding chicks with diets containing 7.5% rice bran significantly elevatedserum concentration of glucose compared with those fed diets containing 2.5 and 5% rice bran (P<0.05). Dietary inclusion of rice bran linearly increased serum concentrations of cholesterol and VLDL in broiler chicks (P<0.05). The results of current study showed that dietary inclusion of raw rice bran without any processing in the diet of broiler chickens is not appropriate.