Morteza Pashaei jalal; Anahita Bahrami babaali; Fatemeh Tabandeh; Seyed Davood Sharifi
Volume 25, Issue 4 , December 2023, , Pages 429-443
Abstract
Effect of different sources of probiotic and prebiotic on growth performance, carcass characteristics, intestinal microflora, and blood metabolites using 720 Ross 308 commercial male broiler chickens in a 3×3 factorial experiment with three levels of probiotic (without probiotic, probiotic type ...
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Effect of different sources of probiotic and prebiotic on growth performance, carcass characteristics, intestinal microflora, and blood metabolites using 720 Ross 308 commercial male broiler chickens in a 3×3 factorial experiment with three levels of probiotic (without probiotic, probiotic type I and type 2) and three levels of prebiotic (without prebiotic, prebiotic type 1 and type II), in a completely randomized design with nine experimental groups (four replications and 20 birds were studied in each replication. Birds that were fed with diets containing type 2 probiotics had a lower conversion factor (P<0.05). Diets containing prebiotic type 1 as well as diets containing probiotic type II and diets containing probiotic type II and two prebiotics under test reduced serum cholesterol and LDL concentrations (P < 0.05). The effect of the experimental treatments on carcass fat was not significant, but the birds fed diets containing prebiotic type 1 had less abdominal fat (P<0.05). At 21 days old, the population of ٍ E. coli in the ileum and ceca of birds that received probiotics, prebiotics, and their combinations decreased (P < 0.05). At 38 days of age, feeding the birds with probiotics and prebiotics and a combination of them reduced the population of E. coli in the ceca and increased lactobacillus in the ileum (P < 0.05). The results of this experiment showed that probiotics or prebiotics assayed in this study have positive effects on the increase of beneficial intestinal bacteria (Acid lactic bacteria), blood biochemical traits, and FCR in broiler chickens.
Mohammad Reza Nehirat; Somayyeh Salari; Mohammad Reza Ghorbani
Volume 21, Issue 1 , April 2019, , Pages 73-86
Abstract
In order to compare the effect of prebiotic and various types of fibers on performance and some physiological parameters of broiler chickens, an experiment was performed with 320 chicks with eight treatments in a completely randomized design. Dietary treatments were basal diet (corn-soybean meal), basal ...
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In order to compare the effect of prebiotic and various types of fibers on performance and some physiological parameters of broiler chickens, an experiment was performed with 320 chicks with eight treatments in a completely randomized design. Dietary treatments were basal diet (corn-soybean meal), basal diet with prebiotic (Biolex, MB40), and various sources of fiber (wheat bran (WB), soybean hull (SH), and palm kernel meal (PKM)). Different types of fiber and prebiotics were added to the diet at 1.5,3% and 2 g/kg, respectively. The birds that consumed 1.5% of PKM had the best feed conversion ratio compared to the other treatments except 3% of PKM and control diet (P<0.05). Abdominal fat pad significantly decreased in birds that consumed various types of fiber compared to the control diet (P<0.05). Apparent ileal digestibility of organic matter and crude protein increased in birds that consumed 3% palm kernel meal (P<0.05). The apparent ileal digestibility of ether extract decreased in birds that consumed PKM compared to the control diet (P<0.05). Dietary inclusion of various types of fiber caused a significant decrease in plasma cholesterol and triglycerides compared to the control diet (P<0.05). The results showed that dietary inclusion of PKM improved performance, decreased abdominal fat pad and E.coli and coliform population of cecum and increased digestability of crude protein and population of Lactobacillus of cecum in broiler chickens.
shokoufe ghazanfari
Volume 19, Issue 3 , November 2017, , Pages 627-643
Abstract
This study was carried out toinvestigate the effect ofmannan-oligosaccharide prebioticonperformance,egg quality, immune response, intestine ileum microflora and nutrient digestibility in laying hens fed various levels of crude protein. A total of 150 Hy-Line W-36 layinghens were assigned to a 2×3 ...
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This study was carried out toinvestigate the effect ofmannan-oligosaccharide prebioticonperformance,egg quality, immune response, intestine ileum microflora and nutrient digestibility in laying hens fed various levels of crude protein. A total of 150 Hy-Line W-36 layinghens were assigned to a 2×3 factorial arrangement of treatments. Experimental diets consisted of 3 levels of crude protein (recommended level for strain, 90 and 95% of recommended level) and 2 levels of mannan-oligosaccharides (0 and 0.1% of diet). Reduction of crude protein to 10% of basal diet resulted in decrease of egg weight, egg production, egg mass and feed conversion ratio (P<0.01). Supplementation of mannan-oligosaccharide into the diet improved egg production and egg mass (P<0.05). Newcastle antibody titer, primary and second antibody response against sheep red blood cell increased by supplementation of mannan-oligosaccharides (P<0.05). Reduction of crude protein to 5% reduced blood serum triglycerides concentration (P<0.05). Reduction of crude protein to 5 and 10 % of diet caused increases in digestibility coefficients of organic matter and Reduction of crude protein to 10 % caused decline of crude fat digestibility (P<0.05). Dietary supplementation mannan-oligosaccharides increased crude fat digestibility and decreased ileal E. coli count (P<0.05). So, supplementation of mannan-oligosaccharide at levels of 0.1% of diet improved immune parameters and intestinal ileum microflora. Similarly, crude protein at levels of 15.68% of diet did not reduced performance parameters of layinghens from age 47 to 57 weeks.
Mohammad reza Asadi; seyed davood sharifi
Volume 18, Issue 4 , December 2016, , Pages 775-788
Abstract
Effect of probiotic, prebiotic and synbiotic in protein-deficient diets on performance and intestinal histomorphometry were investigated in a 2 × 4 factorial experiment. The treatments were arranged in two levels of protein (recommended and 10 percent less than requirements), and four types of ...
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Effect of probiotic, prebiotic and synbiotic in protein-deficient diets on performance and intestinal histomorphometry were investigated in a 2 × 4 factorial experiment. The treatments were arranged in two levels of protein (recommended and 10 percent less than requirements), and four types of additives (without additives, probiotics Gallipro, prebiotic Technomos and a mixture of them) in a completely randomized design with eight treatments and four replicates and 25 birds per each. Birds fed on low protein diet had more feed intake and feed conversion ratio (P<0.05). Feed conversion ratio of birds fed on additives (probiotics, Probiotic and synbiotic) diets was lower than of others (P<0.05). The Relative weight of cecea in birds fed on diets containing low protein was higher than of others (P<0.05). An increase in crypt depth of duodenum and a reduction in villi length in jejenum and villi length: crypt depth ratio in deudenum and jejenum were observed by feeding protein dificeint diets (P<0.05). Villi length in the duodenum of birds fed on additive-less diet were lower than of birds fed diets containing prebiotic or mixture of probiotic and prebiotic (P<0.05). Villi length: crypt depth ratio in jejenum of birds fed on diets containing recommended protein and mixture of probiotic and prebiotic were higher than of others (P<0.05). Villi length in ileum were increased by adding the mixture of probiotic and prebiotic to the diet (P<0.05). Villi thickness in the ileum of birds that were received synbiotic was lower than of birds that fed on diets containing prebiotics (P<0.05). It could be concluded that using of probiotic, prebiotic and their mixtre in protein deficient diets, improve the feed conversion ratio in Japanese quail by improving intestinal histomorphometric parameters.
Mohammad Zarei; Mohammad Ehsani; Mehran Torki
Volume 13, Issue 2 , March 2012, , Pages 61-71
Abstract
To evaluate effects of adding two probiotics (Thepax and Yeasturer) and two prebiotics (Fermacto and A-Max), and one synbiotic (Biomin) to iso-caloric and iso-nitrogenous diet (ME = 2720 kcal/kg and CP =145 g/kg) on performance of laying hens and egg quality traits, 216 Lohmann LSL-Lite 76-wk old laying ...
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To evaluate effects of adding two probiotics (Thepax and Yeasturer) and two prebiotics (Fermacto and A-Max), and one synbiotic (Biomin) to iso-caloric and iso-nitrogenous diet (ME = 2720 kcal/kg and CP =145 g/kg) on performance of laying hens and egg quality traits, 216 Lohmann LSL-Lite 76-wk old laying hens were divided in 36 cages (n = 6). Productive performance of hens was recorded for six weeks and egg quality characteristics were measured on the last week of trial. Feed additives did not have significant effect on EP, FCR, FI and EM in the present study. Including diets with feed additives in the present experiment significantly increased EW. Egg shell weight and shell thickness were increased in the hens fed additive-included diets compared to hens fed the control diet. In conclusion, feed additives used in this investigation did have beneficial effects on egg quality characteristics in terms of egg shell weight and shell thickness, with no beneficial effects on hens' productive performance.