Amir Hossein Alizadeh-Ghamsari; sayed abdoullah hosseini; Hamidreza Khoshkerdar; Mohammadreza Soleymani Damaneh
Volume 24, Issue 2 , July 2022, , Pages 177-187
Abstract
This study was conducted to evaluate the effects of adding different levels of a domestically produced synbiotic to drinking water on production traits, carcass characteristics and the small intestinal microbial population of broiler chickens. Four hundred one-day-old Ross 308 broilers (a mixture of ...
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This study was conducted to evaluate the effects of adding different levels of a domestically produced synbiotic to drinking water on production traits, carcass characteristics and the small intestinal microbial population of broiler chickens. Four hundred one-day-old Ross 308 broilers (a mixture of two sexes with equal proportion) were used in a completely randomized design with 4 treatments, 5 replicates, and of 20 birds per each replicate. Experimental treatments included adding levels: zero (control), 50, 100 and 150 g of synbiotic (Biopoul) per 1000 liters of drinking water. At 42 days of age, the addition of 50 or 100 g of synbiotic per 1000 liters of drinking water significantly decreased feed conversion ratio (P < 0.05). The increase of production index in the group receiving 100 g of Biopoul compared to the control showed a tendency (P = 0.08). Biopoul in the levels of 50, 100 and 150 g increased the total number of lactobacilli and decreased the number of yeasts and molds, coliforms and total gram-negative bacteria in the ileum compared to the control (P<0.05). According to the obtained results, the use of 100 g of synbiotic Biopoul per 1000 liters of drinking water of broiler chickens can improve the production index while helping to balance the small intestinal microbial population.
masood didarkhah; hadi sarir
Volume 20, Issue 2 , August 2018, , Pages 293-304
Abstract
The purpose of this experiment was to evaluate the effect of probiotic and peribiotic supplements on performance of Holstein dairy cows. For this purpose, 40 Holstein dairy cows with daily milk production of 33 ± 0/8 kg and initial weight 700 ± 40 kg were divided into four groups in a completely ...
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The purpose of this experiment was to evaluate the effect of probiotic and peribiotic supplements on performance of Holstein dairy cows. For this purpose, 40 Holstein dairy cows with daily milk production of 33 ± 0/8 kg and initial weight 700 ± 40 kg were divided into four groups in a completely randomized design. The experimental treatments consisted: 1- control group (basic diet) 2- probiotic group (base diet + 4 gr probiotic per head per day) 3- prebiotic group (base diet + 14 gr perbiotypes per Ross per day) 4- Synbiotic group (base diet + 4 gr probiotic + 14 gr perbiotic per head per day). The results of this experiment showed that there was a significant difference between the average duration of chewing, rumination and eating among different diets (P <0.05). The most duration of chewing, rumination and eating belonged to the group that consumed probiotics and had a significant difference with other groups (P <0.05). Probiotics consumption increased the amount of daily milk production, milk production with 3.5% fat and milk production with 4% fat, and a significant difference (P <0.05) with the control group (basal diet without additive). Feed efficiency increased in supplementary rations and resulted in a better performance of probiotic diets. Health indicators, consistency and fluidity of stool in supplementary diets have also improved.
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.