somayeh daymeh; nazar Afzali; Seyyed Javad Hosseini-Vashan
Abstract
In order to investigate the effect of surplus jujube meal with or without Rovabio enzyme on growth performance, carcass traits and ileum morphology in broiler chicken; 320 male broiler chicks of Ross 308 were assigned to eight treatments, four replicates and 10 birds per each. The treatments included ...
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In order to investigate the effect of surplus jujube meal with or without Rovabio enzyme on growth performance, carcass traits and ileum morphology in broiler chicken; 320 male broiler chicks of Ross 308 were assigned to eight treatments, four replicates and 10 birds per each. The treatments included four levels of surplus jujube meal (0, 4, 7 and 10 percent) and two levels of Rovabio multi-enzyme (0 and 0.1 percent). The data were analyzed based on completely randomized design in factorial arrangement (2×4). The results showed that the birds fed diet containing 10% jujube with enzyme had a higher feed intake in the grower, finisher and whole periods as compared to control (no jujube and enzyme treatment; P<0.05). The main effect and interactions of enzymes and jujube had no effect on weight gain and feed conversion ratio. However, in the starter period when the birds fed diet contained 10% jujube along with enzyme, a higher weight gain than control was observed (P<0.05). Supplementation of 4% Jujube with enzyme increased the percentage of breast and the level of 7% jujube reduced abdominal fat compared to control (P<0.05). Compared to control, the birds fed diets containing 10% jujube with the enzyme had higher and lower villus height and width respectively (P<0.05). The ratio of villus height to crypt depth was the highest in birds fed enzyme (P<0.05). It is concluded that adding 10% of jujube to the diet of broiler chickens and supplementing it with enzyme could improve the performance and meat quality of broiler chicken.
Mohammad reza Asadi; seyed davood sharifi
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.