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Research Article Open Access
This experimental trial was conducted to investigate the effects of dietary supplementations of prebiotic, probiotic, synbiotic and acidifier on broiler performance and organ's weights of broiler chickens. One hundred and sixty 1-dold Ross 308 broiler chickens were randomly assigned to one of five dietary treatments for six week. The dietary treatments were 1- Control, 2- Basal diets supplemented with prebiotic (1kg of ActiveMOS/ton) 3- Basal diets supplemented with probiotic (150/100/50gr of Protexin/ton of the starter, grower and final diets respectively) 4- Basal diets supplemented with synbiotic (1kg of Amax4x/ton) 5- Basal diets supplemented with acidifier (2 liter Globacid/ton). The highest body weight observed in synbiotic group, which was significantly (P<0.05) higher than control group. Prebiotic and acidifier groups showed similar body weight as synbiotic group (P>0.05) but higher than control group (P<0.05). The body weight of broilers in probiotic group was similar to control, prebiotic and acidifier groups (P>0.05). Daily weight gain were significantly (P<0.05) increased in experimental groups compare the control group. Total feed intake did not show any significant (P>0.05) difference between experimental groups. Feed conversion ratio decreased significantly (P<0.05) in synbiotic and acidifier groups compare the control group. However, there were no significant (P>0.05) differences in feed conversion ratio of broiler chickens in prebiotic and probiotic groups compared with control group. The weight of proventriculus, Gizzard, liver, and Bursa did not differ (P>0.05) between groups. Additionally, the weight of Spleen increased significantly (P<0.05) in probiotic group compared with control group.
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Author(s): Behrouz Rezanezhad Dizaji Sajjad Hejazi and Afshin Zakeri