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Kalantarian, S.H, Mirzargar, S.S, Rahmati-Holasoo, H, Sadeghinezhad, J, Mohammadian, T. (1399). Effects of oral administration of acidifier and probiotic on growth performance, digestive enzymes activities and intestinal histomorphology in Salmo trutta caspius (Kessler, 1877). سامانه مدیریت نشریات علمی, 19(3), 1532-1555. doi: 10.22092/ijfs.2019.119077
S.H Kalantarian; S.S Mirzargar; H Rahmati-Holasoo; J Sadeghinezhad; T Mohammadian. "Effects of oral administration of acidifier and probiotic on growth performance, digestive enzymes activities and intestinal histomorphology in Salmo trutta caspius (Kessler, 1877)". سامانه مدیریت نشریات علمی, 19, 3, 1399, 1532-1555. doi: 10.22092/ijfs.2019.119077
Kalantarian, S.H, Mirzargar, S.S, Rahmati-Holasoo, H, Sadeghinezhad, J, Mohammadian, T. (1399). 'Effects of oral administration of acidifier and probiotic on growth performance, digestive enzymes activities and intestinal histomorphology in Salmo trutta caspius (Kessler, 1877)', سامانه مدیریت نشریات علمی, 19(3), pp. 1532-1555. doi: 10.22092/ijfs.2019.119077
Kalantarian, S.H, Mirzargar, S.S, Rahmati-Holasoo, H, Sadeghinezhad, J, Mohammadian, T. Effects of oral administration of acidifier and probiotic on growth performance, digestive enzymes activities and intestinal histomorphology in Salmo trutta caspius (Kessler, 1877). سامانه مدیریت نشریات علمی, 1399; 19(3): 1532-1555. doi: 10.22092/ijfs.2019.119077

Effects of oral administration of acidifier and probiotic on growth performance, digestive enzymes activities and intestinal histomorphology in Salmo trutta caspius (Kessler, 1877)

Iranian Journal of Fisheries Sciences
مقاله 200، دوره 19، شماره 3، مرداد 2020، صفحه 1532-1555    اصل مقاله (981.16 K)
شناسه دیجیتال (DOI): 10.22092/ijfs.2019.119077
نویسندگان
S.H Kalantarian1؛ S.S Mirzargar* 1؛ H Rahmati-Holasoo1؛ J Sadeghinezhad2؛ T Mohammadian3
1Department of Aquatic Animals Health, Faculty of Veterinary Medicine, University of Tehran, Po Box 14155-6453. Tehran. Iran.
2Department of Basic Sciences, Faculty of Veterinary Medicine, University of Tehran, Tehran. Iran.
3Department of Clinical Sciences, Aquatic animal health Department, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz. Iran.
چکیده
This study was aimed to evaluate the single and combined effects of acidifier and probiotic on growth performance, digestive enzymes activities and intestinal histomorphology of Salmo trutta caspius. The juvenile fish with mean body weight 15±3 g were divided into 8 different treatments (in triplicates), including control, 5, 10 and 15 g sodium diformate kg-1 diet, respectively as T1, T2 and T3. Treatments namely T4, T5, T6 and T7 were received diets containing 0.2 g kg-1 commercial probiotic Bio-Aqua® in combination with 0, 5, 10 and 15 g sodium diformate kg-1 diet for 60 days, respectively. The results showed that T2 and T3 fish growth performance were improved significantly (p<0.05), following 30 days after administration, while T1 did not show the same pattern over the 60 days (p<0.05). The single probiotic treatment did not induce significant improvements in fish growth rate, digestive enzymes activities and intestinal morphometry though the combined treatments have been showed an intermediate level of improvement. The higher levels of chymotrypsin and trypsin have been observed at day 30 and the higher activities of lipase, protease and amylase could be seen at day 60 in the most acidifier treatments (p<0.05). The villi height and the thickness of epithelium have been reduced (p<0.05) because of single acidifier while the combined treatments led to either significant increase (p<0.05) or no change compared with corresponding single treatment. The addition of 1.0 g sodium diformate kg-1 diet can improve the fish growth rate in long-term by changing digestive enzymes activities, and combined treatments of probiotic and acidifier are mostly revealed antagonist effects.
کلیدواژه‌ها
Sodium diformate؛ Dietary organic acids؛ Growth performance؛ Enzyme activity؛ Caspian trout
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