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Citing articles: 1 View citing articlesThe effects of microencapsulated garlic (Allium sativum) extract on growth performance, body composition, immune response and antioxidant status of rainbow trout (Oncorhynchus mykiss) juveniles
This study aims to evaluate the effects of Bifidobacterium animalis PTCC-1631 and Bifidobacterium lactis PTCC-1736 on growth, nutrient digestibility, carcass composition, and intestinal microbiota of Oncorhynchus mykiss fry, which had initial body weights of 0.58 ± 0.19 g. Four iso-nitrogenous diets with probiotics, namely T (1 × 10 CFU g), T (2 × 10 CFU g), T (3 × 10 CFU g), and control without probiotics were obtained. Total 480 fish were randomly divided in four treatments (three experimental treatments and a control), each with 4 replicates including 16 tanks each filled with 15 L of water (water exchange rate of 2 L min and aerated with air stone) with a density of 2 fry L. The water mean temperature was 17.66 ± 1.33 °C, and the mean pH value was 7.63 ± 0.08. After eight weeks of the experiment T that fed with a diet contained the lowest bacterial concentration showed higher growth, nutrient utilization, digestibility, and lower feed conversion ratio (P < 0.05) in comparison with T2, T3, and the control. Also, the highest count of lactobacillus bacteria was observed in T that was fed with a diet containing the lowest probiotic. The lowest concentration of Bifidobacterium strains in this study induced better growth and increased digestion and nutrient utilization in trout fry.
In this study, the hematological and growth performance of beluga (Huso huso) fed with herbal supplemented diet were studied. Dietary treatments were control (normal diet), 1 g garlic (Allium sativum) and 1 g nettle (Urtica dioica) per 100g feed for 60 days. No significant difference was observed in growth performance between the groups (P>0.05). MCV increased significantly in nettle group compared to control group after 60 days (P<0.05). Lymphocyte increased in nettle and garlic groups compared to control group after 20 days (P<0.05). In conclusion, it seems that herbal diet can improve hematological parameters and immunocompetent cell activity in this species.
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