Volume 8, Issue 2 (Autumn 2018)                   J. Aqua. Eco 2018, 8(2): 51-60 | Back to browse issues page

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Akbari Nargesi E, Falahatkar B, Sajjadi M. The effect of probiotic on growth performance and hematological indices in female rainbow trout (Oncorhynchus mykiss) broodstock. J. Aqua. Eco 2018; 8 (2) :51-60
URL: http://jae.hormozgan.ac.ir/article-1-567-en.html
The effect of probiotic on growth performance and hematological indices in female rainbow trout (Oncorhynchus mykiss) broodstock
Erfan Akbari Nargesi , Bahram Falahatkar * , Mirmasoud Sajjadi
Abstract:   (3790 Views)
This experiment was carried out to determine the effect of probiotic on growth performance and hematological indices in female rainbow trout (Oncorhynchus mykiss) broodstock. For this purpose, broodstock with an average initial weight of 2267.41 ± 54.86 g (mean ± S.E.M) were fed for 8 weeks with diets containing 0, 0.5, 1 and 2 g.kg-1 Bio-Aqua probiotic. At the end of the experimental period, growth parameters and blood parameters were evaluated. According to the results, a significant difference was observed in average final weight between 2 g.kg-1 treatment and control group (P<0.05). Moreover, the specific growth rate and body weight increase in 2 g.kg-1 treatment showed significant differences compared to control and 0.5 g.kg-1 treatments (P<0.05). A significant difference in feed conversion ratio was observed among 2 g.kg-1 treatment and other treatments (P<0.05). The condition factor was not significantly different among treatments (P>0.05). Furthermore, no significant differences were observed in hematological indices among the treatments (P>0.05). The results of present study demonstrated a considerable ability of Bio-Aqua probiotic to influence on growth parameters in rainbow trout broodstock. Accordingly, the Bio-Aqua probiotic in 2 g.kg-1 was suggested as the best level to use in feed of rainbow trout broodstock.

Keywords: Salmonids, Probiotic bacteria, Bio-Aqua, Nutrition, Hematology
Full-Text [PDF 564 kb]   (925 Downloads)    
Type of Study: Research | Subject: Special
Published: 2018/10/15
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