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Study of the effects of canola bioactive peptides, prebiotics and probiotics on growth indices, blood biochemical indices and intestinal bacterial population of Caspian Sea salmon (Salmo trutta caspius kessler)
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Abdollah Mohamadjafari   , Ali Taheri Mirqaed2 * , Morteza Yousefi , Hossein ali Ebrahimzadeh mousavi , Seyyed Morteza Hosseini |
| Faculty of Veterinary Medicine, University of Tehran |
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Abstract: |
The aim of this study was to investigate the effect of canola bioactive peptides, prebiotics and probiotics on growth, blood biochemical and intestinal bacterial population indices of Caspian Sea salmon. 300 Caspian Sea salmon with an average initial weight of 10 g were allocated to each fiberglass tank in a completely randomized design with 5 treatments, 3 replications and 20 fish. The fish were fed with control treatment, 500 mg prebiotic, 1 g probiotic, 500 mg and 1 g bioactive peptides per kg of feed for 56 days. The results of the experiment showed that the fish fed with canola bioactive peptides treatment had significantly better final weight, feed conversion ratio and survival rate than other treatments (p<0.05). Also, in fish fed with canola bioactive peptides treatment, the concentration of immunoglobulins A and M and blood cortisol increased and decreased, respectively, compared to other treatments (p<0.05). The number of Lactobacilli in the intestines of fish fed with canola bioactive peptides treatment increased compared to other treatments (p<0.05). Also, in fish fed with canola bioactive peptides, the number of intestinal coliforms decreased compared to other treatments (p<0.05). According to the results of the present study, canola bioactive peptides can be used as a functional food additive in the diet of Caspian salmon.
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| Keywords: Canola bioactive peptides, prebiotics, probiotics, intestinal lactobacilli count, immunoglobulins A and M, cortisol, Caspian Sea salmon |
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Type of Study: Research |
Subject:
Special
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