Journal
AQUACULTURE RESEARCH
Volume 47, Issue 9, Pages 2874-2880Publisher
WILEY
DOI: 10.1111/are.12737
Keywords
growth; stress; blood; Sangrovit; Caspian roach
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This study was carried out to show the effects of Sangrovit on growth, blood biochemical parameters, survival and resistance to salinity stress in the Caspian roach. Fish (1.24 +/- 0.13g) were divided into four groups fed diets containing Sangrovit at different levels: 0 (control), 0.05, 0.1 and 0.15% for 45days. The results showed that there was a significant increase in final weight, weight gain and specific growth rate in those fish fed 0.15% Sangrovit diets compared with the control (P<0.05). Food conversion rate of fish fed 0.05% Sangrovit diet was significantly (P<0.05) lower than the control group. Condition factor was not significantly affected by Sangrovit dosage (P>0.05). The blood glucose and cholesterol levels were significantly lower in treated groups compared with the control (P<0.05). The highest total protein was obtained in the 0.15% group and it was significantly higher than in all other groups (P<0.05). Challenges were carried out after 45days of feeding, to determine the effect of Sangrovit on resistance to salinity stress. Blood samples were obtained four times after challenge (day 1, 3, 5 and 7) for evaluate haematocrit levels. On the first day, haematocrit increased significantly in all groups compared to day 5 and 7 (P<0.05). The haematocrit levels decreased gradually in all groups from the third day. Before andafter stress, no differences were observed for survival rate among the experimental diets (P>0.05). These results indicate that the inclusion of 0.15% Sangrovit in the diet of the Caspian roach enhances feed efficiency, fish growth and blood biochemical parameters.
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