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Publication
 
FEED Business Worldwide - May, 2012
 
Effect of Sangrovit® on the Growth and Performance of Sea Bass (Dicentrarchus labrax L., 1758)
 
by Dr. Ali Y. KORKUT and Dr. Aysun KOP, EU Faculty of Fisheries, Aquaculture Department, Izmir, Turkey
 
 
ABSTRACT
 
In this experiment, 585 juvenile sea bass (Dicentrarchus labrax L., 1758) (average initial weight = 17.03±0,43 g) were fed diets containing the active ingredients of Sangrovit® -the Benzo[c]phenanthridine and Protopin alkaloids (QBA/PA) - which have been shown to improve feed intake, increase the secretion of digestive enzymes, enhance feed digestibility and availability, improve feed conversion and liver function, and provide antibacterial and anti-inflammatory benefits. In this study, two levels of Sangrovit® were added to a commercial sea bass fry feed, which also served as the control diet (Group A: 0 ppm Sangrovit®) Group B received 500 g Sangrovit® premix (1:10 dilution) per ton of commercial feed, which was equivalent to 50 ppm Sangrovit®. Group C received 1000 g Sangrovit® premix (1:10 dilution) per ton of commercial feed, which provided 100 ppm of Sangrovit®. Nine (9) cylindrical-conical polyester tanks (300 litre capacity) were used in this study. Sixty five (65) fish were placed in each tank, and there were three (3) replicates per treatment. The trial was conducted over ninety (90) days, and all fish were fed at the same rate for the duration of the experiment. Growth performance, feed conversion ratio (FCR), specific growth rate (SGR), condition factor (CF), hepatosomatic index (HSI), and vicserosomatic index (VSI) were all recorded. ANOVA was used to assess variance within and among treatment groups and repetitions, and differences between initial and final measured values were assessed using the t-test. Due to a lack of homogeneity among groups, data were analyzed using the Kruskal-Willis test. Final average body weights for Groups A, B and C were 49.907±1.28 g, 55.243±1.03 g, and 62.217±1.35 g, respectively. Group A and Group B final average body weights were not significantly different (p>0.05), but the final average body weight of the fish in Group C was significantly greater (p<0.05) than was the final average body weight of fish in Group A.
 
Key Words: Sea bass, Dicentrarchus labrax, Sangrovit®, feeding, growth performance
 
 
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