INVESTIGATION OF SURVIVAL, GROWTH AND BIOCHEMICAL BLOOD PARAMETERS OF COMMON CARP (CYPRINUS CARPIO L.) LARVAE FED BY ARTIFICIAL DIETS
|Mehdi Yousefian*, Ahmad Navazandeh, Alireza Gharaati, Saeid Mahdavi
Department of Fishery, Qaemshahr Branch, Islamic Azad University, Qaemshahr, Iran
|Corresponding Author: Mehdi Yousefian, Department of Fishery, Qaemshahr Branch, Islamic Azad University, Qaemshahr, Iran, E-mail: [email protected]|
|Received: 12 January 2013 Accepted: 19 January 2013|
|Related article at Pubmed, Scholar Google|
Culture of fish larvae is one of the most sensitive stages in production of most fish species. The most important problem is providing suitable and high quality feed which is acceptable, digestible, causes lower mortality and higher growth. In this study three diets (SFK, industrial granules feed), (SFK+ Enzyme (Lipase, Pepsin, Trypsin)) and Gammarus were examined. Each experiment carried out in triplicate with duration of 30 days. The 2400 larvae of common carp with average weight of 5±0.5mg were used for each treatment. Biometry of fishes was conducted every 6 days and data of weight, length, food conversion ratio, specific growth rate and survival were recorded. At the end of the trial, blood sampling was conducted with incision of tail peduncle for analyzing of biochemical blood parameters. Results showed that the larvae fed with SFK+Enzyme had better and significant growth than others (p<0.05). Survival of larvae was greater than 70% in all treatment and was not any significant differences between treatments (p<0.05). Biochemical blood parameters showed that larvae fed with SFK+Enzyme or gammarus had higher and significant Glucose, Albumin and TP than fish fed only SFK (p<0.05). IGM and ALP contents were higher and significant in fish fed Gammarus than others (p<0.05). ALT, AST, C3, C4, CPK and BUN did not indicate any significant differences between treatments (p>0.05).