Effect of varying dietary protein levels on growth performance and survival of milkfish Chanos chanos fingerlings reared in brackish water pond ecosystem

Egyptian Journal of Aquatic Research

Khalid Mahmood¹  Mohammad Abdul Momin Siddique²  Nisar³  Naveed A. Abro⁴  Karim Gabol⁵  M.F.A. Abdel-Aziz⁶  Halima⁷  Saba Rizwan⁸  Muneer Hussain⁸  Muhammad Y. Laghari⁸  Habib Ul Hassan⁸ 

[1] Corresponding author at: Department of Zoology (MRCC), University of Karachi, Karachi 75270, Pakistan.;Department of Zoology (MRCC), University of Karachi, Karachi 75270, Pakistan;Fisheries, University Of Sindh, Jamshoro, Pakistan;Aquaculture Division, National Institute of Oceanography and Fisheries (NIOF), Egypt;;Department of Fresh Water Biology &Department of Oceanography, Noakhali Science and Technology University, Noakhali 3814, Bangladesh;Department of Zoology (MRCC), University of Karachi, Karachi 75270, Pakistan;Fisheries Development Board, Ministry of National Food Security and Research, Pakistan;

关键词: Growth performance;    Survival;    Protein requirements;    Brackish water;    Pond culture;   

DOI  :  

来源: DOAJ

【 摘 要 】

The present study investigated the effects of different dietary protein levels on the growth and survival of milkfish Chanos chanos for 90 days feeding trial. Milkfish with an average body weight of 10.81 ± 0.07 g were collected from the coastal zone using a manual dragnet. The study tested four diets, 10% (T1), 15% (T2), 30% (T3) and 38% (T4) of proteins containing feed with triplicates. These diets were offered to the milkfish juveniles in triplicate earthen ponds (1.5 ha). Juveniles were stocked at 10,000 ind./1.5 ha, and initially feeding rate of 10% biomass per day. The feeding rate adjusted according to fish biomass on a weekly basis. The present results showed that fishes fed 30% of proteins-containing feed have the highest weight gain (WG), specific growth rate (SGR), average daily weight gain (ADWG), survival, and the best feed conversion ratio (FCR) compared to the other treatments. The present study suggested that 30% crude protein is the optimum level for the best growth performance and for obtaining a high yield of milkfish C. chanos reared in the brackish water ponds.

【 授权许可】

Unknown