Ibrahim, A., Abouelella, S., Adam, H., Hassan, N., Abdallah, R. (2021). Effect of Azolla pinnata on growth performance and survival rate of fingerlings of grass carp fish Ctenopharyngodon idellus (Valenciennes, 1844). Aswan University Journal of Environmental Studies, 2(4), 249-258. doi: 10.21608/aujes.2021.91897.1038
Atef Ibrahim; Salwa Abouelella; Hussein Adam; Naglaa Hassan; Ragaa Abdallah. "Effect of Azolla pinnata on growth performance and survival rate of fingerlings of grass carp fish Ctenopharyngodon idellus (Valenciennes, 1844)". Aswan University Journal of Environmental Studies, 2, 4, 2021, 249-258. doi: 10.21608/aujes.2021.91897.1038
Ibrahim, A., Abouelella, S., Adam, H., Hassan, N., Abdallah, R. (2021). 'Effect of Azolla pinnata on growth performance and survival rate of fingerlings of grass carp fish Ctenopharyngodon idellus (Valenciennes, 1844)', Aswan University Journal of Environmental Studies, 2(4), pp. 249-258. doi: 10.21608/aujes.2021.91897.1038
Ibrahim, A., Abouelella, S., Adam, H., Hassan, N., Abdallah, R. Effect of Azolla pinnata on growth performance and survival rate of fingerlings of grass carp fish Ctenopharyngodon idellus (Valenciennes, 1844). Aswan University Journal of Environmental Studies, 2021; 2(4): 249-258. doi: 10.21608/aujes.2021.91897.1038
Effect of Azolla pinnata on growth performance and survival rate of fingerlings of grass carp fish Ctenopharyngodon idellus (Valenciennes, 1844)
1Department of Zoology, Faculty of Science, Aswan University, Egypt.
2Cannel Maintenance Research Institute, National Water Research center, Delta Barrage P.O. Box 13621, Egypt
3Department of fish biology, Faculty of fish and fisheries technology, Aswan University, Egypt.
4Cannel Maintenance Research Institute, National Water Research centre
5Aswan University
Abstract
Grass carp fishes were caught approximately in the same size (initial weight: 10 grams) from earthen ponds and maintained in the laboratory in 15 glass aquaria (35 cm x 70 cm x 40 cm) containing 98L of filtered Nile water in 5 treatments (3 replicates per treatment) control, T1, T2, T3, T4 with stocking densities (10 fish/aquarium). The fish diet provided was a commercial floating pellets diet containing (30% protein, 6% lipids, fibers 4.5%, total energy not less than 4100-kilo calories / Kg ) and Azolla plant which was cultivated. Fish fed at 5% of their body weight in the control group and replaced with Azolla plant in the T1, T2, T3, T4 with percentages 25,50,75,100 % respectively. The current study showed that replacing the artificial feed with Azolla pinnata positively enhanced the growth performance, haemato-biochemical values, of grass carp. These results indicated that Azolla pinnata with a rate of 25-50% can be considered a beneficial dietary supplement for grass carp.
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