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 | ||
| Article 3, Volume 2, Issue 4, December 2021, Pages 249-258 PDF (455.34 K) | ||
| Document Type: Original Research | ||
| DOI: 10.21608/aujes.2021.91897.1038 | ||
| Authors | ||
| Atef Ibrahim1; Salwa Abouelella2; Hussein Adam3; Naglaa Hassan4; Ragaa Abdallah* 5 | ||
| 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. | ||
| Keywords | ||
| Grass carp; Azolla pinnata; growth performance | ||
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