Biological and economic performance of Nile tilapia (Oreochromis niloticus) in two conventional and limited water exchange systems
| Autor: | Mohammad Hossein Khanjani, Morteza Alizadeh |
|---|---|
| Jazyk: | perština |
| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | بومشناسی آبزیان, Vol 11, Iss 3, Pp 12-21 (2021) |
| Druh dokumentu: | article |
| ISSN: | 2322-2751 2980-9355 |
| Popis: | The use of modern systems in the cultivation of economical fish such as tilapia is important. In the present study, the effect of conventional and limited water exchange systems on water quality, growth, nutritional performance, and the economic aspect of farming systems were investigated in Nile tilapia. For this purpose, juvenile tilapia with an average weight of 1.79 g were reared in fiberglass tanks with a volume of 170 liters of water at a density of one fish per liter of water for 5 weeks. Two treatments were considered in three replications. In the system with limited water exchange, molasses carbonaceous material was added to develop biofloc and maintain optimal water quality. The results showed a significant difference between water quality parameters in the two cultivation systems (P |
| Databáze: | Directory of Open Access Journals |
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