Preliminary Results about Growth Performance and Food Conversion Ratio of Acipenser stellatus juvenils, Fed with Different Dietary Protein Levels
| Autor: | Maria Desimira Dicu, Victor Cristea, Lorena Dediu, Mirela (Creţu) Mocanu, Ştefan Mihai Petrea, Adina Popescu |
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| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Scientific Papers Animal Science and Biotechnologies, Vol 45, Iss 2, Pp 37-37 (2023) |
| Druh dokumentu: | article |
| ISSN: | 1841-9364 2344-4576 |
| Popis: | The main purpose of this study is to evaluate the effects of different dietary protein levels on Acipenser stellatus growth performance. Researches were conducted between 4 th November-3rd December 2011, in the recirculating system of Aquaculture, Environmental Science and Cadastre Department, University of Galati. A number of 60 fish with an average weight of 11.5±0.58 g were randomly stocked into four rearing units, with same stocking densities. Two experimental variants with different dietary protein levels, 64% (V1) respectively 41% (V2), were applied in duplicate. At the end of the experiment, the specific growth rate (SGR), calculated as mean value of both repetitions for each variant, was 4,64%/day at V1 and 4,63%/day at V2. Protein efficiency ratio PER (g/g) registered a better value at V2 (2.55 g/g), comparing to V1 (1.62 g/g). Regarding feed conversion ratio, almost identical values were observed in case of both experimental variants: 0,96 at V1 and 0.97 at V2. The final results of the experiment showed that while PER was significantly influenced by dietary protein levels, the rest of growing indicators had a very limited variation scale. |
| Databáze: | Directory of Open Access Journals |
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