Preliminary Results about Growth Performance and Food Conversion Ratio of Acipenser stellatus juvenils, Fed with Different Dietary Protein Levels

Maria Desimira Dicu, Victor Cristea, Lorena Dediu, Mirela Mocanu (Creţu), Ştefan Mihai Petrea, Adina Popescu

Abstract


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.

Keywords


Acipenser stellatus; FCR; PER; protein level

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Scientific Papers Animal Science and Biotechnologies publish open access articles under the terms of the Creative Commons Attribution 4.0 Licence (read full legal code).


LUCRARI STIINTIFICE ZOOTEHNIE SI BIOTEHNOLOGII (SCIENTIFIC PAPERS ANIMAL SCIENCE AND BIOTECHNOLOGIES)

ISSN print 1841 - 9364
ISSN online 2344 - 4576
ISSN-L  1841 - 9364
(former ISSN 1221-5287, E-ISSN 1841-9364)

PUBLISHER: AGROPRINT Timisoara, Romania
PAPER ACCESS: Full text articles available for free
FREQUENCY: Semiannual
PUBLICATION LANGUAGE: English
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Banat´s University of Agricultural Sciences and Veterinary Medicine "King Michael I of Romania" from Timisoara
Faculty of Animal Science and Biotechnologies
300645, Timişoara, Calea Aradului 119, Romania

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