The Effects of Some Phytobiotics on Biochemical Composition of Oreochromis Niloticus Meat Reared in a Recirculating Aquaculture System

Alina Antache, Cristea Victor, Grecu Iulia, Dediu Lorena, Mocanu (Cretu) Mirela, Ion (Placinta) Sandita, Petrea Stefan Mihai

Abstract


The purpose of this experiment is the evaluation of biochemical composition of Nile tilapia meat by administrating  several phytobiotics in feed. Oreochromis niloticus, with an initial average weight of 125.41±34.33 g/exemplar, were reared, during six weeks in a recirculating aquaculture system. The phytobiotics from this experiment were administered in feed in a concentration of 1%/kg feed and consist in: thyme (Thymus vulgaris), fenugreek (Trigonela foenum graecum), neem (Azadirachta indica). Thus, the experimental variants were: V1-control, V2-thyme, V3-fenugreek and V4-neem. Fish were fed with SOPROFISH pelleted feed with 38% crude protein and 7% crude fat. During the experiment, the physico-chemical parameters of technological water were situated in normal range for optimal growth. At the end of the experiment, significant differences (p<0.05) were recorded between the experimental variants, regarding to moisture, protein content, fat content and dry matter; unsignificant differences were recorded regarding the percentage of ash (p>0.05; p=0.68). The highest value of moisture (87.25%) was registered in V2; the lowest value of fat content (0.05%) was recorded in V4 and the lowest protein content (10.79%) in V2. In conclusion, thyme, fenugreek and neem administration, in concentration of 1%/kg feed, influenced significantly the biochemical composition of Oreochromis niloticus.


Keywords


biochemical composition of meat; Oreochromis niloticus; phytobiotics; recirculating aquaculture system

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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
Bioengineering Faculty of Animal Resources
300645, Timişoara, Calea Aradului 119, Romania

E-mail: spasb [at] animalsci-tm.ro
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