EFFECT OF SAVORY EXTRACT SUPPLEMENTATION ON SOME PRODUCTIVE TRAITS AND ECONOMIC EFFICIENCY OF COMMON CARP (Cyprinus carpio L.)
The purpose of this study is to evaluate the effect of a dietary savory extract supplement on the survival rate, growth performance, feed conversion ratio and economic efficiency of common carp (Cyprinus carpio L.) reared in a recirculation system. Thirty-two carps were allotted into two experimental variants, each of them comprising two replications with 8 fish in a group. The average initial live weight of fish from both replications from the control group (CG) and experimental group (EG) was 866.56±113.99 g and 866.81±119.10 g, respectively (p>0.05). They were kept in concrete tanks with efficient water volume of 0.8 m3 , elements of the recirculation system. Carps were fed pelleted carp feed with 25% crude protein, produced with pellet size of 6 mm. The feed of fish from the EG was supplemented with 1% powdered savory extract, after lubricating the pellets with 5 ml sunflower oil per 100 g feed. Control carp received the same amount of sunflower oil-lubricated feed. The daily ration of fish from both replications was 1.8% of their live weight. The experiment duration was 45 days. Survival rates during the experiment showed 100% survival in carps, supplemented with 1% savory extract as well as in control fish. The average individual weight gain of carps from the two EG replications (supplemented with 1% savory extract) was 154.63±28.39 g, which was higher than that of controls by 57.18% (Table 3), as the differences were statistically significant (p
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- ISSN: 2618-6365
- Yayın Aralığı: Yılda 4 Sayı
- Başlangıç: 2018
- Yayıncı: ScientificWebJournals (SWJ) Özkan Özden
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