@article{article_398129, title={EFFECT OF SAVORY EXTRACT SUPPLEMENTATION ON SOME PRODUCTIVE TRAITS AND ECONOMIC EFFICIENCY OF COMMON CARP (Cyprinus carpio L.)}, journal={Aquatic Research}, volume={1}, pages={110–114}, year={2018}, DOI={10.3153/AR18012}, url={https://izlik.org/JA57NP47PU}, author={Stoyanova, Stefka and Zhelyazkov, Georgi and Velıchkova, Katya and Sırakov, İvaylo and Staykov, Yordan}, keywords={Common carp,Savory extract,Feed conversion ratio,Weight gain,Survival rate,Economic efficiency}, abstract={<p> </p> <p class="MsoNormal" style="margin-top:6pt;margin-right:14.75pt;margin-bottom:3pt;margin-left:14.2pt;text-align:justify;"> <span lang="en" style="font-size:10pt;" xml:lang="en">The purpose of this study is to </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us">evaluate the effect
of a dietary savory extract supplement on the survival rate, growth
performance, feed conversion ratio and economic efficiency of common carp ( <i>Cyprinus carpio </i> 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 m <sup>3 </sup>, 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 </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us"> </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us">rates during </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us"> </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us">the </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us"> </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us">experiment </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us"> </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us">showed </span> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb"> 100% </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us">survival </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us"> </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us">in </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us"> </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us">carps, </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us"> </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us">supplemented </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us"> </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us">with </span> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb"> 1% </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us">savory </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us"> </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us">extract </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us"> </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us">as </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us"> </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us">well </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us"> </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us">as </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us"> </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us">in </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us"> </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us">control </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us"> </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us">fish </span> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb">. </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us">  The </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us"> </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us">average </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us"> </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us">individual </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us"> </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us">weight </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us"> </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us">gain </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us"> </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us">of </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us"> </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us">carps </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us"> </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us">from </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us"> </span> <span lang="en-us" st}, number={3}