@article{article_290723, title={SLAUGHTER CHARACTERISTICS OF BIGHEAD CARP (Hypophthalmichtys nobilis Rich.) REARED IN POLYCULTURE BASED ON NATURAL FEEDING IN THE PONDS}, journal={Journal of Aquaculture Engineering and Fisheries Research}, volume={3}, pages={51–57}, year={2017}, DOI={10.3153/JAEFR17007}, author={Nikolova, Lyudmila and Dochin, Kostadin}, keywords={Bighead carp,Polyculture,Slaughter characteristics}, abstract={<p class="MsoNormal" style="margin-top:6pt;margin-right:0cm;margin-bottom:3pt;margin-left:0cm;text-align:justify;"> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us">An experiment on slaughter characteristics of </span> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb">bighead </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us"> carp </span> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb">( </span> <i> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us">Hypophthalmichtys <b> </b> </span> </i> <i> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb">nobilis </span> </i> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb"> </span> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb">Rich.) </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us">reared in polyculture of the
same age, based on natural feeding in the ponds, was carried out at the Institute
of Fisheries and Aquaculture – Plovdiv, Bulgaria. Some of the ponds (First
Group) were not fertilized and others (Second Group) were supplemented with
manure at the rates corresponding to the standards of organic production </span> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb">. The structure of polyculture was one and
the same in all the ponds: K <sub>1 </sub> </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us">– one-year old </span> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb">common </span> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb"> </span> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb">carp </span> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb"> </span> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb">( <i>Cyprinus carpio </i>L <i>. </i>) <i> </i> </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us">– </span> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb">500 </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us">pcs </span> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb">.ha <sup>-1 </sup> ( </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us">half being scale carp and the
other half – mirror carp </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">; </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">Tp </span> <sub> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb">1 </span> </sub> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us"> – one-year old </span> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb">bighead </span> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb"> </span> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb">carp
( </span> <i> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us">Hypophthalmichtys <b> </b> </span> </i> <i> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb">nobilis </span> </i> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb"> </span> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb">Rich.) – 30 </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us">0 </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">pcs </span> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb">.ha <sup>-1 </sup>; </span> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb"> </span> <span lang="ru" style="font-size:10pt;" xml:lang="ru">А </span> <sub> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb">1 </span> </sub> <sub> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb">   </span> </sub> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us">– one-year old </span> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb"> grass </span> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb"> </span> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb">carp ( <i>Ctenopharyngodon </i> </span> <i> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb"> </span> </i> <i> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb">idella </span> </i> <i> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb"> </span> </i> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb">Val </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us">. </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">pcs </span> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb">.ha <sup>-1 </sup>. </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us"> The bighead carp
reached a live weight of </span> <span lang="en-gb" style="font-size:10pt;" xml:lang="en-gb">0.766 </span> <span lang="en-us" style="font-size:10pt;" xml:lang="en-us">kg
under the experimental conditions, the fishes in the ponds fert}, number={2}, publisher={Özkan ÖZDEN}