scholarly journals Effect of nutmeg extract supplementation on some productive traits and economic efficiency of common carp (Cyprinus carpio L.) cultivated in recirculation system

2018 ◽  
Vol 10 (1) ◽  
pp. 54-56 ◽  
Author(s):  
G. Zhelyazkov ◽  
S. Stoyanova ◽  
I. Sirakov ◽  
K. Velichkova ◽  
Y. Staykov
Keyword(s):  
Common Carp ◽  
Economic Efficiency ◽  
Cyprinus Carpio ◽  
Common Carp Cyprinus Carpio ◽  
Recirculation System ◽  
Carp Cyprinus Carpio ◽  
Productive Traits

scholarly journals EFFECT OF SAVORY EXTRACT SUPPLEMENTATION ON SOME PRODUCTIVE TRAITS AND ECONOMIC EFFICIENCY OF COMMON CARP (Cyprinus carpio L.)

2018 ◽  
pp. 110-114
Author(s):  
Stefka Stoyanova ◽  
Georgi Zhelyazkov ◽  
Katya Velichkova ◽  
Ivaylo Sirakov ◽  
Yordan Staykov
Keyword(s):  
Common Carp ◽  
Economic Efficiency ◽  
Cyprinus Carpio ◽  
Common Carp Cyprinus Carpio ◽  
Carp Cyprinus Carpio ◽  
Productive Traits

scholarly journals INFLUENCE OF DIETARY CINNAMOMUM VERUM EXTRACT ON THE GROWTH AND ECONOMIC EFFICACY OF COMMON CARP /CYPRINUS CARPIO L. /, REARED IN A RECIRCULATION SYSTEM

2018 ◽  
Vol 16 (4) ◽  
pp. 307-312
Author(s):  
S. Stoyanova ◽  
G. Zhelyazkov ◽  
I. Sirakov ◽  
K. Velichkova ◽  
Y. Staykov
Keyword(s):  
Common Carp ◽  
Economic Efficiency ◽  
Cyprinus Carpio ◽  
Production Efficiency ◽  
Feed Additives ◽  
Average Weight ◽  
Common Carp Cyprinus Carpio ◽  
Recirculation System ◽  
Carp Cyprinus Carpio ◽  
Experimental Group

The use of herbs as feed additives for fish showed a stimulating effect on growth, feed assimilation and increase its digestibility. The aim of research was to assess the outcome of feeding dietary cinnamon extract on the survival rate, growth performance, feed conversion and production efficiency of common carp (Cyprinus carpio L.), farmed in recirculation system. Thirty-two carps were distributed in two experimental variants, with two replicates of eight fish per group each. The average weight of the carps from the control and experimental group (CG) and EG) was 866.56 ± 113.99 g and 869.38 ± 96.88 g, respectively (p>0.05). The average individual carp grown EG was by 18.98% higher vs CG fish, with no significant differences between groups (p> 0.05). The economic efficiency of feed with extract of cinnamon in the experimental group had better coefficient of economic efficiency 2.71, which is lower by 4.61% compared to the coefficient of the controls

scholarly journals RITME HARIAN KONSUMSI OKSIGEN INDUK IKAN MAS Cyprinus carpio DENGAN FOTOPERIODE KONTINYU 24 JAM

2018 ◽  
Vol 8 (1) ◽  
pp. 1
Author(s):  
Vitas Atmadi Prakoso ◽  
Jun Hyung Ryu ◽  
Young Jin Chang
Keyword(s):  
Oxygen Consumption ◽  
Common Carp ◽  
Cyprinus Carpio ◽  
Average Value ◽  
Metabolism Rate ◽  
Common Carp Cyprinus Carpio ◽  
Significant Difference ◽  
Recirculation System ◽  
Carp Cyprinus Carpio ◽  
Photoperiod Manipulation

DIEL RHYTHM OF OXYGEN CONSUMPTION ON ADULT COMMON CARP Cyprinus carpio WITH CONTINUOUS 24-HOURS PHOTOPERIOD         Some external factors could affect the metabolism rate of fish. One of them is photoperiod which related to the length of day and night in a day. Based on that correlation, the experiment was conducted to determine the effects of photoperiod manipulation to the diel rhythm of oxygen consumption on adult common carp Cyprinus carpio. The experimental fish (total length: 29.2 ± 0.4 cm, total weight: 1295.8 ± 56.1 g) was observed in respirometer which connected in a closed recirculation system. The study was conducted with three replications with one individu in each replication. The water temperature and closed recirculation system was maintained at 20.2 ± 0.3oC. The photoperiod was set to 24 hours light : 0 hours of dark by using fluorescent lamp which lit continuously. The results showed that during 24 hours observation at 24 hours light: 0 hours dark condition, adult common carp has an oxygen consumption range of 24.5 - 29.1 mg O2/kg/h at 20oC. The average value of the lowest oxygen consumption occurred at 02.00 and 17.00 (24.5 ± 1.9 mg O2/kg/h). Meanwhile, the highest oxygen consumption value was recorded at 06.00 (29.1 ± 1.7 mg O2/kg/h). Based on data of oxygen consumption obtained from this study, no significant difference found between oxygen consumption of adult common carp during day and night with photoperiod manipulation. The activity and metabolism of adult common carp have changed with the change of photoperiod.Keywords: Common carp, Cyprinus carpio, oxygen consumption, photoperiod. ABSTRAK          Beberapa faktor eksternal dapat mempengaruhi laju metabolisme pada ikan. Salah satu diantaranya adalah fotoperiode yang berkaitan dengan lamanya siang dan malam dalam satu hari. Berdasarkan korelasi tersebut, maka dilakukan penelitian untuk mengetahui pengaruh manipulasi fotoperiode terhadap ritme harian konsumsi oksigen pada induk ikan mas Cyprinus carpio. Ikan uji (panjang total 29,2 ± 0,4 cm; bobot total 1295,8 ± 56,1 g) diamati di dalam respirometer yang terhubung dalam sistem resirkulasi tertutup. Penelitian dilakukan dengan tiga ulangan dengan masing-masing jumlah induk ikan sebanyak satu ekor. Suhu air dan sistem resirkulasi tertutup diatur pada suhu 20,2 ± 0,3oC. Fotoperiode diatur pada kondisi 24 jam terang : 0 jam gelap dengan menggunakan lampu fluorescent yang dinyalakan secara kontinyu. Hasil penelitian menunjukkan bahwa selama pengamatan 24 jam kondisi 24 jam terang : 0 jam gelap, induk ikan mas memiliki kisaran konsumsi oksigen sebesar 24,5 - 29,1 mg O2/kg/jam di 20oC. Nilai rata-rata konsumsi oksigen terendah terjadi pada jam 02.00 dan 17.00, yaitu 24,5 ± 1,9 mg O2/kg/jam. Sedangkan nilai konsumsi oksigen tertinggi tercatat pada jam 06.00, yaitu 29,1 ± 1,7 mg O2/kg/jam. Berdasarkan data konsumsi oksigen yang diperoleh dari penelitian ini, tidak ditemukan adanya perbedaan nyata antara konsumsi oksigen induk ikan mas saat siang dan malam hari dengan adanya manipulasi fotoperiode. Aktivitas dan metabolisme induk ikan mas mengalami perubahan dengan adanya perubahan fotoperiode.Kata kunci: Ikan mas, Cyprinus carpio, konsumsi oksigen, fotoperiode.

scholarly journals Technological aspects of intensive technologies using in the commercial cultivation of common carp (Cyprinus carpio (Linnaeus, 1758))

2021 ◽  
pp. 5-21
Author(s):  
O. Honcharova ◽  
◽  
P. Kutishchev ◽  
Ye. Кorzhov ◽  
Yu. Kovalov ◽  
...  
Keyword(s):  
Common Carp ◽  
Functional State ◽  
Cyprinus Carpio ◽  
Research Laboratory ◽  
Gas Discharge ◽  
Metabolic Processes ◽  
Common Carp Cyprinus Carpio ◽  
State Education ◽  
Recirculation System ◽  
Carp Cyprinus Carpio

Purpose. To study the effect of the feed factor on the functional state of the carp body (Cyprinus carpio L.) under the conditions of growing in a model recirculation system of complex purpose with the use of intensive technologies. Methodology. The experimental part of the study was performed at the laboratory of the Scientific and Research Lab “Aquaculture Perspectives”, Scientific and Research Laboratory of “Physiological and Biochemical Studies named after S. Pentelyuk”, Scientific and Research Laboratory of Ecological and Chemical Analysis and Water Monitoring of the State Education Institution “Kherson State Agrarian and Economical University” and at the laboratory of the “Kherson Production and Experimental Hatchery of Ordinary Fish Breeding”. Carp growing was carried out in the model installation of tanks recirculation type with using intensive technologies, alternative energy sources, method of gas-discharge visualization. During the experiment following was performed: clinical examination of fish, control of growth rate and weight gain, survival rate, physiological state and morpho-functional parameters of blood in accordance with conventional methods. Findings. The general functional state of the organism of the common carp Cyprinus carpio L. in ontogenesis was investigated against the background of activation of adaptive-compensatory mechanisms, metabolic processes under the influence of the food factor under rearing conditions in a model system for complex purposes in aquaculture. Positive results of analysis of morpho-functional, biochemical parameters of carp blood were obtained when feeding with a feed mixture from natural fodder and biologically active substances. The degree of influence of the fodder factor as a corrector of metabolic processes in the carp organism when growing the marketable mass has been studied. Originality. The conducted analysis of gas-discharge visualization of static GDV-gram parameters of optoelectronic emission of young-of-the-year carp showed differences in functional activity in the organism of fish from the experimental group in relation to the control group, which was also substantiated and argumentative by the parameters of carp blood and development rate. Practical value. The proposed method of feeding carp in the recirculation system contributes to the correction of metabolic processes in their body, which makes it possible to reduce the cost through the use of natural feed, the cultivation of which is introduced into the recirculation system, the formation of a mixture of our own production, using the GDV-method diagnostics of objects and energy-saving elements in technological map. Key words: carp, vitality, feeding factor, fish stocking, modular system, intensive technology.

First report of carp edema virus in the mortality of wild common carp Cyprinus carpio in North America

2018 ◽  
Vol 131 (3) ◽  
pp. 177-186 ◽  
Author(s):  
J Lovy ◽  
SE Friend ◽  
L Al-Hussinee ◽  
TB Waltzek
Keyword(s):  
North America ◽  
Common Carp ◽  
Cyprinus Carpio ◽  
First Report ◽  
Common Carp Cyprinus Carpio ◽  
Carp Cyprinus Carpio
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