scholarly journals Utilization of biofloc meal as a feed ingredient for Nile tilapia and common carp

2018 ◽  
Vol 17 (1) ◽  
pp. 9 ◽  
Author(s):  
Julie Ekasari ◽  
Hilda Kemala Pasha ◽  
Nur Bambang Priyoutomo
Keyword(s):  
Growth Rate ◽  
Common Carp ◽  
Fish Species ◽  
Cyprinus Carpio ◽  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Control Diet ◽  
Control Treatment ◽  
Lower Growth ◽  
Similar Treatment

<p align="center"><strong>ABSTRACT</strong></p><p>This study was aimed to evaluate the utilisation of biofloc meal collected from biofloc-based catfish intensive culture as a mix ingredient for Nile tilapia <em>Oreochromis niloticus</em> and common carp <em>Cyprinus carpio </em>diet. A control diet containing 29.03% crude protein was used in this experiment. Experimental diet was made by mixing 30% biofloc waste meal with the control diet and repelleted after the addition of 2% of binder. To determine the experimental feed digestibility, 0.5% of Cr<sub>2</sub>O<sub>3 </sub>was added as a marker for digestibility. The feed was offered to satiation at a frequency of 3 times a day for 28 days of experimentation. Nile tilapia and common carp juveniles with an initial average body weight of 11.72±0.04 g and 8.81±0.04 g, respectively, were used as the experimental animals. Each fish species were randomly stocked with a density of 10 fish/aquarium (30´45´30 cm<sup>3</sup>). The results showed that dry matter digestibility of diets with 30 % biofloc waste meal in both fish species were significantly lower than those of the controls (P&lt;0.05). However, protein, lipid and phosphorus digestibilities of diets containing biofloc waste meal were significantly higher than those of the controls (P&lt;0.05). Feeding with biofloc waste meal mixed feed to tilapia resulted in lower growth rate compared to that to fed control feed. On the other hand, similar treatment to common carp resulted in comparable growth rate to the control treatment.</p><p>Keywords: biofloc meal, digestibility, growth performance, tilapia, common carp</p><p> </p><p class="Default" align="center"><strong>ABSTRAK</strong></p><p class="Default"><strong>                                                                                      </strong></p><p class="Paragraf">Penelitian ini bertujuan untuk mengevaluasi pemanfaatan tepung bioflok yang dikumpulkan dari limbah pemeliharaan ikan lele intensif berbasis teknologi bioflok sebagai campuran pakan untuk ikan nila <em>Oreochromis niloticus</em> dan ikan mas <em>Cyprinus carpio</em>. Pakan kontrol yang digunakan adalah pakan komersial dengan kadar protein 29,03%. Pembuatan pakan uji dilakukan dengan mencampurkan tepung limbah bioflok (30%) dengan pakan kontrol (67,5%) dan dibentuk pelet kembali setelah dilakukan penambahan <em>binder</em> sebanyak 2% dan Cr<sub>2</sub>O<sub>3 </sub>sebanyak 0,5% sebagai penanda untuk menganalisis kecernaan pakan dengan tepung limbah bioflok. Pakan diberikan secara <em>at satiation </em>dengan frekuensi pemberian pakan 3 kali/hari selama 28 hari pemeliharaan. Bobot rata-rata ikan awal adalah 11,72±0,04 g untuk ikan nila, dan 8,81±0,04 g untuk ikan mas dengan kepadatan awal masing-masing 10 ekor/akuarium (30´45´30 cm<sup>3</sup>). Hasil penelitian ini menunjukkan bahwa nilai kecernaan total pakan dengan tepung limbah bioflok baik pada ikan nila maupun ikan mas lebih rendah daripada pakan kontrol (P&lt;0,05). Namun demikian, kecernaan protein, lemak, dan fosfor pakan dengan campuran tepung limbah bioflok lebih tinggi daripada kontrol (P&lt;0,05). Pemberian tepung limbah bioflok sebanyak 30% sebagai campuran pakan menghasilkan laju pertumbuhan spesifik ikan nila yang lebih rendah (P&lt;0,05), sedangkan perlakuan yang sama pada ikan mas memberikan laju pertumbuhan spesifik yang tidak berbeda nyata dengan kontrol (P&gt;0,05).</p><p class="Paragraf"> </p><p class="Paragraf">Kata kunci: tepung limbah bioflok, kecernaan, kinerja pertumbuhan, ikan nila, ikan mas</p>

scholarly journals Effects of a Trans-Galactooligosaccharide on Minerals Content of Common Carp (Cyprinus carpio L.) Tissues

2021 ◽  
Author(s):  
Ewa Ziółkowska ◽  
Joanna Bogucka ◽  
Jan Mazurkiewicz ◽  
Mateusz Rawski ◽  
Szymon Różański ◽  
...  
Keyword(s):  
Common Carp ◽  
Cyprinus Carpio ◽  
Control Diet ◽  
Colorimetric Method ◽  
Bifidobacterium Bifidum ◽  
Feed Additives ◽  
Control Treatment ◽  
Control Group ◽  
Whole Cells ◽  
Freeze Dried

AbstractCommon carp (Cyprinus carpio L.) is a dominant fish species in aquaculture, and as it is a stomachless species, absorption and digestion of nutrients take place in the intestine. The aim of the study was to evaluate the effects of a prebiotic on the content of selected minerals found in the meat, gills, and skeleton of common carp. The research applied trans-galactooligosaccharide (GOS) prebiotic produced by enzymatic transgalactosylation of milk lactose by whole cells of Bifidobacterium bifidum. The following diets have been applied: control diet without feed additives (C), diet 2 (B1) with 1% of GOS, and diet 3 (B2) with 2% of GOS. In the freeze-dried samples, concentrations of the analyzed metals were determined using atomic absorption spectroscopy (AAS). The content of phosphorus was determined using colorimetric method. The analyses confirmed that the highest level of Mg was detected in the skeleton of fish fed with 1% GOS (2.51 g kg−1) and was significantly higher compared the control treatment (2.11 g kg−1) (P < 0.05). Zn content in fish meat fed with 1% GOS (35.41 mg kg−1) was significantly higher (P < 0.05) than in the control group (24.59 mg kg−1). The tissue that accumulated the greatest amount of Zn was the gills. GOS had a positive effect on Fe accumulation in the meat, gills, and skeleton. It has been concluded that supplementation of feed with 2% GOS significantly influenced the positive correlations between Mg and P in the meat and skeleton, Fe–Ca correlation in gills, and Fe–Zn correlation in the skeleton.

scholarly journals Invasive potential of common carp (Cyprinus carpio) and Nile tilapia (Oreochromis niloticus) in American freshwater systems

2006 ◽  
Vol 63 (9) ◽  
pp. 1903-1910 ◽  
Author(s):  
Luis Zambrano ◽  
Enrique Martínez-Meyer ◽  
Naercio Menezes ◽  
A Townsend Peterson
Keyword(s):  
Common Carp ◽  
Cyprinus Carpio ◽  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Ecological Niche Modeling ◽  
High Mountain ◽  
Invasive Potential ◽  
Common Carp Cyprinus Carpio ◽  
Nile Tilapia Oreochromis Niloticus ◽  
Carp Cyprinus Carpio

Nonnative fish introductions disrupt ecosystem processes and can drive native species to local extinction. Two of the most widespread, introduced species are the common carp (Cyprinus carpio) from Eurasia and the Nile tilapia (Oreochromis niloticus) from Africa. In North and South America, these introductions stem from aquaculture facilities, as well as historical introductions for recreational angling. An emergent field of ecological niche modeling provides robust predictions of the geographic potential of alien species to better understand their capacity to become established at broad scales. We used this modeling approach to produce spatially explicit predictions of the invasive potential of common carp and Nile tilapia in the Americas. Model predictions were tested using occurrence data for established populations in their native area and in the Americas. Results indicated that predictive power of niche models was high. Distributional potential of common carp in the Americas covers most temperate regions and high mountain tropical aquatic systems, whereas that of Nile tilapia is focused in the tropics and coast areas. The consequences of the potential establishment of these exotic species can be profound on native aquatic faunas, particularly on highly diverse regions such as the Amazon Basin and central Mexico.

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