Cost-effectiveness, feed utilization and body composition of african sharptooth catfish (Clarias gariepinus, Burchell 1822) fingerlings fed locally formulated and commercial pelleted diets in tarpaulin tanks

2018 ◽  
Vol 26 (1) ◽  
pp. 39-52
Author(s):  
O.E. Afia ◽  
G.S. David

Cost-effectiveness, food utilization and proximate composition of Clarias gariepinus fingerlings fed locally formulated (sinking) and commercial (floating) diets in tarpaulin tanks were observed for 56 days. Ninety (90) C. gariepinus fingerlings with initial mean weight (72.99 g ± 3.09) per treatment were observed during the period with three replicates at a stocking density of 15 fish per m2. The fish were fed 5% body weight three times daily. Results showed that C. gariepinus fingerlings fed floating diet had significantly lower (p<0.05) feed conversion ratio (0.83 ± 0.03) than sinking diet (3.23 ± 0.40). Protein efficiency ratio was significantly (p<0.05) higher in fish fed commercial diet (2.69 ± 0.09) than locally formulated (0.80 ± 0.11). Specific growth rate was significantly (p<0.05) higher in floating (3.29 ± 0.07) than sinking diet (0.97 ± 0.20). Incidence cost was lower (₦1,989.65) in fish fed commercial diet than locally formulated (₦3,819.63). The profit index was higher in C. gariepinus fed floating diet (0.74) than sinking (0.19). From these findings, floating (commercial) feed is recommended for feeding C. gariepinus fingerlings since it showed better food utilization, better proximate composition of the carcass, higher profit index and consequently lower incidence cost.Keywords: Clarias gariepinus, cost-effectiveness, sinking feed, floating feed, incidence cost.

2018 ◽  
Vol 65 (1) ◽  
Author(s):  
E. Prabu ◽  
C.B.T Rajagopalsamy ◽  
B. Ahilan ◽  
Jegan Michael Andro Jeevagan ◽  
M. Renuhadevi

A 60 days indoor growth trial was conducted to study the effect of dietary supplementation of biofloc meal on growth and survival of juvenile GIFT tilapia. Four isonitrogenous and isoenergetic experimental diets (32% crude protein) were prepared using biofloc meal at different inclusion levels viz., 0 (T0), 20 (T1), 30 (T2) and 40% (T3). A commercial diet (T4) was used for comparison. The feeding trial was conducted in 15 nos. of 40 l plastic troughs in triplicate, utilising GIFT tilapias weighing an average of 2 g. During the experimental period, water quality parameters were measured and recorded daily. The mean value of water temperature, pH, dissolved oxygen, salinity, ammonia-N, nitrite-N, nitrate-N, hardness and alkalinity recorded in the experimental systems were 28.5°C, 8.1, 5.5 ppm, 4.5 ppt, 0.03 ppm, 0.07 ppm, 11 ppm, 630 ppm and 162.5 ppm respectively. Among the biofloc meal enriched diets, diet T1 with 20% biofloc yielded the best results in terms of average body weight gain, feed conversion ratio (FCR), specific growth rate (SGR), protein efficiency ratio (PER) and feed efficiency ratio (FER). The mean body weight gain recorded in T1 was 25.28±0.81 g. The results demonstrated that biofloc meal is a potential ingredient that can be incorporated in GIFT tilapia diet at 20% level for better growth performance.


2016 ◽  
Vol 5 (1) ◽  
pp. 97 ◽  
Author(s):  
B. I. Balogun ◽  
S. J. Oniye ◽  
J. Auta ◽  
C. A. M. Lakpini ◽  
F. O. Abeke

This study was conducted to evaluate the suitability of soaked <em>Bauhinia monandra</em> (Kutz) seed as alternative protein source for <em>Clarias gariepinus</em> and to determine cost of feed compounded. The proximate analysis of the diet (crude protein, crude fibre, ash, moisture content and lipid) were determined using AOAC (1980). Data for each parameter was subjected to one way analysis of variance (ANOVA) while means of various results were compared at 5% level of significance. A preliminary study was conducted to determine the best processing method that reduced anti-nutrients to the minimum level without impairing nutrients composition. Boiled, toasted and soaked seeds were used. <em>Bauhinia</em> seeds soaked for 96 hours had least concentration of anti-nutrients. The experimental diets was formulated to contain soaked <em>Bauhinia</em> seed meal (SBSM) at levels of 25%, 50% and 75% inclusion (Diets 2, 3 and 4 respectively)  with two diets acting as control (Diets 1 and 5). All diets were isonitrogenous (40% crude protein) and isocaloric (3212kcal/kg). A 12 weeks feeding trial was conducted using juveniles which were randomly distributed into 12 improvised non-recirculatory and semi-flow through indoor plastic tanks (52cm X 34cm X 33.5cm) at a stocking rate of 10 fish per tank and three (3) replicates per treatment. The experimental design was complete randomized. The fish were fed at 5% body weight, twice daily. Diets with higher inclusion levels of SBSM (diets 3 and 4) significantly depressed growth performance of fish. The variations observed in the Specific Growth Rate (SGR), Feed Conversion Ratio (FCR), Feed Efficiency Ratio (FER) and Protein Efficiency Ratio (PER) were associated with the anti-nutrients present in the diets, these parameters reduced with increasing levels of SBSM in the diets of fish. Based on the relative cost of diets per unit weight gain and protein gain, diet 2 (25% SBSM) was most economical. The results suggested that SBSM can be used to substitute up to 25% levels of dietary protein in <em>C. gariepinus</em> juveniles without significant reduction in growth.


2017 ◽  
Vol 75 (1) ◽  
pp. 5-11 ◽  
Author(s):  
Victor Tosin Okomoda ◽  
Lateef Oloyede Tiamiyu ◽  
Gabriel Wase

Abstract The performance of Clarias gariepinus (Burchell, 1822) fingerlings reared in white, green, blue, black and red coloured tanks was investigated. Each colour was tested in triplicate 1 m3 tanks with an initial stocking density of 100 fingerlings per tank (1.07 g). Fish were fed a commercial diet at 5% body weight per day for eight weeks. Fish weights were sampled every 2 weeks to adjust feeding rates. Tank colour had a significant effect (P < 0.05) on the overall performance of the fingerlings. Rearing in black tanks resulted in a higher daily feed intake (0.44 g) and better growth performance when compared to other tank colours, while the poorest performance was observed in blue and green tanks. Carcass protein and fat content at 8 weeks revealed a trend similar to that observed for growth. Also, serum glucose tests showed higher levels in light background tanks and were thought to be an indication of stress. Survival was not affected by tank colour. It was concluded that dark-coloured tanks such as black or red were better in comparison to light-coloured tanks for the rearing of African catfish fingerlings


F1000Research ◽  
2017 ◽  
Vol 6 ◽  
pp. 1545 ◽  
Author(s):  
Iskandar Putra ◽  
Rusliadi Rusliadi ◽  
Muhammad Fauzi ◽  
Usman M. Tang ◽  
Zainal A. Muchlisin

Background The objective of the present study was to evaluate the growth performance and feed utilization of African catfish Clarias gariepinus fed a commercial diet and reared in the biofloc system enhanced with probiotic. Methods The treatment was the frequency of probiotic application into the cultured system, namely, 5-day interval, 10-day interval, and 15-day interval for 60 days of experiment. Biofloc culture was grown in an experiment tank (vol. 2000 L) by mixing the probiotic (Bacillus sp.) 10 mL and molasses 200 mL per liter of water.  The fish was stocked into the biofloc system 7 days after cultured at stocking density of 1000 fish tank-1.  The fish was fed a commercial diet that contains 38% crude protein, twice a day at satiation. The application of probiotic was reperformed after 5 days, 10 days, and 15 days after stocking. Results The study showed that the growth performance, survival, and feed utilization of African catfish were higher in the treatment at 5-day intervals over 60 days. The ANOVA test showed that the application frequency of probiotic into biofloc system of cultured media had the significant effect on the growth performance, survival rate, and feed utilization of African catfish. Conclusion The best growth performance and feed utilization were  found at the application of probiotic into biofloc system at 5-day intervals over 60 days.


2018 ◽  
Vol 17 (3) ◽  
Author(s):  
Hidayat Suryanto Suwoyo ◽  
Sri Redjeki Hesti Mulyaningrum ◽  
Rachman Syah

The study aimed to evaluate the combination between commercial feed and fermented tofu waste feeding for growth, survival rate and production of red Tilapia Oreochromis niloticus in pond. The study was conducted in Experimental Pond Installation of Research Institute for Coastal Aquaculture, Maros, South Sulawesi, using eight ponds with 2,500 m2 in size. Red Tilapia fingerlings (±8 cm in length) were reared for 112 days with 1 individu/m2 of stocking density. The feeding treatments were of 100% commercial feed (A), 75% commercial feed + 25% fermented tofu waste (B), 50% commercial feed + 50% fermented tofu waste (C), and 25% commercial feed + 75% fermented tofu waste (D). Feeding frequency was given twice a day using concentration 10% of biomass weight in the first month, and decreased by 3% of biomass weight in the fourth month. Experimental was designed by a completely randomized designed consisted of four treatments and two replications for each treatment. Observed variables were growth, survival rate, feed conversion ratio, production, and water quality. Present study indicated that different levels of combination of commercial feed and fermented tofu waste had significant effect on growth (P<0.05), but did not have significant effect on survival rate, production, and feed conversion ratio (P>0.05). Feeding by combination of 75% commercial feed + 25% fermented tofu waste could be utilized optimally by Tilapia. During experiment, pond water quality was in conducive condition to support the growth and survival rate of red Tilapia.


F1000Research ◽  
2018 ◽  
Vol 7 ◽  
pp. 1917
Author(s):  
Mir'atul Hayat ◽  
Rudy Agung Nugroho ◽  
Retno Aryani

Background: Stocking density is key to successful Majalaya common carp (Cyprinus carpio Linnaeus 1758) culture which is a valuable fish culture in Indonesia.  The aim of the present study was to evaluate the growth statues, feed utilization, and survival rate of Majalaya common carp (reared with different stocking density. Methods: In total, 1400 fish were randomly distributed into four replicates of four different groups of stocking density: 50, 75, 100, and 125 fish m−3. All fish were fed using a satiation method, three times per day with commercial diet for 12 weeks. At the end of the trial week, growth, feed utilization, and survival were determined. Water quality measures, such as dissolved oxygen (mg L-1), temperature (°C), pH, NH3 (mg L-1), and NO2 (mg L-1) were also measured once a week during the trial. Results: Similar weight gain and SGR were found in Majalaya common carp reared at stocking densities of 50 to 100 fish m3. However, 125 fish m-3 density may reduce weight gain and SGR. The average weekly and daily weight gain of Majalaya common carp significantly increased when reared from 50 to 100 fish m-3 and remained constant at 125 fish m-3 density. Meanwhile, feed conversion ratio and survival of Majalaya common carp were not affected by any stocking density. Conclusions: A stocking density of 100 fish m-3 exhibited significantly higher growth of Majalaya common carp in hapa net ponds among the treatment. Temperature ranges of 29.20-33.38°C, pH 7.47-8.22, DO 4.76-7.55 (mg L-1), NH3 0-0.5 mg L-1, and NO2 0-1 mg L-1 were found to provide optimum condition to the fish.


2020 ◽  
pp. 113-117
Author(s):  
Ofonime Edet Afia ◽  
David Oristeseyi Kolawole ◽  
Gift Samuel David

In fish farming, feeding rate is an important factor affecting the growth of fish, and thus determining the optimal feeding rate is important to the success of any aquaculture operation. This study which lasted for 99 days investigated the effect of varying feeding rates on the growth response of African catfish, Clarias gariepinus fingerlings. One hundred and eighty fingerlings were randomly distributed into nine experimental tanks giving 20 fingerlings per tank with an initial weight of 5.92±0.006 g. Three feeding rates were employed as treatments – 3%, 5%, and 7% of fresh body weight, with three replicates per treatment. The fishes were fed three times daily with commercial feed (Aller-aqua) of 42% crude protein. Growth and water quality parameters were measured fortnightly and feed ration adjusted according to the biomass in each tank. Results show that Final Mean Weight, Mean Weight Gain, Specific Growth Rate, Performance Index and Protein Efficiency Ratio were significantly higher (p<0.05) in fish fed 7%. However, Feed Conversion Ratio were better at 3% body weight (p<0.05). Based on the growth performance and feed efficiency data obtained, the study suggests the optimum feeding rate of 5% bw/day for African catfish, C. gariepinus fingerlings.


Author(s):  
Ibnu Dwi Buwono ◽  
Iskandar Iskandar ◽  
Roffi Grandiosa

AbstractClarias gariepinus growth hormone (CgGH) transgenesis was previously used to develop a population of second-generation (G2) transgenic mutiara catfish (C. gariepinus). The third generation of these fish (1-month old fingerlings) had 2–3 times improvement in growth compared to non-transgenic fish in the commercial feed test for 6 weeks of rearing. We assessed the impact of CgGH transgene expression on growth and protein and amino acid content of the G3 generation of these transgenic mutiara catfish relative to non-transgenic catfish. Since variation in composition of feed mixes can affect protein and amino acid content of fish, we tested three mixtures of commercial feed and boiled tuna (Euthynnus affinis): feed A (50:50 feed to tuna), B (65:35), and C (80:20) to transgenic catfish. Feed A* (50:50) was fed as a control to non-transgenic catfish. Feed efficiency, including feed conversion ratio and protein use efficiency (i.e., protein retention and protein productive value), was assessed. Feed efficiency, protein content, and essential amino acid content in G3 transgenic catfish (feed A and B) were higher than in non-transgenic fish (feed A*). The latter were deficient in lysine and methionine. Transgenic catfish fed with feed C (80:20) showed lysine deficiency and lower growth than fish fed feeds A and B. Feed B (65:35) was the optimal feed mixture utilized; it increased growth, protein levels, and feed conversion efficiency in G3 catfish. The growth of transgenic fish was higher than non-transgenic fish when supported by feeding with balanced nutrients.


2018 ◽  
Vol 17 (1) ◽  
pp. 34
Author(s):  
Rina Hesti Utami ◽  
Kukuh Nirmala ◽  
Iman Rusmana ◽  
Daniel Djokosetiyanto ◽  
Yuni Puji Hastuti

<p align="center"><strong>ABSTRACT</strong></p><p>This study aimed to evaluate the production performance and physiological of Nile tilapia using <em>Lemna perpusilla </em>as a phytoremediator in a recirculation system.  A completely randomized design with two treatments and three replications was applied. The treatments were Nile tilapia cultured with <em>L. perpusilla </em>(TL)<em> </em>and without <em>L. perpusilla </em>(L). The experimental fish in this study was the juvenile of Nile tilapia with a body length of 9.98 ± 0.08 cm and an average weight of 36.27 ± 1.07 g. The stocking density was 46 fish/pond and the container size was 275×100×60 cm<sup>3</sup> and was separated in two areas using a fiber separator screen of 55.9% area for fish culture and 44.1% for <em>L. perpusilla</em>.  The Nile tilapias were reared for 60 days, fed with commercial diet and fresh <em>L. Perpusilla </em>with amount 2% and 1% of biomass, respectively. They were fed three times a day with fresh <em>L. perpusilla  </em>at noon and commercial diet in the morning and afternoon. The results showed that the Nile tilapia reared with <em>L. perpusilla</em> phytoremediation had normal physiological condition and production performance.<strong> </strong>The predominances of this system were lower feed conversion ratio value, more optimal values of feeding efficiency, and higher coefficient of weight uniformity.</p><p> </p><p>Keywords:<strong> </strong><em>Lemna perpusilla</em>, physiological condition, phytoremediation, production performance.</p><p><strong> </strong></p><p> </p><p align="center"><strong>ABSTRAK</strong></p><p>Penelitian ini bertujuan mengevaluasi kinerja produksi dan fisiologi ikan nila dengan penggunaan <em>Lemna perpusilla </em>sebagai fitoremediator pada sistem resirkulasi. Rancangan penelitian yang digunakan adalah acak lengkap dengan dua perlakuan dan tiga ulangan. Ikan nila dipelihara pada kolam tanpa <em>L. perpusilla</em> (TL) dan ikan nila dipelihara pada kolam dengan <em>L. perpusilla </em>(L). Ikan yang digunakan dalam penelitian ini adalah benih ikan nila dengan panjang baku 9,98 ± 0,08 cm dan bobot rata-rata 36,27 ± 1,07 g. Padat tebar ikan tiap kolam pemeliharaan 46 ekor/kolamdengan ukuran kolam 275×100×60 cm<sup>3</sup>. Setiap kolam diberi sekat dengan luasan 44,1% <em>L. perpusilla</em> dari luasan kolam. Ikan nila dipelihara selama 60 hari pemeliharaan dengan pakan berupa pakan komersial dan <em>L. perpusilla</em> dengan jumlah pakan masing-masing 2% dan 1% dari biomassa. Pada pagi dan sore hari diberi pakan komersial, dan siang hari ikan diberi pakan <em>L. perpusilla</em>. Hasil penelitian ini menunjukkan bahwa ikan nila yang dipelihara dengan fitoremediasi <em>L. perpusilla </em>menghasilkan kinerja produksi dan kondisi fisiologis yang normal. Keunggulan sistem ini adalah menghasilkan nilai konversi pakan<em> </em>yang lebih rendah, nilai efisiensi pemberian pakan, dan koefisien keseragaman bobot yang lebih tinggi.</p><p> </p><p>Kata kunci :<em> </em>fitoremediasi, <em>Lemna perpusilla</em>, kondisi fisiologis, kinerja produksi.</p><p> </p>


2020 ◽  
Vol 19 (2) ◽  
pp. 190-198
Author(s):  
Anang Fajrin ◽  
Nurbambang Priyo Utomo ◽  
Julie Ekasari ◽  
Sri Nuryati

This research aimed to evaluate the health status, growth performance, and meat quality of African catfish Clariasgariepinus maintained in biofloc and nonbiofloc systems. This study applied 3 treatments with 4 replications, i.e.K500 (control, a non-biofloc system at a fish stocking density of 500/m3), BF500 (biofloc system at a fish stockingdensity of 500/m3), and BF700 (biofloc system at a fish stocking density of 700 /m3). The initial body length andbodyweight of the fish used in this experiment were 10–12 cm and 10–12g, respectively. Feeding was done byusing a commercial feed containing 29.76% protein content. The results showed that fish survival in treatmentsBF500 and BF700 were significantly different (P<0.05) from the control. The growth rate of African catfish in thecontrol (K) was the lowest (3.64 ± 0.56%) among the treatments. The results of the organosensory test showed thatthe application of biofloc systems produced a higher quality of fish meat with a range value of 7–9 compared to thatof the control with a range of 6–7. In conclusion, the application of biofloc systems could improve the fish healthstatus, growth performance, and meat quality of African catfish. Keywords: biofloc systems, Clarias gariepinus, density, health status, meat quality ABSTRAK Penelitian ini bertujuan mengevaluasi status kesehatan, kinerja pertumbuhan, dan kualitas daging ikan lele AfrikaClarias gariepinus yang dipelihara menggunakan sistem bioflok dan nonbioflok. Penelitian ini menggunakan 3perlakuan dengan 4 kali ulangan, yang terdiri dari: K500 (kontrol, sistem nonbioflok dengan kepadatan ikan 500ekor/m3), perlakuan BF500 (sistem bioflok dengan kepadatan ikan 500 ekor/m3), dan perlakuan BF700 (sistembioflok dengan kepadatan ikan 700 ekor/m3). Ikan yang digunakan berukuran panjang dan bobot awal masingmasing10–12 cm dan 10–12 g. Pemberian pakan dilakukan dengan menggunakan pakan komersil dengan 29,76%protein. Hasil penelitian menunjukan tingkat kelangsungan hidup antara perlakuan BF500 dan BF700 berbeda nyata(P<0.05) dengan perlakuan K500. Laju pertumbuhan ikan lele pada perlakuan K500 lebih rendah dibandingkanperlakuan lain. Hasil pengujian organosensory menunjukkan bahwa ikan yang dipelihara dalam sistem bioflokmenghasilkan kualitas daging yang lebih tinggi dengan kisaran nilai 7–9 dibandingkan dengan ikan K500 dengannilai 6–7. Berdasarkan hasil penelitian ini dapat disimpulkan bahwa aplikasi sistem bioflok dapat meningkatkanstatus kesehatan, laju pertumbuhan, dan kualitas daging ikan lele Afrika. Kata kunci: bioflok, Clarias gariepinus, kepadatan, kualitas daging, status kesehatan


Sign in / Sign up

Export Citation Format

Share Document