scholarly journals Effects of feeding frequency on growth performances and RNA : DNA ratio of the gangetic mystus (Mystus cavasius Hamilton, 1822) in laboratory condition

2018 ◽  
Vol 27 (1) ◽  
pp. 75-83
Author(s):  
Mosheur Rahman ◽  
Mohammad Shamimul Alam ◽  
Md Golam Rabbane
Keyword(s):  
Survival Rate ◽  
Growth Performance ◽  
Laboratory Condition ◽  
Condition Factor ◽  
Feeding Frequency ◽  
Laboratory Rearing ◽  
Laboratory Facilities ◽  
Growth Performances ◽  
Significant Difference ◽  
Rna:Dna Ratio

Experiments were conducted for a period of 90 days to estimate the effects of different feeding frequencies (one time per day: T1, two times per day: T2, three times per day:T3 and four times per day: T4) on growth performance of gulsha fish reared in laboratory facilities. Significantly higher condition factor was observed in T2 (1.61 ± 0.02) and lowest in T4 (1.40 ± 0.01). Significantly lowest SGR and ADG were recorded in T4 fish fed four times per day. No significant difference was obtained among different treatments for FCR and survival rate. The highest RNA : DNA ratio (0.93 ± 0.07) was observed in fish of T2 and the lowest ratio (0.57 ± 0.11) was observed in fish of T1. The results of the present study suggest that in laboratory rearing two meals per day could be supplied for better growth performances as per indication of condition factor and RNA:DNA ratio. Dhaka Univ. J. Biol. Sci. 27(1): 75-83, 2018 (January)

scholarly journals Evaluation of the effect of probiotic bacteria on growth performance and survival rate of carp, Cyprinus carpio

2019 ◽  
Vol 7 (1) ◽  
pp. 243
Author(s):  
Jeane T Sumaraw ◽  
Henky Manoppo ◽  
Reiny A. Tumbol ◽  
I.F.M Rumengan ◽  
Henny A. Dien ◽  
...  
Keyword(s):  
Body Weight ◽  
Survival Rate ◽  
Growth Performance ◽  
Cyprinus Carpio ◽  
Probiotic Bacteria ◽  
Pathogenicity Test ◽  
Feeding Frequency ◽  
Biochemical Tests ◽  
Growth Performances ◽  
Carp Cyprinus Carpio

The objective of this research was to obtain probiotic bacteria isolated from the digestive tract of catfish Clarias batracus, to evaluate its effect on growth performances and survival rate of carp. After purified, the bacteria was identified through biochemical tests and selection was carried out through proteolytic, amylolytic, cellulolytic, tests as well as pathogenicity test. Probiotic candidate was administered orally to fish at different concentrations. The fish were fed for 30 days respectively as much as 3% of body weight per day with feeding frequency of two times a day. The results showed that addition of probiotics into feed significantly increased growth performance but not survival rate.Keywords: Probiotic, Clarias batracus,  growth performance, aquaculture. ABSTRAKTujuan dari penelitian ini adalah untuk mendapatkan bakteri probiotik yang diisolasi dari saluran pencernaan ikan lele Clarias batracus, dan mengevaluasi pengaruhnya terhadap kinerja pertumbuhan dan kelangsungan hidup benih ikan mas. Bakteri probiotik diidentifikasi melalui uji biokimia dan seleksi dilakukan melalui proteolitik, amilolitik, tes selulolitik dan patogenisitas. Kandidat probiotik diberikan pada ikan secara oral dengan konsentrasi berbeda Pemberian pakan berprobiotik berlangsung selama 30 hari sebanyak  3% dari berat badan per hari dengan frekuensi pemberian dua kali sehari. Hasil penelitian menunjukkan bahwa penambahan probiotik ke dalam pakan secara signifikan meningkatkan kinerja pertumbuhan namun tidak memengaruhi kelangsungan hidup benih ikan mas.Kata kunci : Probiotik, Clarias batracus, kinerja pertumbuhan, budidaya

scholarly journals Effects of rotifer densities on larval performance of spotted scat (Scatophagus argus)

2021 ◽  
Vol 13 (Aquaculture) ◽  
pp. 37-43
Author(s):  
Quoc Viet Le ◽  
Van Khanh Ly ◽  
Thi My Han Duong ◽  
Nguyen Duy Khoa Tran ◽  
Tomonari Kotani ◽  
...  
Keyword(s):  
Survival Rate ◽  
Growth Performance ◽  
Body Length ◽  
Fish Larvae ◽  
Larval Growth ◽  
Larval Performance ◽  
Scatophagus Argus ◽  
Wide Range ◽  
Significant Difference ◽  
Set Up

This study is aimed to determine the optimal rotifer feeding density for larviculture of spotted scat fish (Scatophagus argus). The experiment was randomly set up in triplicate with 5 treatments including 5, 10, 15, 20 and 25 rotifers/mL. The fish larvae with the initial body length and depth at 2,343 ± 110 µm and 812 ± 85µm, respectively, were stocked in 250-L tanks at 10 larva/L of density and 25‰ of salinity. After 21 days of rearing, the results showed that the larval growth were at 243 – 330 µm/day of DLG and 5.50 – 6.70 %/day of SGRL; 131 –204 µm/day of DDG and 7.20 – 8.93 %/day of SGRD, but no significant difference in larval growth performance was recorded among treatments (p>0.05). However, the highest survival rate of fish larvae (35.4-48.1%) was recorded in the treatments fed 5 and 10 rotifers/mL and was significantly higher than other treatments (p<0.05). The data demonstrated that spotted scat larvae fed effectively across as wide range of rotifer densities and the range at 5-10 rotifers/mL were suggested for the husbandry practices.

scholarly journals Effects of stocking density on growth performance, survival rate and economic efficiency of Asian seabass (Lates calcarifer) cultured in earthen pond

2020 ◽  
Vol 19 (05) ◽  
pp. 65-70
Author(s):  
Nhan T. Dinh
Keyword(s):  
Water Quality ◽  
Survival Rate ◽  
Growth Performance ◽  
Economic Efficiency ◽  
Quality Parameters ◽  
Fish Growth ◽  
Water Quality Parameters ◽  
Lates Calcarifer ◽  
Asian Seabass ◽  
Significant Difference

This trial aimed to evaluate effects of stocking densities of 1-5 fish/m2 on growth performance, survival rate and economic efficiency of Asian seabass (Lates calcarifer) in earthen ponds. Fish with an initial length of 90.7 ± 0.1 mm and weight of 20.8 ± 0.1 g/fish and ponds with 600 m2 each and 1.5 m depth were used for this study. Experiment was designed with three treatments, including different stocking densities of 1, 3 and 5 fish/m2. The fish was fed with pellete feed containing 43 - 44% crude protein. Water quality parameters including temperature, dissolved oxygen, pH, salinity, transparency and ammonia concentration were measured once a week. Fish were sampled every 30-day intervals for length and weight measurement then for their growth estimation. Costs were recorded for economic efficiency estimation. Results showed that the water quality parameters were in suitable ranges for growth and development of Asian seabass. The final average length and weight of density 1 fish/m2 was significantly higher than those at 3 and 5 fish/m2 (P < 0.05). However, there was no significant difference on the fish growth in terms of daily length and weight gain, as well as survival rate and feed conversion ratio between different stocking densities. Asian seabass culture at 3 and 5 fish/m2 resulted in a higher profit compared to at 1 fish/m2. The highest economic efficiency in terms of area pond was showed at 5 fish/m2 treatment.

Growth Performance of Larvae Produced from Vitamin E Treated Female Clarias batrachus (Linnaeus)

2013 ◽  
Vol 20 (1-2) ◽  
pp. 107-116
Author(s):  
MFA Mollah ◽  
A Roy ◽  
MSA Mamun
Keyword(s):  
Vitamin E ◽  
Survival Rate ◽  
Growth Performance ◽  
Health Condition ◽  
Clarias Batrachus ◽  
Growth And Survival ◽  
Significant Difference ◽  
The Difference ◽  
Length Gain ◽  
Percent Weight Gain

An experiment to observe the growth performance of the larvae produced from female Clarias batrachus treated with 4 dietary levels of vitamin E viz. 0 mg, 50 mg, 100 mg, and 200 mg /kg feed was conducted for 28 days. After rearing for 3 months females were used for induction of breeding to produce larvae. Same dose of pituitary gland (100 mg PG/kg body weight) was used for all treatments. From the 7th day of hatching, the larvae were reared for another period of 28 days to see growth and survival rate of the larvae produced by the broods maintained under different dietary levels of vitamin E. In case of growth performance (percent length gain, percent weight gain, specific growth rate) and health condition larvae of T2 (50 mg vitamin E/kg feed) showed significantly better result when compared with those of T1 and T3. There was no significant difference in the growth performance between the larvae of T2 and T4. Larvae of T2 although showed higher survival rate but the difference between different treatments was insignificant. The results concluded that 50 mg vitamin E/kg feed is more suitable to increase growth and survival rate of the larvae.DOI: http://dx.doi.org/10.3329/pa.v20i1-2.16862 Progress. Agric. 20(1 & 2): 107 – 116, 2009

scholarly journals Growth performance and survival rate of catfish (Pangasianodon hypophthalmus) juvenile which is reared in recirculation system

2020 ◽  
Vol 20 (3) ◽  
pp. 271
Author(s):  
Yuke Eliyani ◽  
Iin Siti Djunaidah ◽  
Sujono Sujono
Keyword(s):  
Survival Rate ◽  
Growth Performance ◽  
Survival Rates ◽  
Stocking Density ◽  
Fish Growth ◽  
Water Volume ◽  
Bacillus Sp ◽  
Pangasianodon Hypophthalmus ◽  
Significant Difference ◽  
Recirculation System

Although recirculation is a cultivation system that has been tried in various commodities, but the effectiveness of this system to the growth and survival of catfish juvenile has not been done. This study aims to determine the effective-ness of recirculation system on growth performance and survival rate of catfish juvenile (Pangasianodon hypophthal-mus). The research was conducted from 11 October to 30 November 2019 at hatchery unit Department of Fisheries Extension, Jakarta Technical University of Fisheries. This study used experimental method with 3 treatments, namely Control (K: 100% Bioball + Bacillus sp.), Treatment 1 (P1: 50% Bioball + 25% zeolite + 25% resin + Bacillus sp.) and Treatment 2 (P2: Bioball 25 % + zeolit 50% + resin 25% + Bacteria Bacillus sp.). The catfish used in this study was measured 0.08 + 0.02 g. Ind.-1. The fish were kept in a concrete tub of 100 cm x 150 cm x 70 cm with water volume of 750 liters tub-1. Stocking density of fish was 5 fish liters-1. Fish juveniles were fed with commercial feed with a dose of 3% of fish biomass with frequency of 3 times a day-1. Observation fish growth and water sampling for monitoring of the abundance of nitrogen-decomposing bacteria and water quality were carried out every 15 days. The results showed that the highest growth weight of catfish seedlings was found in treatment P1 (0.447±0.142b) compared with K (0.377±0.047a) and P2 (0.363±0.057a) treatment. The values of survival rate for K, P1 and P2 treatments were 51±8, 54±4 and 52±8, respectively. This result implies that no significant difference in the survival rates in all treatments.

scholarly journals KEBUTUHAN PROTEIN PAKAN UNTUK PERFORMA OPTIMAL BENIH IKAN PATIN PASUPATI (PANGASIID)

2018 ◽  
Vol 13 (1) ◽  
pp. 47
Author(s):  
Evi Tahapari ◽  
Jadmiko Darmawan
Keyword(s):  
Survival Rate ◽  
Growth Performance ◽  
Protein Content ◽  
Maximum Growth ◽  
Feed Conversion ◽  
Protein Retention ◽  
Randomized Design ◽  
Significant Difference ◽  
Test Fish ◽  
Feed Protein

Penelitian ini bertujuan untuk mendapatkan kandungan protein optimum pakan untuk menunjang pertumbuhan maksimal dalam pemeliharaan benih ikan patin pasupati. Penelitian dirancang menggunakan rancangan acak lengkap (RAL) dengan empat perlakuan dan tiga ulangan. Sebagai perlakuan adalah pakan dengan kandungan protein berbeda, yaitu: A. 30%, B. 35%, C. 40%, dan D. 45%. Wadah pemeliharaan ikan uji adalah bak fiber berukuran 57 cm x 36 cm x 29 cm. Sebanyak 30 ekor ikan uji berukuran bobot awal 0,94 ± 0,13 g dengan panjang awal 3,82 ± 0,21 cm; ditebar ke dalam setiap bak. Percobaan berlangsung selama empat puluh hari. Ikan diberi pakan lima kali/hari sebanyak 10% dari biomassa ikan. Parameter yang diamati adalah laju pertumbuhan bobot, pertumbuhan panjang, retensi protein, rasio konversi pakan, dan sintasan. Data dianalisis dengan analisis ragam pada selang kepercayaan 95% dan dilanjutkan dengan Uji Beda Nyata Terkecil (Uji BNT). Hasil penelitian menunjukkan bahwa pakan dengan kandungan protein 40% (perlakuan C) memberikan performa pertumbuhan bobot, pertambahan panjang, retensi protein, dan konversi pakan terbaik (P<0,05) dibandingkan dengan perlakuan lainnya. Sintasan ikan pada perlakuan A, B, dan C berturut-turut sebesar 81,11%; 80,00%; dan 80,00% dan tidak berbeda nyata (P>0,05). Ikan pada perlakuan D memiliki sintasan terendah yaitu 72,22%.This study was aimed to determine the optimum feed protein content to support maximum growth performance of catfish juveniles. The study was designed using a completely randomized design (CRD) with four treatments and three replications. The treatments consisted of different protein contents of artificial feed, namely: A. 30%, B. 35%, C. 40%, and D. 45%. The test fish were reared in fiber tank containers sized 57 cm x 36 cm x 29 cm. A total of 30 fish with an initial weight of 0.94 ± 0.13 g and length of 3.82 ± 0.21 cm were stocked into each tank. The experiment lasted for forty days. Fish were fed with the experimental feeds five times/day as much as 10% of the fish biomass. The parameters observed were weight growth rate, growth length, protein retention, feed conversion ratio, and survival rate. The data were analyzed by analysis of variance at 95% confidence interval and continued with the least significant difference (LSD) test. The results showed that the feed with a crude protein content of 40% (treatment C) gave the best growth performance, protein retention and feed conversion and significantly different compared with the other treatments (P <0.05). The survival rate of fish in treatment A, B, and C were 81.11%, 80.00%, and 80.00%, respectively which was not significantly different (P>0.05). Fish in the treatment D had the lowest survival rate (72.22%).

scholarly journals Effects of betaine on the growth of the fish piauçu, Leporinus macrocephalus

2006 ◽  
Vol 49 (5) ◽  
pp. 757-762 ◽  
Author(s):  
Edivaldo Bento Normandes ◽  
Rodrigo Egydio Barreto ◽  
Robson Francisco Carvalho ◽  
Helton Carlos Delicio
Keyword(s):  
Body Weight ◽  
Growth Performance ◽  
Condition Factor ◽  
Control Group ◽  
Food Control ◽  
Experimental Conditions ◽  
Enhancing Effect ◽  
Significant Growth ◽  
Significant Difference ◽  
Experimental Treatments

In this study was tested the effect of betaine on the growth performance of the piauçu fish. For this, twenty-one fish (mean ± SD: body weight: 14.9 ± 1.3 g) were randomly distributed in one out of three experimental treatments (n = 7 each; 1 fish/aquarium): without betaine added in the food (control); 3.6 g betaine/Kg of food; 7.1 g betaine/Kg of food. The fish were exposed to experimental conditions for 60 days. Fish presented significant growth throughout experimentation, but no statistically significant difference was found for any parameter analyzed among the treatments, except for condition factor, which was higher in control group than betaine ones. Accordingly, it was concluded that betaine had no enhancing effect on growth of piauçu.

scholarly journals Optimization of feeding frequency on the growth performance of thai pangas, Pangasius hypophthalmus (Sauvage, 1878)

2015 ◽  
Vol 24 (1) ◽  
pp. 83-90
Author(s):  
Md Ali Husain ◽  
Anwar Hossain ◽  
Shankar Chandra Mandal ◽  
Md Alamgir Kabir ◽  
Mohammad Shamsur Rahman
Keyword(s):  
Growth Performance ◽  
Crude Protein ◽  
Condition Factor ◽  
Average Daily Gain ◽  
Nutritional Composition ◽  
Feed Conversion ◽  
Feeding Frequency ◽  
Feeding Trial ◽  
Crude Lipid ◽  
Daily Gain

Thai pangas, Pangasius hypophthalmus fingerlings were reared for 60 days in laboratory condition to investigate the effects of feeding frequency on the growth performance. The fish fingerlings in three treatments were fed with two, three and four times a day, respectively. During the feeding trial, growth and feed utilization were assessed by condition factor (K), average daily gain (ADG), specific growth rate (SGR) and feed conversion ratio (FCR). Significantly lower FCR 1.81 ± 0.02 and higher ADG 0.38 ± 0.02 and SGR 2.20 ± 0.02% were found in fish fed thrice a day than that of other treatments (p < 0.05). Highest condition factor 1.69 ± 0.13 was found in fish fed four times a day while the lowest condition factor 0.77 ± 0.03 was detected in fish fed twice a day. Moisture content of Thai pangas in treatment T1, T2 and T3 were 79.23 ± 0.77, 78.08 ± 0.85 and 77.84 ± 0.17%, respectively. The crude protein, crude lipid and ash contents were 16.11 ± 0.00 to 16.38 ± 0.08%, 3.22 ± 0.27 to 3.41 ± 0.06% and 1.47 ± 0.02 to 1.82 ± 0.04%, respectively. The findings of the present study demonstrated that three times feeding frequency showed better growth performance and nutritional composition of Thai pangas fingerlings. Dhaka Univ. J. Biol. Sci. 24(1): 83-90, 2015 (January)

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