Microdiets as alternatives to live feeds for fish larvae in aquaculture: improving the efficiency of feed particle utilization

2013 ◽  
pp. 203-222 ◽  
Author(s):  
S. Kolkovski
Keyword(s):  
Fish Larvae ◽  
Live Feeds

Rotifers, Artemia and copepods as live feeds for fish larvae in aquaculture

2013 ◽  
pp. 157-202 ◽  
Author(s):  
J. Dhont ◽  
K. Dierckens ◽  
J. Støttrup ◽  
G. Van Stappen ◽  
M. Wille ◽  
...  
Keyword(s):  
Fish Larvae ◽  
Live Feeds

scholarly journals Application of Live Feeds in the Freshwater Ornamental Fish Larvae of Puntius Dorsalis (Jerdon)

2005 ◽  
Vol 4 (2) ◽  
pp. 1-7
Author(s):  
B. Victor ◽  
M. Mannar Mannan ◽  
M. Maridass ◽  
P. Murphy Alexander ◽  
J. M. A. P. Arachi
Keyword(s):  
Growth Rate ◽  
Specific Growth ◽  
Fish Larvae ◽  
Maximum Growth ◽  
Maximum Growth Rate ◽  
Ornamental Fish ◽  
Mosquito Larvae ◽  
Larval Fishes ◽  
Live Feed ◽  
Live Feeds

Feeding experiment conducted under laboratory conditions, to determine the suitability of live feed for the larvae of ornamental fish Puntius dorsalis, shows the increase of specific growth rate and weight gain when they were fed with mosquito larvae( 3.284 and 8.04%/day),chironomus larvae(3.308 and 6.24%/day),chopped earthworm (2.618 and 4.39%/day). The maximum growth rate,0.614g was observed in mosquito larvae feed followed by chironomus larvae(0.522 g),chopped earthworm(0.411g) and plankton(0.405g). The present study indicates that mosquito larvae could be used as a suitable live feed for feeding Puntius dorsalis larval fishes.

Reproductive Biology and Mass Production of Pseudodiaptomus annandalie Sewell (Copepoda: Calanoida)

2014 ◽  
Vol 12 (1) ◽  
Author(s):  
ROMEO D. CATURAO
Keyword(s):  
Reproductive Biology ◽  
Fish Larvae ◽  
Scale Up ◽  
Step Method ◽  
Field Collection ◽  
Live Feeds ◽  
Salinity Levels ◽  
Chaetoceros Calcitrans ◽  
Nutritional Studies ◽  
Microalgal Species

Due to expensive microparticulate diets for marine fish larvae, mariculturesystems shifted to alternative live feeds. P. annandalie is recommended asalternative larval feed; however, field collection is unreliable because the quantityrequired is variable in nature. This study examined the reproductive biology andmass production of P.annandalie. The reproductive biology was characterized byegg, nauplii, copepodite and total abundances, and fecundity through feedingvarious locally available microalgal species and at different salinity levels. Exceptfor scaling up, all experiments were conducted in complete randomized designand data were analyzed by ANOVA at 0.05 alpha using SPSS. Results showed that reproductive biology of P. annandalie cultured for 20 days is better enhanced by microalgal species (Chaetoceros calcitrans) at lower salinity of 20 ppt. Scale-up andmass production was possible through a multi-step method. It is recommendedthat nutritional studies should be explored to improve fecundity of this species.Keywords - Biology, Pseudodiaptomus annandalie, reproductive biology, fecundity, massproduction, and experimental design

scholarly journals Probiotic correction of Daphnia magna microbial profile using Lactobacillus casei UCM7280

2020 ◽  
Vol 12 (1) ◽  
pp. 3-7
Author(s):  
Lidiia Khuda ◽  
Mykola Spivak ◽  
Oleksandr Demchenko ◽  
Oksana Karucheru ◽  
Olha Frunza ◽  
...  
Keyword(s):  
Daphnia Magna ◽  
Targeted Delivery ◽  
Lactobacillus Casei ◽  
Fish Larvae ◽  
Optimal Schedule ◽  
Density Level ◽  
Fish Products ◽  
Microbial Profile ◽  
Live Feed ◽  
Live Feeds

The anthibiotics use in aquaculture these days is severely restricted by European standarts of marketable fish products quality. According to this, one of the most efficient alternatives are probiotics. So the search of applicable probiotic microorganisms that can be applied in aquaculture is relevant. On the other side, probiotics introduction into the fish body is usually accomplished in composition with dry feed as a biofilm. But a lot of fish larvae are not capable of consuming dry artificial feed due to numerous reasons. For their transmission for endogenic nourishment from exogenic live feeds are used in aquaculture, which have a higher level of digestibility compared to granulated feed. One more advantage of live feed is that they can be used as vectors to provide the targeted delivery of probiotics into fish body. In this work Lactobacillus casei IMV 7280 was firsly tested for the needs of aquaculture. It is shown that the usage of this probiotic during the growing of carp whitebaits stimulates it growth and leads to unwanted microflora suppresion in water as well as in fish bodies. The optimal schedule of L. сasei UCM 7280 bioencapsulation into live feed with Daphnia magna as an example is designed and suggested. It is shown that bioencapsulation procedure realization does not repress D. magna΄s normal mocrobiome, provides the increase of proteins and lipids level for 1,2 and 1,4 times accordingly and spends up the increasing of density level of fodder organisms.

scholarly journals Effect of enriching live feeds with HUFA on growth and survival of clownfish Amphiprion ocellaris (Cuvier, 1830) larvae

2019 ◽  
Vol 19 (4A) ◽  
pp. 191-199
Author(s):  
Ho Son Lam ◽  
Nguyen Thi Nguyet Hue ◽  
Dinh Truong An ◽  
Phan Thi Khanh
Keyword(s):  
Survival Rate ◽  
Production Efficiency ◽  
Specific Growth ◽  
Fish Larvae ◽  
Control Diet ◽  
Live Prey ◽  
Growth And Survival ◽  
Live Feed ◽  
Live Feeds ◽  
Set Up

The aims of this study was to evaluate the effect of HUFA-enriched live feed in rearing Nemo fish larvae (Amphiprion ocellaris), 5 treatments were set up (each treatment was repeated in triplicate) with 5 concentrations of HUFA (Super Selco) (0, 50, 100, 150 and 200 ppm). After 45 days of culture with HUFA-enriched live feeds of different concentrations, the total length-TL as well as the specific growth rate (SGRL) in body length and survival rate of Nemo fish larvae in the treatments had significant differences (p < 0.05). In the enriched live prey diet of 100 ppm Selco, TL, SGRL and the survival rate of Nemo fish larvae were the highest (10.01 ± 0.150 mm, 7.20 ± 0.099%/day and 82.67 ± 0.881%, respectively). Lowest TL, SGRL and survival rate were obtained in larvae fed with the control diet (8.65 ± 0.051 mm, 6.23 ± 0.041%/day and 68.70 ± 0.881%, respectively). The results of this experiment suggest that the optimal Selco concentration used to enrich live feeds for Nemo fish larvae is 100 ppm, which can improve the production efficiency of Nemo stock.

scholarly journals The Efficacy of Moina micrura Enriched with Probiotic Bacillus pocheonensis in Enhancing Survival and Disease Resistance of Red Hybrid Tilapia (Oreochromis spp.) Larvae

Antibiotics ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 989
Author(s):  
Nur Amalina Samat ◽  
Fatimah Md Yusoff ◽  
Nadiah Wan Rasdi ◽  
Murni Karim
Keyword(s):  
Fish Larvae ◽  
Disease Outbreaks ◽  
Feed Additives ◽  
Control Group ◽  
Larval Feeding ◽  
Percentage Survival ◽  
Live Feeds ◽  
Agar Well Diffusion Assay

The administration of probiotics via live feeds, such as Artemia and rotifers, has gained significant attention. Moreover, indiscriminate use of antibiotics in conventional aquaculture practices in order to prevent or control disease outbreaks has resulted in the occurrence of residues and antimicrobial resistance. Thus, the application of eco-friendly feed additives, such as probiotics, as a safer alternative has received increasing attention in recent years. However, only minimal information on the administration of probiotics via freshwater cladoceran Moina micrura is available despite being commonly used for larval and post-larval feeding of freshwater crustaceans and fish. Thus, this study aimed to evaluate the application of Bacillus pocheonensis strain S2 administered via M. micrura to red hybrid tilapia (Oreochromis spp.) larvae. Bacillus pocheonensis that has been previously isolated from Spirulina sp. was subjected to preliminary in vitro evaluation of antagonistic properties. The agar well-diffusion assay revealed that this probiont could inhibit the growth of Streptococcus agalactiae and Aeromonas hydrophila. The size of inhibition zones ranged from 8.8 ± 0.2 to 18.2 ± 0.4 mm. Moina micrura was later used as a biological model in preliminary in vivo bacterial challenge assays to evaluate the efficacy of B. pocheonensis in protecting the host from diseases. Moina micrura was pre-enriched with B. pocheonensis at 104 and 106 CFU mL-1 before S. agalactiae and A. hydrophila were introduced into the culture. The study revealed that B. pocheonensis at 104 CFU mL-1 was able to significantly enhance the survival of M. micrura after being challenged with both pathogens (63 ± 3%) in comparison to the control group. The relative percentage survival (RPS) of M. micrura was highest (p < 0.05) when treated with B. pocheonensis at both concentrations 104 and 106 CFU mL-1 (38.33) after being challenged against S. agalactiae. To assess the efficacy of B. pocheonensis in protecting red hybrid tilapia against streptococcosis, the larvae were fed with either unenriched (control) Moina or probiont-enriched Moina daily for 10 days. A significantly (p < 0.05) higher survival rate (77 ± 3%) was observed in larvae fed with probiont-enriched M. micrura compared to other treatments, and the RPS was recorded at 62.90. In addition, the S. agalactiae load was suppressed in larvae fed probiont-enriched M. micrura (6.84 ± 0.39 CFU mL-1) in comparison to the control group (7.78 ± 0.09 CFU mL-1), indicating that the probiont might have contributed to the improvement of tilapia health and survival. This study illustrated that M. micrura was suitable to be used as a vector for probiotics in freshwater fish larvae as an alternative to hazardous antibiotics for disease control.

scholarly journals ARE COPEPODS VIABLE OPTIONS AS LIVE FOOD IN AQUACULTURE HATCHERIES?

2009 ◽  
Vol 4 (1) ◽  
pp. 65
Author(s):  
Wa Iba ◽  
Hatim Albasri
Keyword(s):  
Nutritional Value ◽  
Fish Larvae ◽  
Larval Survival ◽  
Live Food ◽  
Culture Methods ◽  
Nutritional Values ◽  
Live Feeds

This present paper overviews the use of copepods in aquaculture. Some culture methods and nutritional values also described to decide whether copepods are viable and reliable to be used as live food in aquaculture hatcheries. Copepods have been known to have higher nutritional value than Artemia and rotifers. In aquaculture, they have been used to fed various species of marine finfish with better results in terms of growth, larval survival and pigmentation compared to some fish larvae fed on other live feeds. However, culturing copepods in intensive systems to harvest high number of copepods is not well established yet due to lack of funding and knowledge. Meanwhile extensive and semi intensive systems are possible to transfer parasites and diseases from wild environment. Furthermore, nutritional value can not be controlled in such systems.

scholarly journals PENGARUH PEMBERIAN PAKAN ALAMI Moina sp. DENGAN DOSIS YANG BERBEDA DALAM Feeding Regime TERHADAP PERTUMBUHAN DAN KELULUSHIDUPAN LARVA IKAN BAUNG (Hemibagrus nemurus)

2019 ◽  
Vol 3 (1) ◽  
Author(s):  
Anggi Trisna Dewi ◽  
Suminto Suminto ◽  
Ristiawan Agung Nugroho
Keyword(s):  
Fish Larvae ◽  
Economic Value ◽  
Utilization Efficiency ◽  
Larval Rearing ◽  
Growth And Survival ◽  
Feeding Regime ◽  
Live Feed ◽  
Randomized Design ◽  
Live Feeds ◽  
Absolute Length

Baung (Hemibagrus nemurus) is one of the endogeneous freshwater fish that has economic value. Baung still rarely cultivated and only relies on catches, so its need to be cultivated. Live feed must be given the appropriate amount because the fish will grow not optimally if the feed is a few or too much. Moina sp. is one of the live feeds that can be given to baung larvae. The nutritions content of Moina sp. were 37.38% protein, 13.29% fat, 0.00% crude fiber, 11.00% ash, and 99.60% moisture content. Size of Moina sp. that suitable for larvae ranges is 500 – 1,000 μm.The aim of this study was to evaluate the effect of live feed Moina sp. with different doses in feeding regime on growth and survival of larvae baung and to determine the best dose of Moina sp. on growth and survival larvae baung. The research was carried out at the Technical Implementation Unit of the Fish Larvae Center (UPT BBI) Sawangan, Magelang District in March – May 2018. The individuals of D3 larvae with a length of 0.6 ± 0.1 cm were used in the culture. The research was conducted using experimental method with completely randomized design (CRD) with 4 treatments and 3 replicates. Those treatments  were treatment A (5ind / ml), B (10 ind / ml), C (15 ind / ml), and D (20 ind / ml).The results showed that the different dose of live feed Moina sp. significantly affected (P <0.01) on TKP, Pm, SGR, EPP, PER and RGR but not significantly affected  (P>0.05) on SR. in. treatment D showed the best value of absolute length, SGR and SR in D3D15 stage were 0.9 ± 0.10, 7.04 ± 0.5, 90 ± 3.3,respectivel. In other addition of  D15-D28 had absolute length, SGR, FCR, Feed utilization efficiency, PER, RGR and SR were 0.8 ± 0.10, SGR 3.55 ± 0.17 , 1.31 ± 0.1, 76.76 ± 6.2,1.53 ± 0.1, 5.24 ± 0.5, 85.22 ± 3.5. However,20 ind/ml of Moina sp dosage which be recommend for baung larval rearing in hatchery.

Marking live feeds with inert metal oxides for fish larvae feeding and nutrition studies

2008 ◽  
Vol 39 (4) ◽  
pp. 347-353 ◽  
Author(s):  
Matthew A Cook ◽  
Ronald B Johnson ◽  
Pete Nicklason ◽  
Harold Barnett ◽  
Michael B Rust
Keyword(s):  
Metal Oxides ◽  
Fish Larvae ◽  
Live Feeds
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