Empirical modeling of feed conversion in Pacific white shrimp (Litopenaeus vannamei) growth

ABSTRACTThis study was conducted to evaluate the digestibility of biofloc meal collected from catfish culture as a feed raw material for Pacific white shrimp Litopenaeus vannamei diet. A basal feed with 43% crude protein content was used as a control diet and mixed with 2% of binders and 0.5 % of Cr2O3 as a marker for digestibility. The experimental diets were made by mixing 67.5% of the basal diet with 30% of biofloc meal, 2% of binders and 0.5 % of Cr2O3. Nine units of glass tanks (90 cm ×40 cm× 35 cm) filled with 100 L seawater were used as the experimental culture units. White shrimp with an average body weight of 5.61 ± 0.09 g was randomly distributed to each experimental tank at a density of 20 shrimp/tank. The feed was offered at a level of 5% shrimp biomass per day at a frequency of four times a day. The results showed that the dry matter digestibility of feed with 30% biofloc meal in shrimp were similar to that of the reference diet. However, protein and fat digestibility of feed containing biofloc meal were considerably higher than those of the reference diet. Feeding shrimp with 30% biofloc meal diet resulted in higher survival and specific growth rate and lower feed conversion ratio than those of the control. The digestibility of bioflocs dry matter, protein and lipid in Pacific white shrimp obtained in this study were 54.9%, 76.3% and 79.3%, respectively.Keywords: biofloc, digestibility, catfish, shrimp ABSTRAKPenelitian ini dilakukan untuk mengevaluasi kecernaan tepung bioflok yang diambil dari media pemeliharaan ikan lele sebagai bahan pakan udang vaname Litopenaeus vannamei. Pakan yang mengandung kadar protein 43% digunakan sebagai pakan control dan dicampur dengan 2% binder dan 0.5% Cr2O3 sebagai marker untuk kecernaan. Pakan perlakuan dibuat dengan mencampurkan 67.5% pakan control dengan 30% tepung bioflok, 2% binder dan 0.5% Cr2O3. Penelitian menggunakan sembilan unit akuarium (90 cm ×40 cm ×35 cm) yang diisi 100 L air laut. Udang vaname dengan bobot rata-rata 5.61 ± 0.09 g ditebar secara acak pada setiap akuarium perlakuan pada kepadatan 20 ekor/akuarium. Pakan diberikan dengan tingkat pemberian pakan 5% biomassa per hari sebanyak empat kali sehari. Hasil penelitian ini menunjukkan bahwa kecernaan pakan dengan 30% tepung bioflok tidak berbeda nyata dengan pakan acuan. Namun kecernaan protein dan lemak pakan yang mengandung tepung bioflok terlihat lebih tinggi daripada pakan kontrol. Pemberian pakan dengan tepung bioflok sebanyak 30% juga menghasilkan tingkat kelangsungan hidup, laju pertumbuhan spesifik udang dan rasio konversi pakan yang lebih baik daripada udang yang diberi pakan kontrol. Kecernaan bahan, protein dan lemak tepung bioflok pada udang yang didapat dalam penelitian masing-masing adalah 54.9%, 76.3% dan 79.3%.Kata-kata kunci: bioflok, ikan lele, kecernaan, udang

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Mixed culture of Pacific white shrimp Litopenaeus vannamei (Boone, 1931) and flathead grey mullet Mugil cephalus (Linnaeus, 1758) in floating cages

Indian Journal of Fisheries ◽

10.21077/ijf.2016.63.3.56378-08 ◽

2016 ◽

Vol 63 (3) ◽

Cited By ~ 1

Author(s):

Shubhadeep Ghosh ◽

Ritesh Ranjan ◽

Sekar Megarajan ◽

Phalguni Pattnaik ◽

Biswajit Dash ◽

...

Keyword(s):

Mixed Culture ◽

Litopenaeus Vannamei ◽

Pacific White Shrimp ◽

Mugil Cephalus ◽

White Shrimp ◽

Average Weight ◽

Uniform Density ◽

Grey Mullet ◽

Feed Conversion ◽

Average Production

The study explored the possibility of integrating the grey mullet Mugil cephalus (Linnaeus, 1758) along with Pacific white shrimp Litopenaeus vannamei (Boone, 1931) in floating cage culture in Godavary Estuary, India. Post-larvae (PL 12) of L. vannamei (3 lakhs nos.), were acclimatised and nursed in five hapas for 28 days at a density of 3333 nos. m-2, with survival of 60%. L. vannamei juveniles having mean weight of 0.86 g, stocked at a density of 1060 nos. m-2, were cultured along with and without pre-stocked M. cephalus, in three floating cages each. Six thousand fry of M. cephalus (mean length 4.17 cm; mean weight 1.22 g) were stocked in three cages at uniform density of 23.5 nos. m-3, three months prior to stocking of L. vannamei. Shrimps were fed commercial pellets @ 3-8% of body weight, four times daily and harvested after 68 days. Fishes were fed with pelleted feed and after five months attained mean length of 23.7 cm and mean weight of 274.1 g. Survival was 46.4% and the average production obtained was 250.2 kg. At harvest, L. vannamei in monoculture system attained mean weight of 13.3 g and in the mixed culture system, average weight obtained for the shrimps was 13.5 g. Survival, feed conversion ratio (FCR) and production of L. vannamei from monoculture were 64.7%, 2.0 and 258.9 kg and from mixed culture 76.8%, 1.6 and 311.5 kg respectively. Daily weight increment and specific growth rate (SGR) of L. vannamei was 0.18 g and 4.06 for monoculture and 0.19 g and 4.01 for mixed culture, resepectively. Feed conversion, survival and production of L. vannamei were significantly (p<0.05) better in mixed culture, confirming technical superiority of mixed culture over monoculture.

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Functional Feed Assessment on Litopenaeus vannamei Using 100% Fish Meal Replacement by Soybean Meal, High Levels of Complex Carbohydrates and Bacillus Probiotic Strains

Marine Drugs ◽

10.3390/md9061119 ◽

2011 ◽

Vol 9 (6) ◽

pp. 1119-1132 ◽

Cited By ~ 46

Author(s):

Jorge Olmos ◽

Leonel Ochoa ◽

Jesus Paniagua-Michel ◽

Rosalia Contreras

Keyword(s):

Stress Tolerance ◽

Litopenaeus Vannamei ◽

Probiotic Strain ◽

Pacific White Shrimp ◽

Conversion Ratio ◽

White Shrimp ◽

Feed Conversion ◽

Low Oxygen ◽

Commercial Feed ◽

Probiotic Strains

Functional feed supplemented with alternative-economic nutrient sources (protein, carbohydrates, lipids) and probiotics are being considered in shrimp/fish aquaculture production systems as an option to increase yield and profits and to reduce water pollution. In this study the probiotic potential to formulate functional feeds have been evaluated using four dietary treatments: Treatment 1 (B + Bs); Bacillus subtilis potential probiotic strain was supplemented to a soybeanmeal (SBM)—carbohydrates (CHO) basal feed. Treatment 2 (B + Bm); Bacillus megaterium potential probiotic strain was supplemented to the same SBM-CHO basal feed. In Treatment 3 (B); SBM-CHO basal feed was not supplemented with probiotic strains. Treatment 4 (C); fishmeal commercial feed (FM) was utilized as positive control. Feeding trials evaluated the survival, growth, and food conversion ratio and stress tolerance of juvenile Litopenaeus vannamei (Boone) Pacific white shrimp. Best overall shrimp performance was observed for animals fed with Treatment 1 (B+Bs); additionally, stress tolerance and hemolymph metabolites also showed the best performance in this treatment. SBM-CHO basal feed not supplemented with probiotic strains (B) presented smaller growth and lower feed conversion ratio (FCR). Shrimps fed with the fishmeal commercial feed (C) presented the lowest stress tolerance to high ammonia and low oxygen levels. Specifically selected B. subtilis strains are recommended to formulate functional and economical feeds containing high levels of vegetable; protein and carbohydrates as main dietary sources in L. vannamei cultures.

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Effectiveness of sinbiotic at different doses in Pacific white shrimp pond culture

Jurnal Akuakultur Indonesia ◽

10.19027/jai.14.1-8 ◽

2015 ◽

Vol 14 (1) ◽

pp. 1

Author(s):

, Sukenda ◽

Rizki Praseto ◽

, Widanarni

Keyword(s):

Litopenaeus Vannamei ◽

Culture System ◽

Pacific White Shrimp ◽

White Shrimp ◽

Control Treatment ◽

Intensive Culture ◽

Feed Conversion ◽

Ratio Size ◽

Increasing Demand ◽

And Control

ABSTRACT The increasing demand of white shrimp Litopenaeus vannamei requires the application of intensive culture system. However, intensive culture system of white shrimp could increase the risk of disease outbreak. The application of sinbiotic may provide solution to the problem. This study was aimed to evaluate the effectiveness of the use of technical sinbiotic on the survival and growth of white shrimp in ponds. This study consisted of four treatments; treatment K (control), treatment A (probiotic 0.5% and prebiotic 1%), treatment B (probiotic 1% and prebiotic 2%), and treatment C (probiotic 2% and prebiotic 4%). The results showed that administration of sinbiotic had no significant differences on survival rate, growth rate, feed conversion ratio, size, and biomass of shrimp (P>0.05). However, based on analysis of business, sinbiotic A provided higher profits to the farmer (Rp10.230) compared to other symbiotic treatments and control. Keywords: Litopenaeus vannamei, sinbiotic, technical media ABSTRAK Permintaan terhadap udang vaname Litopenaeus vannamei yang semakin meningkat membuat sistem budidaya udang sebaiknya menggunakan sistem budidaya intensif. Namun demikian sistem intensif pada budidaya udang vaname dapat meningkatkan risiko timbulnya penyakit. Penggunaan sinbiotik diharapkan dapat memberikan solusi dalam mengatasi masalah tersebut. Penelitian ini bertujuan untuk menguji efektivitas penggunaan sinbiotik teknis terhadap sintasan, pertumbuhan, dan keuntungan usaha udang vaname yang dipelihara di tambak. Penelitian ini terdiri atas empat perlakuan, yaitu perlakuan K (kontrol), perlakuan A (probiotik 0,5% dan prebiotik 1%), perlakuan B (probiotik 1% dan prebiotik 2%), dan perlakuan C (probiotik 2% dan prebiotik 4%). Hasil penelitian menunjukkan bahwa pemberian sinbiotik tidak berbeda nyata dalam nilai sintasan, laju pertumbuhan, rasio konversi pakan, size, dan biomassa udang (P>0,05). Namun demikian, berdasarkan analisis usaha perlakuan A memberikan keuntungan lebih tinggi (Rp10.230) dibandingkan dengan perlakuan sinbiotik lainnya serta kontrol. Kata kunci: Litopenaeus vannamei, sinbiotik, media teknis

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Effect of a Black Soldier Fly Ingredient on the Growth Performance and Disease Resistance of Juvenile Pacific White Shrimp (Litopenaeus vannamei)

Animals ◽

10.3390/ani11051450 ◽

2021 ◽

Vol 11 (5) ◽

pp. 1450

Author(s):

Andrew Richardson ◽

João Dantas-Lima ◽

Maxime Lefranc ◽

Maye Walraven

Keyword(s):

Disease Resistance ◽

Growth Performance ◽

Litopenaeus Vannamei ◽

Control Diet ◽

Pacific White Shrimp ◽

White Shrimp ◽

Feed Conversion ◽

Black Soldier Fly ◽

Health Performance ◽

Growth Trial

This study was performed as part of developing a functional feed ingredient for juvenile Pacific white shrimp (Litopenaeus vannamei). Here we assess the effects of dietary inclusion of a Black Soldier Fly Ingredient (BSFI) from defatted black soldier fly (Hermetia illucens) larvae meal on growth performance, tolerance to salinity stress, and disease resistance when challenged with Vibrio parahaemolyticus or a strain of white spot syndrome virus (WSSV). A control diet was used for comparison with three test diets including 4.5, 7.5, and 10.5% of BSFI (BSFI4.5, BSFI7.5, and BSFI10.5). After 28 days, all diets with BSFI had improved weight gain, feed conversion ratio (FCR) and specific growth rate (SGR) compared to control. Indeed, SGR was significantly improved from inclusion of 4.5% in the diet, whilst FCR was significantly improved at 7.5% (p < 0.05). During the growth trial, survival was not affected by diet. Shrimp health performance was not significantly affected by the diets across the disease and salinity challenges. Overall, the results indicate that the inclusion of BSFI from H. illucens improves the performance of juvenile L. vannamei.

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