Sustainable Growth and Survival of Litopenaeus Vannamei Through Wastewater Recycling

2020 ◽  
pp. 77-84
Author(s):  
K. Kavitha ◽  
P. V. Krishna
Keyword(s):  
Litopenaeus Vannamei ◽  
Sustainable Growth ◽  
Growth And Survival ◽  
Wastewater Recycling

scholarly journals Effect of Red tilapia (Oreochromis mossambicus × Oreochromis niloticus) on growth and survival of the pacific shrimp (Litopenaeus vannamei) in simultaneous polyculture under marine conditions//Efecto de la tilapia roja (Oreochromis mossambicus × Oreochromis niloticus) en el crecimiento y supervivencia del camarón (Litopenaeus vannamei) en policultivo simultáneo bajo condiciones marinas

Biotecnia ◽  
2020 ◽  
Vol 22 (2) ◽  
pp. 5-12
Author(s):  
Alejandro Mcdonal-Vera ◽  
Wilfrido M. Contreras-Sánchez ◽  
Neil J. Duncan ◽  
Kevin Fitzsimmons ◽  
Maria J. Contreras- García ◽  
...  
Keyword(s):  
Litopenaeus Vannamei ◽  
Oreochromis Niloticus ◽  
Oreochromis Mossambicus ◽  
Pacific White Shrimp ◽  
White Shrimp ◽  
Average Weight ◽  
Growth And Survival ◽  
Red Tilapia ◽  
The Pacific ◽  
The Mean

In the present investigation, we evaluated if the presence of tilapia affects growth and survival of shrimp during pre-growth and grow-out phases. In both experiments, we used a random-blocks design in a single earth pond (0.75 ha) that was prepared and divided into nine (7 x 30 m) enclosures that were considered to be three blocks of three enclosures each. Each randomly stocked block consisted on Pacific white shrimp Litopenaeus vannamei (30 shrimp/m2) and three different densities (0.0, 0.25 and 0.50 fish/m2) of red tilapia hybrids (Oreochromis mossambicus x Oreochromis niloticus) to give three different treatments with three replicates. The results from the pre-growth and grow-out experiments followed the same trend. In both cases, we found no significant statistical differences (P>0.05) in the final average weight of the shrimp. However, the experimental blocks had a significant (P<0.05) effect on the mean sample weight of shrimp. Shrimp in blocks B and C were significantly bigger than shrimp from block A (P<0.05). For both experiments, we found no effect of the presence of tilapias on survival or growth of shrimp.RESUMENEvaluamos si la presencia de tilapias libres afecta el crecimiento y la supervivencia de camarones en fase de preengorda y engorda. Para ambos experimentos, utilizamos un diseño de bloques al azar en un estanque rústico (0.75 ha) que fue preparado y dividido en nueve encierros (7 x 30 m), se formaron tres bloques con tres encierros cada uno. Cada encierro dentro de cada bloque fue aleatoriamente seleccionado para sembrar camarón blanco del Pacífico, Litopenaeus vannamei (30 camarones/m2) y tres diferentes densidades (0.0, 0.25 y 0.50 peces/m2) de híbrido de tilapia roja (Oreochromis mossambicus x Oreochromis niloticus) para formar tres tratamientos con tres réplicas. Los resultados del experimento de pre-engorda y engorda siguieron la misma tendencia. En ambos experimentos no encontramos diferencias estadísticamente en el crecimiento de los camarones ni en las tilapias. Sin embargo, los bloques experimentales presentaron diferencias significativas (P<0.05) en el peso promedio final. Los camarones de los bloques B y C fueron estadísticamente más grandes (P<0.05) que los del bloque A. Para las dos etapas de crecimiento de los camarones, no se observó un efecto de la presencia de tilapias sobre la sobrevivencia o crecimiento de los camarones.

Effect of Vitomolt supplements in feed on growth and survival rate of white shrimp (Litopenaeus vannamei) seeds

2020 ◽  
Vol 10 (11) ◽  
pp. 795-798
Author(s):  
Zainuddin . ◽  
Y. Fujaya ◽  
M.I. Djawad ◽  
S. Aslamyah ◽  
K. Nur ◽  
...  
Keyword(s):  
Survival Rate ◽  
Litopenaeus Vannamei ◽  
White Shrimp ◽  
Growth And Survival

scholarly journals Sustainable Profit versus Unsustainable Growth: Are Venture Capital Investments and Governmental Support Medicines or Poisons?

2020 ◽  
Vol 12 (18) ◽  
pp. 7773
Author(s):  
Moon Young Kang
Keyword(s):  
Venture Capital ◽  
Large Scale ◽  
Academic Research ◽  
Sustainable Growth ◽  
Capital Investments ◽  
Data Accessibility ◽  
Growth And Survival ◽  
Firm Profitability ◽  
Governmental Support ◽  
Venture Capital Investments

Considering that startups greatly contribute to the economic development and survival of a country through economic growth and job creation, it is necessary to investigate the profitability of startups. However, research on this issue has not been developed enough as most previous studies regarding firm profitability were based on large-scale public companies with relatively easy data accessibility, not on startups. In addition, it is meaningful to empirically prove whether venture capital investments and governmental support positively impact on the sustainability of startups as huge discrepancies exist between traditional academic research and recent practices. Findings from this study, based on data analytics, are expected to fill the gap in knowledge as it is not clearly known about firm profitability of startups for their sustainable growth and survival. Focusing on startup profitability, the main objective of this research is to provide significant theoretical contributions and practical guidelines for startup entrepreneurs, investors, and policymakers to avoid unsubstantial growth and find solutions for sustainable growth and survival. To properly and completely analyze the determinants of firm profitability of startups, this research used the 2018 and 2019 Survey of Korean Startups by the Ministry of SMEs and Startups of Korea and Korea Venture Business Association with over 3000 samples.

The Effect of Controlled Soil Sulfur Concentration on Growth and Survival of Litopenaeus vannamei

2007 ◽  
Vol 31 (3) ◽  
pp. 381-389 ◽  
Author(s):  
Gad Ritvo ◽  
Joe B. Dixon ◽  
William H. Neill ◽  
Tzachi M. Samocha ◽  
Addison L. Lawrence
Keyword(s):  
Litopenaeus Vannamei ◽  
Sulfur Concentration ◽  
Growth And Survival ◽  
Soil Sulfur

Genetic parameters for growth and survival traits in Litopenaeus vannamei at different ages

2017 ◽  
Vol 25 (5) ◽  
pp. 1901-1911 ◽  
Author(s):  
Jiachen Zhang ◽  
Fujun Cao ◽  
Jianyong Liu ◽  
Ruipeng Yuan
Keyword(s):  
Litopenaeus Vannamei ◽  
Genetic Parameters ◽  
Growth And Survival ◽  
Different Ages

Doxycycline loaded Fe3O4 based nanocomposites: preparation and evaluation on growth and survival of white leg shrimp (Litopenaeus vannamei)

2019 ◽  
Vol 10 (3) ◽  
pp. 035015
Author(s):  
Ke Son Phan ◽  
Hoai Nam Nguyen ◽  
Thi Tuyet Thuy Vu ◽  
Hai Doan Do ◽  
Thi Thu Huong Le ◽  
...  
Keyword(s):  
Litopenaeus Vannamei ◽  
Growth And Survival ◽  
Preparation And Evaluation

Effect of Low Salinity on Growth and Survival of Postlarvae and Juvenile Litopenaeus vannamei

2001 ◽  
Vol 32 (4) ◽  
pp. 385-392 ◽  
Author(s):  
Susan Laramore ◽  
C. Rolland Laramore ◽  
John Scarpa
Keyword(s):  
Litopenaeus Vannamei ◽  
Growth And Survival ◽  
Low Salinity

scholarly journals Substitution time of natural food by artificial diet on survival rate and growth of pacific white shrimp (Litopenaeus vannamei) postlarvae during rearing in low salinity media

2011 ◽  
Vol 10 (1) ◽  
pp. 38
Author(s):  
Ferdinand Hukama Taqwa ◽  
Daniel Djokosetiyanto ◽  
Ridwan Affandi
Keyword(s):  
Survival Rate ◽  
Litopenaeus Vannamei ◽  
Crude Protein ◽  
Artificial Diet ◽  
Pacific White Shrimp ◽  
White Shrimp ◽  
Natural Food ◽  
Daily Growth ◽  
Growth And Survival ◽  
Low Salinity

<p>This research was conducted to determine natural food substitution time by artificial diet   after salinity acclimatization from 20 ppt until 2 ppt, which can increase survival and growth of (<em>Litopenaeus vannamei</em>) postlarvae during rearing period. Design experiment was completely randomized design with five treatments and three replications of natural food <em>Chironomus</em> sp.  (60% of crude protein) substitution time by artificial diet (40% of crude protein) at day: 1 (A), 7 (B), 14 (C), 21 (D) and full natural food without artificial diet (E) during 28 days rearing period. White shrimp postlarvae and rearing media in this experiment based from best result of earlier research that is PL<sub>25 </sub>from acclimatization in media 2 ppt with addition of potassium 25 ppm to freshwater media.  The densities of PL<sub>25</sub> white shrimp were 20 PLs/50 liters of 2 ppt media. The result of this experiment showed that the use of artificial diet as soon as after salinity acclimatization (PL<sub>25</sub>) gave best performance production compared to which only that was given natural food <em>Chironomus</em> sp. during experiment or with treatment by artificial diet substitution at day-7, day-14 or day-21, shown with the highest value of food consumption level, protein retention, energy retention, daily growth rate and food efficiency. Survival rate of PL<sub>54</sub> was above 80% and not significant different between treatment. That is supported by chemical-physical value of water quality still in range appropriate to survival rate of white shrimp post larvae during a rearing period. The result of this experiment indicated that requirement nutrient of PL<sub>25</sub> in low salinity did not fulfilled if only rely on natural food, so that require artificial diet with nutrition content to support growth and survival rate of white shrimp post larvae more maximal.</p> <p>Key words: salinity, natural food, artificial diet, Pacific white shrimp</p> <p> </p> <p>ABSTRAK</p> <p>Tujuan penelitian ini adalah untuk menentukan waktu penggantian pakan alami oleh pakan buatan yang tepat selama masa pemeliharaan postlarva udang vaname di media bersalinitas rendah setelah melalui masa aklimatisasi penurunan salinitas dari 20 ppt hingga 2 ppt, sehingga dapat meningkatkan pertumbuhan dan kelangsungan hidup. Rancangan percobaan berupa rancangan acak lengkap dengan perlakuan yang diterapkan berupa waktu penggantian pakan alami <em>Chironomus </em>sp. (kadar protein 62%) oleh pakan buatan (kadar protein 40%) pada hari ke-1 (A), ke-7 (B), ke-14 (C), ke-21 (D) dan pakan alami (E) selama masa pemeliharaan. Postlarva udang vaname dan media pemeliharaan yang dipergunakan selama percobaan mengacu pada hasil terbaik yang didapatkan dari penelitian pendahuluan yaitu berupa PL<sub>25 </sub>hasil aklimatisasi di media bersalinitas 2 ppt  dengan penambahan kalium 25 ppm ke media air tawar pengencer. Padat tebar sebanyak 20 ekor/50 liter/wadah. Hasil percobaan menunjukkan bahwa pemberian pakan buatan yang diberikan segera setelah masa aklimatisasi salinitas (pada awal pemeliharaan PL<sub>25</sub>) memberikan performa produksi budidaya terbaik bila dibandingkan dengan yang hanya diberi pakan alami selama masa pemeliharaan maupun waktu penggantian pakan alami oleh pakan buatan pada hari ke-7, ke-14 dan hari ke-21 yang ditunjukkan dengan tingkat konsumsi pakan, retensi protein, retensi energi, laju pertumbuhan harian dan efisiensi pakan yang tertinggi.  Kelangsungan hidup di akhir pemeliharaan (PL<sub>54</sub>)  di atas 80% dan tidak berbeda nyata antar perlakuan. Hal ini ditunjang oleh nilai fisika kimia air yang berada dalam kisaran yang layak selama masa pemeliharaan. Hasil percobaan ini menunjukkan bahwa kebutuhan nutrisi pada stadia PL<sub>25</sub> di media bersalinitas rendah tidak terpenuhi jika hanya mengandalkan pakan alami sehingga perlu ditunjang dari pakan buatan dengankandungan nutrisi yang dapat mendukung pertumbuhan dan kelangsungan hidup yang lebih maksimal.</p> <p>Kata kunci: salinitas, pakan alami, pakan buatan, udang vaname.</p>

scholarly journals Pengaruh Penambahan Asam Amino Lisin pada Pakan Komersil terhadap Efisiensi Pemanfaatan Pakan, Pertumbuhan, dan Kelulushidupan Udang Vaname (Litopenaeus vannamei)

2020 ◽  
Vol 23 (3) ◽  
Author(s):  
Diana Rachmawati ◽  
Sarjito Sarjito ◽  
Panji Yusroni Anwar ◽  
Seto Windarto
Keyword(s):  
Amino Acids ◽  
Survival Rate ◽  
Litopenaeus Vannamei ◽  
Feeding Rate ◽  
Fish Growth ◽  
Growth And Survival ◽  
Feed Cost ◽  
Commercial Feed ◽  
Average Size

Reducing feed cost in the vaname (Litopenaeus vannamei) cultivation can be achieved by increasing quality of commercial feed. To increase the feed quality is by adding lysine amino acid, because lysine is one of the amino acids  that can boost fish growth, in turn it can shorten the cultivation cycle. The objectives of the study were to analyze effects and optimum dosages of lysine addition in the feed on feed efficiency utilization, growth and survival rate of vaname shrimp (L. vannamei). The study used shrimp juveniles with the average size of 3±0,09 g/shrimp.  Test feed in the study was a commercial feed in the form of pellets that was enriched with lysine (L-lysine HCl).  The amount of lysine was appropriated to the treatment dosages, namelys 0%/kg feed (A); 0,75 %/kg feed (B); 1,5%/kg feed (C); 2,25%/kg feed (D) and 3%/kg feed (E). Feeding the shrimp was based on fixed feeding rate as much as 10% of biomass weight per day and given 4 (four) times a day.  The results whow that the addition of lysine in the feed significantly (P<0,01) affected on the SGR, EPP, FCR, and PER; otherwise, it did not significantly affect on the survival rate of vaname shrimp.  Meanwhile, the optimum dosages of lysine amino acids added into the feed were 2,33%, 2,39%, 2,37%, and 2,09% for SGR, EPP, FCR, and PER respectively.  Those dosages resulted in the maxium values of  4,72%/day,  81,35%,  1,23, and 2,57 for SGR, EPP, FCR, and PER respectively.   Penurunan biaya operasional pakan dalam siklus kegiatan budidaya udang vaname (Litopenaeus vannamei) dapat dilakukan dengan meningkatkan kualitas pakan komersial.  Penambahan asam amino lisin pada pakan komersial dilakukan untuk meningkatkan kualitas pakan, dikarena lisin merupakan salah satu asam amino dapat mempercepat pertumbuhan sehingga memperpendek masa produksi kultivan yang dibudidayakan. Tujuan penelitian ini untuk mengkaji pengaruh dan dosis optimum penambahan lisin pada pakan komersil terhadap efisiensi pemanfaatan pakan, pertumbuhan, dan kelulushidupan udang vaname (L. vannamei). Penelitian ini menggunakan juvenile udang vaname berukuran 3±0,09 g/ekor. Pakan uji dalam penelitian ini adalah pakan komersil berbentuk pellet yang ditambahkan lisin (L-lysine HCl) sesuai dosis tiap perlakuan yaitu 0%/kg pakan (A); 0,75 %/kg pakan (B); 1,5%/kg pakan (C); 2,25%/kg pakan (D) dan 3%/kg pakan (E). Pakan uji diberikan dengan metode fix feeding rate sebanyak 10%/bobot biomassa/hari dan frekuensi pakan yang diberikan sebanyak 4 kali sehari. Hasil penelitian menunjukkan bahwa penambahan lisin pada pakan komersial berpengaruh sangat nyata (P<0,01) terhadap SGR, EPP, FCR, dan PER akan tetapi tidak berpengaruh nyata terhadap kelulushidupan udang vaneme. Dosis optimal asam amino lisin dalam pakan komersial udang vaname untuk SGR sebesar 2,33%, EPP sebesar 2,39%, FCR sebesar  2,37% dan PER  sebesar 2,09% menghasilkan SGR maksimal sebesar 4,72%/hari,  EPP maksimal sebesar 81,35%,   FCR maksimal sebesar 1,23, dan  PER maksimal sebesar 2,57.

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