scholarly journals Alternate livelihood development for ‘Aila’ affected tribal people through aquaculture in Bali Island of the Sunderban, West Bengal, India

2017 ◽  
Vol 64 ◽  
Author(s):  
P. P. Chakrabarti ◽  
A. Ghosh ◽  
B. C. Mohapatra ◽  
N. K. Barik ◽  
A. Das ◽  
...  
Keyword(s):  
Heterotrophic Bacteria ◽  
C:N Ratio ◽  
Pacific White Shrimp ◽  
White Shrimp ◽  
Control Group ◽  
Natural Food ◽  
Feed Conversion ◽  
Percentage Mortality ◽  
Cumulative Percentage

The concept of “biofloc technology” is changing the facet of intensive aquaculture with scope to attain high productivity in a sustainable manner. In biofloc, dense heterotrophic bacterial community is developed through C:N ratio manipulation, where the system becomes bacterial dominated rather than algae dominated and takes care of the wastes generated through in situ bioremediation. Protein is utilised in two ways; as feed for the shrimp and as microbial floc when the heterotrophic microbes convert the nitrogenous wastes into protein. It also promises a healthy rearing system, which is increasingly identified as one possible solution for disease problems especially those striking at early stages. The purpose of this study was to evaluate the effect of biofloc and periphyton technology (BPT) on the growth and immunomodulatory performance of Pacific white shrimp Penaeus vannamei during nursery and grow-out culture. The experimental BPT treatments with three tier substrate system with molasses as carbohydrate (CHO) source were compared with the conventional autotrophic system. The immunomodulation and cumulative percentage mortality upon challenge with pathogenic strain of Vibrio parahaemolyticus were assessed in the reared animals. We have successfully demonstrated the BPT based nursery and growout systems for P. vannamei with the advantage of providing significantly (p<0.05) better growth (27.6% improvement in average body weight, ABW) and feed utilisation (31% improvement in feed conversion ratio, FCR). A production level of 4-4.5 kg m-3 of water was achieved through this BPT system registering a significant improvement over the conventional system (p<0.05). The cumulative percentage mortality following pathogen challenge was significantly lower (p<0.05) in the biofloc grown shrimps compared to that of the control group, thus showing better resistance to pathogenic challenge. Furthermore, the biofloc reared shrimp did exhibit significant improvement in non-specific immune response in terms of serum phenoloxidase activity and total haemocyte counts possibly suggesting potential immunostimulatory role of the biofloc associated heterotrophic bacteria. This eco-based technology as revealed through our studies brings substantial improvement in productivity, minimising water requirement, recycling in situ nutrients and organic matter in turn improving farm biosecurity, augmentation of natural food, improvement of FCR and better health of the cultured shrimp.

scholarly journals Biofloc based technology evaluation for nutrient dense culture system for nursery and grow-out farming of Pacific white shrimp Penaeus vannamei Boone, 1931

2017 ◽  
Vol 64 ◽  
Author(s):  
A. Panigrahi ◽  
M. Sundaram ◽  
J. Jebha ◽  
J. Syamadayal ◽  
S. K. Otta ◽  
...  
Keyword(s):  
Heterotrophic Bacteria ◽  
C:N Ratio ◽  
Pacific White Shrimp ◽  
White Shrimp ◽  
Control Group ◽  
Natural Food ◽  
Penaeus Vannamei ◽  
Percentage Mortality ◽  
Cumulative Percentage

The concept of “biofloc technology” is changing the facet of intensive aquaculture with scope to attain high productivity in a sustainable manner. In biofloc, dense heterotrophic bacterial community is developed through C:N ratio manipulation, where the system becomes bacterial dominated rather than algae dominated and takes care of the wastes generated through in situ bioremediation. Protein is utilised in two ways; as feed for the shrimp and as microbial floc when the heterotrophic microbes convert the nitrogenous wastes into protein. It also promises a healthy rearing system, which is increasingly identified as one possible solution for disease problems especially those striking at early stages. The purpose of this study was to evaluate the effect of biofloc and periphyton technology (BPT) on the growth and immunomodulatory performance of Pacific white shrimp Penaeus vannamei during nursery and grow-out culture. The experimental BPT treatments with three tier substrate system with molasses as carbohydrate (CHO) source were compared with the conventional autotrophic system. Theimmunomodulation and cumulative percentage mortality upon challenge with pathogenic strain of Vibrio parahaemolyticus were assessed in the reared animals. We have successfully demonstrated the BPT based nursery and grow-out systems for P. vannamei with the advantage of providing significantly (p<0.05) better growth performance (27.6% improvement inaverage body weight, ABW) and feed utilisation (31% improvement in feed conversion ratio, FCR). A production level of 4-4.5 kg m-3 of water was achieved through this BPT system registering a significant improvement over the conventional system (p<0.05). The Cumulative percentage mortality following pathogen challenge was significantly lower (p<0.05) in the biofloc grown shrimps compared to that of the control group, thus showing better resistance to pathogenic challenge. Furthermore, the biofloc reared shrimp did exhibit significant improvement in non-specific immune response in terms of serum phenoloxidase activity and total haemocyte counts possibly suggesting potential immunostimulatory role of the biofloc associated heterotrophic bacteria. This eco-based technology as revealed through our studies brings substantial improvement in productivity, minimising water requirement, recycling in situ nutrients and organic matter in turn improvingfarm biosecurity, augmentation of natural food, improvement of FCR and better health of the cultured shrimp.

scholarly journals The digestibility of biofloc meal from African catfish culture medium as a feed raw material for Pacific white shrimp

2019 ◽  
Vol 18 (1) ◽  
pp. 1-8 ◽  
Author(s):  
Julie Ekasari ◽  
Muhammad Agus Suprayudi ◽  
Putri Elas ◽  
Reza Karunia Senja
Keyword(s):  
Litopenaeus Vannamei ◽  
Dry Matter ◽  
Control Diet ◽  
Basal Diet ◽  
Pacific White Shrimp ◽  
Raw Material ◽  
White Shrimp ◽  
African Catfish ◽  
Feed Conversion ◽  
Dry Matter Digestibility

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 

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 Replacing Fish Meal with Defatted Insect Meal (Yellow Mealworm Tenebrio molitor) Improves the Growth and Immunity of Pacific White Shrimp (Litopenaeus vannamei)

Animals ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 258 ◽  
Author(s):  
Constant Motte ◽  
Alfredo Rios ◽  
Thomas Lefebvre ◽  
Hong Do ◽  
Morgane Henry ◽  
...  
Keyword(s):  
Pathogenic Bacteria ◽  
Fish Meal ◽  
Control Diet ◽  
Group Versus ◽  
Tenebrio Molitor ◽  
Pacific White Shrimp ◽  
White Shrimp ◽  
Feed Conversion ◽  
Feeding Trial ◽  
Yellow Mealworm

Recently, ecological and economic issues have affected fish meal (FM) supply, the main source of protein for shrimp. This triggered a search for alternative dietary protein sources for shrimp production. We studied the consequences of replacing FM with a defatted insect meal, ŸnMealTM (YM), comprised of yellow mealworm (Tenebrio molitor). Growth and immune parameters of juvenile Pacific white shrimp (Litopenaeus vannanmei) were compared after an eight-week feeding trial. Shrimp were kept in aquaria with densities of 60 and 40 shrimp/m2 and fed one of five diets in which a proportion of FM was replaced by YM. All diets were isoproteic, isoenergetic, and balanced in lysine and methionine. After the feeding trial, shrimp were challenged with pathogenic bacteria (Vibrio parahaemolyticus). Growth and feed conversion parameters improved when YM was included in shrimp diets; with the highest weight gain and best food conversion ratio (FCR) achieved when 50% of FM was replaced by YM versus the control diet that contained no YM (initial weight: 1.60 g/shrimp; growth: 5.27 vs. 3.94 g/shrimp; FCR 1.20 vs. 1.59). In challenged shrimp, mortality rates were significantly less among groups that received YM, with a 76.9% lower mortality rate in the 50% FM replacement group versus the control.

Use of Cold Atmospheric Plasma To Preserve the Quality of White Shrimp (Litopenaeus vannamei)

2019 ◽  
Vol 82 (7) ◽  
pp. 1217-1223 ◽  
Author(s):  
DE ANGELIS de SOUZA SILVA ◽  
MARIA CARLA da SILVA CAMPELO ◽  
LUCAS de OLIVEIRA SOARES REBOUÇAS ◽  
JUSSIER de OLIVEIRA VITORIANO ◽  
CLODOMIRO ALVES ◽  
...  
Keyword(s):  
Shelf Life ◽  
Litopenaeus Vannamei ◽  
Cold Plasma ◽  
Bacterial Load ◽  
Pacific White Shrimp ◽  
Atmospheric Plasma ◽  
White Shrimp ◽  
Enzymatic Oxidation ◽  
Economic Losses ◽  
Control Group

ABSTRACT The enzymatic oxidation process that causes black spots on shrimp, named melanosis, leads to spoilage and economic losses. Therefore, there is an urgent need for strategies to reduce melanosis in the food industry. Cold plasma is an emerging nonthermal food processing technology. This work explores a novel application of cold plasma for the preservation of shrimp quality. This study aimed to evaluate the effects of cold plasma on the quality attributes of Pacific white shrimp (Litopenaeus vannamei). The shrimp samples were divided in two groups: the control group and the plasma group. Samples were exposed to nonthermal plasma for 10 min at a frequency of 500 Hz. Microbiological assays, including total counts of mesophilic and psychrotrophic bacteria, Staphylococcus spp., and Salmonella sp., were performed along with investigations of physicochemical parameters, such as pH, color, water-holding capacity, cooking loss, and shear force. In addition, sensory (quality index method) tests were conducted. The plasma group exhibited a shelf life of 14.07 days, while the control group exhibited a shelf life of 9.78 days. The experimental protocol used in this study was not enough to obtain significant reduction in the bacterial load. However, treatment with the cold plasma contributed to improving the physicochemical properties during storage. HIGHLIGHTS

scholarly journals Limosilactobacillus fermentum SWP-AFFS02 Improves the Growth and Survival Rate of White Shrimp via Regulating Immunity and Intestinal Microbiota

Fermentation ◽  
2021 ◽  
Vol 7 (3) ◽  
pp. 179
Author(s):  
Bao-Hong Lee ◽  
Wei-Hsuan Hsu ◽  
You-Zuo Chen ◽  
Kung-Ting Hsu ◽  
Tzu-Ming Pan
Keyword(s):  
Survival Rate ◽  
Intestinal Microbiota ◽  
Pathogenic Bacteria ◽  
Cell Number ◽  
Health Condition ◽  
White Shrimp ◽  
Control Group ◽  
Granular Cells ◽  
Feed Conversion ◽  
Important Species

White shrimp Litopenaeus vannamei is an important species of farmed shrimp. Intestinal bacterial composition and immune activity play important roles in regulating the health condition of shrimp. Lactic acid bacteria Limosilactobacillus fermentum SWP-AFFS02 was isolated from the intestine of sea fish Rachycentron canadum, and the potential of its effect on growth, immunity, and intestinal microbiota of L. vannamei shrimp was investigated. Shrimps received feed with or without the addition of 8 log CFU/g L. fermentum SWP-AFFS02 thrice a day for 8 weeks. After 8-week treatment, weight gain, feed conversion rate, and survival rate of shrimp were greater in the L. fermentum SWP-AFFS02-feed group than in the control group. L. fermentum SWP-AFFS02 treatment increased the number of granular cells and semi-granular cells and decreased hyaline cell number when compared to the control group. L. fermentum SWP-AFFS02 promoted prophenoloxidase (PO) activity through increasing immune-associated gene expression in the hepatopancreas of shrimp. In addition, administration of feed containing L. fermentum SWP-AFFS02 regulated intestinal microbiota via decreasing the ratio of pathogenic bacteria, such as Vibrionaceae and Enterobacteriaceae, in the intestine of shrimp. This study demonstrated that administration of L. fermentum SWP-AFFS02 effectively prevented infection of L. vannamei shrimp by regulating intestinal microbiota and enhancing immunity in shrimp to increase the growth and improve their health status, which acted as a probiotic and provided beneficial effects on shrimp.

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

2016 ◽  
Vol 63 (3) ◽  
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.

scholarly journals Molecular effects of mannanase-hydrolyzed coprameal to intestinal immunity in the Pacific white shrimp (Litopenaeus vannamei)

2021 ◽  
Author(s):  
Wanilada Rungrassamee ◽  
Sopacha Arayamethakorn ◽  
Nitsara Karoonuthaisiri ◽  
Shih-Chu Chen ◽  
Eric Chang ◽  
...  
Keyword(s):  
Immune System ◽  
Litopenaeus Vannamei ◽  
Control Diet ◽  
Pacific White Shrimp ◽  
White Shrimp ◽  
Control Group ◽  
Intestinal Immunity ◽  
Toll Like Receptor ◽  
Transcript Levels ◽  
Significant Difference

AbstractTo mitigate disease outbreak, an alternative approach through enhancing shrimp immunity was explored. Mannan oligosaccharides (MOS) have been previously reported to enhance shrimp immune system. Here, coprameal samples were digested with mannanase to yield MOS, namely, mannanase-hydrolyzed coprameal (MCM) and feasibility of MCM as shrimp immunostimulant in grow-out ponds was determined. Pacific white shrimp (Litopenaeus vannamei) were fed with the commercial diet containing 1% MCM as the MCM-supplemented group and compared to the non-MCM control diet. There was no significant difference in survival rates between the MCM-supplemented and the control groups throughout the 4-month-period of the trial (p > 0.05). Gene expression analysis in shrimp intestines revealed that the transcript levels of antimicrobial peptides (anti-lipopolysaccharide factor isoform 1 (alf1), penaeidin (pen3a) and crustin (crus)) and lysozymes (lyz) were not significantly different in the MCM-supplemented group. Meanwhile, C-type lectin and toll-like receptor transcript levels, whose gene products play roles as pattern recognition proteins, were significantly higher in a group fed with MCM for 2- and 4-month periods than those of the control group (p < 0.05). The increased transcript levels of C-type lectin and toll-like receptor provide evidence for potential implementation of MCM as feed supplement to modulate shrimp immune system.

scholarly journals Lactic acid bacteria used as preservative in fresh feed for marine shrimp maturation

2016 ◽  
Vol 51 (11) ◽  
pp. 1799-1805 ◽  
Author(s):  
Genyess Ribeiro Arthur da Silva Vieira ◽  
◽  
Mariana Soares ◽  
Norha Constanza Bolívar Ramírez ◽  
Delano Dias Schleder ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Lactobacillus Plantarum ◽  
Heterotrophic Bacteria ◽  
Pacific White Shrimp ◽  
White Shrimp ◽  
Bacterial Microbiota ◽  
Marine Shrimp ◽  
Microbiological Analyses ◽  
Vibrio Spp

Abstract The objective of this work was to evaluate the effect of Lactobacillus plantarum on the preservation of fresh mussels and its effect on the attractiveness, consumption, and midgut bacterial microbiota of Pacific white shrimp broodstock. The experiment evaluated mussels stored with L. plantarum at 4ºC. The controls were: mussels stored at -18ºC without L. plantarum; mussels stored at -18ºC with L. plantarum; and mussels stored at 4ºC without L. plantarum. Microbiological analyses on mussels were performed on days 1, 7, 15, 30, 45, and 60 after processing. Additionally, mussels preserved with L. plantarum and stored at 4ºC, and mussels stored at -18ºC without L. plantarum were evaluated after 15 days for attractiveness, consumption, and midgut bacterial microbiota of shrimps. Mussels preserved with L. plantarum showed higher lactic acid bacteria counts and lower counts of Vibrio spp., as well as of total heterotrophic bacteria, after 60 days of storage. No differences were observed for attractiveness or consumption between treatments. The bacterial microbiota of midgut in shrimp fed mussels preserved with L. plantarum showed higher lactic acid bacteria count and lower Vibrio spp. The use of L. plantarum inhibits Vibrio spp. and preserves feed without changing attractiveness or consumption for shrimp.

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