scholarly journals Effects of Salinity on Physiological, Biochemical and Gene Expression Parameters of Black Tiger Shrimp (Penaeus monodon): Potential for Farming in Low-Salinity Environments

Biology ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 1220
Author(s):  
Md. Lifat Rahi ◽  
Khairun Naher Azad ◽  
Maliha Tabassum ◽  
Hasna Hena Irin ◽  
Kazi Sabbir Hossain ◽  
...  
Keyword(s):  
Abiotic Factors ◽  
Penaeus Monodon ◽  
Production Performance ◽  
Growth And Survival ◽  
Factors Affecting ◽  
Black Tiger Shrimp ◽  
Low Salinity ◽  
Tiger Shrimp ◽  
Wide Range ◽  
Salinity Levels

Salinity is one of the most important abiotic factors affecting growth, metabolism, immunity and survival of aquatic species in farming environments. As a euryhaline species, the black tiger shrimp (Penaeus monodon) can tolerate a wide range of salinity levels and is farmed between brackish to marine water conditions. The current study tested the effects of six different salinity levels (0‰, 2.5‰, 5‰, 10‰, 20‰ and 30‰) on the selected physiological, biochemical and genetic markers (individual changes in the expression pattern of selected candidate genes) in the black tiger shrimp. Experimental salinity levels significantly affected growth and survival performance (p < 0.05); the highest levels of growth and survival performance were observed at the control (20‰) salinity. Salinity reductions significantly increased free fatty acid (FFA), but reduced free amino acid (FAA) levels. Lower salinity treatments (0–10‰) significantly reduced hemolymph osmolality levels while 30‰ significantly increased osmolality levels. The five different salinity treatments increased the expression of osmoregulatory and hemolymph regulatory genes by 1.2–8-fold. In contrast, 1.2–1.6-fold lower expression levels were observed at the five salinity treatments for growth (alpha amylase) and immunity (toll-like receptor) genes. O2 consumption, glucose and serotonin levels, and expression of osmoregulatory genes showed rapid increase initially with salinity change, followed by reducing trend and stable patterns from the 5th day to the end. Hemocyte counts, expression of growth and immunity related genes showed initial decreasing trends, followed by an increasing trend and finally stability from 20th day to the end. Results indicate the farming potential of P. monodon at low salinity environments (possibly at freshwater) by proper acclimation prior to stocking with minimal effects on production performance.

scholarly journals Evaluasi penggunaan tepung cangkang rajungan sebagai bahan baku pakan juwana udang windu Penaeus monodon

2016 ◽  
Vol 15 (2) ◽  
pp. 117
Author(s):  
Agus Kurnia ◽  
Wellem H Muskita ◽  
Oce Astuti ◽  
, Asnani ◽  
Wulandari Harahap
Keyword(s):  
Survival Rate ◽  
Fish Meal ◽  
Penaeus Monodon ◽  
Feeding Trial ◽  
Growth And Survival ◽  
Commercial Diet ◽  
Black Tiger Shrimp ◽  
Substitution Level ◽  
Tiger Shrimp ◽  
C 50

<p class="NoParagraphStyle"><strong>ABSTRACT</strong></p><p class="NoParagraphStyle"><strong> </strong></p><p class="NoParagraphStyle">Feeding trial was conducted to determine the optimum dietary level of the crab shell meal (CSM) for replacement of fish meal (FM) for growth and survival rate of black tiger shrimp larvae. The shrimp (initial weight: 0,0134±0,02 g) were fed with six experimental diet for six weeks which were formulated to replace FM protein by with CSM at various substitution levels: diet A (0% CSM substitution level), diet B (25% CSM substitution level), diet C (50% CSM substitution level), diet D (75% CSM substitution level), diet E (100% CSM substitution level), diet F (commercial diet). Results from the feeding trial indicates that the shrimp fed with all treatment diet were not significantly different in weight gain and FCR. However, survival rate on the shrimp fed with diet F was significantly different to the other groups. The present study conclude that CSM could be used as protein ingredient in the diet of monodon shrimp juvenile.</p><p class="NoParagraphStyle"> </p><p class="NoParagraphStyle">Keywords: replacement, crabs shell meal, fish meal, black tiger shrimp, survival rate</p><p class="NoParagraphStyle"> </p><p class="NoParagraphStyle"><strong> </strong></p><p class="NoParagraphStyle"><strong>ABSTRAK</strong><strong></strong></p><p class="NoParagraphStyle"><strong> </strong></p><p class="NoParagraphStyle">Penelitian pakan dilakukan untuk menentukan dosis optimum tepung cangkang rajungan (TCR) untuk mengganti tepung ikan (TI) dalam pakan terhadap pertumbuhan dan kelangsungan hidup larva udang windu. Udang windu (berat awal: 0,00134±0,02 g ) diberi pakan uji selama enam minggu yang diformulasi untuk mengganti TI dengan tingkat persentasi penggantian TCR dengan desain formulasi pakan A (0% substitusi TCR), pakan B (25% substitusi TCR), pakan C (50% substitusi TCR), pakan D (75% substitusi TCR), pakan E (100% substitusi TCR), dan pakan F (pakan komersial) sebagai pakan kontrol. Hasil dari penelitian ini menunjukkan bahwa udang yang diberi pakan untuk semua perlakuan tidak memberikan pengaruh nyata terhadap pertumbuhan dan laju pertumbuhan harian. Akan tetapi kelompok udang yang diberi pakan F berpengaruh nyata terhadap kelangsungan hidup dibanding dengan perlakuan lainnya. Hasil penelitian ini menyimpulkan bahwa tepung cangkang rajungan dapat digunakan sebagai bahan pakan sumber protein dalam pakan juvenile udang windu.</p><p class="NoParagraphStyle"> </p><p>Kata kunci: penggantian bahan, tepung cangkang rajungan, tepung ikan, udang windu</p>

Understanding the host-microbe-environment interactions: Intestinal microbiota and transcriptomes of black tiger shrimp Penaeus monodon at different salinity levels

Aquaculture ◽  
2022 ◽  
Vol 546 ◽  
pp. 737371
Author(s):  
Sage Chaiyapechara ◽  
Tanaporn Uengwetwanit ◽  
Sopacha Arayamethakorn ◽  
Phimsucha Bunphimpapha ◽  
Metavee Phromson ◽  
...  
Keyword(s):  
Intestinal Microbiota ◽  
Penaeus Monodon ◽  
Black Tiger Shrimp ◽  
Tiger Shrimp ◽  
Salinity Levels
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