scholarly journals The Effect of Dosage Combination and Feeding Frequency on Growth and Survival Rate of Vannamei Shrimp Juveniles in Ponds

2019 ◽  
Vol 370 ◽  
pp. 012033
Author(s):  
Z Zainuddin ◽  
S Aslamyah ◽  
K Nur ◽  
Hadijah
Keyword(s):  
Survival Rate ◽  
Feeding Frequency ◽  
Growth And Survival

NATURAL FEEDING OF SLUDGE WORMS (Tubifex sp.) WITH DIFFERENT FEEDING RATE ON GROWTH AND SURVIVAL RATE OF CTENOPOMA (Ctenopoma acutirostre) FISH SEEDS

2019 ◽  
Vol 5 (2) ◽  
Author(s):  
Muhammad Atilah Setiawan ◽  
Muarif Muarif ◽  
Fia Sri Mumpuni
Keyword(s):  
Survival Rate ◽  
Feeding Rate ◽  
Specific Growth ◽  
Feeding Frequency ◽  
Initial Weight ◽  
Growth And Survival ◽  
Randomized Design ◽  
Absolute Length ◽  
Test Fish ◽  
Completely Randomized Design

The aim of this study was to determine the growth and survival rate of Ctenopoma fish seeds. This study used a completely randomized design with 3 treatments and 3 replications. The treatment in this study was a different feeding rate using natural feed of Tubifex sp  namely A (8%), B (10%), and C (12%) ). The test fish used was Ctenopoma fish seeds with an initial length of 2.40 ± 0.10 cm and an initial weight of 0.32 ± 0.05 g. Fish seeds are cultivated  for 28 days with feeding frequency twice a day. The results of research showed that the use of different feeding rate had an significantly different (P<0.05) on the specific growth  rate and absolute length growth with the best results in the treatment C. The survival rate was not significantly different between treatments (P>0.05). Key Words: Ctenopoma, feeding rate, growth, survival rate 

Effect of Feeding Frequency on Growth and Survival Rate of Clarias gariepinus Fingerlings Reared in Plastic Bowls

2014 ◽  
Vol 9 (5) ◽  
pp. 425-429 ◽  
Author(s):  
F.P. Asuwaju ◽  
V.O. Onyeche ◽  
K.E. Ogbuebunu ◽  
H.F. Moradun ◽  
E.A. Robert
Keyword(s):  
Survival Rate ◽  
Clarias Gariepinus ◽  
Feeding Frequency ◽  
Growth And Survival ◽  
Effect Of Feeding

scholarly journals DIFFERENT PERCENTAGE OF WATER EXCHANGE ON GROWTH OF CORAL TROUT GROUPER FINGERLING (Plectropomus leopardus)

2010 ◽  
Vol 2 (2) ◽  
Author(s):  
Titiek Aslianti
Keyword(s):  
Body Weight ◽  
Survival Rate ◽  
Water Exchange ◽  
Feeding Frequency ◽  
Growth And Survival ◽  
Coral Trout ◽  
Survival And Growth ◽  
Plectropomus Leopardus ◽  
The One ◽  
Net Cages

Coral trout grouper (Plectropomus leopardus) is the prospective aquaculture commodities with a high demand. Fingerling culture is the one of shortly rearing time methods for grow out in net-cages in order to produce continuously. Two hundred fishes with initial total length 16.6±0.5 cm and 72.2±7.6 g of body weight were stocked in each of three of concrete tanks of 4m3 seawater. Water replace as a treatment was applied i.e. A (200%/day), B (300%/day) and C (400%/day).respectively. Feeding frequency of pellet was done twice a day of about 3 - 5% of body weight. Survival and growth of fishes were monitored during two-month period. The result showed that the different percentage of water replace had a significant role in increasing the growth and survival rate of the fishes. Water replaced of 400% daily (treatment C) gave the best survival rate (97%) and growth performance (TL 21.61±0,54 cm; BW 156.84±1.05 g). In contrast, the treatment B (300%/day) and A (200%/day) resulted in a lower survival and growth , i.e. (SR 95.5%; TL 19.51±0.52 cm; BW 140.96±0.08 g) and A (SR 93%; TL 19.08±0.30 cm; BW 132.2±2.65 g)., respectively.Keywords: Coral trout grouper, growth, survival rate, water exchange

ẢNH HƯỞNG CỦA MẬT ĐỘ VÀ TẦN SUẤT CHO ĂN ĐẾN HIỆU QUẢ ƯƠNG GIỐNG VÀ STRESS Ở CÁ LEO – Wallago attu (Bloch & Schneider, 1801)

2021 ◽  
Vol 5 (3) ◽  
pp. 2633-2644
Author(s):  
Võ Đức Nghĩa ◽  
Nguyễn Đức Thành ◽  
Lê Thị Thu An ◽  
Phan Thanh Hiệp ◽  
Nguyễn Văn Huy
Keyword(s):  
Survival Rate ◽  
Negative Relationship ◽  
Stocking Density ◽  
Cortisol Concentration ◽  
Larval Rearing ◽  
Feeding Frequency ◽  
Growth And Survival ◽  
Larval Stages ◽  
Wallago Attu ◽  
Stress Levels

Nhằm xác định ảnh hưởng của mật độ và tần suất cho ăn đến sinh trưởng và tỉ lệ sống cá Leo Wallago attu giai đoạn ương giống, thí nghiệm được tiến hành với 5 mức mật độ (1, 2, 4, 8 và 16 con/L) và các tần suất cho ăn (1, 2, 3, 4 và 5 lần/ngày). Kết quả nghiên cứu cho thấy mật độ ương và tần suất cho ăn đã ảnh hưởng có ý nghĩa thống kê đến tỉ lệ sống của cá thí nghiệm. Tỉ lệ sống của cá giảm ở mật độ ương nuôi cao (p<0,05). Tỉ lệ ăn thịt đồng loại giảm ở các nghiệm thức mật độ nuôi thấp. Tần suất cho cá ăn có tương quan thuận với tỉ lệ sống, tỉ lệ sống của cá tăng trên 50% khi tăng số lần cho ăn lên 3 – 5 ngày/lần. Tỉ lệ ăn thịt đồng loại của cá có mối tương quan nghịch với tần suất cho ăn. Nồng độ cortisol trong máu cá được xem như chỉ thị đối với mức độ stress của cá.  Kết quả của nghiên cứu này cho thấy rằng nồng độ cortisol của cá Leo ở mật độ nuôi cao và tần suất cho ăn 1 và 2 lần/ngày cao hơn so với những nghiệm thức còn lại. Do vậy, mức độ stress của cá Leo có thể được xem như một trong những yếu tố chính dẫn đến hiện tượng ăn thịt lẫn nhau và làm giảm tỉ lệ sống đối với loài cá này ở giai đoạn giống. Những kết quả của nghiên cứu này có thể cung cấp thông tin hữu ích nhằm nâng cao hiệu quả của việc ương nuôi cá Leo giống thông qua quản lý mật độ nuôi và tần suất cho ăn. ABSTRACT In order to elucidate the effects of stocking density and feeding frequency on the growth and survival of Wallago attu, post-hatch larvae were stocked at different densities (1, 2, 4, 8 and 16 individuals per liter) and fed with (1, 2, 3, 4 and 5-times per day). The results indicate that stocking density and feeding frequency had significant influences on the survival rate of the larvae (p<0.05). In particular, the survival rate of larvae decreased at trials with high stocking density (p<0.05) due to the cannibalism. The percentage of cannibalism decreased in treatments with low stocking densities. Regarding effects of feeding frequency, the proportionality between the survival rate of larvae and high feeding frequency was observed in this study (p<0.05). The survival rate of larvae reached 50% when fish were fed 3 -5 times per day. The cannibalism had negative relationship with frequency of daily feeding. The cortisol concentration in fish blood is considered as an indicator of stress levels of fish. The results of this study indicated that cortisol concentration of W. attu reared at high stocking density and fed 1-2 times/day was higher than that in other treatments. Therefore, stress levels of W. attu could be one of the main factors causing cannibalism and reduction of survival rate at larval stages. This study provided useful information to enhance the effectiveness of larval rearing of W. attu via controlling stocking density and feeding frequency.  

scholarly journals DIFFERENT PERCENTAGE OF WATER EXCHANGE ON GROWTH OF CORAL TROUT GROUPER FINGERLING (Plectropomus leopardus)

2010 ◽  
Vol 2 (2) ◽  
Author(s):  
Titiek Aslianti
Keyword(s):  
Body Weight ◽  
Survival Rate ◽  
Water Exchange ◽  
Feeding Frequency ◽  
Growth And Survival ◽  
Coral Trout ◽  
Survival And Growth ◽  
Plectropomus Leopardus ◽  
The One ◽  
Net Cages

<p>Coral trout grouper (Plectropomus leopardus) is the prospective aquaculture commodities with a high demand. Fingerling culture is the one of shortly rearing time methods for grow out in net-cages in order to produce continuously. Two hundred fishes with initial total length 16.6±0.5 cm and 72.2±7.6 g of body weight were stocked in each of three of concrete tanks of 4m3 seawater. Water replace as a treatment was applied i.e. A (200%/day), B (300%/day) and C (400%/day).respectively. Feeding frequency of pellet was done twice a day of about 3 - 5% of body weight. Survival and growth of fishes were monitored during two-month period. The result showed that the different percentage of water replace had a significant role in increasing the growth and survival rate of the fishes. Water replaced of 400% daily (treatment C) gave the best survival rate (97%) and growth performance (TL 21.61±0,54 cm; BW 156.84±1.05 g). In contrast, the treatment B (300%/day) and A (200%/day) resulted in a lower survival and growth , i.e. (SR 95.5%; TL 19.51±0.52 cm; BW 140.96±0.08 g) and A (SR 93%; TL 19.08±0.30 cm; BW 132.2±2.65 g)., respectively.</p><p>Keywords: Coral trout grouper, growth, survival rate, water exchange</p>

GROWTH AND SURVIVAL RATE OF GOLDEN TREVALLY, Gnathannodon Speciosus Forsskal WITH DIFFERENT LENGTH SIZE

2013 ◽  
Vol 5 (2) ◽  
Author(s):  
Anak Agung Alit
Keyword(s):  
Growth Rate ◽  
Survival Rate ◽  
Ornamental Fish ◽  
Feeding Frequency ◽  
Commercial Fish ◽  
Growth And Survival ◽  
Quality Of Water ◽  
Fish Samples ◽  
Cultured Fish

Golden travelly is a type of fish that can live on the surface, belongs to Carangidae family, for a length of 5-8 cm can function as marine ornamental fish with the name of yellow crime or yellow samba, and can be  used for consumption. The study was conducted to determine the effect of length on the initial stocking of fish seed to the growth and survival rate of golden travelly. Fish samples were cultured fish golden travelly of 45 days old hatchery and stocked with density of 300 pc/tank in 9 tanks with volume of 1 m³ feber/tanks. Golden travelly were fed with commercial fish by feeding frequency of 3 times/day untill satiation. The tested treatments were based on initial different lengths i.e., treatment A (1.5 to 2.0 cm/pc), B (2.5 to 3.0 cm/pc), and C (3.5 to 4,0 cm/pc). Feeding was based on 10-15 % of body weight. Measured variables were body length growth, survival rate, and quality of water. Growth and survival rate were analysed using analyses of variance (ANOVA). The results showed that the growth rate of fish golden travelly Gnathannodon speciosus Forsskal was best at treatment B (2.5 to 3.0 cm/pc) with 7% per day and 92% survival rate. Keywords: fish seed golden trevally, tanks , growth, and survival.

scholarly journals GROWTH AND SURVIVAL RATE OF GOLDEN TREVALLY, Gnathannodon Speciosus Forsskal WITH DIFFERENT LENGTH SIZE

2013 ◽  
Vol 5 (2) ◽  
Author(s):  
Anak Agung Alit
Keyword(s):  
Growth Rate ◽  
Survival Rate ◽  
Ornamental Fish ◽  
Feeding Frequency ◽  
Commercial Fish ◽  
Growth And Survival ◽  
Quality Of Water ◽  
Fish Samples ◽  
Cultured Fish

<p>Golden travelly is a type of fish that can live on the surface, belongs to Carangidae family, for a length of 5-8 cm can function as marine ornamental fish with the name of yellow crime or yellow samba, and can be  used for consumption. The study was conducted to determine the effect of length on the initial stocking of fish seed to the growth and survival rate of golden travelly. Fish samples were cultured fish golden travelly of 45 days old hatchery and stocked with density of 300 pc/tank in 9 tanks with volume of 1 m³ feber/tanks. Golden travelly were fed with commercial fish by feeding frequency of 3 times/day untill satiation. The tested treatments were based on initial different lengths i.e., treatment A (1.5 to 2.0 cm/pc), B (2.5 to 3.0 cm/pc), and C (3.5 to 4,0 cm/pc). Feeding was based on 10-15 % of body weight. Measured variables were body length growth, survival rate, and quality of water. Growth and survival rate were analysed using analyses of variance (ANOVA). The results showed that the growth rate of fish golden travelly <span style="text-decoration: underline;">Gnathannodon</span> <span style="text-decoration: underline;">speciosus</span> Forsskal was best at treatment B (2.5 to 3.0 cm/pc) with 7% per day and 92% survival rate.</p> <p>Keywords: fish seed golden trevally, tanks , growth, and survival.</p>

PREFERENSI PENEMPELAN, PERTUMBUHAN, DAN SINTASAN LARVA TERIPANG PASIR, Holothuria scabra PADA SUBSTRAT LAMUN YANG BERBEDA

2017 ◽  
Vol 11 (3) ◽  
pp. 249
Author(s):  
Lisa Fajar Indriana ◽  
Yuli Afrianti ◽  
Sitti Hilyana ◽  
Muhammad Firdaus Firdaus
Keyword(s):  
Survival Rate ◽  
Economic Value ◽  
Growth And Survival ◽  
Holothuria Scabra ◽  
Enhalus Acoroides ◽  
Randomized Design ◽  
Settlement Substrate ◽  
Cymodocea Rotundata ◽  
Syringodium Isoetifolium ◽  
Cymodocea Serrulata

Teripang pasir, Holothuria scabra merupakan komoditas hasil laut yang bernilai ekonomis tinggi. Penangkapan berlebihan stok di alam mendorong berkembangnya kegiatan budidaya. Penempelan merupakan fase kritis pada larva teripang karena terjadi peralihan sifat planktonis ke bentik yang memerlukan substrat. Penelitian ini bertujuan untuk mengetahui preferensi penempelan, pertumbuhan, dan sintasan larva H. scabra fase penempelan pada substrat lamun yang berbeda. Penelitian menggunakan metode rancangan acak lengkap dengan perlakuan empat jenis daun lamun berbeda dan lima ulangan. Perlakuan terdiri atas Enhalus acoroides (L-1), Syringodium isoetifolium (L-2), Cymodocea serrulata (L-3), dan Cymodocea rotundata (L-4). Jumlah awal larva sebanyak 1.000 individu dan substrat dirangkai dengan luasan yang sama sebesar 12 cm x 17 cm untuk setiap unit penelitian. Hasil penelitian menunjukkan jenis lamun yang digunakan sebagai substrat berpengaruh secara nyata terhadap preferensi penempelan dan sintasan larva teripang pasir, namun tidak berpengaruh terhadap pertumbuhan. E. acoroides menunjukkan hasil terbaik dengan preferensi penempelan 0,26 ind. cm-2 dan sintasan 10,66%; sehingga layak digunakan sebagai substrat penempelan dalam pembenihan teripang pasir, H. scabra.Holothuria scabra larvae on different seagrass substrates. By: Lisa Fajar Indriana, Yuli Afrianti, Sitti Hilyana, and Muhammad FirdausSandfish Holothuria scabra is marine commodities with a high economic value. Overfishing of natural stocks has compelled an interest to begin aquaculture practice. Settlement is a critical phase for the planktonic larvae as they will transform to benthic form in the presence of substrate. This study aims to evaluate the settlement preferences, growth, and survival rate of H. scabra larvae settled on different seagrass leaves. The research was conducted using the Completely randomized design with four different species of seagrass leaves and five replications. The treatments consist of Enhalus acoroides (L-1), Syringodium isoetifolium (L-2), Cymodocea serrulata (L-3), and Cymodocea rotundata (L-4). Initial number of larvae was 1,000 individuals and the substrate was set with same widthof 12 cm x 17 cm for each unit. Results of the experiment indicated that settlement preference and survival rate of H. scabra larvae was significantly affected by seagrass used as substrate while no significantly differences was observed for growth of larvae. E. acoroides showed the best result with 0.26 ind. cm-2 settelement preference and 10.66% survival rate, so that suitable to be used as settlement substrate in H. scabra hatchery.

scholarly journals Effects of Feed Mixed with Lactic Acid Bacteria and Carbon, Nitrogen, Phosphorus Supplied to the Water on the Growth and Survival Rate of White Leg Shrimp (Penaeus vannamei) Infected with Acute Hepatopancreatic Necrosis Disease Caused by Vibrio parahaemolyticus

Biology ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 280
Author(s):  
Linh Nguyen Thi Truc ◽  
Tuu Nguyen Thanh ◽  
To Tran Thi Hong ◽  
Day Pham Van ◽  
Minh Vo Thi Tuyet ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Survival Rate ◽  
Lactic Acid Bacteria ◽  
Vibrio Parahaemolyticus ◽  
Control Group ◽  
Penaeus Vannamei ◽  
Growth And Survival ◽  
Acute Hepatopancreatic Necrosis Disease ◽  
Nitrogen Phosphorus ◽  
Shrimp Health

This study aimed to evaluate the growth, survival rate, and resistance to acute hepatopancreatic necrosis disease (AHPND) of white leg shrimp (Penaeus vannamei) by using Lactobacillus plantarum, Lactobacillus fermentum, and Pediococcus pentosaceus mixed with feed, and at the same time supplying CNP in a ratio of 15:1:0.1 to the water. As a result, the treatments that shrimp were fed with feed containing lactic acid bacteria (LAB), especially L. plantarum, have increased shrimp growth, total hemocyte cells, granulocyte cells, and hyaline cells significantly (p < 0.05) in comparison to the control group. The supply of CNP to the water has promoted the intensity of V. parahaemolyticus effects on shrimp health and significantly decreased total hemocyte cells, granulocyte cells, and hyaline cells by 30–50% in the period after three days of the challenge, except in L. plantarum treatment, which had only a 20% decrease compared to other treatments. In CNP supplying treatments, the AHPND infected rate and mortality of shrimp were higher than those in other treatments. In summary, the supply of CNP had significantly reduced the shrimp’s immune response and promoted the susceptibility of shrimp to AHPND in both cases of use with and without LAB-containing diets.

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