scholarly journals Effects of stocking density on the growth and breeding performance of broodfish and larval growth and survival of shol, Channa striatus (Bloch)

1970 ◽  
Vol 7 (2) ◽  
pp. 427-432 ◽  
Author(s):  
MFA Mollah ◽  
MSA Mamun ◽  
MN Sarowar ◽  
A Roy
Keyword(s):  
Growth Rate ◽  
Survival Rate ◽  
Silver Carp ◽  
Larval Growth ◽  
Stocking Density ◽  
Breeding Performance ◽  
Female Ratio ◽  
Channa Striatus ◽  
Growth And Survival ◽  
Wooden Frame

Two experiments were conducted with a view to assessing the effects of stocking densities on the growth and breeding performance and larval growth and survival of Channa striatus. The first one was carried out with a view to find a suitable stocking density of Channa striatus at which they could spawn while the second experiment dealt with the effect of stocking density on growth and survival of the produced larvae. The first experiment was carried out in nine equal-sized chambers of raceway separated by netted wooden frame with an area of 1.83 ×1.12m2 each. The effective water depth in each of the raceway chambers was maintained at 1.2m. The broodfish were stocked at 4 (357.22g/m2), 6 (541.78g/m2) and 8 (719.18g/m2) at 1:1 male-female ratio and fed with washed and chopped poultry viscera twice a day and with live silver carp fry twice a week. No significant (P>0.05) difference in weight and specific growth rate was observed among the broodfish reared under different stocking densities during the experimental period of 80 days. The broodfish stocked at a density of 357.22g/m2 and 541.78g/m2 spawned naturally in their respective chambers. The fish stocked at 541.78g/m2 showed the best breeding performance. The second experiment was carried out with 4-5 days old larvae in 9 bowls of 10l capacity divided into three treatments having 20, 40 and 60 larvae each i.e. the stocking density were of 2, 4 and 6 larvae/l respectively. Larvae of treatment I which was stocked with 2 larvae/l showed significantly higher growth rate from the 7th day of the experiment and maintained the same trend up to the end of the experiment (i.e. 21st day) compared to other treatments. Larvae of treatment I also showed significantly higher health condition (13.31±0.69mg/mm) and survival rate (80.00±3.00) compared to those of the other two. Keywords: Stocking density; growth rate; survival rate; breeding performance; Channa striatus. DOI: 10.3329/jbau.v7i2.4756 J. Bangladesh Agril. Univ. 7(2): 427-432, 2009

scholarly journals Effect of Stocking Density on Growth and Survival Rate of Giant Gouramy (Osphrenemus gouramy Lac.) Seed

2009 ◽  
Vol 8 (2) ◽  
pp. 199 ◽  
Author(s):  
S. Sarah ◽  
. Widanarni ◽  
Agus Oman Sudrajat
Keyword(s):  
Growth Rate ◽  
Survival Rate ◽  
Feed Efficiency ◽  
Stocking Density ◽  
Individual Growth ◽  
Daily Growth Rate ◽  
Daily Growth ◽  
Fish Yield ◽  
Growth And Survival ◽  
Individual Growth Rate

<p>This experiment was conducted to study the stocking density effect on growth and survival rate of giant gouramy seed in the aquarium. Fish were stocked at the density of 2.5; 5.0; 7.5 and 10 individual/l with average initial weight and length were 0.013 g and 5.56 mm, respectively. Fish were fed with silkworm (<em>Tubifex</em> sp.) <em>ad libitum</em> in the morning and evening for 22 days of experiment. Aquarium was siphoned and water was changed everyday for maintaining good water quality. Result showed that survival rate remain high in all treatment (93.5 - 95.5%). Increasing stocking density from 2.5 to 10 individual/I did not affect survival rate. On the other hand growth rate and feed efficiency decreased, while fish yield increased. Stocking density of 2,5 individual/l gave  the highest daily growth rate, individual growth rate, growth in length and feed efficiency of 12.94%, 0.0081 g/day, 16.84 mm and 12.51%; respectively. The highest value for fish yield (0,0360 g/l/day) was obtained from stocking density of 10 individual/l</p> <p>Key words: stocking density, seed, survival rate, growth rate, giant gouramy <em>Osphrenemus goramy</em></p> <p> </p> <p>ABSTRAK</p> <p>Keterbatasan pengadaan benih ikan gurame (<em>Osphronemus gourame </em>Lac.) disebabkan oleh tidak seimbangnya jumlah benih yang tersedia dengan kebutuhan usaha pembesaran. Teknik pembenihan yang digunakan sampai saat ini relatif sederhana dengan cara tradisional. Pemeliharaan gurame secara terkontrol di akuarium dapat menjawab tantangan dalam teknologi pembenihan gurame sekaligus sebagai sarana pola budidaya secara bertahap yang sedang berkembang saat ini. Produksi yang tinggi akan dicapai dengan pemeliharaan pada kepadatan yang tinggi. Pada keadaan lingkungan yang baik dan pakan yang mencukupi, peningkatan kepadatan akan disertai dengan peningkatan hasil. Jumlah ikan yang ditebar pada penelitian ini disesuaikan berdasarkan perlakuan yaitu 2,5; 5,0; 7,5 dan 10 ekor/l. Pengamatan terhadap ikan dilakukan sampai hari ke-22. Hasil pengamatan menunjukkan bahwa peningkatan kepadatan 2,5 - 10 ekor/l pada pemeliharaan benih gurame di akuarium mempengaruhi pertumbuhan, hasil dan efisiensi pakan, namun tidak berpengaruh terhadap kelangsungan hidup. Dengan meningkatnya padat penebaran, laju pertumbuhan dan efisiensi pakan semakin menurun, sedangkan hasil (<em>yield</em>) semakin meningkat. Padat penebaran 2,5 ekor/l menghasilkan laju pertumbuhan harian, laju pertumbuhan individu, pertumbuhan panjang mutlak dan efisiensi pakan tertinggi, masing-masing mencapai 12,94 %, 0,0081 g/hari, 16,84 mm dan 12,51 %. Sedangkan nilai tertinggi untuk hasil (<em>yield</em>) sebesar 0,0360 g/l/hari diperoleh pada padat penebaran 10,0 ekor/l.</p> <p>Kata kunci : padat tebar, pembenihan, gurame dan <em>Osphronemus gouramy</em></p>

scholarly journals Evaluation of larvae production and growth of juvenile red tilapia NIFI F1 during the nursery phase

2019 ◽  
Vol 18 (3) ◽  
pp. 251
Author(s):  
Adam Robisalmi ◽  
Priadi Setyawan ◽  
Bambang Gunadi
Keyword(s):  
Growth Rate ◽  
Survival Rate ◽  
Specific Growth Rate ◽  
Seed Production ◽  
Specific Growth ◽  
Stocking Density ◽  
Brood Stock ◽  
Female Ratio ◽  
Red Tilapia ◽  
Ad Libitum

Genetic quality improvement can be done through breeding programs. The indicator of success in the selection is the improvement of the character of production. Larval production and growth of NIFI of F1generation red tilapia seeds in the selection and its control parents were evaluated in this study. The research was conducted at the Fish Breeding Research Center for four months. Spawning was carried out on freshwater ponds of cage with size of  1 x 1 m. Tilapia brood stock were stocked with male to female ratio of 1: 1. The larvae rearing were conducted in the cage with size 2x2x1 m3 and stocking density 125 m-2. Pellets with a protein content of 38-40% are given to ad libitum larvae three times a day for first month, and then feeding rate was given 15-20% daily from biomass. Seed production, growth, specific growth rate, and survival rate were observed. The results of the experiment show a difference between fish selected and control. Seed production of selection reached 540 ± 114 and controls   508 ± 142. The growth performance of selected red tilapia juvenile showed higher compared with the control. The mean length  of  selected population  reached 6.33 ± 0.43 cm , weight gain 6.60 ± 0.52 g, specific growth rate 7.33 ± 0% g days-1 and survival rate  81.50 ± 4.46% were respectively and the control population  5.76 ± 0.52 cm ; 4,90 ± 0.58 g; 4.50 ± 0.35% g days-1; and 74.85 ± 3.26%. These values indicate that the growth of red tilapia juvenile NIFI F1 generation was increased 25.76%.AbstrakSalah satu upaya yang dapat dilakukan untuk meningkatkan kualitas genetik yaitu melalui program pemuliaan. Per-baikan karakter reproduksi dan pertumbuhan dapat digunakan sebagai indikator keberhasilan seleksi. Penelitian ini bertujuan untuk mengevaluasi produksi larva dan pertumbuhan benih ikan nila merah NIFI F1 dari induk seleksi dan kontrol. Kegiatan dilaksanakan selama empat bulan di Balai Riset Pemuliaan Ikan. Pemijahan dilakukan di kolam air tawar pada hapa 1 m x1 m.  Perbandingan induk ikan nila jantan dan betina 1:1. Larva yang sudah dipanen dimasukkan pada hapa pendederan ukuran 2x2x1 m3 dengan padat tebar 125 ekor m-2 . Selama pendederan , larva diberi pakan (protein 38-42%) secara ad libitum tiga kali sehari pada bulan pertama dan selanjutnya diberi pakan dua kali sehari 15-20% dari biomassa. Pakan yang diberikan selama pendederan mempunyai protein berkisar 38-42%. Parameter yang diamati meliputi produksi larva, pertumbuhan, laju pertumbuhan spesifik, dan sintasan. Hasil penelitian menunjukkan produksi larva ikan nila merah seleksi yaitu 540±114 ekor dan kontrol 508±142 ekor. Performa pertumbuhan benih ikan nila merah seleksi menunjukkan hasil yang lebih tinggi dibanding kontrol dengan nilai pertumbuhan panjang 6,33 ±0,43cm, pertumbuhan bobot 6,60±0,52 g, laju pertumbuhan spesifik 7,33±0% g hari-1 serta sintasan 81,50±4,46%, se-dangkan populasi kontrol masing-masing 5,76±0,52 cm; 4,90±0,58 g; 4,50±0,35% g hari-1; dan 74,85±3,26%. Nilai ini menunjukkan bahwa ada peningkatan pertumbuhan sebesar 25,76% pada benih ikan nila merah NIFI F1.

scholarly journals EFFECTS OF FEED ON THE SURVIVAL RATE, GROWTH RATE AND METAMORPHOSIS TIME OF THE WHITE LEG SHRIMP LARVAE (Litopenaeus vannamei Boone, 1931) AT ZOEA STAGE

2018 ◽  
Vol 54 (4A) ◽  
pp. 205
Author(s):  
Nguyen Van Cong
Keyword(s):  
Growth Rate ◽  
Survival Rate ◽  
Litopenaeus Vannamei ◽  
Survival Rates ◽  
Stocking Density ◽  
Growth And Survival ◽  
Study Results

The larvae of white leg shrimp (Litopenaeus vannamei Boone, 1931) at phase nauplii 6 fed with a stocking density of 150 pcs per litre and 3 formula including formula 1 with dry microalgae Spirulina + artemia as main ingredients, formula 2 with microalgae Thalasiosira weissflogii + artemia as main ingredients and formula 3 with microalgae Thalasiosira pseudonana + artemia as main ingredients. Experiments were carried out in 18 tanks fifty-litre composite at Quang Binh branch of C.P Vietnam Corporation. The study results show that, with formula 3, white leg shrimps larvae at zoea stage have the highest growth and survival rates (86.57 %), followed by formula 2 (76.03 %) and finally formula 1 (67.90 %). White leg shrimps larvae at zoea stage in formula 3 have the shortest metamorphosis time (78.61 hours), followed by formula 2 (83.25 hours) and the longest in formula 1 (94.10 hours).

GROWTH AND SURVIVAL OF TROPICAL ABALONE Haliotis asinina SEED IN CONCRETE TANKS AT DIFFERENTS STOCKING DENSITY

2012 ◽  
Vol 4 (2) ◽  
Author(s):  
Mat Sardi Hamzah ◽  
Sigit Anggoro Putro Dwiono ◽  
Safriyadi Hafid
Keyword(s):  
Growth Rate ◽  
Survival Rate ◽  
Shell Growth ◽  
Economic Value ◽  
Stocking Density ◽  
Seed Density ◽  
Total Production ◽  
Growth And Survival ◽  
Haliotis Asinina ◽  
The World

Tropical abalones (Haliotis asinina) is a marine gastropod that has high economic value and consumed by people in the world. In 2002, the production of abalones was 4.076 ton from total production of marine fisheries in the world 8.000 ton. The countries that produce abalone by farming are Taiwan, Cina, South Africa, Japan, Cilie, USA, Australia and New Zealand. Information about the production in Indonesia is scarce. The main issue faced by farmer is higher mortality during post larvae and juvenile. The aim of this research was to observe the influence of abalone seed density in concrete tanks regarding to growth and survival. The research was conducted in January - May 2012 Mataram Marine Bio Industry Technical Implementation Unit, LIPI. Analysis of varians showed that seed densities was not significantly different (P>0.05). The highest survival rate were in density 75 individual/tank with 11.11 % mortality. The highest growth rate were in 50 individual/tank with shell growth rate 0.21cm/14 days and seed weight was 1.23 g.Keywords: growth, survival rate, seed of abalone (Haliotis asinina), density

scholarly journals The Effect of Potassium Diformate Addition to Feed on Growth and Survival Rates of Common Carp (Cyprinus carpio L.)

2020 ◽  
pp. 1-8
Author(s):  
Ayi Yustiati ◽  
Mahmud Sa’id ◽  
. Junianto ◽  
Ibnu Bangkit Bioshina Suryadi
Keyword(s):  
Growth Rate ◽  
Survival Rate ◽  
Common Carp ◽  
Survival Rates ◽  
Stocking Density ◽  
Good Effect ◽  
Optimal Dosage ◽  
Daily Growth Rate ◽  
Daily Growth ◽  
Growth And Survival

This research aimed to determine the optimal dosage of potassium diformate addition to commercial feed in order to increase the growth and survival rate of common carp seeds. The method used in this research was experimental in a completely randomized design (CRD) consisting of five treatments and four replications. The treatments used were A (control), B with addition of potassium diformate (0.2%), C (0.3%), D (0.4%), and E (0.5%). For test fish, there were 200 of Common carp seeds with a size of 2-3 cm. The media used was 20 aquariums with a size of 40x30x40 cm3 and a stocking density of 10 individuals/aquarium. The rearing period was 35 days and the amount of feed given was 3% of the fish body weight. The parameters observed included water quality (temperature, pH, and dissolved oxygen) which were observed every 7 days for 35 days. Other parameters  monitored were daily growth rate, survival rate, feed efficiency, and the acidity level of the intestine. The results showed that 0.3% addition of potassium diformate gave the best results with a daily growth rate value of 3.21%, highest survival of 98%, efficiency of feed utilization of 64.83%, and a decrease in intestinal pH which helped the process of protein absorption in the fish body. In conclution, the addition of potassium diformate has good effect on growth and survival rates of common carp.

scholarly journals GROWTH AND SURVIVAL OF TROPICAL ABALONE Haliotis asinina SEED IN CONCRETE TANKS AT DIFFERENTS STOCKING DENSITY

2012 ◽  
Vol 4 (2) ◽  
Author(s):  
Mat Sardi Hamzah ◽  
Sigit Anggoro Putro Dwiono ◽  
Safriyadi Hafid
Keyword(s):  
Growth Rate ◽  
Survival Rate ◽  
Shell Growth ◽  
Economic Value ◽  
Stocking Density ◽  
Seed Density ◽  
Total Production ◽  
Growth And Survival ◽  
Haliotis Asinina ◽  
The World

<p>Tropical abalones (Haliotis asinina) is a marine gastropod that has high economic value and consumed by people in the world. In 2002, the production of abalones was 4.076 ton from total production of marine fisheries in the world 8.000 ton. The countries that produce abalone by farming are Taiwan, Cina, South Africa, Japan, Cilie, USA, Australia and New Zealand. Information about the production in Indonesia is scarce. The main issue faced by farmer is higher mortality during post larvae and juvenile. The aim of this research was to observe the influence of abalone seed density in concrete tanks regarding to growth and survival. The research was conducted in January - May 2012 Mataram Marine Bio Industry Technical Implementation Unit, LIPI. Analysis of varians showed that seed densities was not significantly different (P&gt;0.05). The highest survival rate were in density 75 individual/tank with 11.11 % mortality. The highest growth rate were in 50 individual/tank with shell growth rate 0.21cm/14 days and seed weight was 1.23 g.</p><p>Keywords: growth, survival rate, seed of abalone (Haliotis asinina), density</p>

scholarly journals Effects of stocking density on growth and survival of tilapia cultured in biofloc technology system in brackish water

2020 ◽  
Vol 20 (2) ◽  
pp. 221-230
Author(s):  
Nguyen Xuan Thanh ◽  
Le Duc Cuong ◽  
Le Minh Hiep ◽  
Dao Thi Anh Tuyet
Keyword(s):  
Growth Rate ◽  
Survival Rate ◽  
Specific Growth ◽  
Stocking Density ◽  
Control Treatment ◽  
Daily Growth Rate ◽  
Daily Growth ◽  
Growth And Survival ◽  
Technology System ◽  
Biofloc Technology

This study examined the effect of stocking density on growth and survival of tilapia cultured in biofloc technology system. Three different stocking densities cultured in biofloc technology were 6 fish/m3, 8 fish/m3 and 10 fish/m3 for 86 days in triplicate for each treatment. The stocking density of the control lot was 3 fish/m3 cultured without biofloc technology. Initial stocking weight ranged from 2–3 g/fish. The water quality parameters were monitored and regulated in the suitable ranges for biofloc technology and for the growth and development of tilapia. The results showed that specific growth rate of fish cultured at a density of 6 fish/m3 was higher than that in the treatments of 8 fish/m3 and 10 fish/m3 with the average values of 5.72%; 5.62% and 5.43%, respectively, and the specific growth rate of fish in the control treatment was 5.71%. Daily growth rate of fish cultured at a density of 6 fish/m3 was higher than that cultured at densities of 8 fish/m3 and 10 fish/m3 with average values of 3.19 g/day, 2.98 g/day, and 2.55 g/day, respectively; and the daily growth rate of the control treatment was 3.27 g/day. Survival rate of tilapia cultured at densities of 6 fish/m3 and 8 fish/m3 was 100%, whereas survival rate of tilapia cultured at a density of 10 fish/m3 was 95.75%, and it was 88.9% for the control lot. The research results provide a scientific basis to propose tilapia culture technique in biofloc technology in brackish water, with the density of 6–8 fish/m3.

scholarly journals Growth performance of Wader Cakul juvenile (Puntius binotatus) with different stocking density

2019 ◽  
Vol 2 (1) ◽  
pp. 40
Author(s):  
Dony Prasetyo ◽  
Anis Zubaidah ◽  
Vera Noviana
Keyword(s):  
Growth Rate ◽  
Survival Rate ◽  
Survival Rates ◽  
Stocking Density ◽  
Fish Farming ◽  
Feed Conversion ◽  
Growth And Survival ◽  
Randomized Design ◽  
Significant Difference ◽  
Absolute Growth

One of the freshwater fishes thatbegan to bedeveloped is Wader fish, but there is still a lot of information that has notbeen supportedon fish farming techniques. One of them is the optimal stocking density for cultivation. The purpose of this study was to study the effects of different stocking densities on the growth and survival rates of the WaderCakulfish (Puntiusbinotatus).This research was conductedin May - July 2018. The method used in this study was to use aCompletely Randomized Design with 4 training, namely P1 (2 fish/liter), P2 (3 fish/liter), P3 (4 fish/liter) and P4 (5 fish/liter).Each treatment was repeated3 times. The main parameters were absolute growth rate (length and weight gain)(GR), specific growth rate (SGR), survival rate (SR), and feed conversion ratio (FCR).Data were analyzedusing ANOVA (analysis of variance) and continued with the Least Significant Difference Test. The results showed that different stocking densities gave significant values (P <0.05) for GR, SGR, SR and FCR comparisons. The best treatment in this study was P1 with a growth value of 0.31 ± 0.01 gram, SGR 3.50 ± 0.03%, Long Growth 1.97 ± 0.05 cm, SR 85.07 ± 2.17% and FCR 1.47 ± 0.02. P1 (2 fish/liter) is the best maintenance to increase the growth, survival rate, and feed efficiency of thecakulwader fish.

scholarly journals Stocking Density, Growth and Survival Rate of Post-Settled Juveniles of Holothuria scabra (Jaeger 1833) Reared in an Ocean-Based Floating Hapa

2021 ◽  
Vol 47 (3) ◽  
pp. 1041-1054
Author(s):  
Yussuf S Yussuf ◽  
Saleh AS Yahya
Keyword(s):  
Growth Rate ◽  
Survival Rate ◽  
Initial Density ◽  
Stocking Density ◽  
Allometric Growth ◽  
Final Size ◽  
Growth And Survival ◽  
Strong Positive Relationship ◽  
Density Growth ◽  
Set Up

Ocean-based nursery system using floating hapa have proved to be the best option for raising early sandfish juveniles. However, the nursery system can be further improved by providing key information that will support their application. The present study provides information on the effect of stocking density on growth and survival of sandfish juveniles reared in floating hapa (1 x 0.5 x 1 m). Three densities were tested, 100, 200 and 400 early juveniles (5 mm; 0.093 g) per hapa net in a randomized set-up. Initial density of 100 and 200 showed significant higher growth rate and final size (0.082–0.074 g/day; 3.76–3.42 g) compared to 400 (0.045 ± 0.002 g/day; 2.11 ± 0.07 g). Moreover, at 100 and 200 densities, > 95% of all juveniles attained release size (2 g) and only 74% for 400 density after 45 days of rearing. Sandfish juveniles showed negative allometric growth and their survival did not display any pattern (100 = 91%; 200 = 35%; 400 = 51.3%). The coefficient of variation for weight of juveniles showed strong positive relationship with initial density (R2 = 0.99, p = 0.039) with CV values of (100 = 48.6%; 200 = 49.8%; 400 = 50.1%). It is therefore concluded that, 100 stocking density should be opted for optimum results, however, 200 can also be considered provided that, the survival is improved.   Keywords: Sea cucumber; Ocean-based Nursery; Stocking density; Survival rate; Growth rate

scholarly journals WATER QUALITY AND ITS EFFECT ON GROWTH AND SURVIVAL RATE OF LOBSTER REARED IN FLOATING NET CAGE IN EKAS BAY, WEST NUSA TENGGARA PROVINCE

2015 ◽  
Vol 6 (2) ◽  
Author(s):  
Muhammad Junaidi ◽  
Mat Sardi Hamzah
Keyword(s):  
Water Quality ◽  
Growth Rate ◽  
Survival Rate ◽  
Quality Data ◽  
Dominant Factor ◽  
Growth And Survival ◽  
Water Quality Status ◽  
Net Cage ◽  
Quality Status ◽  
Effect On Growth

ABSTRACT The development of lobster farming in floating net cage in Ekas Bay caused an environmental degradation such as decrease water quality due to some aquaculture wastes. The purposes of this study were to determine the status of water quality and their effect on growth and survival rate of lobster reared in floating net cages (FNC) in the Ekas Bay, West Nusa Tenggara Province. Water sample collection and handling referred to the APHA (1992). Analyses of water quality data were conducted using Principal Component Analysis. Determination of the water quality status of Ekas Bay was performed with STORET system. Multivariate analyses were used to determine the relationship between water quality, growth, and survival rate of lobster reared in FNC. Results showed that Ekas Bay water quality status was categorized in class C (medium contaminated), which exceeded some quality standard parameters such as ammonia (0.3 mg/l), nitrate (0.008 mg/l), and phosphate (0.015 mg/l). During lobster farming activities feeding with trash fish for 270 days, we obtained daily growth rate of  0.74% (lower than normal growth rate of 0.86%), survival rate of 66% (lower than normal survival rate of 86.7%), and feed conversion ratio of 11.15. Ammonia was found as a dominant factor reducing growth  and survival rate of lobster reared in FNC. Keywords: water quality, lobsters, growth, survival, Ekas Bay

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