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

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).

Author(s):  
Ayi Yustiati ◽  
Mahmud Sa’id ◽  
. Junianto ◽  
Ibnu Bangkit Bioshina Suryadi

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.


2019 ◽  
Vol 2 (1) ◽  
pp. 40
Author(s):  
Dony Prasetyo ◽  
Anis Zubaidah ◽  
Vera Noviana

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.


2007 ◽  
Vol 4 (1) ◽  
pp. 17 ◽  
Author(s):  
Kukuh Nirmala ◽  
R. Wulandari ◽  
D. Djokosetiyanto

<p>This study was conducted to determine the effect of hardness on growth and survival rate of barb fish (<em>Barbus conchonius</em> Hamilton-Buchanan) reared in the 3 ppt of water salinity.  Fish were reared in three different hardnesses, i.e., 54, 72,<sub> </sub>and 90 mg/L CaCO<sub>3 </sub>for 30 days.  The results of study showed that fish reared in water hardness of 72 mg/L CaCO<sub>3</sub> had higher daily growth rate (1.15%) compared with other treatments.  Daily growth rate of fish reared in water hardness of 54 and 90 mg/L CaCO<sub>3</sub> were 0.76 and 0.37%, respectively.  There was no effect of hardness on survival rate of barb fish.</p> <p>Keywords: barb fish, <em>Barbus conchonius</em>,  hardness, salinity</p> <p> </p> <p>ABSTRAK</p> <p>Penelitian ini bertujuan untuk mengetahui pengaruh kesadahan yang berbeda terhadap laju pertumbuhan dan tingkat kelangsungan hidup ikan barbir (<em>Barbus conchonius</em> Hamilton-Buchanan) yang dipelihara <a name="OLE_LINK2"></a><a name="OLE_LINK1">pada air bersalinitas 3 ppt.  </a>Ikan dipelihara dalam 3 tingkat kesadahan yang berbeda, yaitu 54 mg/L CaCO<sub>3</sub>, 72 mg/L CaCO<sub>3</sub>,<sub> </sub>dan 90 mg/L CaCO<sub>3 </sub>selama 30 hari.  Hasil penelitian menunjukkan bahwa laju perumbuhan harian tertinggi diperoleh pada ikan yang dipelihara pada kesadahan 72 mg/L CaCO<sub>3 </sub>(1,15%) dibandingkan dengan perlakuan lainnya. Laju pertumbuhan harian ikan yang dipelihara pada kesadahan 54 dan  90 mg/L CaCO<sub>3</sub> masing-masing mencapai 0,76% dan 0,37%.  Kelangsungan hidup ikan barb tidak dipengaruhi oleh kesadahan.</p> <p>Kata kunci: ikan barbir, <em>Barbus conchonius</em>, kesadahan, salinitas</p>


2009 ◽  
Vol 8 (2) ◽  
pp. 199 ◽  
Author(s):  
S. Sarah ◽  
. Widanarni ◽  
Agus Oman Sudrajat

<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>


Author(s):  
Abdul Rakhfid ◽  
Udin Mauga

Vannamei shrimp (Litopenaeus vannamei) is a commodity that is expected to not only increase options for farmers but also sustain the rise of shrimp farming business in Indonesia. One important factor in shrimp farming is the availability of feed. In addition to the availability of natural feed during cultivation, stocking density is also very influential in the survival rate and growth of shrimp vannamei. The research was conducted in September-December 2016 farms Bonea Village District of Lasalepa Muna with Test the different dosages with different stocking density. The study used a Random Group Factorial, which is based fertilization (Factor A) with three levels and stocking density (Factor B) as many as three levels, each with three replications so that all 27 units experimental unit. The results showed that the combination of factors dose of 0.7 g of urea + 0.9 g TSP and stocking density factor of 10 individuals per container provides prawn post larvae growth vannamei most excellent and a combination of factors Urea fertilizer dosage of 0.9 g TSP + 1.1 g and stocking density factor of 20 individuals per container provides a survival rate of post larvae vannamei most good. Water quality media for research in the range that is optimal for the growth and survival of post larvae vannamei.


2012 ◽  
Vol 4 (2) ◽  
Author(s):  
Mat Sardi Hamzah ◽  
Sigit Anggoro Putro Dwiono ◽  
Safriyadi Hafid

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


2021 ◽  
Vol 29 (2) ◽  
pp. 69-79
Author(s):  
Iwona Piotrowska ◽  
Bożena Szczepkowska ◽  
Michał Kozłowski

Abstract The aim of the study was to determine the influence of the size and form of Artemia sp. feed on the rearing indices of Atlantic sturgeon larvae. In the experiment, the nauplius sizes used were 480 µm (group AD), 430 µm (group AM), and 430 µm frozen nauplii (group AI). After three weeks of rearing, the sturgeon from group AD had the highest mean body weight of 0.131 g that was statistically significantly different from groups AM (0.071 g) and AI (0.033 g). The longest total length was noted in group AD (2.8 cm) and was statistically different from the others (P ≤ 0.05). Specific growth rate in groups AD and AM was 14.7 and 11.8% d−1, respectively, and these values differed statistically from those in group AI at 7.8% d−1. The highest survival rate was recorded in group AD at 60.6%, while the lowest was noted in group AI at 15.6%, and the differences between these two groups were statistically significant. The results of the experiment indicated that a feed of live 480 µm Artemia sp. nauplius significantly accelerated the growth rates and increased the survival rates of Atlantic sturgeon larvae.


2018 ◽  
Vol 12 (4) ◽  
pp. 341
Author(s):  
Tri Heru Prihadi ◽  
Adang Saputra ◽  
Gleni Hasan Huwoyon ◽  
Brata Pantjara

Ikan betutu Oxyeleotris marmorata merupakan ikan lokal potensial menjadi komoditas budidaya. Performa pertumbuhan dan sintasan dapat ditingkatkan dengan mengoptimalkan padat tebar. Tujuan penelitian adalah menentukan padat tebar yang menghasilkan sintasan dan pertumbuhan tinggi, serta respons fisiologis terbaik. Kolam yang digunakan berukuran 2 m x 1 m x 1 m dan diisi air 1 m3. Perlakuan yang diuji adalah kepadatan 50 ekor/m3, 100 ekor/m3, dan 150 ekor/m3. Ukuran benih yang digunakan 4,24 ± 0,58 cm dengan bobot 2,74 ± 0,45 g. Selama 60 hari masa pemeliharaan, pakan yang diberikan adalah cacing sutra Tubifex sp. secara sekenyangnya. Hasil penelitian menunjukkan sintasan benih ikan betutu yang dipelihara pada berbagai padat tebar tidak berbeda secara nyata, pertumbuhan spesifik panjang (1,50 ± 0,37%/hari) dan bobot total benih ikan betutu (1,95 ± 0,32%/hari) tertinggi, dan perubah respons fisiologis berupa gambaran darah paling stabil dicapai pada padat tebar 50 ekor/m3, serta biomassa tertinggi dicapai pada kepadatan 150/m3. Hasil penelitian ini dapat dijadikan informasi dasar untuk melakukan pendederan ikan betutu secara terkontrol.Sand goby, Oxyeleotris marmorata is a potential fish species for aquaculture in Indonesia. However, the growth performance and survival rate of the fish seed are still low. Such challenges could be solved through the optimization of stocking density of the fish. The research objective was to determine the optimal stocking density to produce high growth and survival rate, as well as the best physiological response. The ponds used in this experiment were 2 m x 1 m x 1 m in size (water volume: 1 m3). The stocking density treatments were 50, 100, and 150 individual/m3. The initial fish length average was 4.24 ± 0.58 cm, with the initial body weight average of 2.74 ± 0.45 g. During 60 days of rearing period, the fish were fed with Tubifex sp. ad libitum. The results showed that the survival rates on different stocking densities were not significantly different. The highest specific growth on length (1.50 ± 0.37%/day) and body weight total (1.95 ± 0.32%/day) and the most stable physiological response related to its hematological parameters were achieved by seed stocked at 50 individuals/m3. The best biomass total was achieved by seed stocked at 150 individuals/m3. The result of this study could be applied as basic information to culture sand goby in a controlled environment.


2020 ◽  
Vol 20 (2) ◽  
pp. 143
Author(s):  
Henny Syawal ◽  
Irwan Effendi ◽  
Ronal Kurniawan

Striped catfish Pangasianodon hypophthalmus (Sauvage, 1878) has a high economic value and relatively fast growth, so that optimum stocking density and supplement of natural ingredients, such as Curcuma domestica Val., Kaempferia galanga Linn., and Curcuma xanthorriza Robx. can increase growth and immunity. This study aimed to obtain the optimum stocking density and herbal supplement dosage in feed to increase the growth and survival rates of striped catfish. An experimental method by applying factorial design was used, i.e. the dose and stocking density factors. The dosage of herbal supplements used were 100 mL kg-1 feed (D1), 200 mL kg-1 (D2) and 300 mL kg-1 (D3). Stocking density used was 50 m-3 (P1) and 75 m-3 (P2). The fish used were 8.5±0.5 cm long and weighed 7.5±0.3 g, kept in floating cages of 1 m x 1.5 m x 1 m. Fish maintenance was carried out for 60 days with feeding frequency of three times a day, as much as 10% of body weight. The results showed that the treatment of 200 mL kg-1 dosage and 75 m-3 stocking densities was the best treatment. This treatment showed that specific growth rate, absolute weight, absolute length and feed efficiency were 4.86%, 119.07 g, 15.45 cm, 82.93%, respectively. A supplement dose of 200 mL kg-1 in feed and stocking densities of 75 m-3 could increase growth rates, survival, and feed utilization efficiency of striped catfish.


2012 ◽  
Vol 4 (2) ◽  
Author(s):  
Mat Sardi Hamzah ◽  
Sigit Anggoro Putro Dwiono ◽  
Safriyadi Hafid

<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>


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