PERFORMA RUMPUT LAUT Kappaphycus alvarezii HASIL SELEKSI DI PERAIRAN LAIKANG KABUPATEN TAKALAR

Peremajaan bibit melalui seleksi dapat dilakukan untuk perbaikan kualitas bibit rumput laut. Penelitian ini bertujuan untuk menentukan performa bibit rumput laut K. alvarezii hasil seleksi varietas Takalar, SIRICA, dan Bali. Desain penelitian adalah rancangan acak lengkap (RAL), dengan empat siklus pemeliharaan sebagai ulangan. Seleksi bibit dilakukan pada ketiga varietas dengan bibit non-seleksi sebagai kontrol internal. Pemeliharaan dilakukan di perairan Laikang, Takalar, Sulawesi Selatan selama empat siklus dengan durasi 30 hari/siklus. Pengukuran laju pertumbuhan harian (LPH), kandungan karagenan, kekuatan gel, dan monitoring kualitas air dilakukan setiap 30 hari. Data yang diperoleh dianalisis menggunakan analisis ragam (ANOVA). Hasil penelitian menunjukkan bahwa seleksi bibit berpengaruh signifikan terhadap LPH rumput laut (P<0,05). Rumput laut hasil seleksi memiliki LPH lebih tinggi, yakni: Bali (4,75 ± 0,04%/hari), SIRICA (4,74 ± 0,06%/hari), dan Takalar (4,62 ± 0,12%/hari) dibandingkan dengan kontrol internal Bali (3,94 ± 0,15%/hari), SIRICA (3,74 ± 0,10%/hari), dan Takalar (3,66 ± 0,32%/hari). Rumput laut hasil seleksi varietas Bali dan SIRICA memiliki kandungan karagenan yang relatif sama yakni (37,27 ± 6,68%) dan (37,08 ± 7,17%). Varietas Takalar memiliki kandungan karagenan yang rendah (31,84 ± 5,32%) namun memiliki kekuatan gel yang paling tinggi (570,03 ± 145,72 g/cm²) dibandingkan varietas Bali (444,39 ± 157,44 g/cm²) dan SIRICA (438,48 ± 72,70 g/cm²).Regeneration by selection method can improve the quality of seaweed seed. This study was aimed to determine the performance of selected seaweed seeds of K. alvarezii from Takalar, SIRICA, and Bali varieties. The experiments were arranged in a completely randomized design with four cycles cultivations as replications. In each variety, a batch of non-selected/regular seeds was cultivated serving as internal control. The seaweed was cultivated in Laikang waters, Takalar Regency, South Sulawesi for 30 days for each cycle. The measurements of daily growth rate (DGR), carrageenan yield, gel strength, and water quality were conducted every 30 days. The collected data were statistically analyzed using ANOVA. The results showed that the selected seeds showed faster growth than that of its respective control (P<0.05). The selected seed of three varieties of K. alvarezii had higher DGR: Bali (4.75 ± 0.04%/day), SIRICA (4.74 ± 0.06%/day), and Takalar (4.62 ± 0.12%/day) than that of control varieties, Bali (3.94 ± 0.15%/day), SIRICA (3.74 ± 0.10%/day), and Takalar (3.66 ± 0.32%/day). The selected seeds of Bali and SIRICA had similar carrageenan content (37.27 ± 6.68%) and (37.08 ± 7.17%), respectively. Takalar had the lowest carrageenan yield (31.84 ± 5.32) but had the highest gel strength (570.03 ± 145.72 g/cm²) compared to Bali (444.39 ± 157.44 g/cm²) and SIRICA (438.48 ± 72.70 g/cm²).

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PENGARUH KEDALAMAN PENANAMAN TERHADAP PERTUMBUHAN Kappaphycus alvarezii HASIL KULTUR JARINGAN DI PERAIRAN DESA SERIWE, LOMBOK TIMUR

Jurnal Perikanan Unram ◽

10.29303/jp.v9i1.124 ◽

2019 ◽

Vol 9 (1) ◽

pp. 17-29

Author(s):

Baiq Hilda Astriana ◽

Dewi Putri Lestari ◽

Muhammad Junaidi ◽

Muhammad Marzuki

Keyword(s):

Kappaphycus Alvarezii ◽

Quality Parameters ◽

Current Speed ◽

Daily Growth Rate ◽

Daily Growth ◽

Planting Depth ◽

Randomized Design ◽

Significant Difference ◽

Absolute Growth ◽

Completely Randomized Design

This research aimed to address the effect of seaweed Kappaphycus alvarezii (result of tissue culture) planting depth on the seaweed growth. This reasearch was conducted in Seriwe Village water, Jerowaru subdistrict, East Lombok Regency known as the largest minapolitan area in West Nusa Tenggara Province. Method used in this research was completely randomized design consisting of five treatments of planting depth which were 0.15 m, 0.5 m, 1 m, 1.5 m, and 2 m. Each treatment was repeated four times. Main parameters measured were the seaweed Daily Growth Rate, Absolute Growth. In addition, water quality parameters measured were temperature, light intensity, dissolved oxygen, salinity, pH, Phosphate, ammoniac, TAN, TDS, and current speed. Data collected were analyzed using ANOVA with significant level of 5% and any significant difference between the treatments was analyzed using LSD in the same significant level. The result of data analysis shows that the most optimum planting depth appropriate for K. alvarezii growth is 0.5 m.

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Determination of Optimal Planting Distance between Seed Clump on Seaweed Verticulture Method

Jurnal Perikanan Universitas Gadjah Mada ◽

10.22146/jfs.33310 ◽

2018 ◽

Vol 20 (1) ◽

pp. 23 ◽

Cited By ~ 1

Author(s):

Petrus R Pong-Masak ◽

Nelly H Sarira

Keyword(s):

Kappaphycus Alvarezii ◽

Seaweed Cultivation ◽

Daily Growth Rate ◽

Daily Growth ◽

Floating Raft ◽

Randomized Design ◽

Completely Randomized Design ◽

Planting Distance ◽

Planting Season

Kappaphycus alvarezii cultivation by the verticulture method has been introduced since 2013. However, scientific studies on some technical aspects are still needed to improve the quality, quantity, and continuity of production and utilization of area in a maximum and productive manner. One of them is the planting distance between seed clumps. The purpose of this study was to determine the optimal planting distance between seed clumps on seaweed verticulture method. Seaweed was cultured using a 10x10 m2 floating raft containing 36 vertical nets of 5x2 m2/net. Seaweed seeds with an initial weight of 50 g were tied to a vertical net with a distance between knot on the verticulture net of 15 cm, 25 cm, and 35 cm. Seaweed cultivation was done for 3 cycles (1 cycle = 45 days) continuously in the cycle of planting season. The experimental units were prepared with Completely Randomized Design (RAL) with 3 replications. The results showed that daily growth rate (DGR) and carrageenan content of seaweed planted with a distance of 15 cm, 25 cm, and 35 cm between clumps were not significantly different (P>0.05). However, it is recommended to apply 25 cm distance between seed clumps in the verticulture method.

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Peningkatan kualitas karagenan rumput laut Kappaphycus alvarezii dengan metode budidaya keranjang jaring

Jurnal Akuakultur Indonesia ◽

10.19027/jai.15.2.124-131 ◽

2016 ◽

Vol 15 (2) ◽

pp. 124 ◽

Cited By ~ 1

Author(s):

Ismail Failu ◽

Eddy Supriyono ◽

Sugeng Hari Suseno

Keyword(s):

Growth Rate ◽

Kappaphycus Alvarezii ◽

Gel Strength ◽

Daily Growth Rate ◽

Daily Growth ◽

Cultivation Method ◽

Yield Value ◽

Carrageenan Quality ◽

Seaweed Culture

ABSTRACT This study aimed to analyze the quality of Kappaphycus alvarezii seaweed carrageenan cultured using methods basket nets in waters of Baruta, Sangia, Wambulu, District of Buton, Southeast Sulawesi. The study consisted of three treatments in triplicates. Seaweed culture used different cultivation net-basket forms i.e. net-basket box, net-basket lantern, and longline without net-basket (control). Quality of K. alvarezii seaweed obtained in this study varied from each treatments. Daily growth rate in each treatment were not significantly different. Production of seaweed with a net-basket box (201.61 g/m2) was higher than the net-basket lanterns (183.22 g/m2), but not significantly different from control (196.98 g/m2). Carageenan yield value of control (46.74%) was the highest of all treatments. The water content of carrageenan in each treatment was not significantly different and it ranged from 17.20–17.39%. The viscosity of carrageenan in net-basket lantern (179.40 cPs) was the highest of all treatments. Carrageenan gel strength was the best treatment (702.53 g/cm²). As conclusion, using the net-basket lantern as cultivation method provided quality improvement of carrageenan in K. alvarezii seaweed. Keywords: Kappaphycus alvarezii, cultivation methods, carrageenan quality ABSTRAK Penelitian ini bertujuan untuk menganalisis kualitas karagenan rumput laut Kappaphycus alvarezii yang dibudidaya menggunakan metode keranjang jaring di perairan Baruta, Kecamatan Sangia, Wambulu, Kabupaten Buton Sulawesi Tenggara. Penelitian terdiri atas tiga pelakuan dan tiga ulangan. Pemeliharaan rumput laut dilakukan dengan metode keranjang jaring berbeda yaitu metode keranjang jaring kotak, keranjang jaring lampion, dan longline tanpa menggunakan keranjang jaring (kontrol). Hasil pengamatan kualitas rumput laut K. alvarezii dalam penelitian ini bervariasi dari setiap perlakuan yang diberikan. Laju pertumbuhan harian pada setiap perlakuan tidak berbeda nyata. Produksi rumput laut dengan metode keranjang jaring kotak (201,61 g/m2) lebih tinggi dibandingkan jaring lampion (183,22 g/m2), namun tidak berbeda nyata dengan kontrol (196,98 g/m2). Nilai rendemen karagenan kontrol (46,74%) lebih tinggi dari perlakuan lainnya. Kadar air karagenan pada setiap perlakuan tidak berbeda nyata yaitu berkisar 17,20–17,39%. Viskositas karagenan perlakuan metode keranjang jaring lampion (179,40 cPs) lebih tinggi dibandigkan perlakuan lainnya. Kekuatan gel karagenan perlakuan metode keranjang jaring lampion (702,53 g/cm²) lebih tinggi dibandingkan perlakuan lainnya. Berdasarkan hasil tersebut, maka dapat disimpulkan bahwa metode keranjang jaring lampion memberikan peningkatkan kualitas karagenan rumput laut K. alvarezii yang dibudidayakan. Kata kunci: Kappaphycus alvarezii, metode budidaya, kualitas karagenan

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PENGARUH SUBSTITUSI TEPUNG IKAN DENGAN TEPUNG KEPALA IKAN PATIN (Pangasius sp) TERHADAP PERTUMBUHAN IKAN LELE SANGKURIANG (Clarias sp)

Jurnal Akuakultur Rawa Indonesia ◽

10.36706/jari.v6i2.7157 ◽

2018 ◽

Vol 6 (2) ◽

pp. 129-140

Author(s):

Yesica Manullang ◽

Limin Santoso ◽

Tarsim .

Keyword(s):

Growth Rate ◽

Fish Meal ◽

Daily Growth Rate ◽

Daily Growth ◽

Protein Retention ◽

Weight Growth ◽

Randomized Design ◽

Absolute Growth ◽

Completely Randomized Design ◽

Difference Test

ABSTRACTThe research was conducted at the Aquaculture Laboratory, University of Lampung in May to July, 2018. The aim of this study is to determine the effect of substitution of fish meal with catfish head flour on the growth of catfish, and head flour dosage the best for catfish growth. The study used a Completely Randomized Design with 3 treatments and 3 replications A (100% fish meal), B (70% fish meal and 30% catfish flour), and C (40% fish meal and 60% catfish flour). Parameters observed included absolute growth, daily growth rate, protein retention, feed convertion ratio (FCR), survival rate (SR), and supporting parameters that is feed cost and water quality. The data obtained were analyzed by variance and continued with smallest real difference test with a 95% confidence level. The results showed that the proportion of catfish head flour in artificial feed had an effect on absolute weight growth and daily growth rate (P, 0.001). The proportion of the use of 30% starch in the feed of catfish has a real influence on absolute growth (40.25 ± 5.67 g), and daily growth rate (0.67 ± 0.09 g/day).Keywords : Catfish, catfish head waste, substitution, feed, growth

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Uji Organoleptik pada Pengaruh Penambahan Rumput Laut Kappaphycus alvarezii (Doty, 1985) Florideophyceae: Solieriaceae dan Gracillaria verrucosa (Hudson, 1950) Rhodophyceae: Gracilariaceae Terhadap Produk Mie Suket Segoro

Journal of Marine Research ◽

10.14710/jmr.v10i1.28494 ◽

2021 ◽

Vol 10 (1) ◽

pp. 72-77

Author(s):

Lailatul Atiqoh ◽

AB Susanto ◽

Gunawan Widi Santosa

Keyword(s):

Physical Properties ◽

Wheat Flour ◽

Kappaphycus Alvarezii ◽

Gel Strength ◽

Processed Food ◽

Organoleptic Test ◽

Randomized Design ◽

Completely Randomized Design ◽

The One

Mie merupakan suatu jenis makanan hasil olahan tepung yang sudah dikenal dan digemari oleh sebagian besar masyarakat Indonesia. Rumput laut K. alvarezii merupakan rumput laut penghasil karaginan (karigenofit)danG. verrucosa merupakan rumput laut penghasil agar (agarofit).Penelitian ini bertujuan untuk mengetahui pengaruh untuk mengetahui pengaruh penambahan rumput laut terhadap karakteristik sifat fisik mie (gel strength) dan penerimaannya dalam masyarakat, meliputi kesukaan terhadap tekstur, rasa, aroma, warna, dan kenampakan mie.Penelitian dilakukan secara eksperimental menggunakan rancangan acak lengkap (RAL) dengan 7 perlakuan dan 4 ulangan dengan perbedaan konsentrasi penambahan rumput laut segar yakni: Kontrol (karagenan + terpung terigu), A (K.alvarezii + karagenan + terpung terigu),B (G.verrucosa + karagenan + tepung terigu). Kemudian dilakukan uji organoleptik yang meliputi tekstur, warna, rasa dan aroma produk mie. Hasil penelitian menunjukkan bahwa uji organoleptik terhadap tekstur mie yang paling disukai yaitu pada perlakuan A2 (4,30), dan yang tidak disukai yaitu padaperlakuan B3 (3,27). Rasa yang paling disukai yaitu perakuan A2 (3,74) dan yangtidak disukai pada perlakuan B3 (2,64). Aroma yang paling disukai yaitu pada perlakuan A3 (3,63) dan yang tidak disukai yaitu pada perlakuan B1 (2,71). Warna yang paling disukai yaitu pada perlakuan B3 (3,67) dan yang tidak disukai yaitu perlakuan A2 (3,53). Kenampakan yang paling disukai yaitu pada mie dengan perlakuan A3(3,80) dan yang tidak disukai yaitu pada perlakuan B3 (3,54 Hasil dari ANOVA gel strength menunjukkan bahwa penambahan rumput laut berpengaruh nyata terhadap sifat fisik mie P<0.05). Noodle is a type of processed food that is well-known and favored by most Indonesian people. K. alvarezii seaweed is a carrageenan-producer seaweed (carregenophyte) and G. verrucosa is agar-producer seaweed (agarophyte). This study aims to determine the effect of the addition of seaweed to the characteristics of the physical properties of noodles (gel strength) and its acceptance in community, including preference for texture, taste, scent, color, and appearance of noodles. The research was conducted experimentally using a completely randomized design (CRD) with 7 treatments and 4 replications with different concentrations of fresh seaweed addition namely: Control (carrageenan + wheat flour) , A (K. alvarezii + carrageenan + wheat flour), B (G.verrucosa + carrageenan + wheat flour). Then the organoleptic test was performed which included the texture, color, taste and aroma of the noodle product. The results showed that the most preferred organoleptic test on the texture of noodles was in the treatment A2 (4.30), and the one that was disliked was the B3 treatment (3.27). The most preferred flavor is rooting A2 (3.74) and which is not preferred in B3 treatment (2.64). The most preferred scent was in treatment A3 (3.63) and the one that was disliked was in treatment B1 (2.71). The most preferred color is the B3 treatment (3.67) and the least preferred one is the A2 treatment (3.53). The most preferred appearance was noodles with A3 treatment (3.80) and the undesirable one was on B3 treatment (3.54 results from ANOVA gel strength showed that the addition of seaweed significantly affected the physical properties of noodles P <0.05).

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KINERJA PERTUMBUHAN DAN DINAMIKA KUALITAS AIR PADA BUDIDAYA ANGGUR LAUT (Caulerpa sp.) DENGAN NAUNGAN BERBEDA

Jurnal Agroqua Media Informasi Agronomi dan Budidaya Perairan ◽

10.32663/ja.v19i1.1540 ◽

2021 ◽

Vol 19 (1) ◽

pp. 15

Author(s):

Riris Yuli Valentine ◽

I Nyoman Sudiarsa ◽

Sartika Tangguda ◽

Dimas Rizky Hariyadi

Keyword(s):

Growth Rate ◽

Data Analysis ◽

Aquatic Plants ◽

Daily Growth Rate ◽

Daily Growth ◽

Absolute Weight ◽

Randomized Design ◽

Significant Difference ◽

Absolute Length ◽

Completely Randomized Design

Seagrapes (Caulerpa sp.) is one of the aquatic plants which tends to grow slowly according to the environmental conditions where sea grapes live. This study aims to determine the growth performance of sea grapes given different shelters. The method used in this study was three treatments, each treatment was repeated three times, with differences in the shade (P1 = paranet), (P2 = without roof), and (P3 = coconut leaves). Data analysis used a non-factorial completely randomized design (CRD). The results of this study are at absolute weights (P1 =1163.3 ± 260a g), (P2 = 210 ± 79.3b g), (P3 = 922 ± 199.5a g), absolute length (P1 = 5.75 ± 1.74a cm), (P2 = 0.59 ± 0 , 07b cm), (P3 = 4.82 ± 0.22a cm), daily growth rate (4.40 ± 0.1a %), (3.76 ± 0.09b %), (4.29 ± 0.09a) and the number of ramuli (P1 = 56.2 ± 21.3a), (P2 = 19.5 ± 2.3b), (P3 = 46.3 ± 3.1a). The conclusion of this study each parameter (absolute weight, absolute length and number of ramuli) has a significant difference.

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SUPPLEMENTASI ROSELLA (Hibiscus sabdariffa LINN) DALAM PAKAN BUATAN TERHADAP KINERJA BENIH IKAN NILEM (Osteochilus hasselti)

Jurnal Mina Sains ◽

10.30997/jms.v5i1.1770 ◽

2019 ◽

Vol 5 (1) ◽

Author(s):

Mulyana Mulyana1 ◽

Rosmawati Rosmawati

Keyword(s):

Growth Rate ◽

Survival Rate ◽

Feed Efficiency ◽

Hibiscus Sabdariffa ◽

Daily Growth Rate ◽

Daily Growth ◽

Randomized Design ◽

Completely Randomized Design

The research is aimed to know the dose of Roselle in the feed that produce the best of the daily growth rate, survival rate and feed efficiency on Hard-Lipped Barb Fry. The research was using completely randomized design with 5 treatments and 3 replications. The treatments were differences in dose of Roselle in the feed (0, 10, 20, 30, and 40 g of Roselle/kg of feed). The results of the research showed that the treatment of 40 g of Roselle/kg of feed have been given significantly different effect (P <0,05) against the daily growth rate and feed efficiency, respectively 2,02% and 27,55%. Keywords: Hard-Lipped Barb, Roselle, growth.

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Supplementation of Gamal leaves flour (Gliricidia sepium) in commercial feed on the growth of Nirwana tilapia (Oreochromis niloticus) fingerlings

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/869/1/012070 ◽

2021 ◽

Vol 869 (1) ◽

pp. 012070

Author(s):

D Islama ◽

N Nurhatijah ◽

A S Batubara ◽

A Supriatna ◽

L Arjuni ◽

...

Keyword(s):

Oreochromis Niloticus ◽

Gliricidia Sepium ◽

Maintenance Period ◽

Feed Conversion ◽

Daily Growth Rate ◽

Daily Growth ◽

Randomized Design ◽

Commercial Feed ◽

Completely Randomized Design ◽

Length Gain

Abstract This study aimed to examine the effect of Gamal leaves flour supplementation in commercial feed on the growth of Nirwana tilapia (Oreochromis niloticus) fingerlings. The experimental design used was a non-factorial completely randomized design consisting of four treatments and four replications. The treatments studied included commercial feed without supplementation of Gamal leaves flour as a control (P0), commercial feed with supplementation of Gamal leaves flour 10% kg−1 feed (P1), commercial feed with supplementation of Gamal leaves flour 15% kg−1 feed (P2), and commercial feed with supplementation of Gamal leaves flour 20% kg−1 feed (P3). Nirwana tilapia fingerlings were stocked at a density of 1 fish L−1. Nirwana tilapia fingerlings size ranges from 2-3 cm. Nirwana tilapia fingerlings maintenance period lasts for 40 days. The Annova test showed that the treatment gave a significant effect on the weight gain, length gain, daily growth rate, and feed conversion ratio (P < 0,05), but did not give a significant effect on the survival rate of Nirwana tilapia fingerlings (P > 0,05). The best dose to increase the growth of Nirwana tilapia fingerlings was commercial feed with supplementation of Gamal leaves flour 10% kg−1 feed.

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ANALYSIS OF DIFFERENT C:N RATIOS IN THE BIOFLOC SYSTEM ON THE GROWTH OF Pangasius hypophthalmus (Sauvage, 1878)

e-Jurnal Rekayasa dan Teknologi Budidaya Perairan ◽

10.23960/jrtbp.v9i1.p1075-1084 ◽

2020 ◽

Vol 9 (1) ◽

pp. 1075

Author(s):

Akbar Maulana Sasry ◽

Supono Supono ◽

Wardiyanto Wardiyanto

Keyword(s):

Growth Rate ◽

C:N Ratio ◽

Daily Growth Rate ◽

Daily Growth ◽

Growth And Survival ◽

Weight Growth ◽

Randomized Design ◽

Completely Randomized Design ◽

Aquaculture Waste ◽

Cultivation Environment

The development of catfish culture affects increasing waste in the waters. Aquaculture waste containing high nutrients has the potential to damage the cultivation environment. The Biofloc system in catfish farming can break down NH3 waste into flocks that can be consumed directly by fish. This study aims to analyze the growth and survival rate of catfish in biofloc systems with different C:N ratios. The research design used was a completely randomized design (CRD) with four treatments and three replications. Siamese catfish seeds were maintained in an aquarium container size 40 x 30 x 30 cm for 40 days with treatment media A (maintenance without biofloc), treatment B C:N ratio 15, treatment C C:N ratio 20, and treatment D C:N ratio 25. The results showed that the biofloc system with different C:N ratios had significant effect on the weight growth, daily growth rate, and feed convertion ratio of catfish. The best treatment for growth and viability of catfish is C:N ratio 25.

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UTILIZATION OF TOFU AND TAPIOCA INDUSTRIAL LIQUID WASTE FOR NILE TILAPIA (Oreochromis niloticus) CULTURE WITHIN DIFFERENT BIOFLOC SYSTEMS

e-Jurnal Rekayasa dan Teknologi Budidaya Perairan ◽

10.23960/jrtbp.v7i1.p763-774 ◽

2018 ◽

Vol 7 (1) ◽

pp. 763

Author(s):

Suryo Kunindar ◽

Eko Efendi ◽

Supono Supono

Keyword(s):

Oreochromis Niloticus ◽

Nile Tilapia ◽

Liquid Waste ◽

Daily Growth Rate ◽

Daily Growth ◽

Randomized Design ◽

Nile Tilapia Oreochromis Niloticus ◽

Absolute Growth ◽

Completely Randomized Design ◽

Culture Container

Liquid waste produced by tofu and tapioca industry was approximately 1,5-2 m3 and 4-6 m3 per day respectively. Tapioca liquid waste has concentration of carbon around 119,11 mg/l, while tofu liquid waste has around 133,03 mg/l of nitrogen in concentration. Therefore both of these waste have the potential to be used as biofloc that utilized as additional feed with high protein content for nile tilapia. The aim of this research was to know interaction between C/N ratio and place of biofloc production to the growth of nile tilapia. This research used completely randomized design based on factorial experiment which consisted of two level of each factor and three repetition. Level of C/N ratio were 15 and 20 whereas level of place of biofloc production were inside and outside fish culture container. The result of this research showed that interaction between place of biofloc production and C/N ratio affected the growth of nile tilapia. The treatment inside biofloc production with 20 C/N ratio gave provided the highest absolute growth (3,26 g) and daily growth rate (0,082 g per day).

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