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Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology
Published by Universitas Diponegoro
ISSN : 18584748     EISSN : 25490885     DOI : -
Core Subject : Education,
SAINTEK PERIKANAN (p-ISSN: 1858-4748 dan e-ISSN: 2549-0885) adalah jurnal ilmiah perikanan yang diterbitkan oleh Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro. Jurnal ini diterbitkan 2 (dua) kali setahun (Februari dan Agustus).
Arjuna Subject : -
Articles 492 Documents
PROSPEK PENERAPAN “CO-MANAGEMENT” UNTUK PENGELOLAAN SUMBERDAYA PESISIR DI KEPULAUAN KARIMUNJAWA, JEPARA (Implementation of “Co-management” For Coastal Resources Management In Karimunjawa Islands, Jepara) Dinar Isyana Syah Rani; Dian Wijayanto; Agus Indarjo; Indah Susilowati
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 15, No 2 (2019): SAINTEK PERIKANAN
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (632.357 KB) | DOI: 10.14710/ijfst.15.2.99-104

Abstract

Kegiatan pemanfaatan sumberdaya pesisir yang tidak terkontrol menyebabkan tekanan terhadap keberlangsungan ekologi. Penyelesaian masalah tersebut salah satunya dengan  kemitraan semua stakeholder yaitu dengan kesadaran  tentang adanya permasalahan yang terjadi dan  tanggung jawab dalam mengambil keputusan. Tujuan dari penelitian ini adalah menganalisis co-management sumberdaya pesisir di Kepuluan Karimunjawa dengan melibatkan seluruh pemangku kepentingan yang terkait.. Data penelitian dikumpulkan pada bulan April 2018 dengan melakukan observasi dan wawancara mendalam terhadap informan kunci dengan jumlah 140 orang yang terdiri dari terdiri atas pelaku usaha, pemerintah dan masyarakat dan akademisi. Analisis yang digunakan dalam penelitian ini dengan menerapkan konsep co-management dengan melihat dari 11 kondisi kunci. Hasil analisis co-management menunjukan perlunya dilakukan kerjasama antara pihak akademisi, pelaku usaha, masyarakat dan pemerintah  dengan hasil jumlah skor rata-rata 3,17 yang menunjukan bahwa keberhasilan pendekatan kemitraan sumberdaya perikanan di Kepulauan Karimunjawa dalam kondisi cukup. The activity of uncontrolled utilization of coastal resources causes pressure on ecological sustainability. One of the solutions to this problem is through the partnership of all stakeholders, with awareness the problems that occur and the responsibility for making decisions. The purpose of this study was to analyze the co-management of Coastal Resources in Karimunjawa Island by involving all relevant stakeholders. The research data was collected in April 2018 by conducting in-depth observations and interviews with key informants with 140 people consisting of according to business needs , government and society and academics. The analysis used in this study used the management concept together with looking at 11 key conditions. The results of co-management analysis indicate the need for cooperation between academics, businesses, communities and the government with the results of an average score of 3.17 indicating that it is related to partnerships in the Karimunjawa Islands in sufficient condition.
The Growth of Skeletonema costatum on Various Salinity Level’s Media Siti Rudiyanti
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 6, No 2 (2011): Jurnal Saintek Perikanan
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (203.265 KB) | DOI: 10.14710/ijfst.6.2.70-77

Abstract

ABSTRACT Skeletonema costatum is a good species phytoplankton for natural food since it has high chemical contents.  The research aims to know salinity influence to the growth of S costatum’s and its optimum salinity. Experimental method  is used with 4 treatments and 1 control. The primary research done to identify observation time and accurate interval salinity. Result of the primary research showed that S costatum’s growth can be observed clearly in every 18 hours and salinity level with interval of 3 0/00.  The salinity treatments used 230/oo, 260/oo, 290/oo, 320/oo, and 350/oo because of it’s salinity range of    S costatum. Cell density in each bottle sample is 20.000 cell/liter. The maximal population growth of       S costatum at salinity 23 0/00  is 2,5 x 104 cell /mL, salinity 26 0/00  is 2,58 x 104 cell/mL, salinity 29 0/00  is 3,03 x 104cell/m, and at control salinity 32 0/00  is 4,08 x 104 cell/mL, while at salinity 35 0/00  is 3,16 x 104 cell/mL. From the observation found that water quality of media is suitable to support population growth of S costatum. The best salinity for the growth of S costatum population is on the treatment of 32 0/00 salinity where the cell grown very fast and only need short time to reach out the top population. Whereas the optimum salinity is 33,26 0/00 on density of 3,48 x 104 cell/mL.                 Keywords : Skeletonema costatum, growth, optimum salinity.
SUBSTITUSI TEPUNG BUAH MANGROVE (Bruguiera gymnorrhiza) TERHADAP SIFAT FISIKA DAN KIMIA NAGET IKAN KURISI Substitution Oriental Mangrove Flour (Bruguiera gymnorrhiza) against Physical and Chemical Characteristic of Treadfin bream Fish Nugget Nabillah Pinka Almira Dhinendra; Eko Nurcahya Dewi; Romadhon Romadhon
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 11, No 1 (2015): JURNAL SAINTEK PERIKANAN
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (456.667 KB) | DOI: 10.14710/ijfst.11.1.57-61

Abstract

ABSTRAK   Naget ikan menggunakan bahan pengisi tepung tapioka menghasilkan naget yang keras dan nutrisi yang rendah.Substitusi tepung buah mangrove (Bruguiera gymnorrhiza) terhadap tepung tapioka pada naget ikan diharapkan dapat membantu memperbaiki mutu naget ikan. Penelitian ini bertujuan mengetahui formulasi terbaik dalam pembuatan naget ikan Kurisi dengan substitusi tepung buah mangrove dan mengetahui pengaruh substitusi tepung buah mangrove pada naget ikan terhadap sifat fisika dan kimia meliputi kekerasan, uji gigit, uji organoleptik, kadar air, protein, lemak, dan karbohidrat. Hasil penelitian menunjukkan naget ikan dengan substitusi tepung mangrove  memberikan perbedaan yang nyata (p< 0,05) terhadap seluruh parameter uji kecuali kadar air. Naget ikan Kurisi dengan substitusi tepung mangrove 50% : 50% merupakan produk yang terbaik dengan kriteria mutu: kekerasan (1105,79 g.f); uji gigit 7,13; kadar air 43,53%; protein 21,46%; karbohidrat 4,49;  dan lemak 3,35%. Produk tersebut memenuhi kriteria mutu naget ikan yang setara dengannaget ikan komersial.   Kata kunci : Tepung Mangrove, Substitusi,Naget, Ikan kurisi   ABSTRACT   Fish nugget using tapioca flour fillers produce hard and low nutrient of nugget. Substitution of Oriental Mangrove flour (Bruguiera gymnorrhiza) to tapioca flour in fish nugget expected to improve quality of nugget.The purpose of this research was to find out the best formation in the Treadfin bream fish nugget with Oriental Mangrove flour substitution and determine the effect of Oriental Mangrove floursubstitution on fish nuggets against physical and chemical characteritic include hardness, bite test, organoleptic test, moisture, protein fat, and carbohydrate content.The results showed that the fish nugget with the substitution of mangrove flour gave a significant difference (p<0,05) for all parameters except moisture content. Treadfin bream fish nugget with mangrove flour substitution 50%: 50% was the best product with quality criteria: hardness (1105.79 gf); bite test of 7.13; moisture content of 43.53%; protein content of 21.46%; carbohydrate content of 4.49; and fat content of 3.35%. The best organoleptic appearance values of 8.13; the smell of 8.07; taste of 8.33; texture of 7.2. The product found fulfills the criteria almost equivalent to a commercial fish nugget product.  Keywords : Mangrove flour, Substitution, Nugget, Treadfin bream Fish
Analysis Comparison Advantage of Effort Docking of System Slipway and Docking Lift in Ocean Fishery Port of Nizam Zachman of Jakarta Herry Boesono; Rahmi Hidayati
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 3, No 2 (2008): Jurnal Saintek Perikanan
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (139.777 KB) | DOI: 10.14710/ijfst.3.2.74-81

Abstract

Ocean Fishery Port of Nizam Zachman Jakarta (PPSNZJ) divided into two dock ship, there are dock slipway   (governmental property) and dock lift (private sector property). Aim of research is to know technical aspect and finansial aspect and elegibility of effort, to compare economic efficiency and the efficiency seen from earnings and expense and also to know analysis of effort by using statistika test between dock slipway and dock lift. Research used with deskriptif method with items research is technical aspect and finansial aspect of effort dock slipway and dock lift during november till december 2005 with observation method, interview and kuisioner. Result of research concluded that dock slipway use winch to draw ship from sea while dock lift use big krane to lift ship from sea to dock space, considering of finansial  aspect  that  is  two  dock  consider  with  estimate  10  year  forwards  that  laboured.  Analyse efficiency of effort that earning power of dock slipway bigger than dock lift. While efficiency base on earnings and expense, dock slipway is equal to 287,86 % and dock lift is equal to 355 %. Pursuant to statistical test mann-whitney that earnings, expense and advantage per month year 2005 that two dock is no real difference.   Keywords : PPSNZJ, technical aspect, aspect of finansial, elegibility of effort
SEBARAN UKURAN LOBSTER BATU (Panulirus penicillatus) DI PERAIRAN WONOGIRI JAWA TENGAH (Size Composition of Lobster (Panulirus penicillatus) in Wonogiri Waters, Central Java) Muhammad Zaenuddin; Denada Anggia Dwi Putri
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 12, No 2 (2017): SAINTEK PERIKANAN
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (241.833 KB) | DOI: 10.14710/ijfst.12.2.109-115

Abstract

 Kabupaten Wonogiri merupakan salah satu daerah yang terdapat penangkapan Lobster. Lobster batu (Panulirus penicillatus) merupakan jenis yang paling sering dominan tertangkap oleh krendet dan jaring hampar. Informasi tentang sebaran ukuran lobster yang tertangkap sangatlah diperlukan. Hal ini dilakukan guna memperoleh gambaran tentang pertumbuhan lobster serta mengetahui persamaan regresinya sebagai dasar pengelolaan lobster batu. Data diambil setiap satu bulan sekali selama enam bulan, pada periode Oktober 2013–Maret 2014 dan dianalisis dengan menggunakan analisis regresi linear sederhana. Hasil ukuran pertama kali tertangkap (L50%=56mm) kurang dari setengah panjang asimtotik (½ L∞=67mm). Hubungan panjang-berat lobster jantan yaitu W= 0,003L 2,68 dan lobster betina W= 0,0041L 2,59. Faktor kondisi pada lobster jantan (1,17) dan betina (1,10). Persamaan pertumbuhan Von Bertalanffy lobster jantan Lt = 136 (1-e-0,15(t+0,89)) dan lobster betina Lt = 123(1-e-0,19(t+0,65)), hal ini menunjukkan bahwa lobster jantan tumbuh lebih cepat dari lobster betina.   Central Java Province, exactly Wonogiri Regency, it is one of regions that there is Lobster catching. lobster (Panulirus penicillatus) was the dominant caught by krendet and covering net in Wonogiri waters. Information on size composition of lobster is very important. This was done to obtain an overview of lobster’s growth and  linear regression. Data taken every month for six months, on October until March  and processed with a simple linear regression. The result of first size of caught (L50%=56mm) is lower than the half of asymptotic length (½ L∞=67mm). Length-weight relationship of male lobster is W = 0,003L2,68 and female lobster is W = 0,0041L2,59. The condition factor of male (1,17) and female (1,10) lobster has equal of plupmness. Von Bertalanffy equation for male lobster is   Lt= 136(1-e-0,15(t+0,89)) and female lobster is Lt=123(1-e-0,19(t+0,65)), so it can be stated the male lobster growing faster than female lobster.  
Different Percentages of Gonad Maturity on the Fertility and Haching Rate in Artificial Breeding of Abalone (Haliotis Asinina) Suminto Suminto; Dyah Anggun Permana Sani; Titik Susilowati
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 5, No 2 (2010): Jurnal Saintek Perikanan
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (229.882 KB) | DOI: 10.14710/ijfst.5.2.54-60

Abstract

Abalone is one of the marine mollusk that has high economic value. Mass abalone cultivation requires the mature gonads broodstock to produce seeds, but the maturity of the gonads of male and female often can not be simultaneously. Artificial insemination using a solution of ammonia is one solution to produce abalone seed in the hatchery. Ammonia solution can increase motility, fertilization rate of eggs and abalone seed production, so the provision of seeds for cultivation of abalone is independent from nature. The research of artificial insemination was carried out at various levels of gonadal maturation dams abalone (H. asinina) to determine the percentage of fertility and hatching rate of eggs from each Gonad Maturity Level. In stadia gonadal recovery, no fertilization occurs, whereas in the gonads maturing stadia had fertilization and hatching rate 24.33 ± 2.08% and 22.12 ± 2.18%, respectively at ripe stadia, gonads had been fertilization and hatching rate were 94.67% ± 1.53% and 82.82% ± 3.58%, wasn’t recorded in the stadia spent fertilization did not occur because the eggs were released in culture media. Gonad Maturity Level, thus can be used in artificial insemination was the ripe gonadal stadia, which had the highest percentage of both levels of fertilization and hatching rate with a diameter ranging from 189.6-252.8 μm. Key Words: Abalone (H. asinine); Artificial breeding; Gonad Maturity Level; Hatching Rate
POLA SEBARAN, INDIKATOR KUALITAS LINGKUNGAN DAN EKOLOGI KOMUNITAS MANGROVE PULAU TUNDA(Distribution Pattern, Environmental And Ecological Quality Indicators Of Mangrove Forest Community Pulau Tunda) Syahrial Syahrial; Yudi Sastriawan
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 14, No 1 (2018): SAINTEK PERIKANAN
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (466.669 KB) | DOI: 10.14710/ijfst.14.1.43-51

Abstract

Ekosistem mangrove terdapat di seluruh pantai maupun pulau-pulau kecil Indonesia yang terpengaruh oleh pasang surut. Kajian pola sebaran, indikator kualitas lingkungan dan ekologi komunitas mangrove Pulau Tunda dilakukan pada bulan Januari 2014 dengan tujuan untuk mengetahui pola sebaran, indikator kualitas lingkungan dan ekologi komunitas mangrovenya. Sampel mangrove diambil menggunakan transek garis dan plot yang ditarik dari titik acuan (tegakan mangrove terluar) serta tegak lurus garis pantai sampai ke daratan. Kemudian transek garis tersebut dibuat petak-petak contoh (plot) yang berukuran 10 x 10 m2 untuk kategori pohon dan di dalam ukuran 10 x 10 m2 dibuat plot berukuran 1 x 1 m2 untuk kategori semai. Pola penyebaran mangrove Pulau Tunda dianalisis berdasarkan indeks Morisita. Sementara kualitas lingkungan hutan mangrove dianalisis menggunakan tutupan pohon, tutupan semai dan jumlah jenis semai yang ditemukan. Kemudian ekologi komunitas mangrove Pulau Tunda dianalisis berdasarkan indeks keanekaragaman, dominansi dan keseragaman. Hasil penelitian menunjukan bahwa pola penyebaran mangrove Pulau Tunda tergolong beraturan (regular), dimana terjadi interaksi negatif antar individu dalam memperebutkan ruang, unsur hara maupun cahaya matahari. Selain itu, kondisi hutan mangrove Pulau Tunda masih tergolong baik dengan tingkat kualitas lingkungan vegetasi mangrove 73.74%, keanekaragaman dan dominansi mangrovenya tergolong rendah (1.20 dan 0.52) dan keseragamannya tergolong labil (0.60). Mangrove ecosystems are found throughout the coast and small islands of Indonesia which are affected by tides. Distribution pattern studies, environmental quality indicators and the ecological mangrove community of Tunda Island were carried out in January 2014 with the aim to determine distribution patterns, indicators of environmental quality and ecology of the mangroves community. Mangrove samples were taken using line transects and plots drawn from reference points (outer mangrove stands) and perpendicular to the coastline to the mainland. The line transect is made of plots of sample size 10 x 10 m2 for the category of trees and in a size of 10 x 10 m2 a plot of 1 x 1 m2 is made in the seedling category. The pattern of distribution of mangroves of Tunda Island was analyzed based on the Morisita index. While the environmental quality of mangrove forests was analyzed using tree cover, seedling cover and number of seedlings found. The ecology of the Tunda Island mangrove forest community was analyzed based on the diversity index, dominance and uniformity. The results showed that the pattern of mangrove distribution of Tunda Island was regular, where there was a negative interaction between individuals in fighting over space, nutrients and sunlight. In addition, the condition of the Tunda Island mangrove forest is still relatively good with the level of environmental quality of mangrove vegetation 73.74%, the diversity and dominance of mangroves are relatively low (1.20 and 0.52) and uniformity is classified as unstable (0.60). 
PENERAPAN SELEKSI FAMILI F3 PADA IKAN NILA HITAM (Oreochromis niloticus) Tristiana Yuniarti; Sofi Hanif; Dian Hardianto
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 4, No 2 (2009): Jurnal Saintek Perikanan
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (293.022 KB) | DOI: 10.14710/ijfst.4.2.1-9

Abstract

ABTSRAKPemuliaan ikan nila di Indonesia merupakan kegiatan perekayasaan yang sangat penting dilakukan untuk menigkatkan mutu genetik ikan nila yang ada di masyarakat. Metode Seleksi Famili telah digunakan sebagai satu metode efektif untuk mendapatkan strain induk nila yang lebih unggul. Pada tahun 2005 telah berhasil membuat generasi pertama seleksi famili sebanyak 35 famili, tahun 2006 telah menghasilkan 49 famili dan tahun 2007 menghasilkan 39 famili. Masing-masing famili terdiri dari dua sub populasi yaitu induk jantan dan induk betina. Jumlah populasi hasil seleksi pada sub populasi jantan dan betina masing-masing dapat memenuhi jumlah top grad minimal 15 ekor jantan dan 15 ekor betina. Jumlah famili yang memijah 39 famili. Hasil cut off pada masing-masing sub famili mempunyai bobot rataan 120,14+7,3 g pada sub populasi jantan dan 97,36 + 2,6 g pada sub populasi betina. Mutu genetik yang diperoleh pada generasi F3 menghasilkan nilai heritabiliti sebesar 0,142 dengan respon seleksi 25,4 g. Proses seleksi masih perlu dilanjutkan kepada generasi ke-4 untuk memperoleh generasi yang lebih unggul.Kata Kunci: Tilapia, program pemijahan, seleksi familiABSTRACTGenetic improvement of tilapia in Indonesia is very important in order to improve the tilapia quality. Family selection method was known as an effective method to get higher quality brood stock. In 2005, 35 first generation of families selection were successfully done, in 2006, 49 families were produced and in 2007, 39 families were produced. Each family consisted of two sub population, i.e. male and female brood stocks. The number of male and female sub population selection could fulfill the top grade minimal number of 15 males and 15 females. 39 families spawned. The cut off results of each sub family had average body weight of 120.14 ± 7.3 g for male sub population and 97.36 ± 2.6 g for female sub population. The genetic quality which was obtained on F3 generation had a heritability value of 0.142 with selection respond 25.4 g. The selection process was still needed to be continued on F4 generation to get better quality generationKey words: Tilapia, breeding program, family selection
BUDIDAYA CACING TANAH SEBAGAI SUMBER PAKAN ALTERNATIF DALAM PEMELIHARAAN LELE DUMBO DI PONDOK PESANTREN HIDAYATULLAH, SEMARANG (The Farming of arthworms as an Alternative Feeding of Maintenance Catfish in Hidayatullah Boarding School, Gedawang, Semarang) Diana Chilmawati; Johanes Hutabarat; Istiyanto Samijan; Pinandoyo Pinandoyo; V. E. Herawati
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 9, No 2 (2014): JURNAL SAINTEK PERIKANAN
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (132.082 KB) | DOI: 10.14710/ijfst.9.2.49-52

Abstract

Pemenuhan kebutuhan pakan masih menjadi kendala dalam budidaya lele dumbo di pondok pesantren Hidayatullah Gedawang Semarang. Biaya untuk kebutuhan membeli pakan/pelet tergolong besar. Pemberian pakan cacing tanah (Lumbricus rubellus) sebagai pakan alternatif selain pellet dapat diterapkan untuk mengatasi permasalahan ketersediaan pakan di ponpes tersebut. Sehubungan dengan hal tersebut maka teknologi yang tepat adalah teknologi budidaya pakan alami sebagai pengganti/substitusi pakan buatan. Tujuan Pengabdian Kepada Masyarakat ini adalah untuk mengenalkan dan menerapkan teknologi budidaya cacing tanah (L. rubellus) sebagai pakan alternatif dalam budidaya lele dumbo pada kolam terpal di ponpes Hidayatullah, Desa Gedawang, Banyumanik, Semarang.             Hasil pengamatan tentang jumlah kematian benih lele selama kegiatan Pengabdian Kepada Masyarakat ini didapatkan Tingkat Kelulushidupan (Survival Rate/SR) lele dumbo yang dipelihara dengan penerapan pemberian pakan berupa pellet dan cacing tanah, SR nya lebih tinggi (89.83%) dibanding lele yang hanya diberi pakan pellet saja (71.16%).  Hasil pertumbuhan lele dumbo yang diberi pakan pellet dan cacing tanah juga menunjukkan lebih tinggi (72 kg) daripada pertumbuhan lele dumbo yang hanya diberi pellet saja (65 kg). Kata Kunci :    Cacing tanah (Lumbricus rubellus), pakan alternatif, lele dumbo (Clarias gariepius) Hidayatullah Islamic boarding school, Gedawang Semarang, having catfish farming as an alternative effort to support the school revenue. Feed is a component of fish production which absorbs more than 30% of the cost. This condition is perceived to be quite heavy for a boarding school to keep their fish culture running well. Earthworms (Lumbricus rubellus), can be used as an alternative feeding for the fish, can be applied to overcome the problems of availability on artificial food. Therefore, the application on live food organisms culture technology is the best solution to subtitute artificial feed. Introduction of earthworms cultivations technology is required to solve the procurement artificial feed problem for the fish farming that experienced by Hidayatullah Islamic Boarding Scholl, Gedawang, Semarang. Based on field trials show the result that the survival rate of the catfish that fed with the earthworms reaching 89.83 % after 71 days of culturing. Giving earthworms, can save the needs of artificial diets up to 28.84%. Catfish which fed with combination of pellets and earthworms grow faster with 72 kg in weigh biomass than the fish which only fed with artificial feed (65 kg). Based on these results, it can be concluded that the introduction of appropriate technologies such as earthworms’ cultivations, can reduce the use of artificial feed and increase the growth of African catfish. The use of earthworms feed can reduce feed costs up to 28.84%.   Key words : Earthworms (Lumbricus rubellus), alternative feeding, catfish (Clarias gariepius)
Gelatin Application of Nile Tilapia (Oreochromis niloticus) Bone to The Quality of The Jelly Candy Maryani Maryani; Titi Surti; Ratna Ibrahim
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 6, No 1 (2010): Jurnal Saintek Perikanan
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (82.898 KB) | DOI: 10.14710/ijfst.6.1.62-70

Abstract

The characteristic of a jelly candy is sweet in taste and has elastic texture. The elastic texture due to gelling agent addition such as carrageenan, sea weed, gum arabic, and gelatin. The Utilization of nile tilapia bone as the source of gelatin product is away to prevent gelatin that is not halal. The aim of the research was to know the concentration of nile tilapia bone gelatin which produced the best quality of jelly candies based on physical chemical characteristic as well as the member of Escherichia coli and hedonic value. The experiment was designed using a Completely Randomized Design with 3 treatments (9%, 10%, 11%) of nile tilapia bone gelatin concentrations. Each treatment was done in triplicate. Data of elasticity, moisture content, water activity, pH, sugar contents were analyzed with Analysis of Varians (ANOVA). A Honestly Significant Difference (HSD) test was conducted to find out the difference among the treatments. The data of hedonic quality was analyzed by a Kruskall Wallis test and continued by a Multiple Comparison. The result showed that the addition of 10% nile tilapia bone gelatin produced the best quality product which had the elasticity (14.20 Newton); moisture content (17.06%); Aw 0.785; pH 4.78; sugar content (48.23%); hedonic (8.13) and the product did not content Escherichia coli bacteria. Key Words : Jelly Candy, Nile Tilapia Bone Gelatin, Quality

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