Julius Sampekalo
Fakultas Perikanan dan Ilmu Kelautan, Universitas Sam Ratulangi. Jl. Kampus Unsrat Bahu, Manado 95115, Sulawesi Utara, Indonesia

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Pengaruh beberapa jenis pakan hijauan terhadap pertumbuhan ikan Koan Stenopharyngodon idella Babo, Desmianti; Sampekalo, Julius; Pangkey, Henneke
e-Journal BUDIDAYA PERAIRAN Vol 1, No 3 (2013)
Publisher : e-Journal BUDIDAYA PERAIRAN

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The aim of this research was to determine effect of feed plants on growth of grass carp, Stenopharyngodon idella. Grass carp used had an average length of 12.8 cm and weight of 21.00 g. Fish were kept in 12 pouch nets with a density of 8 fish/net. Fish was fed in et libithum, twice a day. This research used Completely Randomized Design with four treatments: A Pennistum purpureum, B Eichornia crassipes, C Pistia stratiotes and D Azolla pinnata, each with three replications. Data from each treatment were statistically analyzed using analysis of variance and LSD. Research results showed that growth of fish in treatment C was significantly different as compared to other treatments. Length of fish reached 3.30 cm, absolute growth 22.12 g and relative growth achieved 103.60%. thus, application of feed plant Pistia stratiotes might improved growth of grass carp.
Pertumbuhan ikan kuwe putih Caranx sexfasciatus di karamba jaring apung yang diberi pakan rucah dengan bahan tambahan yang berbeda Mansauda, Grace F; Sampekalo, Julius; Lumenta, Cyska
e-Journal BUDIDAYA PERAIRAN Vol 1, No 3 (2013)
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The use of trash fish ( Treatment A ), trash fish + cassava( Treatment B), pellets+ trash fish ( Treatment C ) and a mixture of trash fish + cassava + pellets ( Treatment D ) as feed had been conducted to evaluate its effect on growth of Caranx sexfasciatus. This research was carried out inTelengen Bay waters, Central Tabukan District, Sangihe Islands Regency. Fish with weighing 60,9 -62,9 g were distributed in 12 net cages measuring 3x1x1 m with the density of 5 fish each. Fish were fed three times a day for seven weeks. Fish weight was measured every week. At the end of experiment, the individual weight of fish ranged from 168,7 to 222,8 g in with the highest average weigth gain was achieved in treatment A namely 222.8 g (354.2%)), followed by treatment C 178.0 g (286.6 %) treatment D 170.08 g (280.5%), and treatment B as much as 168.7 g (274.3%). Statistical analysis displayed that weight gain of fish in treatment A was significantly different as compared to that of treatments B, C, and D. There was no significant differencesbetween treatment B, C, and D. Food conversion ratio of treatment A was significantly different compared to other treatments. Food conversion ratio of treatment A was 2.80, B 4.25, C 3.70, D 3.88. as conclusion, the use of trash fish without supplementaion with others ingradients resulted in the highest absolute and relatif growth of fish and the lowest food conversion ratio of 2.80 as compared to other treatments. Keywords: Caranx sexfasciatus, weight gain, food conversion ratio, floting net cage
Pertumbuhan Benih Ikan Nila (Oreochromis niloticus) dengan Menggunakan Pakan Komersil yang Diberi Tambahan “Bakasang” Mujiono, Faisal; Sampekalo, Julius; Lumenta, Cyska
e-Journal BUDIDAYA PERAIRAN Vol 3, No 1 (2015)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/bdp.3.1.2015.6954

Abstract

The objectives of research were to evaluate the effect bakasang-supplemented commercial diet on nile tilapia growth and to find the optimum dosage of bakasang to be supplemented in feed. The research was conducted at Laboratory of Nutrition and Fish Feed Technology.  Fish weighing 0,9-1,7 g were palced in 15 aquaria at a density of 10 individuals/aquarium. Experimental design was complete randomized design with five treatments namely A (0% bakasang), B (2% bakasang), C (3% bakasang), D (4% bakasang), E (5% bakasang), each with three replications. Fish were fed three times a day as much as 5%/body weight. Growth of fish was observed every week. Research results showed that the lowest absolute growth, relative growth and feed efficiency  were observed in treated with 0% bakasang (êG=20.44 g; GR=148.08%; dan NEP=58.06%) while the highest was obtained in fish treated with 4% bakasang (êG=35,55 g; GR=262.17%; NEP=80.53%).  Analysis of variance displayed the use of bakasang significantly affect absolute growth, relative growth. It was concluded that feed supplemented with 4% bakasang gave better absolute growth, relative growth and feed efficiency as compared to other feed.   Keywords: growth, “bakasang”, absolute growth, relative growth, feed efficiency,  nile tilapia
Pengaruh Pemberian Pakan Komersial yang Berbeda pada Pertumbuhan Ikan Nila Oreochromis niloticus Hamadi, Martha F; Sampekalo, Julius; Lantu, Sartje
e-Journal BUDIDAYA PERAIRAN Vol 3, No 1 (2015)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/bdp.3.1.2015.6955

Abstract

This research intended to study the growth of nile tilapia and commercial food conversion.  The research was conducted at Laboratory of Nutrition and Fish Feed Technology, Faculty of Fisheries Sam Ratulangi University Manado.  Fish feed used were Comfeed (Treatment A), Bintang (Treatment B) dan Lokal Food  (Treatment C).  Feeding dosage was 5% per body weight per day and feeding frequency was three times a day.  The research used complete randomized design with three treatments each with three replications. Research results showed that treatment A had absolute growth 257,67 g, , relative growth 160,37% and food conversion ratio 1,81 while treatment B had absolute growth 240,67 g, relative growth 152,05% and FCR 2.36,   and treatment C 235,00 g absolute growth, relative growth 147,04% and FCR 2.41.  Statistic analysis found  abosolute growth of fish in treatment A different significantly compared to treatment B and C.   Treatment A and B had similar effect but different significantly compared to treatment C.  It could be concluded that the use of comfeed was better to increase fish growth and FCR as compared to treatment B and C.   Keywords: growth, nile tilapia, food conversion ratio, commercial feed
Pemanfaatan tepung kulit pisang kepok (Musa balbisiana colla) dalam formulasi pakan ikan nila (Oreochromis niloticus) Jeharu, Albertus A.Y; Lumenta, Cyska; Sampekalo, Julius
e-Journal BUDIDAYA PERAIRAN Vol 3, No 3 (2015)
Publisher : e-Journal BUDIDAYA PERAIRAN

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The objectives of this research was to determine the effect of feeding with different compositions of meal banana skin to the relative growth, absolute growth, feed efficiency and the best value for tilapia fish. This research was conducted at the Laboratory of Aquaculture Technology Faculty of Fisheries and Marine Sciences of Sam Ratulangi University. The fish samples used in the study was tilapia fish with a length of 3-5 cm with an average weight of 0.8-1 g.  Feed used as treatments contanined different banana skin powder including treatment A:10%, B 20%,  C 30%,  D 40%, and E 50% banana skin powder. Fish was cultured in an aquarium equipped with a recirculation system. The parameters observed included absolute growth, relative growth and feed efficiency value. The experimental design used was complete randomized design (CRD) with five treatments, each with three replications. The results showed that feeding with feed containing 20%banana skin powder gave the highest absolute growth value of 2.93. Feeding with 10% banana skin powder gave the highest relative growth (363%) the highest feed efficiency value is 46.6%. Keywords: banana skin powder (Musa balbisiana colla), absolute growth, relative growth, feed efficiency, Oreochromis niloticus
Analysis of sago starch fermented with aerobic and anaerobic processes as alternative material for fish meal Wuniarto, Erwin; Sampekalo, Julius; Lumenta, Cyska
AQUATIC SCIENCE & MANAGEMENT (Jurnal Ilmu dan Manajemen Perairan) Vol 2, No 2 (2014): Oktober
Publisher : Master Program of Aquatic Sciences

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Title (Bahasa Indonesia): Analisis pati sagu yang difermentasi dengan proses aerob dan anaerob sebagai bahan alternatif pengganti tepung ikan Fish meal is commonly used as the main ingredient in aqua feeds. In this study, sago (Metroxylon spp.) starch was fermented through aerobic and anaerobic processes using Rhizophus sp. The duration of fermentation was 10 days. Based on proximate analysis, the unfermented sago starch had protein content of 1.11%, while the fermented one showed five to eight times increased protein level. The carbohydrate, lipid, and ash contents were found to decline in both aerobic and anaerobic fermentation. On the other hand, water content and crude fiber increased in both aerobic and anaerobic processes. Tepung ikan umumnya digunakan sebagai bahan baku utama dalam pakan organisme budidaya. Dalam penelitian ini, bahan pati sagu (Metroxylon spp.) difermentasi secara aerob maupun anaerob dengan menggunakan Rhizopus sp. Lamanya fermentasi adalah 10 hari. Berdasarkan hasil uji proksimat, kandungan protein pati sagu tanpa fermentasi adalah 1,11 %, sedangkan bahan pati sagu yang difermentasi memperlihatkan peningkatan kandungan nilai proteinnya sebanyak lima sampai delapan kali. Kandungan karbohidrat, lemak, dan kadar abu berkurang pada kedua fermentasi aerob dan anaerob. Sebaliknya, kadar air dan serat kasar meningkat pada kedua proses aerob dan anaerob.
Physical evaluation on freshwater crayfish, Cherax quadricarinatus, feed using several gluten materials Khartiono, Lady D.; Sampekalo, Julius; Mingkid, Winda M.
AQUATIC SCIENCE & MANAGEMENT (Jurnal Ilmu dan Manajemen Perairan) Vol 2, No 1 (2014): April
Publisher : Master Program of Aquatic Sciences

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Title (Bahasa Indonesia): Uji fisik pakan lobster air tawar, Cherax quadricarinatus, yang menggunakan beberapa bahan perekat The objective of this study was to evaluate the physical parameters of feed for freshwater crayfish (Cherax quadricarinatus) using different glutens. This study used a completely randomized design with four treatments and three replications. Treatment A was feed with starch gluten, treatment B was feed with sago gluten, treatment C was feed with seaweed gluten and treatment D was a commercial feed (control). ANOVA showed that the treatments gave a significant effect (P <0.05) on the breaking rate in the water, sinking speed, homogeneity, and hardness. The results showed that feed using seaweed gluten is very good to use. Feed with starch gluten was also better than feed of sago gluten. However, for sinking speed, control diet and starch gluten-based feed were faster than that of seaweed gluten. The result for water quality analysis including temperature, pH, DO and ammonia during the study showed tolerable ranges for freshwater crayfish. Penelitian ini bertujuan untuk menguji secara fisik pakan lobster air tawar (Cherax quadricarinatus) yang menggunakan beberapa bahan perekat. Penelitian ini menggunakan rancangan acak lengkap (RAL) dengan empat perlakuan dan tiga ulangan. Perlakuan A pakan dengan bahan perekat kanji, perlakuan B pakan dengan bahan perekat sagu, perlakuan C pakan dengan bahan perekat rumput laut dan perlakuan D adalah pakan komersil (kontrol). Hasil analisis ragam menunjukkan bahwa antara perlakuan memberikan pengaruh nyata (P<0,05) terhadap kecepatan pecah pakan dalam air, dispersi pakan, kecepatan tenggelam, homogenitas, dan tingkat kekerasan. Pakan dengan bahan perekat rumput laut sangat baik untuk digunakan. Pakan dengan bahan perekat tepung kanji juga lebih baik dibandingkan pakan berbahan perekat sagu. Tetapi untuk kecepatan tenggelam pakan kontrol dan pakan berbahan perekat kanji lebih cepat dibandingkan pakan berbahan perekat rumput laut. Hasil analisis kualitas air meliputi suhu, pH, DO dan amonia selama penelitian menunjukkan masih dalam batas kisaran yang bisa ditoleransi lobster air tawar.
Pemanfaatan tepung cangkang kijing taiwan untuk pertumbuhan kijing taiwan (Anodonta woodiana) Runtu, Raymond Y.A.; Lumenta, Cyska; Sampekalo, Julius
e-Journal BUDIDAYA PERAIRAN Vol 4, No 3 (2016)
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The purpuse of this research was to determine the effect of shell powder of Taiwanese mussel (Anodonta woodiana) at different doses on absolute growth, relative growth and survival rate of Taiwanese mussel. The treatment dosages of shell powder included A: 0 ppm,  B: 10  ppm, C: 20 ppm, D: 30 ppm, and E: 40 ppm. Experimental design used was Complete Randomized Design with five treatments, each with three replications.  The results showed that supplementation of 40 ppm of shell powder resulted in the best absolute growth and relative growth, namely 0.475 g and 1.84% respectively. Survival rate of Taiwanese mussel in all treatments during the experimental period was 100%.   Keywords:  Anodonta woodiana, Taiwanese mussel, shell powder, absolute growth, relative growth, survival rate
Pengaruh pemberian beberapa jenis pakan pada pertumbuhan ikan kerapu Cantang Epinephelus sp di Karamba Jaring Apung di Teluk Talengen Kepulauan Sangihe Tumadang, Liswara S.N.; Sampekalo, Julius; Lantu, Sartje
e-Journal BUDIDAYA PERAIRAN Vol 4, No 3 (2016)
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The research was conducted in floating net cage for at Talengen Island Sangihe to study the growth of grouper (46-70 g in average) fed various type of feed including fish flesh, pellet, cassava, sago) for six weeks, and to determine the food conversion ratio of each food type. The treatments consisted of A (fish flesh), B (fish flesh + cassava), C (fish flesh+sago), D (pellet). Fish was culture in 12 floating net cages measuring 1x1x1,5 m each, 10 fish/cage. Research results showed that the highest weight gain was achieved in fish in treatment C (87.6%), followed by treatment A (76.1%) , B (69.8%), and D (52.5%).  Statistically, treatment C was significantly different  compared to treatment A, B and D. The use of fish flesh combined with sago was able to improve growth of grouper Kata kunci : Kerapu Cantang,  growth, food conversion ratio, floating net cage
Pemanfaatan bungkil kelapa fermentasi dalam pada ikan nila (Oreochromis niloticus) Horopu, Meyriska C.; Sampekalo, Julius; Lantu, Sartje
e-Journal BUDIDAYA PERAIRAN Vol 6, No 3
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The purpose of this study was to determine the concentration of the use of the best fermented coconut pulp in feed on the growth of tilapia.  The research  used 12  nets  measuring 1x1 m placed in a concrete pond measuring 3.5 x 5 cm. The treatments were A (without fermented coconut pulp), B (10% fermented coconut pulp), C (20% fermented coconut pulp), and D (30% fermented coconut pulp). The experimental method used was a completely randomized design with 4 treatments and 3 repetitions. Data collected were absolute growth, daily growth, relative growth, and feed efficiency. The results of the variance analysis showed an influence in the growth of tilapia size 5-8 cm. The best growth and feed efficiency value occurred in treatment D Thus  the use of  30% fermented coconut pulp in fish food could improve the growth of tilapia.Key words : fermented coconut pulp, tilapia, growth feed efficiency