UJI KOMPARATIF HORMON HUMAN CHRORIONIC GONADOTROPHIN (HCG), OVAPRIM, DAN SPAWNPRIM PADA PEMIJAHAN IKAN LELE SANGKURIANG (Clarias sp.)

The results of spawning in sangkuriang catfish farming do not always go according to the expected results, as many eggs died before hatcing. Therefore, it is necessary to use spawning hormones which can improve egg quality in order to increase profits in cultivation. This research was aimed to determine the difference on success performance of sangkuriang catfish using HCG, Ovaprim, and Spawnprim. This research used a randomized block design (RAK) with 3 treatments i.e P1 (HCG 500 IU/kg), P2 (Ovaprim 0,5 ml/kg), P3 (Spawnprim 0,5 ml/kg) and 3 groups of repetition i.e K1 (spawning group day-1), K2 (spawning group day-2), and K3 (spawning group day-3). The results of this research showed that using Ovaprim hormone had the highest value than other treatments like on latent time 606±17,78 minutes, egg fertilization percentage 75±2,65%, and egg hatching percentage 69,33±5,69%. Then on egg fecundity and egg diameter showed no significant effect with other treatments.Hasil pemijahan pada usaha budidaya ikan lele sangkuriang (Clarias sp.) tidak selalu berjalan sesuai dengan hasil yang diharapkan, seperti telur banyak mengalami kematian sebelum menetas. Oleh karena itu perlu adanya penggunaan hormon pemijahan yang dapat meningkatkan kualitas telur guna meningkatkan keuntungan dalam usaha budidaya. Tujuan dari penelitian ini adalah mengetahui perbedaan performa keberhasilan pemijahan pada ikan lele sangkuriang melalui penyuntikan hormon HCG, Ovaprim, dan Spawnprim. Penelitian ini menggunakan metode rancangan acak kelompok (RAK) yang terdiri dari 3 perlakuan yaitu P1 (HCG 500 IU/kg bobot tubuh), P2 (Ovaprim 0,5 ml/kg bobot tubuh), P3 (Spawnprim 0,5 ml/kg bobot tubuh) dan 3 kelompok ulangan yaitu K1 (kelompok pemijahan hari ke-1), K2 (kelompok pemijahan hari ke-2), dan K3 (kelompok pemijahan hari ke-3). Hasil penelitian ini menunjukkan penyuntikan dengan hormon Ovaprim memiliki nilai tertinggi dibandingkan dengan perlakuan lainnya yaitu pada parameter waktu laten sebesar 606±17,78 menit, persentase pembuahan telur sebesar 75±2,65%, dan persentase penetasan telur sebesar 69,33±5,69%. Kemudian pada hasil fekunditas telur dan diameter telur menunjukkan hasil yang tidak signifikan dengan perlakuan lainnya

MATURASI IKAN LELE MUTIARA Clarias gariepinus BETINA DENGAN ESTRADIOL-17? MELALUI PAKAN

Some problems in catfish culture are the spawning circle, female catfish begin to mature gonad at 10 months, and after 1,5 months can spawn again. The purpose of this study was to evaluate the process of accelerating maturation female mutiara catfish with the addition Estradiol-17? by oral treatments. The study was design used 3 treatments : 0 ml/kg feed, 0,4 ml/kg feed, 0,6 ml/kg feed with three individual replications. The result showed that the addition of Estradiol-17? significantly affected on reproductive performance : Gonado Somatic Index (GSI) 102,3% and eggs diameter 16,4% in female mutiara catfish compared with 0 ml/kg feed. Key words : Clarias gariepinus, Eggs Diameter, Estradiol-17ß, Gonadosomatic Index (GSI), Reproductive Performance

RELATIVE FECUNDITY, FERTILIZATION DEGREE AND HATCHING DEGREE OF FEMALE GOLDFISH (Carassius auratus) WITH RANGRANG ANTS EGG (Oecophylla smaragdina) AND OOCYTE DEVELOPER COMBINATION

Length of time entering readiness early reproduction so that the relative fecundity and the low degree of fertilization and the degree of hatching in the goldfish hatchery are a challenge in the effort to provide goldfish seeds in quality and quantity. The effort was made by combining kroto and oocyte developer in the female goldfish. This experiment was carried out in September 2019-March 2020 at the Aquatic Productivity Laboratory of the Faculty of Agriculture, University of Lampung. The test fish used were 60 females 5-month-old brood stock, with an average weight of 14.69±3.69 g. This study used a completely randomized design using two factors, kroto (g / kg of fish) and oocyte developer (ml / kg of feed) with two levels each: K1O1 (0 + 0), K2O1 (30 + 0), K1O2 (0 + 0.5), and K2O2 (30 + 0.5) and 3 replications for each treatment. The results showed that factor K (kroto) and factor O (oocyte developer) had no effect on the relative fecundity of female goldfish during 8 weeks of maintenance. Meanwhile, the combination of kroto and oocyte developer affected the relative fecundity of the female goldfish at the 8th week of rearing, the degree of fertilization, and the degree of hatchin

DEVELOPMENT AND SURVIVAL RATE OF GIANT SHRIMP LARVA (Macrobrachium rosebergii de Man) GIMacro II AT DIFFERENT SALINITIES

GIMacro II prawn larvae is able to grow well at a salinity of 8-15 ppt. This condition can be improved by improving the methods of adaptation to changes in salinity prawn larvae production activities, by determining the pattern of changes in salinity are right. Salinity media through osmotic pressure affect the physiological activity, where the cells in body organs prawns should be in liquid media with ionic composition and concentration of the same with the environment. Having obtained the optimum salinity on larval rearing prawns GIMacro II in different salinity media is expected to produce a population of prawns GIMacro II with superior durability specific to environmental conditions, which can then be directed to improve the utilization of marine resources to the salinity of the best. This research aims were to study the growth and survival of larvae prawns GIMacro II reared on media of different salinities. The study used completely randomized design with three treatments and three replications. The treatments were larval rearing prawns GIMacro II at different salinities (10 ppt, 12 ppt, and 14 ppt). The results showed that the culture of prawn larvae GIMacro II at different salinity affect significantly on growth and survival of larvae prawns GIMacro II.  The highest development of GIMacro II prawn larvae obtained from 12 ppt salinity treatment (7.13 ± 0.03%) and the highest survival rate was obtained also from 12 ppt salinity treatment (67.67 ± 4.51%

Diversity and Condition Analysis of Coral Reef in Lahu Besar Island, Ringgung, Pesawaran District

The aims of this study is to determine the diversity and condition of coral reef ecosystems in the island of Lahu Besar, Ringgung. Some parameters were observed are percent cover and condition of coral reefs, composition and density of coral species, and water quality include salinity, temperature, clarity, waters current, pH, and sedimentation. The surface temperature at the time of observation average of 30-31 oC and salinity of sea water an average of 32 - 34 o/oo. The clarity in the study area is 5 meters. Distribution of reefs founded in the Lahu Besar bay to ± 10 m in depth. The substrate dominated by sand and dead coral. The Percent cover of live coral is about 10.5 to 52.9%. The other form of covered substrate consist of Enhalus acoides, Sargassum echinocarpum andHalimeda micronesica. The results showed that the density of the dominant species of coral stones at each station is about 0.1 to0.63 ind / m. The coral reef was dominated in Station I was kind of Acropora nobilis, Station II is Montipora florida, and Station III is Acropora nobilis and Acropora formosa. Diversity index values  obtained at each station is about 0.80 to 1.68

Pengaruh Pemberian Ekstrak Tembakau (Nicotiana tobacum) sebagai Bahan Anestesi terhadap Kondisi Hematologi Ikan Nila (Oreochromis niloticus)

Ekstrak tembakau merupakan bahan alami yang dapat digunakan sebagai bahan anestesi dalam kegiatan transportasi  ikan. Tembakau mengandung senyawa flavonoid nikotin yang dapat menekan aktivitas ikan selama dilakukannya transportasi. Penelitian ini dilakukan pada bulan Februari-Maret 2018 di Laboratorium Peikanan dan Kelautan Fakultas Pertanian Universitas Lampung yang bertujuan untuk mengetahui pengaruh ekstrak tembakau (Nicotiana tabacum) terhadap komponen hematologi ikan nila (Oreochromis niloticus) pada sistem transportasi kering. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) dengan 4 konsentrasi ekstrak tembakau yaitu 0 ml/l, 1,6 ml/l, 6,3 ml/l dan 25,1 ml/l. Parameter uji yang diamati meliputi toksisitas ekstrak tembakau, waktu kecepatan pemingsanan, lama pulih sadar, kadar hematologi meliputi nilai hematokrit, total eritrosit, total leukosit, total monosit, total neutrofil, total limfosit, survival rate, dan kualitas air. Hasil penelitian menunjukan bahwa ekstrak tembakau memberikan pengaruh terhadap benih ikan nila setelah dilakukannya transportasi, konsentrasi 6,3 ml/l dan 25,1 ml/l menyebabkan kadar hematologi pada benih ikan nila melebihi dari kisaran optimum.

MATURASI LELE MUTIARA Clarias gariepinus BETINA MELALUI PENAMBAHAN HORMON OODEV DAN ESTRADIOL-17ß PADA PAKAN

The problem in Mutiara strain of North African catfish Clarias gariepinus culture is that the production of both larvae and seeds is still inhibited by the seasonal reproductive cycle where the catfish only spawn once during the spawning season.  The purposes of this study were to evaluate the effect of administration of oodev and estradiol-17ß on the maturity process and to determine the best doses in accelerating the maturion of female Mutiara strain. This study used a Completely Randomized Design with 5 treatments and 3 individual replications. The treatments were combination between dose Oodev (PMSG and Anti-Dopamine) and dose Estradiol-17ß in feed (both doses in ml/kg feed):A(0+0), B(0.5+0), C(0+0.6), D(0.5+0,6), E(1+1). The results of this study showed that the administration of Oodev and Estradiol-17ß significant affect on gonadal maturity index about 82.21% compared to control and acclerating maturation of female mutiara strain with doses the best is the treatment E (oodev 1 ml/kg feed+estradiol-17ß 1 ml/kg feed).Key words: Clarias gariepinus, dose, estradiol-17ß, maturation, oode

KAJIAN PENAMBAHAN TEPUNG AMPAS KELAPA PADA PAKAN IKAN BANDENG (Chanos chanos)

Ikan bandeng (Chanos chanos) merupakan salah satu komoditas perairan payau yang potensial untuk dibudidayakan. Penyediaan benih dan pakan yang baik secara kualitas maupun kuantitas sangat diperlukan demi meningkatkan produksi ikan bandeng. Ampas kelapa adalah limbah pertanian yang dapat digunakan sebagai campuran bahan baku pakan ikan melalui proses penepungan. Penggunaan tepung ampas kelapa ini diharapkan dapat mengurangi penggunaan bahan baku pakan impor yang harganya mahal. Penelitian ini bertujuan untuk mengetahui jumlah penambahan ampas kelapa yang optimal pada pakan untuk pertumbuhan ikan bandeng. Penelitian dilaksanakan pada bulan Januari – Maret 2017 bertempat di Desa Purworejo Kecamatan Pasir Sakti Kabupaten Lampung Timur. Penelitian menggunakan 4 perlakuan dengan 3 kali ulanganyaitu Perlakuan A (Pelet komersil), B (Pelet komersil + tepung ampas kelapa 10%), C (Pelet komersil + tepung ampas kelapa 20%) dan D (Pelet komersil + tepung ampas kelapa 30%). Parameter yang diamati yaitu laju pertumbuhan (pertumbuhan mutlak dan harian), efisiensi pakan, identifikasi dan kelimpahan fitoplankton serta parameter pendukung yaitu kualitas air. Hasil penelitianmenunjukkan bahwa pada parameter laju pertumbuhan (pertumbuhan mutlak dan harian) serta efisiensi pakan perlakuan D berbeda nyata dengan perlakuan A, B, dan C. Akan tetapi perlakuan A, B dan C tidak berbeda nyata. Kesimpulan yang didapat bahwa penggunaan tepung ampas kelapa dengan jumlah maksimal 20% tidak memberikan pengaruh terhadap laju pertumbuhan dan efisiensi pakan pada ikan bandeng