JURNAL PERIKANAN

JURNAL PERIKANANJURNAL PERIKANA

Aplikasi Bioflok yang Dikombinasikan dengan Probiotik untuk Pencegahan Infeksi Vibrio Parahaemolyticus pada Pemelihaaran Udang Vaname (Litopenaeus Vannamei)

Budidaya udang yang dilakukan dengan sistem intensif ternyata banyak menimbulkan permasalahan. Adanya masalah penyakit di udang yang disebabkan oleh bakteri, virus, ataupun koinfeksi merupakan masalah yang harus ditangani. Penggunaan probitik dan bioflok merupakan salah satu cara untuk mengatasi penyakit yang ada. Selain itu, kombinasi tersebut diharapkan mampu meningkatkan performa sistem imun udang. Penelitian ini bertujuan untuk mengevaluasi penggunaan bioflok yang dikombinasikan dengan probiotik terhadap sistem imun udang vaname (Litopenaeus vannamei) yang di uji tantang dengan V. parahaemolyticus. Penelitian ini dilakukan selama 5 bulan. Perlakuan yang diberikan yaitu penambahan probiotik komersil dalam media budidaya dengan sistem bioflok pada pakan berupa kontrol negatif (tanpa probiotik + tanpa bioflok) (1), kontrol positif (media budidaya bioflok dan tanpa penambahan probiotik) (2), probiotik I + bioflok (3), probiotik II + bioflok (4), dan probiotik III + bioflok (5).. Hasil yang diperoleh untuk performa performa sistem imun udang. terbaik pada perlakuan 4 (probiotik II + bioflok) dengan hasil SR sebesar 76,67%, THC sebesar 9,7 x 106 ml-1, dan total jumlah bakteri sebesar 1.59 x 107

Application of Bioflocs Combined with Probiotics for Prevention of Vibrio Parahaemolyticus Infection In White Shrimp (Litopenaeus vannamei)

Shrimp farming with intensive system was causing many problems. The presence of disease problems in shrimp caused by bacteria, viruses, or co-infection was a problem that must be solved. The use of probiotics and biofloc was one way to overcome the existing diseases. In addition, the combination was expected to improve the performance of the shrimp immune system. This study aimed to evaluate the using of biofloc combined with probiotics against vannamei (Litopenaeus vannamei) immune system in the challenge test with V. parahaemolyticus. This research was conducted for 5 months. The treatments were the addition of commercial probiotics in the culture medium with biofloc system on the feed in the form of negative control (without probiotics + without biofloc) (1), positive control (biofloc culture medium and without probiotic adduction) (2), probiotics I + bioflok (3 ), probiotics II + biofloc (4), and probiotics III + bioflok (5). The results obtained for the performance performance of the shrimp immune system that the best in treatment 4 (probiotic II + biofloc) with SR yield of 76.67%, THC of 9.7 x 106 ml-1, and total bacterial count of 1.59 x 107.   Keywords: Vannamei, Probiotics, Biofloc, Immune System

EFEKTIVITAS PENGGUNAAN NITROSOMONAS DAN NITROBACTER UNTUK PERBAIKAN KUALITAS AIR MEDIA BUDIDAYA IKAN NILA (Oreochromis niloticus)

Tujuan dari penelitiana ini adalah untuk mengetahui efektivitas bakteri Nitrosomonas dan Nitrobacter terhadap peningkatan kualitas air media budidaya ikan Nila (Oreochromis niloticus) dan menganalisis pada perlakuan mana yang memberikan hasil yang terbaik. Metode penelitian yang digunakan adalah rancangan acak lengkap (RAL) yang terdiri dari  4 perlakuan dan diulangi 3  kali disetiap perlakuannya, yaitu perlakuan A (tanpa pemberian bakteri Nitrosomonas dan Nitrobacter), B (pemberian Nitrosomonas dan Nitrobacter 2 ml/L), C (pemberian Nitrosomonas dan Nitrobacter 2,5 ml/L), D (pemberian Nitrosomonas dan Nitrobacter 3 ml/L). Hasil penelitian menunjukan bahwa penggunaan  Nitrosomonas dan Nitrobacter memberikan pengaruh terhadap perbaikan kualitas air media budidaya ikan nila. Hasil penelitian menunjukkan perlakuan terbaik untuk peningkatan kualitas air media budidaya ikan nila (Oreochromis niloticus) terdapat pada perlakuan D dengan penggunaan Nitrosomonas dan Nitrobacter 3 ml/L yang menunjukkan kadar Ammonia dan kadar nitrit terendah dengan kadar nitrat tertinggi. Penggunaan Nitrosomonas dan Nitrobacter terhadap media budidaya ikan Nila (Oreochromis niloticus) memberikan nilai yang cukup efektif terhadap peningkatan kualitas air media budidaya. Perlakuan terbaik terdapat pada perlakuan D dengan nilai Ammonia terendah yakni 0.12 - 0.04 mg/L, kadar nitrit sebesar 0.004 - 0.05 mg/L, dan nitrat, 7.48-15.21 mg/L.Ikan Nila (O. niloticus) termasuk dalam salah satu jenis ikan air tawar yang memiliki nilai ekonomis tinggi. Harga ikan nila di pasar tradisional berkisar antara Rp 25,000-30,000 per kg. Saat ini, Ikan Nila menjadi salah satu jenis ikan yang telah mengalami perkembangan pesat di Indonesia. Akan tetapi, ada beberapa jenis penyakit yang menyerang sistem imun ikan Nila. Tujuan dari penelitiana ini adalah untuk mengetahui efektivitas bakteri Nitrosomonas dan Nitrobacter terhadap peningkatan kualitas air media budidaya ikan Nila (Oreochromis niloticus) dan menganalisis pada perlakuan mana yang memberikan hasil yang terbaik. Metode penelitian yang digunakan adalah rancangan acak lengkap (RAL) yang terdiridari 4perlakuan dan diulangi3 kali disetiap perlakuannya, yaitu perlakuan A (tanpa pemberian bakteri Nitrosomonas dan Nitrobacter), B (pemberian Nitrosomonas dan Nitrobacter 2 ml/L), C (pemberian Nitrosomonas dan Nitrobacter 2,5 ml/L), D (pemberian Nitrosomonas dan Nitrobacter 3 ml/L). Hasil penelitian menunjukan bahwa penggunaan Nitrosomonas dan Nitrobacter memberikan pengaruh terhadap perbaikan kualitas air media budidaya ikan nila. Hasil penelitian menunjukkan perlakuan terbaik untuk peningkatan kualitas air media budidaya ikan nila (Oreochromis niloticus) terdapat pada perlakuan D dengan penggunaan Nitrosomonas dan Nitrobacter 3 ml/L yang menunjukkan kadar Ammonia dan kadar nitrit terendah dengan kadar nitrat tertinggi. Penggunaan Nitrosomonas dan Nitrobacter terhadap media budidaya ikan Nila (Oreochromis niloticus) memberikan nilai yang cukup efektif terhadap peningkatan kualitas air media budidaya. Perlakuan terbaik terdapat pada perlakuan D dengan nilai Ammonia terendah yakni 0.12 - 0.04 mg/L, kadar nitrit sebesar 0.004 - 0.05 mg/L, dan nitrat, 7.48-15.21 mg/L

Use of NPK Fertilizer for Cultivating Eucheuma spinosum Seaweed at Different Doses on a Laboratory Scale

Seaweed is a low-level plant whose roots, stems and leaves cannot be distinguished from each other and is better known as a thallus. Seaweed is one of the leading fisheries commodities. This study aims to analyze the growth and carrageenan content of Eucheuma spinosum given Nitrogen, Phosphate and Potassium (NPK) fertilizer at different doses. The method used was an experimental method with a completely randomized design (CRD) consisting of 4 treatmentsa are P0 (control), P1 (2 g/l), P2 (2.5 g/l), and P3 (3 g/l). Each treatment was repeated 3 times. Data were analyzed using ANOVA, then if further tests were carried out, the Duncan test was used. The results showed that seaweed E. spinosum which was maintained for 30 days had a survival rate, final weight, final length and carrageenan yield ranging between 16.1% - 50.1%, 3.23 g - 10.13 g respectively, 10 cm - 17.6 cm and 6.75% - 10.86% with the best treatment, namely at a fertilizer dose of 2.5 g/l, while the best carrageenan yield treatment was found in the control treatment. This study concluded that E. spinosum seaweed given different doses had a real effect on survival and final weight. The highest survival rate and final weight were found in the 2.5 g/l dose treatment, namely 50.6% and 10.13 g, and the control treatment gave a higher yield of carrageenan than the other treatments, namely 10.86%

The Effect of Cherry Leaves Extract (Muntingia calabura) on Growth Performance of White Shrimp (Litopenaeus vannamei)

Cherry leaf is a natural ingredient that can be used as a feed additive because it contains flavonoids, tannins, saponins, triterpene and polyphenols which are antioxidants. This study aims to determine the effect of giving cherry leaf extract on the growth of vaname shrimp. A total of 20 vannamei shrimp in the PL-20 phase measuring ñ 0.1g / head are kept in a 40 liter container. The method used in this study was an experimental method using a completely randomized design (CRD) with 4 treatments and 3 replications, namely P1: feeding without cherry leaf extract (control), P2: feeding with the addition of 1% cherry leaf extract, P3: feeding with the addition of 2% cherry leaf extract and P4: feeding with the addition of 3% cherry leaf extract. The data obtained were analyzed by ANNOVA test with a confidence level of 95% and Duncan's continued test. The results of this study indicate that the addition of cherry leaf extract can affect the growth of vaname shrimp, but has no effect on the FCR value and survival rate. The addition of cherry leaf extract to a concentration of 3% can increase the growth of absolute weight and length and the specific growth rate of vaname shrimp which is better than the treatment without the addition of cherry leaf extract. Therefore cherry leaf extract has the potential to be used as a feed additive

The Effect of Biofloc with the Addition of Different Commercial Probiotics in Catfish (Clarias sp.)

Catfish was one of the most popular consumption fish in Indonesia. Increasing the production of catfish farming by means of super intensive cultivation has a negative impact on the quality of the aquaculture environment which in turn can have an impact on fish health. Biofloc technology was an alternative that can be done to solve the problem of aquaculture waste. In fact, it could provide more benefits because besides being able to reduce inorganic nitrogen waste  also provide additional feed for cultured fish so that it can increase growth and feed efficiency. This study aims to evaluate the growth performance of catfish (Clariassp.) In biofloc-based super intensive cultivation with the addition of different commercial probiotics. This research will be conducted for 5 months. The research was conducted in an aquarium in the form of an aquarium measuring 90 × 40 × 50 cm filled with 100 L. The treatment given was the addition of commercial probiotics in the culture medium with the biofloc system and fermented pellet feed with various commercial probiotics, namely commercial probiotic I, commercial probiotic II. , commercial probiotic III, positive control (biofloc culture media and without the addition of commercial probiotics), and negative control (without biofloc). Each treatment was repeated three times. Specific data growth, survival (SR), feed conversion ratio (FCR) and quality were statistical analysis with one-way analysis of variance. The results showed that the best growth performance of catfish using the biofloc culture system produced in this study was shown in PK3 treatment with a survival rate of 93.33%, a specific growth rate of 6.60, and a feed conversion ratio of 0.92.

UTILIZATION OF FERMENTED SPINACH LEAVES (Amiranthus spinosus L.) IN FEED FORMULATION TO STIMULATE MOLTING OF MANGROVE CRAB (Scylla serrata)

There are several techniques that have been developed to accelerate the molting of mud crabs, namely ablation, mutilation and supplementation. One form of supplementation is through the use of fermented spinach leaves on mud crabs. This study aimed to analyze the use of fermented spinach (A. spinosus L) leaves in feed to stimulate the molting of mud crab (S. serrata). This research was conducted for 60 days. The experimental method used in a Completely Randomized Design (CRD) consisting of five treatments and three replications, namely trash fish (P1), Spinach Leaf Fermentation (FDB) 20% (P2), 25% (P3), 30% (P4), and 40% (P5). The results showed that the combination test feed of spinach leaf fermentation had a significant effect on absolute weight and length, specific growth rate (SGR), and feed utilization efficiency, but had no significant effect on feed conversion and survival. Treatment of feed with additional fermented of spinach leaf 30% gave a faster initial molting, which is in the first 10 days with a total of 6 molting crabs and a molting percentage of 40%. Feeding with the addition of 30% and 40% spinach leaf fermented concentrations can provide the best growth and feed efficiency for mangrove crabs

Demplot Budi Daya Lobster dan Kerang Mutiara secara Terintegrasi dalam Rangka Penguatan Kemitraan Masyarakat Lombok Utara

Integrated Community Partnership Program (PKM) activities of lobster and pearl shells with the aim of increasing marine aquaculture production through the application and development of integrated aquaculture technologies. In addition, this activity is expected to increase knowledge and skills in productive economic business activities. In addition, this activity is expected to increase knowledge and skills in productive economic business activities. The method of implementing PKM is the method of demonstration plot, where the target community groups play an active role at all stages of activities. Implementation of activities offered to support the realization of PKM activities with steps that have been mutually agreed upon include strengthening and socializing PKM activities, training, strengthening institutional management, demonstration plots of integrated system cultivation and coaching and mentoring. The results of PKM activities provide a positive value for the target community, with integrated aquaculture production of floating net cages (KJA) in the sea no longer relying on one commodity, but one KJA unit can produce two commodities namely lobster (Panulirus homarus) and pearl shells (Pinctada maxima). Thus the potential to provide additional income for the community from these two commodities. In addition, through this PKM activity, it is expected that the knowledge and skills of the target communities will increase in order to strengthen community partnerships