PENGARUH PEMBERIAN MULTIVITAMIN PADA PAKAN TERHADAP PERTUMBUHAN DAN KELANGSUNGAN HIDUP IKAN PATIN (Pangasius pangasius)

As one of fish commodity, Catfish (Pangasius pangasius) has a very important economic value for the community. The time needed for catfish cultivation tends to be long and the price of feed is high so that it triggers the less optimal production of catfish. One way to maximize good production and with minimized time is by adding multivitamin probiotics to the feed. This research aims to analyze the optimal dose of probiotics to the growth and survival rate of catfish . Method used is Complete Randomized Design Design (CRDD) using 4 treatments of probiotic doses and 3 replicates. The treatments are A Control (0.00 ml/kg), B (10 ml/kg), C (15 ml/kg), and D (20 ml/kg). Absolute weight, absolute length, and survival of catfish are the main variables observed. The data were analyzed by using the analysis of variance and continued with the LSD test (the Least Significant Difference), Ü = 0.05. The optimal dose of probiotics based on the absolute length and absolute weight of catfish is 10 ml/kg and it produces an absolute weight of 5.27 gram and absolute length of 5.76 cm. The optimal daily specific growth rate is at the probiotics dose of 10 ml/kg which is 2.302.55%/day. The highest survival rate for catfish is 100% at probiotic doses of 0.000 ml/kg, 10 ml/kg and 15 ml/kg. The range of water quality is in the temperature of 27.5 – 28,90C, pH 6.79 - 7.88, DO 6.4 - 7.9 ppm, and ammonia 0 ppm.

PENGGUNAAN SISTEM AKUAPONIK DENGAN JENIS TANAMAN YANG BERBEDA TERHADAP PERTUMBUHAN DAN KELANGSUNGAN HIDUP IKAN MAS (Cyprinus Carpio)

Common carp (Cyprinus carpio) is one type of freshwater fish that develops very rapidly as a commercial fish. The purpose of this study was to determine the best plant species in aquaponic systems in increasing optimal growth of common carp (Cyprinus carpio). This study used a completely randomized design (RAL) with 4 treatments and 3 replications. Analysis of variance (ANOVA) was used to see significant differences in treatment. Composition of treatment K (without plants), A (kale), B (lettuce), C (pakcoy). The main observation variables include absolute weight growth, absolute length, daily growth rate, survival rate and feed conversion ratio. The results of variance analysis (ANOVA) showed very significant differences in absolute length and survival variables. Absolute weight, daily growth rate and FCR in the study did not show any real differences. The highest absolute weight growth, daily growth rate, and feed conversion ratio are perlakaun K (without plants) (1,19)g, (1,59)cm and (3,48)g. The highest absolute length is treatment C (pakcoy) which is (0.97)cm. A good survival rate is B (lettuce) treatment, that is (60.00%).

UJI PENGARUH TEPUNG AZOLLA (Anabaena azollae) DENGAN TAKARAN YANG BERBEDA PADA PAKAN TERHADAP PERTUMBUHAN DAN KELANGSUNGAN HIDUP IKAN NILA SRIKANDI (Oreochromis niloticus)

This study was conducted to determine the effect of the provision of azolla flour into pellet feed to improve the performance of tilapia. This study used a complete randomized block (CRD) consisting of 4 treatments and 3 replications with doses, namely: (K - 100% pellet feed), (A - 75% + 25% Azolla pellet), (B – pellet 50% + 50 % Azolla), (C - pellet 25% + 75% Azolla) main parameters include weight growth, survival and feed conversion ratio (FCR), feed utilization efficiency (EPP). While supporting parameters include temperature, pH, DO. Then the data obtained was processed dst and analyzed using excel, analysis of variance (ANOVA) with a confidence of 95% and continued using BNT test. If there was a significant effect on the treatment. The ANOVA test results showed that the administration of azolla flour on feed did not have a significant effect on absolute growth and daily growth rate, survival FCR, and efficiency of feed utilization (EPP) of tilapia (p<0.05), thus the results of the study could be concluded the addition of azolla flour to tilapia feed in this study did not have a significant effect, so there was no need to do further tests on BNT0.05 (Smallest Significant Difference). The results in this study on absolute growth control treatment amounted to 0.83 gram, specific growth rate of 0.69%, FCR of 1.72, survival (SR) of 53% while feed utilization efficiency (EPP) of 43.82% no one has a real influence.

EVALUASI PENGARUH HORMON GONADOTROPIN PADA TINGKAT KEMATANGAN GONAD IKAN BOTIA (CHROMOBOTIA MACRACANTHUS)

Botia fish (Chrombotia macracanthus), known as the clown loach, is a species of freshwater ornamental fish from the Cobitidae family whose distribution is limited to the islands of Borneo and Sumatra. The limitations of Botia fish distribution make it necessary to increase the maturity of the gonadal Botia fish to increase the breeding of these fish. The results of the evaluation of the effect of gonadotropin hormone on fish Botia carried out for four days and on the first female parent produced as many as 15,898 eggs with FR (Fertilization Rate) of 57.5% and HR (Hatching Rate) of 60.5%. The second Botia parent produces 10,872 eggs with FR (Fertilization Rate) of 96.5% and HR (Hatching Rate) of 13.7%. HCG serves to homogenize the size of the egg and accelerate gonadal maturity. Ovaprim serves to accelerate the ovulation process and stimulate spawning.

KUALITAS AIR DAN STATUS KESUBURAN PERAIRAN DI TELAGA NGIPIK, WADUK BUNDER DAN TELAGA DOWO DI KABUPATEN GRESIK

Ngipik, bunder and dowo reservoirs or dowo are one of the repositories in Gresik regency located in the center of the city that has been utilized by the community for industrial, agricultural and domestic purposes, while also being used for tourism purposes. The study aims to determine water quality and evaluate the status of water fertility in three reservoirs/lakes (Ngipik, Bunder and Dowo) in Gresik district. The research activities were carried out from 16 to 20 July 2019. The data collection method used a survey method with stratified random sampling at three different stations. The results of water quality measurements show that overall that the water quality in the three reservoirs/ponds is still good for aquaculture activities except Ngipik Lake based on phosphate values of 0.75 - 3 ppm can be categorize including the status of dense eutrophic waters so specific management plans are needed to optimize its utilization. Whereas in the Bunder reservoir and Dowo ponds, the phosphate content has not detected, so its water status is oligotrophic.

PENGARUH KOMBINASI PAKAN BUATAN DENGAN TEPUNG DAUN MANGROVE API – API (Avicennia marina) TERHADAP PERTUMBUHAN IKAN NILA SRIKANDI (Oreochromis aureus x niloticus).

Avicennia marina have been known for a long time by the community because of the many benefits they have and are commonly used as medicines, fuelwood or construction of house buildings, and also animal feed. Production of tilapia srikandi is currently being developed to increase fisheries production cultivation, tilapia srikandi (Oreochromis aureus x niloticus) has many advantages including fast to growth, disease resistance and tolerance to the environment. The purpose of this study was to determine the effect of artificial feed with the the addition of formulation from different Avicennia marina leaves to the growth of srikandi tilapia (Oreochromis aureus x niloticus). This study was conducted using a completely randomized design (CRD), with 3 treatments 3 replications and using 10 fish in each replication treatment. Treatment of A: 100% artificial feed, Treatment B: 25% artificial feed + 75% flour of Avicennia marina leaves, Treatment C: 50% artificial feed + 50% flour of Avicennia marina leaves, Treatment D: 75% artificial feed + 25% flour of Avicennia marina leaves. The results of this study indicate that the treatment of the effect of the combination of artificial feed with flour of Avicennia marina leaves on the growth of srikandi tilapia (Oreochromis aureus x niloticus). The variable of daily growth rate and survival variable get the best results in treatment C (50% artificial feed + 50% flour of Avicennia marina leaves), in the long variable absolute get the best results on treatment D (75% artificial feed + 25% flour of Avicennia marina leaves ), variable of absolute weight and FCR variable get the best results in treatment A (100% artificial feed).

UJI EFEKTIFITAS PENAMBAHAN MINYAK IKAN DENGAN DOSIS YANG BERDEDA PADA PAKAN TERHADAP PERTUMBUHAN DAN FCR UDANG VANNAMEI (Litopenaeus vannamei)

Penelitian ini bertujuan untuk mendapatkan dosis terbaik penambahan minyak ikan pada pakan udang vannamei terhadap pertumbuhan dan FCR udang vannamei. Penelitian ini menggunakan Rancangan Acak kelompok (RAK) dengan 4 perlakuan, 3 kali ulangan dan 1 kontrol, dari setiap ulangan diambil secara acak 4 sampel. Setiap tempat budidaya ditebar benih udang vannamei ukuran 5 - 7 cm dengan kepadatan 20 ekor/m3. Aplikasi minyak ikan pada setiap perlakuan pada pakan udang dengan konsentrasi sesuai perlakuan yaitu : M0 = Kontrol (0 ml/kg), M1 = 5 ml/kg. M2 = 10 ml/kg dan M3 = 15 ml/kg. Dari hasil penelitian yang telah dilakukan, maka dapat disimpulkan bahwa pemberian dosis minyak ikan pada pakan udang vannamei menunjukan perbedaan nyata pada variabel bobot mutlak dan FCR. Pada perlakuan M1 (5 ml/kg pakan) memberikan bobot mutlak dan FCR terbaik. Sedangkan variabel panjang mutlak tidak memperlihatkan perbedaan nyata pada semua perlakuan

PENGARUH JENIS SUBSTRAT YANG BERBEDA TERHADAP SINTASAN DAN PERTUMBUHAN LOBSTER AIR TAWAR (Cherax quadricarinatus

The existence of freshwater crayfish in Indonesia is not well known among the community, even some people think that this type of lobster can only be obtained from catches. Freshwater lobster cultivators are always faced with the classic problem of low survival, especially during seed stages. The role of the water bottom substrate for freshwater crayfish is to support stabilizing water quality (temperature, pH, dissolved oxygen and ammonia levels). If the substrate condition of the habitat is not suitable, it can inhibit growth and even death. The purpose of this study is; to find out the effect of different basic substrates can increase the survival and growth of freshwater lobsters. The research method used a Completely Randomized Design (CRD) with 4 treatments 3 replications and 1 control. Each container is stocked with 2-inch lobster seeds with a density of 10 heads / container. The substrate application for each treatment is: A = Control, B = Land, C = Sand Malang, and D = Gravel. Based on the results of the research that has been done, it can be concluded that the administration of different substrates only shows significant differences in the survival variable, with the highest number of 96,67% in treatment C (Malang sand) and the lowest with 66,00% in treatment A (Control). While the variables of absolute weight, absolute length, and daily growth rate did not show significant differences in all treatments.

KINERJA PERTUMBUHAN DAN FCR IKAN PATIN (Pangasius sp) DENGAN LAMA PEMUASAAN YANG BERBEDA

Ikan patin termasuk komoditi yang memiliki prospek cerah untuk dibudidayakan. Tingginya biaya produksi akibat mahalnya harga pakan dan kebutuhan pakan yang tinggi mendorong perkembangan metode pemberian pakan yang efisien dan dan efektif. Salah satunya adalah dengan cara pemuasaan pakan. Penelitian ini bertujuan untuk menguji efek dari pemuasaan dan pertumbuhan, kelangsungan hidup dan rasio konversi pakan pada ikan patin. Penelitian menggunakan rancangan acak lengkap (RAL) dengan 4 perlakuan Perlakuan A (pemuasaan 8 jam), Perlakuan B (pemuasaan 12 jam), Perlakuan C (pemuasaan 24 jam), Perlakuan D (pemuasaan 48 jam) dan 3 kali ulangan. Parameter yang dianalisis adalah pertumbuhan panjang mutlak, pertumbuhan bobot mutlak, laju pertumbuhan harian, kelangsungan hidup dan FCR. Setiap tempat budidaya ditebar benih ikan patin ukuran 9-10 cm dengan kepadatan 10 ekor/media. Berdasarkan hasil penelitian yang telah dilakukan, maka dapat disimpulkan bahwa pemuasaan pada ikan patin menunjukkan perbedaan nyata pada variabel bobot mutlak, panjang mutlak, laju pertumbuhan harian, dan FCR. Perlakuan B (pemuasaan 12 jam) memberikan bobot mutlak, panjang mutlak, dan FCR terbaik. Laju pertumbuhan harian terbaik pada perlakuan A (pemuasaan 8 jam). Sedangkan variabel kelangsungan hidup tidak memperlihatkan perbedaan nyata pada semua perlakuan.

PENGARUH FREKUENSI PEMBERIAN PAKAN YANG BERBEDA TERHADAP PERTUMBUHAN IKAN BANDENG (Chanos chanos)

Ikan bandeng merupakan yang digemari oleh masyarakat Indonesia, karena mempunyai rasa yang enak dan harga yang murah. Penelitian ini dilaksanakan di Tambak air payau di Desa Banyu Urip Kecamatan Ujung Pangkah Kabupaten Gresik. Tujuan penelitian ini adalah untuk mengetahui pengaruh frekuensi pemberian pakan yang berbeda terhadap pertumbuhan ikan bandeng. Untuk mengetahui pengaruh frekuensi pemberian pakan yang berbeda terhadap kelangsunggan hidup ikan bandeng. Metode penelitian yang digunakan rancangan percobaan yang akan digunakan dalam penelitian ini adalah Rancangan Acak Lengkap (RAL) dengan 4 taraf perlakuan dan 3 kali pengulangan. Perlakuan Perlakuan A: Frekuensi pemberian pakan satu kali sehari yaitu pada pukul 08.00 WIB.Perlakuan B: Frekuensi pemberian pakan dua kali sehari yaitu pada pukul 08.00 WIB dan 20.00 WIB.Perlakuan C: Frekuensi pemberian pakan tiga kali sehari yaitu pada pukul 08.00 WIB, 12.00 WIB, 20.00 WIB.Perlakuan D: Frekuensi pemberian pakan empat kali sehari yaitu pada pukul 08.00 WIB, 12.00 WIB, 16.00 WIB dan 20.00 WIB. Dengan analisis statistic dengan menggunakan ANOVA jika berpengaruh dilakukan uji BNT. Hasil penelitian menunjukkan bahwa kelangsungan hidup ikan bandeng 100%, Rasio Konversi Pakan Ikan Bandeng yang bagus yaitu pada perlakuan A dengan pemberian 1 kali