Ariastiti, Nisa Wahyu and Dr. Yunita Maimunah, S.Pi., M.Sc. and Febriyani Eka Supriatin, S.Si., M.Si. (2022) Pengaruh Waktu Siponisasi dan Jumlah Titik Aerasi Terhadap Kualitas Air pada Pemeliharaan Ikan Nila (Oreochromis niloticus). Sarjana thesis, Universitas Brawijaya.
Abstract
Potensi perikanan di Indonesia secara nasional pada tahun 2018 mencapai 15,59 juta hektar. Salah satu contoh jenis ikan air tawar yang memiliki adaptasi yang baik adalah ikan nila. Permintaan ikan nila sangat tinggi di pasar ekspor dan terus mengalami peningkatan setiap tahunnya. Budidaya ikan nila secara intensif merupakan budidaya ikan dengan peningkatan jumlah kepadatan ikan dan pakan. Adanya hal tersebut menyebabkan peningkatan senyawa amonia dan kekeruhan air. Peningkatan senyawa organik dalam air akan mengakibatkan penurunan kadar oksigen terlarut, sehingga akan menghambat pertumbuhan ikan. Sehingga perlu dilakukan siphon agar bisa mengurangi kadar bahan organik dalam perairan. Selain itu juga diperlukan penambahan oksigen terlarut melalui aerasi agar kebutuhan oksigen terlarut tetap tercukupi. Penelitian dilakukan di Laboratorium Budidaya ikan dan Hidrobiologi Fakultas Perikanan dan Ilmu Kelautan pada bulan Mei-Juni 2022. Rancangan percobaan menggunakan Rancangan Acak Lengkap Faktorial (RALF) dengan rincian perlakuan (A1.1) perlakuan kontrol dengan satu titik aerasi dan siphon dua hari sekali, (A1.2) perlakuan dengan satu titik aerasi dan siphon setiap hari, ( B2.1) perlakuan dengan dua titik aerasi dan siphon dua hari sekali, dan (B2.2) perlakuan dengan dua titik aerasi dan siphon setiap hari. Ikan yang digunakan berasal dari Balai Pembenihan Ikan Desa Sumbersekar, Kecamatan Dau, Kabupaten Malang. Kepadatan ikan yang ditebar pada akuarium adalah 1 ekor/L. Jumlah ikan dalam akuarium adalah 15 ekor ikan nila ukuran 5-6 cm. Hasil yang diperoleh selama penelitian adalah nilai suhu pada pagi dan sore hari memiliki rata-rata 22,8-23,9°C dan 24,1-26,1°C. Nilai pH pada pagi dan sore hari memiliki rata-rata 7,61-7,72 dan 7,68-7,79. Nilai DO pada pagi dan sore hari memiliki rata-rata 6,57-7,95 mg/L dan 6,26-7,75 mg/L. Nilai BOD pada perlakuan B2.2 (5,37 mg/L), A1.2 (5,18 mg/L), B2.1 (4,53 mg/L), dan A1.1 (3,02 mg/L). Nilai Amonia pada perlakuan A1.2 (0,2643 mg/L), B2.2 (0,2049 mg/L), perlakuan B2.1 (0,1980 mg/L), dan perlakuan A1.1 (0,0956 mg/L). Nilai pertumbuhan berat mutlak perlakuan A1.1 5,21 gram, perlakuan A1.2 5,93 gram, perlakuan B2.1 4,57 gram, dan perlakuan B2.2 5,42 gram. Nilai pertumbuhan panjang mutlak perlakuan A1.1 2,81 cm, perlakuan A1.2 3,13 cm, perlakuan B2.1 2,80 cm, dan perlakuan B2.2 3,01 cm. Nilai growth rate perlakuan A1.1 0,1736 gram, perlakuan B 0,1976 gram, perlakuan A2.1 0,1523 gram, dan perlakuan B2.2 0,1806 gram. Nilai specific growth rate A1.1 0,0137%/hari, perlakuan A1.2 0,0150%/hari, perlakuan B2.1 0,0138%/hari, dan perlakuan B2.2 0,0145%/hari. Nilai FCR perlakuan A1.1 0,58, perlakuan A1.2 0,66, perlakuan B2.1 1,12, dan perlakuan B2.2 0,60. Nilai SR perlakuan A1.1 66,67%, perlakuan A1.2 87,67%, perlakuan B2.1 73,33%, dan perlakuan B2.2 84,44%. Kesimpulan yang diperoleh adalah perlakuan aerasi penggunaan berpengaruh terhadap nilai oksigen terlarut/DO pada pagi dan sore hari. Perlakuan penyiponan berpengaruh terhadap nilai pH, DO, suhu, BOD dan Amonia. Perlakuan penggunaan aerasi dan penyiponan berbeda berpengaruh terhadap nilai BOD dan amonia dalam pemeliharaan ikan nila. Perlakuan dengan jumlah satu titik aerasi dan penyiponan setiap hari (Perlakuan B2.1) memiliki nilai paling baik untuk menunjang pertumbuhan ikan nila. Saran untuk penelitian selanjutnya adalah perlu pengujian awal terkait sumber air yang akan digunakan serta menguji kadar oksigen terlarut dari jumlah aerasi yang akan digunakan, serta perlu digunakan kain saring untuk menyaring partikel-partikel dalam air.
English Abstract
National fisheries potential in Indonesia in 2018 reached 15.59 million hectares. One example of freshwater fish that has good adaptation is tilapia. The demand for tilapia is very high in the export market and continues to increase every year. Intensive tilapia cultivation is fish farming with an increase in the density of fish and feed. The existence of this causes an increase in ammonia compounds and water turbidity. An increase in organic compounds in water will result in a decrease in dissolved oxygen levels, which will inhibit fish growth. So it is necessary to do a siphon in order to reduce the levels of organic matter in the waters. In addition, it is also necessary to add dissolved oxygen through aeration so that dissolved oxygen needs are still fulfilled. The research was conducted at the Laboratory of Fish Cultivation and Hydrobiology, Faculty of Fisheries and Marine Sciences in May-June 2022. The experimental design used was Completely Randomized Factorial Design (RALF) with treatment details (A1.1) control treatment with one aeration point and a siphon every two days, (b) ) treatment with one point of aeration and siphon every day, (c) treatment with two points of aeration and siphon every other day, and (d) treatment with two points of aeration and siphon every day. The fish used came from the Fish Hatchery Center of Sumbersekar Village, Dau District, Malang Regency. The density of fish stocked in the aquarium is 1 fish/L. The number of fish in the aquarium is 15 tilapia size 5-6 cm. The results obtained during the study were the temperature values in the morning and evening had an average of 22.8-23.9°C and 24.1-26.1°C. The pH values in the morning and evening have an average of 7.61-7.72 and 7.68-7.79. DO values in the morning and evening have an average of 6.57-7.95 mg/L and 6.26-7.75 mg/L. BOD values in treatment D (5.37 mg/L), A1.2 (5.18 mg/L), A2.1 (4.53 mg/L), and A1.1 (3.02 mg/L). Ammonia values in treatment A1.2 (0.2643 mg/L), D (0.2049 mg/L), treatment C (0.1980 mg/L), and treatment A1.1 (0.0956 mg/L). The absolute weight growth value of treatment A was 5.21 grams, treatment A1.2 was 5.93 grams, treatment A2.1 was 4.57 grams, and treatment D was 5.42 grams. The absolute length growth value of treatment A1.1 was 2.81 cm, treatment A1.2 was 3.13 cm, treatment A2.1 was 2.80 cm, and treatment D was 3.01 cm. The growth rate value of treatment A was 0.1736 grams, treatment A1.2 was 0.1976 grams, treatment A2.1 was 0.1523 grams, and treatment A2.2 was 0.1806 grams. The value of specific growth rate A1.1 is 0.0137%/day, treatment B is 0.0150%/day, treatment A2.1 is 0.0138%/day, and treatment A2.2 is 0.0145%/day. The FCR value of treatment A1.1 was 0.58, treatment A1.2 was 0.66, treatment A2.1 was 1.12, and treatment A2.2 was 0.60. The SR value of treatment A1.1 was 66.67%, treatment A1.2 was 87.67%, treatment A2.1 was 73.33%, and treatment A2.2 was 84.44%. The conclusion obtained is the use of treatment affects the value of dissolved oxygen/DO in the morning and evening. Siphoning treatment affects the value of pH, DO, temperature, BOD and Ammonia. Different treatments using aeration and siphoning affected the BOD and ammonia values in tilapia rearing. The treatment with one point of aeration and siphoning every day (Treatment A1.2) had the best value to support the growth of tilapia. Suggestions for further research are the need for initial testing related to the water source that will be used and testing the dissolved oxygen content of the amount of aeration to be used, and it is necessary to use a filter cloth to filter out particles in the water.
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | 0522080605 |
| Divisions: | Fakultas Perikanan dan Ilmu Kelautan > Budidaya Perairan |
| Depositing User: | soegeng Moelyono |
| Date Deposited: | 15 Jan 2024 02:39 |
| Last Modified: | 15 Jan 2024 03:31 |
| URI: | http://repository.ub.ac.id/id/eprint/209734 |
![[thumbnail of DALAM MASA EMBARGO]](http://repository.ub.ac.id/style/images/fileicons/text.png) |
Text (DALAM MASA EMBARGO)
Nisa Wahyu Ariastiti.pdf Restricted to Registered users only until 31 December 2024. Download (3MB) |
Actions (login required)
 |
View Item |