Febriawan, Aditya Chandra (2021) PENGARUH PENGGUNAAN MICROBUBBLE DAN AERASI DIFUSI TERHADAP KUALITAS AIR, RASIO KONVERSI PAKAN, DAN EFISIENSI PAKAN PADA PENDEDERAN IKAN LELE (Clarias gariepinus) DENGAN SISTEM BIOFLOC. Sarjana thesis, Universitas Brawijaya.
Abstract
"Pengaruh sistem aerasi pada pendederan ikan lele dumbo Clarias gariepinus dengan sistem biofloc terhadap kualitas air, rasio konversi pakan, efisiensi pakan, dan tingkat kelangsungan hidup diselidiki dalam percobaan 16 hari. Sebanyak 2400 ekor ikan (3,83 cm ± 0,67 gr) diberi pakan tiga kali sehari (06.00, 12.00, dan 18.00) dengan pakan komersial 39% protein hingga kenyang yang dibudidayakan dalam sistem biofloc dengan sistem aerasi yang berbeda, aerasi difusi (K) dan kombinasi microbubble dan aerasi difusi (M) dengan dua ulangan pada kepadatan 1 ekor L-1. Pemeliharaan biofloc dilakukan dengan menambahkan probiotik komersial 10 mL m-3 Bacillus sp. 5x109 CFU setiap perlakuan setelah makan pagi. Hasil penelitian menunjukkan bahwa parameter kualitas air seperti suhu, oksigen terlarut, dan TDS pada M lebih tinggi dari K (p<0,05), sedangkan pH pada M lebih rendah dari K (p<0,05), kemudian pada TAN, nitrit dan kekeruhan pada kedua perlakuan tidak berbeda nyata (p>0,05). Temperatur pada M lebih tinggi 6,9%, oksigen terlarut lebih tinggi 11,5%, TDS lebih tinggi 14,37%, dan pH lebih rendah 0,95% dari K. Parameter produktivitas pada M memiliki nilai FCR lebih rendah 54,49%, efisiensi pakan lebih tinggi 79,81%, dan tingkat kelangsungan hidup 19,92% lebih tinggi dari K."
English Abstract
The increase in catfish production every year must be balanced with the adequacy of catfish seed with great quality and this can be overcome by intensification of catfish seed productions. This method has deficiency, like increasing the amount of feed, high waste production, sedimentation, hypoxia which leads fish to death, high ammonia concentration due to an increase in the amount of feed that causes catfish seed to stress, trigger physiological change, and mass death. This problem can be overcome with biofloc technology. This technology can run optimally if it equppied with an efficient and strong aeration system to supply oxygen as well as the movement and circulation of water. Theses three factors can be overcome by using microbubble aeration technology combined with a conventional aeration system. The study was conducted from November to December 2020 in the catfish nursery unit CV. Fishindo Aquatic, Entrepreneurial Innovation and Innovators Agency, Universitas Brawijaya. The study was conducted by experimental method using a one factor Completely Randomized Design (CRD) consisting of two treatments and two replications, namely the diffusion aeration system (K) treatment and the microbubble+diffusion aeration system (M) treatment. The data collected is primary data which consists of two parameters, namely the main and supporting parameters. The main parameters are temperature, DO, pH, TDS, TAN, nitrite, and turbidity. Supporting parameters are FCR, feed efficiency (EP), and survival rate (SR). Parameters of temperature, DO, pH, and TDS were measured every day at 04.00 and 14.00, while TAN, nitrite, and turbidity were measured every 5 days at 14.00. Supporting parameters were calculated at the end of the study. The results obtained for the average temperature in treatment M was higher than treatment K (p<0,05), with values 25,88±0,76oC and 24,21±1,12oC respectively. The average dissolved oxygen in treatment M was higher than treatment K (p<0,05), with values of 8,54±1,08mg L-1 and 7,66±0,91mg L-1, respectively. The average pH in treatment K was higher than treatment M (p<0,05), with values of 8,40±0,21 and 8,32±0,17, respectively. The average TDS in treatment M was higher than treatment K (p<0,05), with values 1380,89±67,38 and 1207,36±72,45, respectively. The average TAN in treatments K and M was not significantly different (p>0,05), with values of 1,44±1,79mg L-1 and 1,69±2,20mg L- 1. The average nitrite in the K and M treatments was not significantly different (p>0,05), with values of 0,37±0,30mg L-1 and 0,23±0,14mg L-1. The average turbidity in the K and M treatments was not significantly different (p>0,05), with values of 8,5±5,98NTU and 13,09±4,10NTU. The average FCR in treatment K was 1,56, while in treatment M was 0,71. The average EP in treatment K was 65,25%, while in treatment M it was 145,06%. The average SR in treatment K was 55,58%,
Other obstract
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| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | 052108 |
| Subjects: | 600 Technology (Applied sciences) > 639 Hunting, fishing & conservation > 639.3 Culture of cold-blooded vertebrates |
| Divisions: | Fakultas Perikanan dan Ilmu Kelautan > Budidaya Perairan |
| Depositing User: | agung |
| Date Deposited: | 22 Oct 2021 07:13 |
| Last Modified: | 10 Oct 2024 02:08 |
| URI: | http://repository.ub.ac.id/id/eprint/185070 |
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