MELISA, SRI NURUL (2023) PENGARUH LAMA PERENDAMAN HORMON TIROKSIN TERHADAP PERTUMBUHAN DAN TINGKAT KELANGSUNGAN HIDUP IKAN GURAMI (Osphronemus gouramy). S1 thesis, universitas malikussaleh.

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Abstract

ABSTRACT This study aims to determine the effect of the hormone thyroxine through immersion technique on the growth and survival of gouramy fry (Osprhonemus gouramy). This research was carried out on 14 March-April 2022 at the fish hatchery and rearing ponds in West Lancang Village, Dewantara District, North Aceh Regency. The desaign in his study used a experiment nonfactorial randomized desaign (CRD) with 5 treatment and 3 replications and treatment A (control), B (thyroxine soaking for 12 days), C (thyroxine soaking for 15 days), treathment D (thyroxine soaking for 18 days), treathment E (thyroxine soaking for 21 days). Parameters observed were specific growth rate, feed conversion ratio, daily feed consumption rate, survival, and water quality. The results showed that the administration of thyroxine hormone with different soaking times had a very significant effect on the specific growth rate, but had no effect on the survival rate of gourami (Oshphronemus gouramy). The best specific growth was in treatment E (thyroxine hormone immersion for 21 days). Length of 0.72% per day and weight of 2% per day. The best feed conversion value was found in treatment E of 1.74 and daily feed consumption rate of 2.56% per day. The survival rate reached 100%. The results of observations of water quality during the study were in the range suitable for the maintenance of gourami, namely temperature 26-28 0C, then pH ranged from 6.7-7.5, and DO ranged from 5.4-6. 8 mg/l. Keywords: Thyroxine, Soaking, Gourami, Growth, Survival.ABSTRAK Penelitian ini bertujuan untuk mengetahui pengaruh pemberian hormon tiroksin melalui teknik perendaman terhadap pertumbuhan dan kelangsungan hidup benih ikan gurami (Osprhonemus gouramy). Penelitian ini dilaksanakan pada tanggal 14 bulan Maret – April tahun 2022 yang bertempat di tambak pembenihan dan pembesaran ikan Gampong Lancang Barat, Kecamatan Dewantara, Kabupaten Aceh Utara. Rancangan pada penelitian ini menggunakan Rancangan Acak Lengkap (RAL) Non Faktorial dengan 5 perlakuan 3 ulangan dan dilanjutkan dengan uji Tukey jika terdapat perbedaan. Perlakuan yang diberikan yaitu perlakuan A (tanpa perendaman hormon), perlakuan B (perendaman hormon tiroksin selama 12 hari), perlakuan C (perendaman hormon tiroksin selama 15 hari, perlakuan D (perendaman hormon tiroksin selama 18 hari), dan perlakuan E (perendaman hormon tiroksin selama 21 hari). Parameter yang diamati yaitu laju pertumbuhan spesifik, rasio konversi pakan, laju konsumsi pakan harian, kelangsungan hidup, dan kualitas air. Hasil penelitian menunjukkan pemberian hormon tiroksin dengan lama waktu perendaman berbeda memberikan pengaruh sangat nyata terhadap laju pertumbuhan spesifik, namun tidak berpengaruh terhadap tingkat kelangsungan hidup ikan gurami (Oshphronemus gouramy). Pertumbuhan spesifik terbaik terdapat pada perlakuan E (perendaman hormon tiroksin selama 21 hari). Panjang sebesar 0,72 % per hari dan berat sebesar 2 % per hari. Nilai konversi pakan terbaik terdapat pada perlakuan E sebesar 1,74 dan laju konsumsi pakan harian sebesar 2,56 % per hari. Tingkat kelangsungan hidup mencapai 100 %.. Hasil pengamatan kualitas air selama penelitian berada pada kisaran yang cocok untuk pemeliharaan ikan gurami yaitu suhu 26-28 0C, kemudian pH berkisar 6,7-7,5, dan DO berkisar 5,4-6,8 mg/l. Kata Kunci: Hormon Tiroksin, Perendaman, Ikan Gurami, Pertumbuhan, Kelangsungan Hidup

Item Type:	Thesis (S1)
Subjects:	S Agriculture > SH Aquaculture. Fisheries. Angling
Divisions:	Fakultas Pertanian > 54243 - Jurusan Akuakultur
Depositing User:	Sri Nurul Melisa
Date Deposited:	26 Feb 2025 03:40
Last Modified:	26 Feb 2025 03:40
URI:	https://rama.unimal.ac.id/id/eprint/10380

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