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Journal : JURNAL PERTANIAN

KELANGSUNGAN HIDUP dan PERTUMBUHAN BENIH IKAN LELE DUMBO (Clarias sp) PADA SISTEM RESIRKULASI DENGAN KEPADATAN BERBEDA Muarif, Muarif
JURNAL PERTANIAN Vol 2, No 1 (2011)
Publisher : Universitas Djuanda Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (685.967 KB) | DOI: 10.30997/jp.v2i1.557

Abstract

This study was aimed at assessing the effect of stocking density on the survival and growth of Dumbo fish fry raised in a recirculated system. The study was conducted at the the Laboratory of Aquaculture, Department of Aquaculture and Fishery Business and Chemistry Laboratory of the Faculty of Agribusiness and Food Technology, Djuanda University from May to September 2010.A completely randomized design with four treatments and three replications was used. Treatments consisted of stocking density rates of 20, 30, 40, and 50 fish/l. Tanks sized 50x30x30 cm3 were filled in with 25 liter water and fish fry sized 2.24-2.30 cm in the corresponding stocking density rates. Feeding was done ad libitum twice a day at 09.00 and 16.00. Parameters measured included survivability rate, body length growth, daily weight gain, feed efficiency, protein retention, and water quality.Results showed that stocking density gave significant effects (P<0.05) on survivability rate, body length growth, and daily weight gain but not (P>0.05) on feed efficiency and protein retention. The highest survivability rate, body length growth, and daily weight gain of 66.00%; 2.13 cm; and 5.54%, respectively, were obtained in stocking density of 20 fish/l. The quality of water used as a medium of catfish fry raising in each treatment during the experimental period was found to be within good range for the survival and growth of the fry. It was concluded that improving stocking density from 20 to 50 fish/l did not improve Dumbo catfish fry survival and growth rates. Meanwhile, the use of recirculated system was found to maintain medium water quality.
PERTUMBUHAN DAN KELANGSUNGAN HIDUP BENIH IKAN GURAMI (Osphronemus gouramy) PADA SISTEM RESIRKULASI DENGAN PADAT TEBAR 5,7 DAN 9 EKOR/LITER Sulistyo, Joko; Muarif, Muarif; Mumpuni, Fia Sri
JURNAL PERTANIAN Vol 7, No 2 (2016)
Publisher : Universitas Djuanda Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (271.73 KB) | DOI: 10.30997/jp.v7i2.21

Abstract

Ikan gurami (Osphronemus gouramy) merupakan komoditas unggulan ikan air tawar, tetapihasil produksinya masih belum dapat memenuhi permintaan pasar. Oleh karena itu perluupaya dan teknologi untuk meningkatkan ketersediaan benih dan produksi benih ikan guramedengan pembenihan secara intensif melalui peningkatan padat penebaran dengan sistemresirkulasi. Penelitian ini bertujuan untuk mengetahui pertumbuhan dan kelangsungan hidupbenih ikan gurami terbaik dengan padat penebaran 5, 7 dan 9 ekor/liter, dengan ukuran benih1 cm dengan sistem resirkulasi. Hasil penelitian ini menunjukkan perlakuan padat penebaranbenih ikan gurami yang berbeda dalam pemeliharaan sistem resirkulasi memberikan pengaruhnyata terhadap derajat kelangsungan hidup, laju pertumbuhan bobot harian, dan panjangmutlak. Nilai tertinggi derajat kelangsungan hidup diperoleh pada padat tebar 5 ekor/literdengan nilai 83,85%, sedangkan nilai laju pertumbuhan bobot harian dan pertumbuhanpanjang mutlak tertinggi diperoleh pada perlakuan padat tebar 7 ekor/liter.Kata kunci: padat penebaran, ikan gurame, tingkat pertumbuhan, tingkat kelangsungan hidup
PERTUMBUHAN DAN KELANGSUNGAN HIDUP IKAN HIAS PLATYDORAS (Platydoras costatus) DALAM TEKNOLOGI BIOFLOK Teduh, Ahmad; Muarif, Muarif; Rosmawati, Rosmawati
JURNAL PERTANIAN Vol 8, No 2 (2017): OCTOBER
Publisher : Universitas Djuanda Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (546.417 KB) | DOI: 10.30997/jp.v8i2.1111

Abstract

Tujuan penelitian ini untuk mengetahui pertumbuhan dan kelangsungan hidup ikan hias Platydoras (Platidoras costatus) yang dipelihara dengan menggunakan teknologi bioflok. Penelitian ini menggunakan Rancangan Acak Lengkap dengan 2 perlakuan dan 5 ulangan.  Perlakuan dalam penelitian ini adalah: Perlakuan A (Tanpa Bioflok), B (Dengan Bioflok). Ikan uji yang digunakan adalah ikan hias Platydoras yang memiliki panjang 1,9–2,1 cm. Ikan dipelihara selama 40 hari dan diberi pakan 2 kali sehari. Parameter yang diamati meliputi laju pertumbuhan harian, kelangsungan hidup, pengukuran kualitas air dan kepadatan bakteri. Hasil penelitian menunjukan bahwa penambahan bioflok memberikan pengaruh yang berbeda nyata (P<0,05) terhadap laju pertumbuhan harian, dan tingkat kelangsungan hidup (SR). Kepadatan bakteri di awal penelitian (9.6x104 CFU/ml), pada akhir penelitian memiliki nilai rata-rata pada perlakuan tanpa bioflok berkisar 7.84x105 CFU/ml sedangkan nilai rata-rata pada perlakuan bioflok berkisar 4,3 x106 CFU/ml, Hasil indentifikasi pada awal penelitian terdapat 4 jenis bakteri yaitu Streptobacillus sp, Enterobacter sp, Kurthia sp, Aeromonas sp. pada akhir penelitian terdapat 2 jenis bakteri pada perlakuan tanpa bioflok (Streptobacillus sp dan Aeromonas sp) dan 2 jenis bakteri pada perlakuan bioflok (Streptobacillus sp dan Kurthia sp.). Kata Kunci: bioflok, pertumbuhan, platydoras, jenis bakteri.GROWTH AND GOING FISH LIFE PLATYDORAS (Platydoras costatus) FISH IN BIOFLOK TECHNOLOGYABSTRACT The purpose of this research is to know the growth and survival of Platydoras ornamental fish (Platidoras costatus) which is maintained by using biofloc technology. This study used Completely Randomized Design with 2 treatments and 5 replications. The treatments in this study were: Treatment A (Without Biofluok), B (With Bioflok). The test fish used are Platydoras ornamental fish that has a length of 1.9-2.1 cm. Fish kept for 40 days and fed 2 times a day. The parameters observed included daily growth rate, survival, water quality measurement and bacterial density. The results showed that the addition of bioflock gave significant different effect (P <0,05) to daily growth rate, and survival rate (SR). The density of the bacteria at the start of the study (9.6x104 CFU / ml), at the end of the study had an average value of treatment without biofloc ranging from 7.84x105 CFU / ml while the mean value of biofloc treatment ranged from 4.3 x106 CFU / ml, at the beginning of the study there were 4 types of bacteria: Streptobacillus sp, Enterobacter sp, Kurthia sp, Aeromonas sp. at the end of the study there were 2 types of bacteria on treatment without biofloc (Streptobacillus sp and Aeromonas sp) and 2 types of bacteria on biofloc treatment (Streptobacillus sp and Kurthia sp.).