Articles

Found 9 Documents
Search

MODIFIKASI MEDIA SPIRULINA PLATENSIS SEBAGAI UPAYA PEMANFAATAN AIR LIMBAH BUDIDAYA IKAN LELE Widyantoro, Hendro; Wijayanti, Marini; Dwinanti, Sefti Heza
Jurnal Akuakultur Rawa Indonesia Vol 6, No 2 (2018): JURNAL AKUAKULTUR RAWA INDONESIA
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (187.565 KB) | DOI: 10.36706/jari.v6i2.7159

Abstract

ABSTRACTThe purpose of this study was to determine the best fertilizer compotition that was made from technical fertilizer and waste water of cat fish farming. This experimental was conducted at Aquaculture Laboratory, Faculty of Agriculture, Sriwijaya University. It used complete randomized design (CRD) method which had five treatments and three replications, the waste water from catfish pond (P0), waste water from catfish pond + 25% technical fertilizer (P1), waste water from catfish pond + 50% technical fertilizers (P2), the waste water from catfish pond + 75% technical fertilizers (P3), the waste water from catfish pond + 100% technical fertilizers (P4). The results showed that the best maximum density of S. platensis was P3 about 3.98 g l-1, and growth rate was equal to 2.80% day-1. The most significant parameter of water quality was ammonia which decreased until 82.78%. Besides, it was more beneficial than others based on Return Cost Ratio (R/C ratio) and Benefit Cost Ratio (B/C ratio) which were 3.66 and 2.66 respectively. Keywords: Spirulina platensis, waste water pond of catfish, modified  media
PEMANFAATAN VITAMIN C UNTUK MENINGKATKAN PERFORMA IMUNITAS BENIH IKAN GABUS (CHANNA STRIATA) dwinanti, sefti heza; Sasanti, Ade Dwi
Jurnal Akuakultur Rawa Indonesia Vol 7, No 1 (2019): JURNAL AKUAKULTUR RAWA INDONESIA
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (259.072 KB) | DOI: 10.36706/jari.v7i1.9077

Abstract

Ascorbic acid was one of the important nutrients for fish because it has the property as an antioxidant and imunomodulator that can improve the performance of fish. The purpose of this research is to support the production of snakehead fish (Channa striata) that have good growth and immunity. This research used a complete randomized design (CRD) consisted of 3 treatments and 3 replications. Ascorbic acid treatment consisted of P1 (0 mg.kg-1), P2 (50 mg.kg-1) and P3 (100 mg.kg-1). The results showed that the maintenance of snakehead fish (Channa striata) given ascorbic acid  with a doses of 100 mg.kg-1  for 30 days gave the best growth results and significantly different and absolute weight growth reached 1.83 g, absolute length of 18.7 mm and survival reached 95 , 83 %. For immunity performance, it can be seen from survival of fish exposed to salinity 20 ppt during 15 minute reach 73,3 % and formalin 10 % for 10 minute reach 66,7 % and disease prevalence percentage reach 16,7 %
TOKSISITAS DAN IMUNOGENISITAS PRODUK EKSTRASELULER STREPTOCOCCUS AGALACTIAE TIPE NON-HEMOLITIK PADA IKAN NILA (OREOCHROMIS NILOTICUS ) Dwinanti, Sefti Heza; ., Sukenda; Yuhana, Munti; M Lusiastuti, Angela
Jurnal Akuakultur Rawa Indonesia Vol 2, No 1 (2014): JURNAL AKUAKULTUR RAWA INDONESIA
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (514.092 KB) | DOI: 10.36706/jari.v2i1.2058

Abstract

ABSTRACT The aim of this research was to analyse the toxicity and immunogenicity of ECP of non-hemolytic S. agalactiae and to evaluate ECP as a material vaccine for prevention of S. agalactiae. Toxicity to tilapia was detected in the ECP. There was a chronic  mortality pattern which was shown after post ECP injection. By intraperitoneal injection into young tilapia (± 20 g), the median lethal dose were calculated at 633,9 µg/kg bodyweight for isolate 3 and 685,4 µg/kg bodyweight for isolate 5. Cytopathic effects of ECP to tilapiaâ??s lymphocytes were observed during 0, 30, 60 and 180 minutes. A mixture of ECP caused nuclear granulation and cytoplasmic streaming after 60 minutes. Using immunodiffusion analysis, precipitate line was demonstrated against tilapia anti-ECP sera, and there was bio-specific type anti sera against for each isolate. The ECP vaccine effective to protect tilapia from S. agalactiae was injected intraperitoneally (IP) at 2 x 105 CFU/ml. Tilapia vaccinated with ECP from isolat 3 which protein  283 µg/kg bodyweight had a RPS value 60%.  Tilapia vaccinated with ECP from isolat 5 which protein 408 µg/kg  had a RPS value 68%.   Keywords:  toxicity, immunogenicity, extracellular products, Streptococcus agalactiae, tilapia
MODIFICATION OF NON-SELECTIVE-SOLID MEDIA FOR AQUATIC BACTERIA Dwinanti, Sefti Heza; Tanbiyaskur, ,
Jurnal Akuakultur Indonesia Vol. 13 No. 2 (2014): Jurnal Akuakultur Indonesia
Publisher : ISSA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3085.908 KB) | DOI: 10.19027/jai.13.163-166

Abstract

ABSTRACT The objective of this research was to produce an alternative media for aquatic bacteria using fish broth as pepton source and commercial consumption agar as material. This experiment consisted of six treatments; four treatments used fish broth with doses 200 g/L; 400 g/L; 600 g/L and 800 g/L; two treatments as controls which were commercial agar as negative control and tryptic soy agar (TSA) as positive control. The result showed that treatment 200 g/L had performed as good as TSA for bacterial growth. Keywords: solid media, fish broth, aquatic bacteria  ABSTRAK Tujuan dari penelitian ini adalah menciptakan alternatif media padat nonselektif untuk bakteri akuatik dengan memanfaatkan kaldu daging ikan sebagai sumber pepton dan agar-agar konsumsi komersial (AKK) sebagai pemadat. Penelitian ini terdiri atas enam perlakuan yaitu; empat perlakuan menggunakan kaldu ikan yang dibuat dengan dosis 200 g/L; 400 g/L; 600 g/L and 800 g/L; dua perlakuan sebagai kontrol yaitu ART sebagai kontrol negatif dan tryptic soy agar (TSA) sebagai kontrol positif. Hasil penelitian menunjukkan bahwa pemanfaatan kaldu daging ikan pada dosis 200 g/L memiliki performa yang sama baiknya dengan TSA sebagai media tumbuh bakteri. Kata kunci: media padat, kaldu ikan, bakteri akuatik
PEMANFAATAN AIR KELAPA (COCOS NUCIFERA) UNTUK MASKULINISASI IKAN GUPPY (POECILIA RETICULATA) Dwinanti, Sefti Heza; Putra, M. Hanggara; Sasanti, Ade Dwi
Jurnal Akuakultur Rawa Indonesia Vol 6, No 2 (2018): JURNAL AKUAKULTUR RAWA INDONESIA
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (272.787 KB) | DOI: 10.36706/jari.v6i2.7155

Abstract

ABSTRACT               Masculinization is a method of  sex reversal technique that can direct sexuality from female to male. The purpose of this study was to determine the effects of coconut water on masculinization in guppy by immersion administration. The study used a completely randomized design (CRD) with three treatments and three replications. After 12 days post spawning, female guppies were immersed for 8 hours.The concentrations were : 0%(P0), 20% (P1), and 40% (P2). The parameters were observed including percentage of male, survival rate and water quality (thermal, pH and kalium concentration). Baby guppies were reared until sex can be determined which were 42 days of culture. The result showed that the percentage of male guppy fish was 54.44% (P0), 77.78% (P1) and 90.00% (P2). The survival rate of  larval during maintenance was 100% for all treatments. Water quality during maintenance was 27.0-28.40C for temperature and 6.38-7.20 for pH. To sum up, this experiment proved that coconut water can be used for masculinization by immersed pregnant female broadstock and it produced 90% male when immersed with 40% of coconut water. Keywords : Coconut water, guppy (Poecilia reticulata), masculinization
PEMANFAATAN MADU SEBAGAI BAHAN EKSTENDER UNTUK KRIOPRESERVASI SPERMA IKAN GABUS (CHANNA STRIATA) Mangkunegara, Anugerah Al-Amin; Dwinanti, Sefti Heza; Syaifudin, Mochamad
Jurnal Akuakultur Rawa Indonesia Vol 7, No 2 (2019): JURNAL AKUAKULTUR RAWA INDONESIA
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (420.86 KB) | DOI: 10.36706/jari.v7i2.9916

Abstract

Cryopreservation of channa is needed to improve reproduction quality of seeds and broodstock. Some components are important for cryopreservation including quality and quantity of extender. The aim of this study was to investigate the influence honey as extender at different ratio on channa sperm cryopreservation quality. The research used response surface methodology (RSM) with three treatments (T); 300 mg. ml-1 (T1), 400 mg. ml-1 (T2), 500 mg. ml-1 (T3), which all treatments were replicated 3 times. The processed semen was equilibrated at 5°C for 3 h (chilling), packed into straws (0.25 ml), frozen and stored in a liquid nitrogen tank for 24 h before thawing and assessment of quality. Parameters observed were sperm characteristics such as (color, pH, concentration and sperm volume), motility and viability before and after cryopreservation. The results of this study indicated best treatment was honey concentration at 400 mg.ml-1 (T2). After 7 days preservation, the motility value was about 40 ? 70 % (4 score), viability percentage was 64.15% and no abnormality was occurred on channa sperm.
PEMELIHARAAN IKAN NILA (Oreochromis niloticus) DENGAN SISTEM AKUAPONIK DI DESA KARANG ENDAH, GELUMBANG, KABUPATEN MUARA ENIM SUMATRA SELATAN Wijayanti, Marini; Khotimah, Husnul; Sasanti, Ade Dwi; Dwinanti, Sefti Heza; Rarassari, Madyasta Anggana
Journal of Aquaculture and Fish Health Vol 8, No 3 (2019): JAFH vol. 8 no. 3 September 2019
Publisher : Department of Fish Health Management and Aquaculture

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (300.032 KB) | DOI: 10.20473/jafh.v8i3.14901

Abstract

Akuaponik adalah gabungan budidaya ikan dan tanaman hidroponik dengan sistem resirkulasi.  Akuaponik merupakan salah satu alternatif yang dapat memanfaatkan limbah budidaya ikan serta mampu menghemat penggunaan lahan dan air. Tujuan dari kegiatan ini adalah memberikan informasi kepada para pembudidaya mengenai pemeliharaan ikan nila dan tanaman kangkung dengan sistem akuaponik. Kegiatan ini dilaksanakan pada bulan September sampai November 2018. Pemeliharaan ikan nila dengan sistem akuaponik dilakukan selama 37 hari, dikolam beton ukuran 3x1,5x1 m3, dengan jumlah ikan yang ditebar 200 ekor.  Hasil pemeliharaaan didapatkan pertumbuhan ikan nila sebesar 3,31±0,68 cm dan 21,59±4,28 g.  Laju pertumbuhan spesifik ikan nila sebesar 2,07%.hari-1 dengan kelangsungan hidup sebesar  95%. Tanaman kangkung mengalami pertumbuhan sebesar 47,86±2,81 cm dan 16,85±2,74 g.
PEMANFAATAN SARI BELIMBING WULUH (AVERRHOA BILIMBI L.) PADA PEMELIHARAAN UDANG VANAME (LITOPENAEUS VANNAMEI) UNTUK MENEKAN POPULASI BAKTERI VIBRIO SP. KOLONI HIJAU Handayani, Sri; Dwinanti, Sefti Heza; Hadi, Purnomo
Jurnal Masyarakat Akuakultur Indonesia Vol 3, No 1 (2019): In Press
Publisher : Masyarakat Akuakultur Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Sri Handayani, Sefti Heza Dwinanti and Purnomo Hadi. 2020. Utilization of Carambola Sari (Averrhoa bilimbi L.) in the Maintenance of Vaname Shrimp (Litopenaeus vannamei) to Suppress Population of Vibrio sp. Green Colony. Jurnal Sains Teknologi Akuakultur, 3(1) : 33-41. This research was conducted in July-August 2018 at PT. SyAqua Indonesia Serang, Banten. It used Completely Randomized Design (CRD) with three replicates and three treatments which were bilimbi juice in 20 ppm (T1), 30 ppm (T2) and without bilimbi or control (CT). The monitoring of Vibrio sp., defined as total Vibrio sp., total   yellow colony, total green colony, the ratio of total green colony, survival rate of shrimp and water quality. The result showed that bilimbi juice was able to suppress the population of Vibrio sp. in the maintenance media and shrimp body. At the end of the maintenance period (d7-d9), total population of green colony in treatment were lower than control with the ratio of the green colony was 0%. In contrast, bilimbi juice with concentration 20 ppm and 30 ppm had no significant effect (P>0,1). The best survival rate was given by T2 about 16% and based on regression y = 0.3589x+5.0279 the optimal dose to protect shrimp from Vibrio sp. by using bilimbi juice is about 264,62 ppm.
PENGGUNAAN EKSTRAK AKAR TUBA (DERRIS ELLIPTICA) DENGAN DOSIS YANG BERBEDA DALAM PENGANGKUTAN IKAN PATIN SISTEM TERTUTUP Monica, Dini Puspa; Syaifudin, Mochamad; Dwinanti, Sefti Heza
Jurnal Akuakultur Rawa Indonesia Vol 8, No 1 (2020): JURNAL AKUAKULTUR RAWA INDONESIA
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jari.v8i1.11164

Abstract

The transportation process can lead to stress which increases mortality in fish. Efforts to reduce mortality in the process of fish transportation can be conducted by minimizing the metabolic activities of fish during transportation. One of the natural substances that is used for fish transportation is tuba roots. The aim of this study is to determine the effect of different dosages of tuba root extract on the transport of catfish seeds with a closed transport system for 12 hours. This research was conducted at the Aquaculture Laboratory, Aquaculture Study Program, Faculty of Agriculture, Sriwijaya University. The research was conducted in April 2019. This study used a completely randomized design (CRD) method with four different dosage treatments (T) and three replications. The dosages of tuba root extract were: 0 ml.L-1 (T0), 0.05 ml.L-1 (T1), 0.10 ml.L-1 (T2), 0.15 ml.L-1 (T3). The parameters observed were blood glucose levels, water quality, survival of catfish after transportation and maintenance for 7 days. The results showed that T1 (0,05 ml.L-1) was gave the highest survival rate of 91.66±2.88%, with the lowest stress level indicated by blood glucose values 89±30.63. In addition, there was no further effect from the administration of tubal root extracts to protect the life of the fish after transportation and maintenance.Keywords : Tuba root, catfish, transportation