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Pratiwy, Fittrie Meyllianawaty
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EFFECT OF SALINITY ON SPECIFIC GROWTH RATE AND CANNIBALISM OF TAMBAQUI (Colossoma macropomum) JUVENILES IN A CONTROLLED ENVIRONMENT Ramadhani, Gilbran Muhammad; Pratiwy, Fittrie Meyllianawaty; Iskandar, ,; Herawati, Titin
AQUASAINS Vol. 13 No. 2 (2025): March 2025
Publisher : Jurusan Perikanan dan Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aqs.v13i2.p%p

Abstract

The objective of this study was to analyze the effect of salinity on the reduction of cannibalism in tambaqui juveniles and their specific growth rate. The study lasted for 35 days. The research method used was a completely randomized design (CRD) experiment with two treatments and six replications. The treatments were (A) no salinity and (B) salinity at 5 ppt. The parameters observed in this study were specific growth rate, survival rate, cannibalism, and water quality. The results showed that using 5 ppt salinity (B) reduced cannibalism in tambaqui juveniles, while specific growth rate and survival rate did not differ significantly between treatments. Keywords: Tambaqui, cannibalism, salinity, survival rate.
IDENTIFIKASI BAKTERI DAN UJI AKTIVITAS ANTIBAKTERI EKSTRAK BAKTERI ENDOFIT YANG DIISOLASI DARI ALGA MERAH (Gracilaria sp.) Pratiwy, Fittrie Meyllianawaty; Arifah, Fajar Nurul
Bioma Vol. 18 No. 2 (2022): Bioma
Publisher : LPPM Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/Bioma18(2).3

Abstract

Glacilaria sp. is one type of red algae that is widely found in Indonesia. Red algae has anti-microbial, anti-bacterial, anti-viral, anti-fungal, and other benefits. Endophytic microbes associated with seaweeds such as bacteria and fungus are thought to be able to produce the same bioactive compounds as their host, seaweeds. Several studies have also shown that the antibacterial activity of endophytic microbes can inhibit pathogenic bacteria. This study was conducted to identify endophytic bacteria present in Glacilaria sp. in inhibiting the growth of pathogenic bacteria (Vibrio sp. and S. aureus). Endophytic bacteria found in Gracilaria sp. isolated and tested for antibacterial activity using Staphylococcus aureus and Vibrio sp. bacteria. with disc disc method. the results showed that endophytic bacteria of the red algae Gracilaria sp. has antibacterial activity against bacteria S. aureus and Vibrio sp. It has inhibitory zones of 8 mm and 7.6 mm, respectively
EFEKTIVITAS PEMBERLAKUAN RESTRICTED FEEDING PADA BUDIDAYA IKAN : MINI REVIEW Haetami, Kiki; Abun, Abun; Pratiwy, Fittrie Meyllianawaty
Jurnal Ruaya : Jurnal Penelitian dan Kajian Ilmu Perikanan dan Kelautan Vol 12 No 1 (2024): Jurnal Ruaya : Jurnal Penelitian dan Kajian Ilmu Perikanan dan Kelautan
Publisher : UNIVERSITAS MUHAMMADIYAH PONTIANAK

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Abstract

Restricted feeding adalah metode pemberian pakan pada budidaya ikan dengan jumlah pakan (feeding rate) yang diberikan pada ikan dibatasi dalam jumlah tertentu dalam periode waktu tertentu. Tujuan dari restricted feeding adalah untuk mengoptimalkan pemanfaatan pakan dan pertumbuhan ikan, mengurangi limbah pakan yang tidak dimakan oleh ikan, serta mengurangi biaya operasional budidaya. Pembatasan pakan yang diberikan dapat meningkatkan efisiensi dalam pemanfaatan pakan yang digunakan untuk pertumbuhan. Selain itu, pembatasan dan pemberian pakan kembali secara berkala akan membuat kondisi ikan lebih baik karena ikan tidak akan stress, terjangkit wabah, kotornya air dari kolam yang akan berdampak pada pertumbuhan ikan atau hewan yang dibudidayakan tersebut. Sistem Bioflok dapat meningkatkan kualitas air, performa pertumbuhan dan fungsi kekebalan ikan nila dibandingkan dengan sistem clear water (CW). Bioflok sebagai makanan tambahan dalam media kultur memungkinkan penggunaan pakan terbatas saat benih ikan nila dibesarkan dalam sistem bioflok. Pembatasan pakan secara signifikan mengakibatkan penurunan laju pakan dan kekebalan bawaan.
EFFECT OF ADDITION DIFFERENT LEVELS OF SOYBEAN OIL IN COMMERCIAL FISH FEED ON GROWTH PERFORMANCE, FEED EFFICIENCY, EPA AND DHA FOR PERKASA PANGASIID (Pangasianodon hypophthalmus Sauvage, 1878) Arifah, Fajar Nurul; Rostika, Rita; Herawati, Titin; Pratiwy, Fittrie Meyllianawaty; Darmawan, Jadmiko
AQUASAINS Vol. 11 No. 2 (2023)
Publisher : Jurusan Perikanan dan Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aqs.v11i2.p1321 - 1332

Abstract

Pangasius is a freshwater fish included in the main commodity by the Ministry of Marine Affairs and Fisheries, Indonesia. Siamese catfish production ranked 4th in freshwater fish commodities in 2016 after goldfish, tilapia, and catfish. Pangasius has a lack of EPA (Eicosapentaenoic acid) and DHA (Docosahexaenoic acid) if compared with fish from the sea. Application of additional different levels of soybean oil in commercial fish fed to enhance EPA (Eicosapentaenoic acid) and DHA (Docosahexaenoic acid) in Perkasa pangasiid flesh. This study was conducted to determine the effect of adding soybean oil with different levels of commercial fish feed given to Perkasa striped catfish on growth performance, feed efficiency, EPA (Eicosapentaenoic acid), and DHA (Docosahexaenoic acid). This experimental study used a Complete Randomized Design (CDR) with triplicates and five treatments with additional levels of soybean oil in commercial fish fed: (a) 0%, (b) 2%, (c) 4%, (d) 6%, and (e) 8%. The result showed that treatment of (e) is the best treatment for increasing the EPA (Eicosapentaenoic acid) and DHA (Docosahexaenoic acid) in Pangasius flesh. However, additional different levels of soybean oil in the commercial fish feed have no negative effect on growth performance and feed efficiency in Perkasa pangasiid.
ANALYSIS OF GROWTH PERFORMANCE AND FEED EFFICIENCY OF GIANT GOURAMY (Osphronemus gouramy) THROUGH THE ADDITION OF CHITOSAN AND PROBIOTICS Khayrurraja, Ayja; Grandiosa, Roffi; Pratiwy, Fittrie Meyllianawaty; Iskandar, Iskandar
AQUASAINS Vol. 12 No. 1 (2023)
Publisher : Jurusan Perikanan dan Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aqs.v12i1.p1401-1412

Abstract

The purpose of this study was to determine the optimum level of addition of chitosan and probiotics in feed to increase the growth rate and daily feed consumption of giant gouramy  (Osphronemus gouramy). The method used in this research is an experimental method of completely randomized design (CRD), which consists of five treatments and three replications. The treatments used were (A) without giving chitosan and probiotics (control), (B) giving chitosan at 7.5 g/kg feed and probiotics at 10 ml/kg feed, (C) giving chitosan at 7.5 g /kg feed and probiotics at 15 ml/kg feed, (D) chitosan at 7.5 g/kg feed and probiotics at 20 ml/kg feed, (E) chitosan at 7.5 g/kg feed and probiotics of 25 ml/kg feed. The parameters measured were absolute length absolute weight, specific growth rate, feed utilization efficiency ratio (EPP), survival rate, and water quality. Data were analyzed using the Anova test at the 5% level. The results showed that the addition of different concentrations of chitosan and probiotics to commercial feeds could affect growth, and EPP but did not affect the survival rate of giant gouramy. The results obtained during the study showed that treatment C with the addition of chitosan of 7.5 g/kg of feed and probiotics of 15 ml/kg of feed resulted in the highest absolute length growth of 4.87 cm, the highest absolute weight growth of 19,35 g, the highest daily growth rate was 46,08%, the feed efficiency was 91,5% and survival rate was 97,78%. Whereas in terms of the effectiveness of treatment B with the addition of chitosan 7.5 g/kg of feed and less probiotics, namely as much as 10 ml/kg of feed, the treatment was as good as treatment C.
Co-Authors Abun Abun Adriani, Yuli Anrose, Zahrah Alifia Ghaida Arifah, Fajar Nurul Darmawan, Jadmiko Faddilah, Thallita Nasywa Fauziantaka, Djordan Bembie Handaka, Asep Agus Herman, Roffi Grandiosa ISKANDAR Iskandar Iskandar Iskandar, , JUNIANTO JUNIANTO Khayrurraja, Ayja Kiki Haetami Lantun Paradhita Dewanti Nabila, Tiara Nurul Nurkholifah, Adinda Prananda, Muhammad Rizky Ramadhani, Gilbran Muhammad Rita Rostika Roffi Grandiosa Titin Herawati Yuli Andriani Zahidah - Zidni, Irfan