Article Per Year (5 Year)
p-Index From 2021 - 2026
6.77
P-Index
This Author published in this journals
All Journal BULETIN OSEANOGRAFI MARINA Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Jurnal Kelautan Tropis Acta Aquatica: Aquatic Sciences Journal Jurnal Biologi Tropis Jurnal Pengelolaan Perikanan Tropis (Journal Of Tropical Fisheries Management) Jurnal Agroqua: Media Informasi Agronomi dan Budidaya Perairan SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Jurnal Fish Protech GERVASI: Jurnal Pengabdian kepada Masyarakat Jurnal Ilmiah Samudra Akuatika JURNAL PERIKANAN TROPIS Jurnal Akuakultura Universitas Teuku Umar Jurnal Abdi Insani Habitus Aquatica : Journal of Aquatic Resources and Fisheries Management Mahseer : Jurnal Ilmu-ilmu Perairan dan Perikanan Jurnal Cakrawala Ilmiah Jurnal Aquaculture Indonesia Jurnal Perikanan Terpadu Jurnal Perikanan Journal of Aquaculture Science
Putriningtias, Andika
Program Studi Akuakultur, Fakultas Pertanian, Universitas Samudra
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Nursing Public Health Social Sciences Veterinary Other

Published : 54 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 54 Documents
Search

 1   2   3   4   5 
EFEKTIVITAS PERASAN DAUN SIRIH HIJAU (Piper betle) SEBAGAI BAHAN ANESTESI ALAMI PADA INDUK UDANG GALAH (Macrobrachium rosenbergii) Mudaza, Iqbal; Rosmaiti, Rosmaiti; Putriningtias, Andika
JURNAL AKUAKULTURA Vol 4, No 2 (2020): Jurnal Akuakultura Universitas Teuku Umar
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/ja.v4i2.3457

Abstract

Shrimp is a type of crustacean biota that lives in fresh, brackish and marine waters. Giant prawns are also freshwater shrimp that have high economic value, and are a fishery commodity that is widely observed by local and foreign consumers. Consumer demand for shrimp commodities has experienced a shift towards meeting the need for live shrimp. One of the methods used in the process of optimally transporting shrimp is to perform shrimp anesthesia with the aim to maintain the fiological and morphological conditions of the shrimp, so that the shrimp is expected to arrive in a state of life by using green betel leaf extract. The design used in this study is complete randomized design (CRD) consisting of 4 treatments with 5 replications namely in the treatment of 1 immersion at a dose of 50 ml / 4 liters of water, 2 immersion treatment at a dose of 100 ml / 4 liters of water, 3 immersion treatment at a dose of 150 ml / 4 liters water and 4 immersion treatment with a dose of 200 ml / 4 liters of water. Based on the results of the study, it can be concluded that the difference in the dose of green betel leaf extract significantly affects the time of fainting and conscious time of giant prawns, the best dose that can be given to shrimp as an anesthetic during transportation dry system for ± 6 hours is treatment 4 namely with ex dose betel leaf powder 200 ml / 4 L water.
Water Quality in the Habitat of Sembilang Fish (Plotosus canius) in the Estuary of Langsa City: Kualitas Air pada Habitat Ikan Sembilang (Plotosus canius) di Estuari Kota Langsa Dari, Try Oelan; Haser, Teuku Fadlon; Putriningtias, Andika; Darsiani, Darsiani; Febri, Suri Purnama; Harahap, Antoni; Nurdin, Muh Saleh; Iskandar, Andri
Jurnal Pengelolaan Perikanan Tropis (Journal of Tropical Fisheries Management) Vol 7 No 2 (2023): Journal of Tropical Fisheries Management
Publisher : Departement of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jppt.v7i2.48146

Abstract

Ikan Sembilang (Plotosus canius) adalah salah satu ikan yang terdapat di perairan estuari yang cukup digemari oleh masyarakat. Penangkapan yang berlebihan dapat menyebabkan stok ikan sembilang terancam mengalami pengurangan jumlah. Tujuan dari penelitian ini adalah kualitas air serta mengkaji kondisi lingkungan habitat ikan sembilang pada musim kemarau dan musim penghujan di perairan estuari Kota Langsa. Hasil riset ini diharapkan dapat menjadi informasi awal untuk kegiatan domestikasi ikan sembilang. Penelitian ini menggunakan metode deskriptif dengan melakukan pengumpulan data kualitas air pada 3 (tiga) titik stasiun penelitian, baik secara insitu maupun uji laboratorium. Pengumpulan data diperoleh dari pengukuran sampel ikan hasil tangkapan nelayan di perairan estuari Langsa. Hasil penelitian menunjukkan bahwa parameter kualitas air pada musim kemarau dan musim penghujan pada perairan estuari Kota Langsa masih berada pada kondisi yang layak bagi kehidupan dan mendukung kelestarian ikan sembilang. Musim sangat mempengaruhi bobot tubuh ikan baik jantan maupun betina, musim kemarau bobot betina berkisar 120-220 g dan jantan 120-240 g sedangkan musim penghujan bobot betina berkisar 134-572 g dan jantan 136-260 g.
PENERAPAN PAKAN MANDIRI BERBASIS BAHAN BAKU TEPUNG SILASE LIMBAH USUS AYAM PADA BUDIDAYA IKAN LELE Komariyah, Siti; Putriningtias, Andika; Saragih, Faoeza Hafiz
GERVASI: Jurnal Pengabdian kepada Masyarakat Vol. 8 No. 2 (2024): GERVASI: Jurnal Pengabdian Kepada Masyarakat
Publisher : LPPM IKIP PGRI Pontianak

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31571/gervasi.v8i2.6634

Abstract

Kegiatan pengabdian ini bertujuan untuk memberikan pemahaman kepada kelompok pembudidaya ikan lele di Desa Sukajadi Kebun Ireng, Kec. Langsa Lama tentang penerapan pakan mandiri berbasis tepung silase usus ayam. Terdapat tiga tahapan dalam metode pelaksanaan kegiatan pengabdian ini, yaitu tahap persiapan (pra survey), tahap pelaksanaan (sosialisasi dan pelatihan pembuatan pakan mandiri), dan monev (monitoring dan evaluasi).  Berhasarkan hasil pra survey diperoleh informasi para pembudiddaya di desa Sukajadi Kebon Ireng mengeluhkan tentang harga pakan ikan yang mahal, sementara harga jual ikan yang relative murah. Hasil dari sosialisasi dan pelatihan pembuatan pakan ikan, para pembudidaya sudah memahami prosedur pembuatan pakan secara mandiri. Sementara berdasarkan hasil monev, belum ada pembudidaya yang mencoba membuat pakan mandiri dengan alasan belum memiliki alat untuk mencetak pakan. Sehingga ini masih menjadi kendala dalam penerapan pakan mandiri dalam kegiatan budidaya ikan lele di desa mitra. Namun tujuan dari kegiatan ini sudah tercapai yaitu memberikan pemahaman kepada mitra.
Sintasan, Kondisi Pertumbuhan, Pertumbuhan Penciri dan Faktor yang Mempengaruhi Pertumbuhan Kepiting Portunus pelagicus (Decapoda: Portunidae) di Ekosistem Mangrove Desa Kuala Langsa Putriningtias, Andika; Sinaga, Sorbakti; Faisal, Teuku Muhammad; Nugrahawati, Anis; Hatta, Muhammad; Syahrial, Syahrial; Manullang, Irma Warny Lamberta; Sihite, Fitri Suxes; Jamil, Muhammad
Jurnal Kelautan Tropis Vol 27, No 1 (2024): JURNAL KELAUTAN TROPIS
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jkt.v27i1.19136

Abstract

The study was conducted in May - June 2018 in the water bodies of the mangrove ecosystem of Kuala Langsa Village with the aim of knowing survival, growth conditions, growth characteristics and environmental factors that affect the growth of Portunus pelagicus crabs while in the mangrove ecosystem. The method used was a one-factor completely randomized design with 4 treatment levels, where environmental parameters were collected in situ and ex situ with statistical analysis using ANOVA, orthogonal polynomials and PCA. The results of the study showed that the pH of the water ranged from 7.40 - 7.57, salinity 26.17 - 28.87‰, DO 4.92 - 5.88 mg/L, temperature 29.89 - 30.71°C, TDS 338.54 - 358.64 mg/L, pH H2O 4.43 - 4.51, pH KCL 2.96 - 3.59, C-organic 3.03 - 6.52%, N-total 0.19 - 0.26%, C/N 16.09 - 26.10 and P-available 19.12 - 21.52 ppm. In addition, survival ranged from 41.60 - 88.80%, absolute growth of carapace 13.80 - 30.80 cm, relative carapace 0.56 - 1.02 cm, absolute weight 16.10 - 18.50 gr, daily length 0.46 - 0.65 cm, daily width 0.36 - 0.59 cm and daily weight 0.72 - 0.93 gr. PCA analysis showed that the growth characteristics of P. pelagicus crabs in the mangrove ecosystem waters of Kuala Langsa Village were absolute length growth and daily length growth, while environmental factors that influenced their growth were C/N sediment parameters, C-organic sediments and water temperature.  Kajian dilakukan pada bulan Mei – Juni 2018 di badan perairan ekosistem mangrove Desa Kuala Langsa dengan tujuan untuk mengetahui sintasan, kondisi pertumbuhan, pertumbuhan penciri dan faktor lingkungan yang mempengaruhi pertumbuhan kepiting Portunus pelagicus saat berada di ekosistem mangrove. Metode yang digunakan adalah rancangan acak lengkap satu faktor dengan 4 taraf perlakuan, dimana parameter lingkungan dikumpulkan secara in situ dan ex situ dengan analisis statistik yang digunakan adalah ANOVA, polinomial ortogonal dan PCA. Hasil kajian memperlihatkan bahwa pH air berkisar antara 7.40 - 7.57, salinitas 26.17 - 28.87‰, DO 4.92 - 5.88 mg/L, suhu 29.89 - 30.71°C, TDS 338.54 - 358.64 mg/L, pH H2O 4.43 - 4.51, pH KCL 2.96 - 3.59, C-organik 3.03 - 6.52%, N-total 0.19 - 0.26%, C/N 16.09 - 26.10 dan P-tersedia 19.12 - 21.52 ppm. Selain itu, untuk sintasan berkisar antara 41.60 - 88.80%, pertumbuhan mutlak karapas 13.80 - 30.80 cm, nisbi karapas 0.56 - 1.02 cm, berat mutlak 16.10 - 18.50 gr, panjang harian 0.46 - 0.65 cm, lebar harian 0.36 - 0.59 cm dan berat harian 0.72 - 0.93 gr. Untuk analisis PCA menunjukkan bahwa penciri pertumbuhan kepiting P. pelagicus di perairan ekosistem mangrove Desa Kuala Langsa adalah pertumbuhan panjang mutlak dan pertumbuhan panjang harian, sedangkan faktor lingkungan yang mempengaruhi pertumbuhannya adalah parameter C/N sedimen, C-organik sedimen dan suhu air.
Water Quality in Coastal Area of Ujung Perling Island, Langsa City, Aceh: Kualitas Perairan di Daerah Pesisir Pulau Ujung Perling, Kota Langsa, Aceh Putriningtias, Andika; Bahri, Samsul; Faisal, Teuku Muhammad; Harahap, Antoni
Habitus Aquatica Vol 2 No 2 (2021): Habitus Aquatica : Journal of Aquatic Resources and Fisheries Management
Publisher : Department of Aquatic Resources Management, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/HAJ.2.1.95

Abstract

Pulau Ujung Perling berada di wilayah Kota Langsa merupakan daerah pesisir yang menjadi tempat bagi biota laut untuk mencari makan (feeding ground) dan melakukan pemijahan (nursery ground). Penelitian ini dilaksanakan pada bulan juni 2020 di wilayah perairan pulau Ujung Perling. Metode penelitian yang digunakan yaitu deskriptif eksploratif. Titik pengambilan data dibagi menjadi 4 stasiun, setiap stasiun diambil sebanyak 3 kali ulangan pada pagi, siang dan sore hari. Pengambilan data kualitas air yaitu pH, suhu, dan oksigen terlarut menggunakan multicheker parameter, kedalaman dan kecerahan menggunakan secchi disk, dan salinitas menggunakan refractometer. Pengambilan data seluruh parameter dengan frekuensi seminggu sekali selama 1 bulan. Hasil dari penelitian ini yaitu suhu air berkisar antara 27–30ºC, salinitas berkisar antara 30,1–32 ppt, kedalaman berkisar antara 0,5–5 m, pH 7–8,1, dan DO 5,1–8,2 mg/L.
Analisys of Oxygen Consumption Rate in a Closed Transport System for Koi Fish (Cyprinus carpio) Anesthesia with Extracted Green Betel Leaves (Piper betle L) Manurung, Yeremias Person; Putriningtias, Andika; Haser, Teuku Fadlon
Jurnal Ilmiah Samudra Akuatika Vol 8 No 2 (2024): Jurnal Ilmiah Samudra Akuatika
Publisher : Fakultas Pertanian Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33059/jisa.v8i2.10907

Abstract

Koi fish are a type of carp that have very beautiful and tame ornaments. This fish is often considered a variant of the Goldfish, even though it is genetically different. Transporting live fish can be defined as an action of moving fish in a living state from one place to another, with measures taken to ensure the fish's survival remains high until they reach their destination. Closed transportation is carried out by means of transport that is not directly connected to the air, often done to maintain the rate of oxygen consumption. Plants called betel leaves serve as herbal medicines and anesthetics for various fish species, including koi fish. This study aims to determine the best dose of green betel leaf extract as an anesthetic for closed transport on the survival of koi fish fry transported for 8 hours, using different doses of 10ml/L, 20ml/L, 30ml/L, and 40ml/L with a Completely Randomized Design (CRD) method. The results of this study show survival rates at doses of 10ml/L 83%, 20ml/L 90%, 30ml/L 77%, and 40ml/L 60%. In addition to testing for survival during transport, this study also aims to measure the Oxygen Consumption Rate (OCR) of each treatment. The results of this study show the OCR test results: P1 0.036 mgO2/min, P2 0.027 mgO2/min, P3 0.025 mgO2/min, and P4 0.022 mgO2/min
EFEKTIVITAS DOSIS EKSTRAK BIJI KARET (Havea brasiliensi) TERHADAP KEBERHASILAN ANESTESI BENIH IKAN KOI (Cyprinus carpio) Rani, Huna Selfia; Putriningtias, Andika; Febri, Suri Purnama
JURNAL PERIKANAN TROPIS Vol 11, No 2 (2024)
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jpt.v11i2.10193

Abstract

Koi fish (Cyprinus carpio) is a type of freshwater ornamental fish that is in great demand because it has an attractive color pattern. Seed transportation activities are generally carried out at high densities which can cause fish to become stressed to the point of death. Prior to transportation, it is necessary to have anesthetic activities to find out how long the fish survive with a certain dose. The use of natural anesthetic substances has been widely used, one of which is rubber seed extract (Havea brasiliensi). The purpose of this study was to determine the effectiveness of rubber seed extract on the success of koi fish seeds. The research was conducted in January 2023. The research method used a completely randomized design, consisting of 4 treatments and 4 replications. The results of this study showed that the higher the concentration of rubber seed extract given, the faster the test fish fainted. Whereas for the survival of koi fish seeds in the highest anesthetic success test, P1 (control) was 100% because at P1 no treatment was given, and the lowest result was in treatment P4 (5ml/L) of 62%.Keywords: Anesthesia, Rubber seeds, koi fish, oxygen consumption rate
Diversity of fish in Kuala Langsa Waters Langsa City Razi, Fakhrur; Isma, Muhammad Fauzan; Febri, Suri Purnama; Putriningtias, Andika
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica, Vol. 12: No. 1 (April, 2025)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v1i1.11629

Abstract

The purpose of this study was to identify the diversity of fish species based on the waters in Kuala Langsa Village and provide outputs in the form of water conditions in Kuala Langsa Village. Fish sampling was carried out using the Purposive Sampling method. The composition of fish species caught at the three stations consisted of 12 species, namely: Mystus nemerus, Channa striata, Chanos chanos, Drepane punctate, Stolephorus sp, Gerres erythourus, Leiognathus splendens, Lutjanus johnii, Planiliza subviridis, Johnius belangerii, Epinephelus sp., Terapon jarbua. The total number of fish caught at station I was 36 fish, station II was 22 fish, and station III was 28 fish. Total relative abundance at stations I, II, and III in Kuala Langsa Kota waters obtained the highest abundance of fish from the species Leiognathus splendens with a value of 31.40% while the lowest relative abundance was found in the species Epinephelus sp and Chanos with a value of 1.16%. The diversity index at stations I, II, III ranged from 1.73 to 2.19. The three stations had moderate diversity criteria, indicating that the biological condition and fish diversity were still stable. Uniformity values of stations I, II, III, range from 1.53-1.59 which indicates high uniformity. This is due to the high uniformity because the fish population is spread evenly at each station. Dominance values at stations I, II, III range from 0.14-0.24 indicating low dominance or no fish species dominating at each station. Keywords: Diversity; Dominance; Kuala Langsa; Relative abundance; Uniformity
EFEKTIVITAS EKSTRAK DAUN NANGKA (Artocarphus heterophyllus) UNTUK PENGOBATAN INFEKSI BAKTERI Aeromonas hydrophila PADA BENIH NILA SALIN (Oreochromis sp) Anggita, Rina; AS, Agus Putra; Putriningtias, Andika
JURNAL PERIKANAN TROPIS Vol 12, No 1 (2025)
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jpt.v12i1.10231

Abstract

Tilapia (Oreochromis sp) is a fishery commodity that is popular with the public because it has thick flesh and a delicious taste. This study aims to test the effectiveness of jackfruit (Artocarphus heterophylluis) leaf extract in treating Aeromonas hydrophila bacterial infections in salted tilapia seeds (Oreochromis sp). The research method used in the research was a Completely Randomized Design (CRD) method with 4 treatments and 3 replications. The treatments that will be carried out are PEN0 (Control) PEN1 (0.5 ml/L), PEN2 (1.5 ml/L) and PEN3 (2.0 ml/L). Parameters observed: Clinical symptoms, length of healing time, survival rate and water quality measurements. The results of the research were that the use of jackfruit leaf extract had an effect on the survival of salted tilapia (Oreochromis sp) seeds infected with Aeromonas hydrophila bacteria. The best survival rate for saline tilapia seeds (Oreochromis sp) was found in PEN3 (jackfruit leaf extract 2.0 ml/L) with a percentage of 83% and the lowest survival rate was found in PEN0 with a percentage of 0%.
Pengaruh Kadar Protein Berbeda Terhadap Pertumbuhan Ikan Relo (Rasbora sumantrana) Malik, Mhd; Komariyah, Siti; Putriningtias, Andika; Aisyah Putri Batubara, Pebry; Hasri, Iwan
Jurnal Aquaculture Indonesia Vol 4, No 2 (2025)
Publisher : Prodi Akuakultur Fakultas Perikanan Universitas Dharmawangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46576/jai.v4i2.6556

Abstract

Ikan relo merupakan ikan native Danau Laut Tawar, Takengon, Aceh Tengah yang mulai dikembangkan sebagai komoditas budidaya. Tujuan dalam penelitian ini yaitu mengevaluasi kadar protein pakan yang berbeda terhadap pertumbuhan benih ikan relo. Rancangan yang digunakan dalam penelitian ini adalah RAL dengan 4 perlakuan yang diulang sebanyak 3 kali. Perlakuan yang diberikan adalah kadar protein pakan 32% (P1), 34% (P2), 36% (P3), dan 41% (P4). Parameter yang diamati adalah jumlah konsumsi pakan, pertumbuhan bobot mutlak, laju pertumbuhan harian, efisiensi pakan dan kelangsungan hidup. Berdasarkan uji Anova, perlakuan yang diberikan memberikan  pengaruh tidak signifikan (P>0.05) terhadap jumlah konsumsi pakan dan kelangsungan hidup benih ikan relo, namun berpengaruh signifikan (P<0.05) terhadap parameter pertumbuhan bobot mutlak, laju pertumbuhan harian dan efisiensi pakan. Perlakuan terbaik adalah pemberian pakan dengan kadar protein 41%. Hal ini dilihat dari kinerja pertumbuhan benih ikan relo pada P4 paling tinggi diantara perlakuan lainnya
Co-Authors Adillah, Mutiara Anggun Fathin Agus Putra AS Alham, Fiddini Anggita, Rina Anis Nugrahawati Anzarwati, Tika Azmi, Fauziah Batubara, Paisal Chika Clenecia Pakpahan Cut Mulyani Cut Mulyani Dari, Try Oelan darsiani, Darsiani Ema Wati Eti Rutmawati Sihite Eti Tresnowati Fakhrur Razi Farlizah, Thasya Farlizah, Thasya Thasya Fauziah Azmi Fauziah Azmi Febri, Suri Purnama Fiddini Alham Fitri Suxes Sihite Hanisah Hanisah Harahap, Antoni Haser, Teuku Fadlon Hasibuan, Destriana Helmy Akbar Helmy Akbar Henny Dameria Sihite Ika Rezvani Aprita Iskandar, Andri Islama, Dini Isma, Muhammad Fauzan Iwan Hasri Kamal, Sauki Komariyah, Siti Komariyah, Sitti Ladio, Mika Malik, Mhd Mandalica Simanjuntak Manullang, Irma Warny Lamberta Manurung, Yeremias Person Maulana, Febri Mudaza, Iqbal Muh. Saleh Nurdin Muhammad Fauzan Isma Muhammad Furqan Ramadhana Muhammad Haikal Muhammad Hatta Muhammad Hidayat Muhammad Jamil Muhammad JAMIL Nazlia, Suraiya Nizar, Khairul Pebry Aisyah Putri Batubara Purba, Mustika Ramadhan, Muhammad Rizqy Rani, Huna Selfia Retno Hartati Riska Dara Delima Sarumaha Rosmaiti Rosmaiti Rosmaiti, Rosmaiti Rudhi Pribadi Samsul Bahri Saragih, M.Sc, Faoeza Hafiz Sarma Octaviani Nainggolan Siagian, Dame Intan Sihite, Fitri Suxes Silvia Anzhita Silvia Anzitha Simanjuntak, Mandalica Sinaga, Lisna Sinaga, Sorbakti Sipa Auliana Siti Komariyah Siti Komariyah Siti Komariyah Sondang Rosnaria Purba Sorbakti Sinaga Suri Purnama Febri Suri Purnama Febri Suri Purnama Febri Syahrial Syahrial SYAHRIAL SYAHRIAL Syamsul Bahri Tanjung, Andini Fadila Tariska Putri Ramadani Teuku Fadlon Haser Teuku Fadlon Haser Teuku Kusnafizal Teuku Muhammad Faisal Teuku Muhammad Faisal Teuku Muhammad Faisal Teuku Muhammad Faisal, Teuku Muhammad Thursina Mahyuddin Wan Suha Salsabila Yusnaini Anjani Siregar