Department of Biology: Recent submissions
Now showing items 241-260 of 1257
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Pemberian Pakan Serbuk Daun Bangun-Bangun (Coleus Amboinicus) Terhadap Pertumbuhan dan Kelangsungan Hidup Ikan Patin (Pangasius Hypophthalmus)
(Universitas Sumatera Utara, 2022)Feeding of leaf bangun-bangun (Coleus amboinicus) on the growth and survival of catfish (Pangasius hypophthalmus) has been carried out at the Natural Resources and Environmental Processing Laboratory, Department of Biology, ... -
Pengaruh Kombinasi Ekstrak Etanol Daun Pegagan (Centella Asiatica L.) dan Daun Sirsak (Annona Muricata L.) Terhadap Luka Sayat pada Mencit
(Universitas Sumatera Utara, 2023)The study was conducted from January 2023 to May 2023 to analyze the effect of giving a combination of ethanol extracts of gotu kola leaves and soursop leaves on wound closure in animal models of mice. The study was organized ... -
Efek Nanoherbal Rhodomyrtus Tomentosa (Aiton) Hassk. Terhadap Fungsi Kognitif Belajar dan Memori Mus Musculus L. Berdasarkan Step Through Passive Avoidance
(Universitas Sumatera Utara, 2024)Learning and memory are complex cognitive functions. Memory functions in encoding, storing, and retrieving information which is then stored into short-term memory and long-term memory. This study aims to analyze the effect ... -
Jenis – Jenis Tumbuhan Paku (Pteridophyta) di Kebun Raya Sipirok Kabupaten Tapanuli Selatan Sumatera Utara
(Universitas Sumatera Utara, 2023)Sipirok Botanical Garden is one of the conservation areas in North Sumatra that has a diversity of flora and fauna, one of which is ferns. The study of ferns at Sipirok Botanical Garden had not been done so that the types ... -
Analisis Vegetasi dan Biomassa Pohon di Kebun Raya Sipirok Kabupaten Tapanuli Selatan Sumatera Utara
(Universitas Sumatera Utara, 2023)Sipirok Botanical Garden, South Tapanuli Regency, North Sumatra has a forest area estimated to have high diversity and carbon stocks. The purpose of this study was to analyze the structure and composition of vegetation and ... -
Keanekaragaman Makrofauna Tanah Pada Areal Perkebunan Kelapa Sawit yang tidak dan diberi Limbah Cair Pabrik Kelapa Sawit Sebagai Pupuk
(Universitas Sumatera Utara, 2023)The diversity of animals is influenced by the presence of dangerous chemicals in the soil. Chemicals can cause various problems, one of which causes the extinction of soil macrofauna types. This research was conducted to ... -
Keanekaragaman Genetik Durian (Durio zibethinus Murr.) dari Kecamatan Angkola Timur Kabupaten Tapanuli Selatan Berdasarkan Morfologi dan Simple Sequence Repeats (SSR)
(Universitas Sumatera Utara, 2023)Durian is one of tropical fruit that is very popular and has a high economic value in Indonesia. Tapanuli Selatan Regency is one of the production centers for durian (Durio zibethinus Murr.) in North Sumatra. One of the ... -
Keanekaragaman Makrofauna Tanah Pada Areal Rerumputan dan Semak yang tidak dan Diberi Limbah Cair Pabrik Kelapa Sawit Sebagai Pupuk
(Universitas Sumatera Utara, 2023)The role of soil macrofauna is to maintain soil fertility through the breakdown of the organic matter, the distribution of nutrients, the increasing aeration and the soil drainage. This research was conducted to determine ... -
Keanekaragaman Makrofauna Tanah Pada Areal Tanaman Rimbang (Solanum Torvum Swartz) yang diberi Limbah Cair Pabrik Kelapa Sawit Sebagai Pupuk
(Universitas Sumatera Utara, 2023)The presence of soil macrofauna at the area of rimbang plants treated with palm oil mill effluent with different application treatments (ponds 5, 6, and 7) indicates the different quality and fertility of the soil. The aim ... -
Hubungan Logam Berat Besi (Fe) dan Tembaga (Cu) terhadap Keanekaragaman Fitoplankton di Sungai Belawan
(Universitas Sumatera Utara, 2023)This research purpose to analyze the relationship between the physical chemical factors of water and the heavy metals Iron (Fe) and Copper (Cu) on the diversity of phytoplankton in the Belawan river, Pancur Batu sub-district, ... -
Makrofauna Tanah Sebagai Spesies Bioindikator Pada Areal Ladang Pisang (Musa Paradisiaca L.) yang diberi Limbah Cair Pabrik Kelapa Sawit
(Universitas Sumatera Utara, 2023)Bioindicators species are soil macrofauna that live and reproduce well. This study aim to analyzed the type, the density, the frequency of presence, the relative density and the bioindicator species of soil macrofauna ... -
Kepadatan, Pola Distribusi dan Pola Pertumbuhan Kerang Bulu (Anadara antiquata) di Perairan Pantai Sialang Buah, Kabupaten Serdang Bedagai, Sumatera Utara
(Universitas Sumatera Utara, 2023)Shellfish (Anadara antiquata) is one of the mollusc belong to the class of Bivalvia. Shellfish has high economic value because of its highly nutritional content. Sialang Buah Beach is famous for its shells, especially the ... -
Jenis-Jenis Anggrek (Orchidaceae) di Kebun Raya Sipirok Kabupaten Tapanuli Selatan Sumatera Utara
(Universitas Sumatera Utara, 2023)Sipirok Botanical Garden is one of the ex-situ conservation areas in North Sumatra Province that has a diversity of plant species, one of which is Orchidaceae. The research survey that had been conducted show the Sipirok ... -
Jamur Pemerangkap Nematoda Asal Lau Kawar sebagai Agen Biokontrol Meloidogyne hapla pada Tanaman Tomat (Solanum lycopersicum L.)
(Universitas Sumatera Utara, 2023)Root knot nematode is one of parasitic caused by nematodes on plants that can cause losses in agricultural product. The parasite is one of the obstacles in increasing of tomato plants (Solanum lycopersicum L.). One of ... -
Potensi Jamur Endofit Tanaman Serai (Cymbopogon nardus ) sebagai Penghasil Senyawa Antibakteri
(Universitas Sumatera Utara, 2023)Endophytic fungi are a group of functional microorganisms from plants that can be used as a sustainable source to produce bioactive metabolites including pharmaceuticals. Citronella grass (Cymbopogon nardus) is a kind of ... -
Potensi Sinbiotik Makanan Tradisional sebagai Immunostimulan pada Mencit Putih (Mus musculus)
(Universitas Sumatera Utara, 2023)Traditional food consisting of palm juice, dadih and tempoyak has a higher nutritional value compared to the original ingredients. The starter that is often used in the manufacture of these fermented products is Lactic ... -
Isolasi dan Profil Volatile Organic Compounds (VOC) oleh Kapang Endofit Asal Pneumatofor Avicennia alba
(Universitas Sumatera Utara, 2023)Mangrove forests and their vegetation are important ecosystems for the protection of terrestrial habitats in coastal areas, with high inputs of C and N sources. The mangrove ecosystem is a hotspot for biodiversity, especially ... -
Marchantiophyta di Kawasan Hutan Batang Toru Blok Barat Sumatera Utara
(Universitas Sumatera Utara, 2023)Mosses are a group of low plants and a part of biodiversity that has not received much attention. One area of North Sumatra that has never been reported on liverwort data is from the West Block Batang Toru Forest. This ... -
Estimasi Kepadatan Populasi Orangutan Sumatera (Pongo Abelii Lesson, 1827) Berdasarkan Jumlah Sarang di Restorasi Halaban Taman Nasional Gunung Leuser
(Universitas Sumatera Utara, 2023)The Sumatran orangutan (Pongo abelii) was a Sumatran endemic primate that was critically endangered. Halaban National Park at Gunung Leuser was habitat of Sumatran orangutan. The density of orangutan in their ecosystem was ... -
Kepadatan dan Pola Persebaran Populasi Burung Rangkong (Bucerotidae) di Stasiun Penelitian Ketambe Kabupaten Aceh Tenggara
(Universitas Sumatera Utara, 2023)The existence of hornbills in the wild is very important to know in monitoring and protection efforts, especially in Ketambe Research Station. The aim of this study was to study the density, distribution pattern of the ...