Department of Biology: Recent submissions
Now showing items 221-240 of 1257
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Induksi Kalus, Protocorm-Like Bodies (PLBs), Dan Tunas Dendrobium sp. pada Media MS dengan Variasi Kombinasi Benzyl Amino Purine (BAP) dan Auksin
(Universitas Sumatera Utara, 2023)Conventional propagation of Dendrobium orchids requires a relatively longer time and low success rate, so the propagation technique needs to be carried out using tissue culture techniques, among which by varying growth ... -
Penambahan Ekstrak Daun Wortel (Daucus Carota L) pada Pakan Buatan Terhadap Pertumbuhan dan Kelangsungan Hidup Benih Ikan Nila (Oreochromis Niloticus)
(Universitas Sumatera Utara, 2023)The research to analyze the effect of carrot leaf extract (Daucus carota L) addition to the the artificial feed on the growth and survival of tilapia fry (Oreochromis niloticus). This research had been carried out on January ... -
Pola Asuh Induk Terhadap Anak Gajah (Elephas Maximus Sumatranus) pada Aktivitas Nokturnal di Taman Nasional Gunung Leuser Resort Tangkahan, Langkat, Sumatera Utara
(Universitas Sumatera Utara, 2023)The Sumatran elephant (Elephas maximus sumatranus) is one of Indonesia's fauna. Parenting pattern is needed to form characterization of the elephant and carried out at juvenile stage because at that time the elephant calf ... -
Jenis dan Kepadatan Nyamuk Sebagai Vektor yang Bersifat Antropofilik dan Zoofilik di Desa Ujung Bandar, Kabupaten Langkat, Sumatera Utara
(Universitas Sumatera Utara, 2023)Ujung Bandar Village is a village located at the Leuser mountains which has high humid air, low air temperatures and fairly high rainfall. Such environmental conditions allow the village to become a breeding ground for ... -
Efektivitas Light Trap dan Bg Senttinel Trap Terhadap Kepadatan Nyamuk di Desa Ujung Bandar Kecamatan Salapian Kabupaten Langkat Sumatera Utara
(Universitas Sumatera Utara, 2023)Mosquitoes are one of the insects that interfere with human health. The source of mosquito nutrition used as energy can come from human blood. The research was conducted at Ujung Bandar Village, Salapian District, Langkat ... -
The Neuromodulatory Potential of Nanoherbal Biwa (Eriobotrya Japonica Lindl.) in Rodent Model of Ischemic Stroke and Epilepsy
(Universitas Sumatera Utara, 2024)Biwa (Eriobotrya japonica Lindl.) dikenal secara umum dengan nama loquat merupakan tumbuhan yang berpotensi menjadi obat anti inflamasi, anti kejang, dan anti epilepsi. Biwa terbukti mengandung komponen antioksidan dan ... -
Kepadatan, Hubungan Panjang Berat dan Faktor Kondisi Ikan Sembilang (Plotosus Canius) di Perairan Pantai Bagan Kuala, Kabupaten Serdang Bedagai
(Universitas Sumatera Utara, 2023)Sembilang fish (Plotosus canius) is one of the fish that lives on Bagan Kuala Beach and is often consumed by the people around the beach. This study aimed to determine the density, the length weight relationship of the ... -
Isolation, Partial Purification and Characterization of Urease Enzyme from Red Rice Beans (Vigna Umbellata)
(Universitas Sumatera Utara, 2023)Urease (EC 3.5.1.5) adalah enzim yang menghidrolisis urea menjadi amonia dan karbon dioksida. Enzim urease memiliki banyak manfaat seperti pengolahan limbah industri, hemodialisis, diagnosis medis dan pengukuran kandungan ... -
Pemanfaatan Ekowisata Gajah Sumatra (Elephas Maximus Sumatranus) pada Masyarakat Karo di Tangkahan, Langkat, Sumatera Utara
(Universitas Sumatera Utara, 2023)Community participation is one of the success factors in community-based ecotourism. Tangkahan ecotourism destination has become a leading tourism destination because this destination presents the sumatran elephants as an ... -
Efek Ekstrak Metanol Nanoherbal Daun Rhodomyrtus Tomentosa (Aiton) Hassk. Terhadap Model Hewan Neuroinflamasi
(Universitas Sumatera Utara, 2024)This research was carried out by using Rhodomyrtus tomentosa (Aiton) Hassk. leaves or haramunting from Rantauprapat, North Sumatra, Indonesia which was processed into nanoherbal and then extracted with methanol (Meth-Ext) ... -
Kepadatan, Hubungan Panjang Berat dan Faktor Kondisi Ikan Kedukang (Hexanematichthys Sagor) di Perairan Pantai Bagan Kuala, Kabupaten Serdang Bedagai
(Universitas Sumatera Utara, 2023)The kedukang fish (Hexanematichthys sagor) is a type of catfish often found in coastal areas. The research on the density, the relationship between length and weight and the condition factors of Kedukang Fish (Hexanematichthys ... -
Jenis-Jenis Arecaceae (Palem-Paleman) di Kebun Raya Sipirok Kabupaten Tapanuli Selatan Sumatera Utara
(Universitas Sumatera Utara, 2023)The Sipirok Botanical Garden is a tropical forest area from the lowlands to the highlands which targets Arecaceae as one of the plants to be conserved, therefore it is necessary to research the quantity of Arecaceae ... -
Pengaruh Ekstrak Metanol Buah Andaliman (Zanthoxylum Acanthopodium) yang Berpotensi sebagai Antifertilitas Terhadap Organ Ginjal Mencit
(Universitas Sumatera Utara, 2023)Secondary metabolite compounds of the steroids, alkaloids, flavonoids, triterpenoids, tannins and saponins are compounds that act as an antifertility. Zanthoxylum acanthopodium contains flavonoids, alkaloids, pyranoquinoline ... -
Perilaku Agonistik Harimau Sumatra (Panthera Tigris Sumatrae) Jantan di Central Park Zoo and Resort, Pancur Batu, Kabupaten Deli Serdang, Sumatra Utara
(Universitas Sumatera Utara, 2023)Sumatran tiger (Panthera tigris-sumatrae) is one of rare species that categorized as endangered due to poaching and habitat destruction. Therefore, exsitu conservation efforts needed to maintain it’s sustainability, one ... -
Pengaruh Ekstrak Metanol Buah Andaliman (Zanthoxylum Acanthopodium Dc.) yang Berpotensi Sebagai Antifertilitas Terhadap Histologi Hati Mencit (Mus Musculus L.)
(Universitas Sumatera Utara, 2023)Andaliman fruit (Zanthoxylum acanthopodium) contains active secondary metabolite compounds like alkaloids, flavonoids, glycosides, saponins and steroids/triterpenoids. The plants contain compounds from the steroid, alkaloid ... -
Analisis Vegetasi Tumbuhan Bawah di Kebun Raya Sipirok Kabupaten Tapanuli Selatan Sumatera Utara
(Universitas Sumatera Utara, 2023)Sipirok Botanical Garden is a forest with a various types of understory plants, the diversity of understory plants at that area is not yet known. The purpose of this research was to analyze the composition of lower plants ... -
Jenis-Jenis Araceae di Kebun Raya Sipirok Kabupaten Tapanuli Selatan Sumatera Utara
(Universitas Sumatera Utara, 2023)Araceae is one of the flowering plants generally live in tropical areas which has relatively high humidity. One of them is the Sipirok Botanical Garden area This area has a humid and watery, also it has shady environmental ... -
Penambahan Ekstrak Daun Suji (Dracaena Angustifolia Roxb.) pada Pakan Buatan Terhadap Pertumbuhan dan Kelangsungan Hidup Benih Ikan Nila Merah (Oreochromis Sp.) SKRIPSI
(Universitas Sumatera Utara, 2023)Red tilapia (Oreochromis sp.) is a edible fish that many people still favorite. Red tilapia production is currently being developed to increase aquaculture production. Red tilapia has advantages such as rapid growth, ... -
Keanekaragaman Genetik Durian Lokal (Durio Zibethinus Murr.) di Sumatera Utara Berdasarkan Barcode Its (Internal Transcribed Spacer)
(Universitas Sumatera Utara, 2023)North Sumatera is one of the durian producers in Indonesia. Molecular scientific studies of local durian at North Sumatera were still limited. This research aims to determine molecular characteristics of local durian (Durio ... -
Hubungan Panjang Berat, Kepadatan dan Faktor Kondisi Ikan Belanak (Mugil Cephalus) di Perairan Pantai Bagan Kuala, Kabupaten Serdang Bedagai
(Universitas Sumatera Utara, 2023)Mullet fish (Mugil cephalus) is one of fishes often catches by the fisherman surrounding Bagan Kuala Beach and is consumed by the community because it is nutritious and it has economic value. This research aimed to determine ...