Department of Biology: Recent submissions
Now showing items 461-480 of 1255
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Struktur dan Produktivitas Rerumputan di Kawasan Danau Toba Desa Togu Domu Nauli Kecamatan Dolok Pardamean Kabupaten Simalungun Sumatera Utara
(Universitas Sumatera Utara, 2013)The Structure and Productivity of Grasses in Toba Lake Area Togu Domu Nauli Village, Dolok Pardamean Subdistrict, Simalungun Regency, North Sumatra has been studied from March to June 2012. The study site is determined ... -
Pengaruh Pemberian Vitamin C dan E terhadap Gambaran Histologis Ginjal Mencit (Mus musculus L.) yang Dipajankan Monosodium Glutamat (MSG)
(Universitas Sumatera Utara, 2013)The aim of this research is to study the effect of vitamin C and E on kidney microstructure of mouse exposed to monosodium glutamate for 30 days. This research used complete randomized design which consisted of 6 ... -
Gambaran Histologis Pulmo Mencit Jantan (Mus musculus L.) setelah Dipapari Asap Rokok Elektrik
(Universitas Sumatera Utara, 2013)The effects of electric cigarette exposure on lung tissue of mice were studied. The experiments using completely randimized design (CRD) with 3 treatments, i.e. treatment of electric cigarette with strawberry flavour, ... -
Pengaruh Penambahan Atonik dan BAP (Benzil Amino Purin) pada Media ½ MS terhadap Kultur Primordial Daun Andaliman (Zanthoxylum acanthopodium Dc.)
(Universitas Sumatera Utara, 2012)The research of ”The Effect Atonic and BAP (benzil amino purin) Combination in ½ MS Media on The Growth of The Leaf Primordial Tissue Culture of Andaliman (Zanthoxylum acanthopodium DC.)” has been done in Plant Tissue ... -
Pengaruh Ketersediaan Air terhadap Pertumbuhan Tiga Varietas Cabai Rawit (Capsicum frutescens)
(Universitas Sumatera Utara, 2013)Research on "Effect of Water Availability on Growth of Three Varieties of Chili Pepper (Capsicum frutescens)" has been done at Plant Physiology Laboratory Faculty of Science USU Medan. The objective of this research ... -
Kultur Embrio Jeruk Keprok (Citrus nobilis Lour) pada Media MS dengan Perlakuan BAP
(Universitas Sumatera Utara, 2011)Embryo culture of keprok orange (Citrus nobilis Lour.) on MS medium with BAP treatments, has been done in Plant Tissue Culture Laboratory of Biology Department at FMIPA USU from October until December 2010. The objective ... -
Komposisi Komunitas Cacing Tanah pada Areal Kebun Kelapa Sawit PTPN III Sei Mangkei yang Diberi Pupuk Limbah Cair Pabrik Kelapa Sawit di Kabupaten Simalungun Sumatera Utara
(Universitas Sumatera Utara, 2011)Research on the Composition of Earthworm Communities in Palm Plantation Area PTPN III Sei Mangkei The Fed Fertilizer Palm Oil Mill Waste in County Simalungun conducted in September to October 2010. Method of determining ... -
Kultur Kotiledon Jeruk Keprok (Citrus nobilis Lour.) pada Media MS yang Diperkaya dengan Kinetin
(Universitas Sumatera Utara, 2011)The research on “Cotyledon Culture of Keprok Orange (Citrus nobilis Lour.) on MS media modified with Kinetin” has been studied at the Tissue Culture Laboratory. The aim of the research was to obtain the best concentration ... -
Perilaku Harian Kuntul Besar ( Egretta alba ) di Kawasan Pantai Percut Sei Tuan Kabupaten Deli Serdang
(Universitas Sumatera Utara, 2007)The result from this research shows there were three daily behavior of Egretta alba which consist of individual behavior by 8 sub behavior (behavior of maintanance, body freshment, take a rest, sunning, drink, stretching, ... -
Kultur Embrio Jeruk Keprok (Citrus nobilis Lour) pada Media MS dengan Penambahan Kinetin
(Universitas Sumatera Utara, 2011)Research on "Embryo Culture Keprok Orange (Citrus nobilis Lour.) on MS media with the addition of Kinetin" performed at the Laboratory of Plant Tissue Culture Department of Biology, Faculty of Mathematics and Natural ... -
Kemampuan Bakteri Antagonistik dalam Menghambat Infeksi Saprolegnia Sp. pada Ikan Nila (Oreochromis Niloticus)
(Universitas Sumatera Utara, 2012)Fish diseases like saprolegniosis cause big economic loss in aquaculture especially tilapia. The study about ability of antagonistic bacteria to inhibit infection of Saprolegnia sp. in tilapia (Oreochromis niloticus) has ... -
Kemampuan Bakteri Kitinolitik dalam Menghambat Infeksi Aspergillus Sp. pada Ikan Nila (Oreochromis Niloticus)
(Universitas Sumatera Utara, 2012)A study on ability of chitinoltytic bacteria to inhibit the Aspergillus sp. causal agent of disease in Tilapia fish has been done in the Laboratory of Microbiology Karantina Ikan Kelas I Polonia, Medan and Laboratory of ... -
Pengaruh Pemberian Ekstrak N-Heksan Buah Andaliman (Zanthoxylum Acanthopodium Dc.) terhadap Perkembangan Struktur Kraniofacial Fetus Mencit (Mus Musculus L.) Strain Ddw
(Universitas Sumatera Utara, 2013)A research had been conducted with a title "Effect of N-hexane Extract Andaliman Fruit (Zanthoxylum acanthopodium DC.) on Development of Craniofacial Structures Mice (Mus musculus L.) Strains DDW" Structural Animals in ... -
Gambaran Histologis Hepar Mencit (Mus Musculus L.) Strain Ddw setelah Pemberian Ekstrak N-Heksan Buah Andaliman (Zanthoxylum Acanthopodium Dc.) Selama Masa Pra Implantasi dan Pasca Implantasi
(Universitas Sumatera Utara, 2013)The Histologic Description of Mice Liver (Mus musculus L.) Strain DDW Treated of N-Heksane Andaliman Fruit (Zanthoxylum acanthopodium DC.) Extract During Pre Implantation and Post Implantation has been studied from March ... -
Keanekaragaman Ikan di Pesisir Perairan Kuala Tanjung Kecamatan Medang Deras Kabupaten Batubara
(Universitas Sumatera Utara, 2011)Has done research with the title of Fish Diversity in Kuala Tanjung Coastal Waters Sub Running Medang Coal District. This research was conducted by Perposive Random Sampling method is 4 yag different research stations ... -
Pengaruh Salinitas terhadap Prevalensi Ektoparasit pada Ikan Kerapu Macan (Epinephelus Fuscoguttatus)
(Universitas Sumatera Utara, 2011)This study was conducted to know ectoparasites infecting tiger grouper, and the influence of salinity in ectoparasites prevalency in the tiger gouper. The study was conducted at Parasitology Laboratorium, Fish Quarantine, ... -
Hubungan Nilai Produktivitas Primer Fitoplankton dengan Kelimpahan Fitoplankton di Sungai Bah Bolon Kota Pematangsiantar dan Kabupaten Simalungun Sumatera Utara
(Universitas Sumatera Utara, 2014)An experiment has been conducted to determine the value of primary productivity in correlation with the phytoplankton abundance and chlorophyll a concentration. The value of primary productivity range from 112,90-376,35 ... -
Komposisi dan Keanekaragaman Herba pada Beberapa Tegakan Hutan Sekunder di Kawasan Ekosistem Leuser Desa Telagah Kabupaten Langkat Sumatera Utara
(Universitas Sumatera Utara, 2011)The Composition and Diversity of Herbaceous Plants in the series of secondary forests Leuser Ecosystem Telagah Village Langkat Regency North Sumatra had been studied from February to May 2011. For this study an area of ... -
Pengaruh Ekstrak-Metanol Daun Sirsak (Annona muricata Linn) terhadap Daya Tetas Telur, Mortalitas dan Perkembangan Larva Aedes aegypti Linn.
(Universitas Sumatera Utara, 2008)The experiments about effects of methanol-extract of soursop leaf (Annona muricata Linn.) on the egg hatching ability, mortality and development of Aedes aegypti larvae has be done in Animal Physiology Laboratory of ... -
Pengaruh Pemberian Beberapa Variasi Pupuk TSP pada Komposisi Media Kotoran Ayam dengan Pupuk Urea terhadap Laju Pertumbuhan Populasi Rotifera (Brochionus plicatilis)
(Universitas Sumatera Utara, 2007)A study of The Effect of TSP Fertilizers Variation with Mixing Medium of Chiken Manure and Urea Fertilizers with Growth Rate of Rotifera Brachionus plicatilis has been conducted from April until Mei 2007. The research ...