Department of Biology: Recent submissions
Now showing items 381-400 of 1294
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Penapisan Bakteri Laut Penghasil Antimikroba dari Pesisir Serdang Bedagai
(Universitas Sumatera Utara, 2011)Screening of marine bacteria producing antimicrobial was done. Thirty-six potential isolates shown antimicrobial activity inhibition zone around colony. Antagonistic assay showed that three isolates SB5, B03 and B04 ... -
Akumulasi Timbal (Pb) dan Keanekaragaman Jenis Lichenes di Taman Kota Medan
(Universitas Sumatera Utara, 2010)Accumulation of lead (Pb) on Lichenes thalus influenced by differences in the count of motor vehicles and physical factors inherent in the garden city of Medan. The aim of the study is to examine factors affecting the ... -
Keanekaragaman Nepenthes di Hutan Wisata Alam Taman Eden Seratus Desa Lumbun Rang Kecamatan Lumban Julu Kabupaten Toba Samosir
(Universitas Sumatera Utara, 2009)This research aims to know types of Nepenthes the in area of Gardens forests Eden Kabupaten Toba Samosir. This research has been executed in December 2008 until Februari 2009. Research location determined by using Method ... -
Kenekaragaman Tumbuhan Berkhasiat Obat di Hutan Taman Wisata Alam Deleng Lancuk Kabupaten Karo Sumatera Utara
(Universitas Sumatera Utara, 2008)Diversity of Panacea Plants of National Park Forest of Deleng Lancuk of Karo Regency, North Sumatra under consultation of both Prof. Dr. Retno Widhiastuti, MS. as the coordinator and Prof. Dr. Ing. Temala Alexander ... -
Pengaruh Ekstrak Metanol Biji Pare (Momordica charantia L.) dan Depo Medroksi Progesteron Asetat (DMPA) terhadap Histologi Hepar Tikus (Rattus norvegicus L.) Jantan Strain Wistar
(Universitas Sumatera Utara, 2017)The aim of this research is to know the effect of combination of Depo Medroxy Progesterone Acetate (DMPA) and methanol extract seeds of bitter melon (Momordica charantia L.) to hepatic histology, hepatic weight, hepatic ... -
Jenis – Jenis Lumut Hati Berdaun di Hutan Lindung Simancik I (TAHURA Bukit Barisan) Kabupaten Deli Serdang Sumatera Utara
(Universitas Sumatera Utara, 2017)Data and information of leafy liverworts’ diversity in Sumatera, especially North Sumatera, their study are still less reported and conducted. Research attempted to collect leafy liverworts from Protected Forest of ... -
Keanekaragaman Jenis Ikan di Aliran Sungai Bah Bolon, Kabupaten Simalungun
(Universitas Sumatera Utara, 2017)The diversity of fish in the river flow Bah Bolon, district of Simalungun has been observed in July 2016. The purpose of this study was to analyze the diversity of fish and its relationship to physical and chemistry ... -
Laju Pertumbuhan dan Kelangsungan Hidup Ikan Oreocrhomis niloticus dengan Pemberian Tepung Kayu Manis (Cinnamomum burmannii)
(Universitas Sumatera Utara, 2017)The growth rate of parrot fish had influenced by fish’s immunity system. Cinnamon have secondary metabolic and can become imunostimulan to increase the rate growth and survival rate of parrot fish. The study have been ... -
Komposisi dan Struktur Sapling di Kawasan Deleng Macik Taman Hutan Raya Bukit Barisan Kabupaten Karo Sumatera Utara
(Universitas Sumatera Utara, 2017)Research entitled Composition and Structure of Sapling at Deleng Macik Region Taman Hutan Raya Bukit Barisan District of Karo North Sumatera has been conducted from May to November 2016. The research sites were determined ... -
Perilaku Harian Anakan Kuntul Kerbau (Bubulcus ibis L.) di Kawasan Hutan Mangrove Desa Tanjung Rejo, Kecamatan Percut Sei Tuan, Kabupaten Deli Serdang, Sumatera Utara
(Universitas Sumatera Utara, 2017)“Daily Behavior Of Cattle Egret (Bubulcus ibis L.) In Mangrove, Tanjung Rejo, Percut Sei Tuan, Deli Serdang, North Sumatera” has been done is in March 2016 until June 2016. This research is backgrounded by the survival ... -
Perilaku Makan Orangutan Sumatera (Pongo abelii Lesson, 1827) di Stasiun Penelitian Hutan Batang Toru Bagian Barat Tapanuli Utara
(Universitas Sumatera Utara, 2013)The study of "Feeding Behaviour Sumatran Orangutan (Pongo abelii Lesson, 1827) at Batang Toru Forest Research Station West Block-North Tapanuli" was conducted from February to April 2013. Observation of feeding behaviour ... -
Studi Keanekaragaman Ikan di Hilir Sungai Asahan Tanjung Balai Sumatera Utara
(Universitas Sumatera Utara, 2015)The Study of Fish Diversity in downstream Asahan river Tanjung Balai North Sumatera was studied in July 2014. The purpose of this research is to know the diversity of fish, physical-chemical factors of water, and the ... -
Potensi Bakteri Penghasil Biosurfaktan dari Air Laut Belawan Sumatera Utara dalam Mendegradasi Herbisida Berbahan Aktif Glifosat pada Tanah
(Universitas Sumatera Utara, 2015)The research on potential of biosurfactant producing bacteria from Belawan Sea, Sumatera Utara in degrading gliphosate based herbicide in soil has been conducted. Ten biosurfactant producing isolates that have been ... -
Pengaruh Ekstrak Kulit Manggis (Garcinia mangostana L.) terhadap Gambaran Histopatologis Lambung Tikus (Rattus norvegicus L.) Jantan Galur Wistar yang Dipapari Kebisingan
(Universitas Sumatera Utara, 2015)Noise is one of stressor that can lead to many health problems among other disorders of the immune system, hormone system, digestive system, increase blood pressure, etc. Mangosteen peel extract contains compound such ... -
Karakteristik Sarang Orangutan Sumatera (Pongo abelii) di Kawasan Hutan Sekunder Resort Sei Betung Taman Nasional Gunung Leuser
(Universitas Sumatera Utara, 2015)Sumatran orangutans are critically endangered species and one of their most viable habitat is Gunung Leuser National Park (GLNP) in northern Sumatra. Within the GLNP, secondary forest in Sei Betung resort is also ... -
Isolasi dan Uji Ekstrak Bakteri Asam Laktat Perairan Tawar dalam Mengendalikan Biofilm Aeromonas salmonicida pada Berbagai Permukaan Padat
(Universitas Sumatera Utara, 2015)Aeromonassalmonicida is a bacterium that causefurunculosis on fish and is able to form biofilm on solid surface. The aim of this research is to control biofilm Aeromonassalmonicida using antimicrobial compound of Lactid ... -
Pengaruh Pemberian Telur Itik dan Tepung Jagung (Maizena) terhadap Laju Pertumbuhan Populasi Daphnia sp.
(Universitas Sumatera Utara, 2015)Research on the effect of duck eggs and corn flour (cornstarch) on the rate of population growth of Daphnia sp. was conducted from April until May 2015 using completely randomized design method. Daphnia sp. was cultured ... -
Viabilitas dan Keriap Bacillus sp. BK17 dan Enterobacter sp. BK15 pada Sumber Karbon dan Nitrogen yang Berbeda
(Universitas Sumatera Utara, 2012)To propagate bacterial cell for biocontrol purpose, suitable nutrient have to be determined in which carbon and nitrogen source was often as limited factor of bacterial growth. Proper storage of biocontrol agent such ... -
Isolasi dan Potensi Bakteri Keratinolitik dari Feses Ular Sanca (Python sp.) dalam Mendegradasi Limbah Keratin
(Universitas Sumatera Utara, 2015)Snake like Python sp. can eat bird including its whole feather and excrete feces with no feather left. It has been assumed that there are keratinolytic bacteria in the intestine of snake. In this study an isolation and ... -
Jenis dan Tingkat Serangan Parasit Gastrointestinal Kuda (Equus coballus) di Peternakan Kuda Desa Sempajaya Berastagi, Provinsi Sumatera Utara
(Universitas Sumatera Utara, 2016)Research about type and level of gastrointestinal parasites attacks in horse (Equus coballus) in horse farm of Sempajaya Berastagi village, North Sumatra is explained using sedimentation method with the glass beads. A ...