Department of Biology: Recent submissions
Now showing items 601-620 of 1255
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Pengendalian Biofilm Edwardsiella Tarda pada Permukaan Sisik Ikan dan Plastik PVC dengan Senyawa Antimikroba yang Dihasilkan oleh Bakteri Asam Laktat (BAL)
(Universitas Sumatera Utara, 2015)Edwardsiella tarda is a bacterium that causes edwardsielosis on fish and able to form biofilm on solid surface. The aim of this research was to control E. Tarda biofilm using antibacterial compound of lactid acid bacteria ... -
Karakteristik Perkembangan Anakan Kuntul Besar (Egretta alba) dan Kuntul Kecil (Egretta garzetta) di Kawasan Tambak Tanjung Rejo Sumatera Utara
(Universitas Sumatera Utara, 2015)Research about the characteristics of the development of nestling Great egret (Egretta alba) and Small egret (Egretta garzetta). This research was conducted in the Fishpond of Tanjung Rejo Region North Sumatra On Month ... -
Studi Kantung Semar (Nepenthes spp.) di Kawasan Hutan Batang Toru Blok Barat Kabupaten Tapanuli Utara Sumatera Utara
(Universitas Sumatera Utara, 2015)A study of kantung semar (Nepenthes spp.) in west area Batang Toru forest North Tapanuli, North Sumatra has been done in August-December 2014. The objective of this study is to observe, diversity, and distribution of ... -
Studi Tumbuhan Anggrek di Kawasan Hutan Batang Toru Blok Barat Kabupaten Tapanuli Utara Sumatera Utara
(Universitas Sumatera Utara, 2015)Study of Orchids in Batang Toru West Block Forest KabupatenTapanuli Utara, Provinsi Sumatera Utara had been done from August until December 2014. The study was aimed to observe species of orchids and their distribution. ... -
Isolasi dan Uji Kemampuan Bakteri Endofit Penghasil Hormon Iaa (Indole Acetic Acid) dari Akar Tanaman Jagung (Zea Mays L.)
(Universitas Sumatera Utara, 2009)Research on Isolation and Ability Test Of Endophytic Bacteria Producing IAA (Indole Acetic Acid) Hormone From Crops Maize Root (Zea mays L.) has been carried out from September 2008 to September 2009 at the Laboratory ... -
Studi Tentang Nilai Produktivitas Primer di Pangururan Perairan Danau Toba
(Universitas Sumatera Utara, 2009)The research about “ The Study of Primary Productivity in Lake Toba, Pangururan” was done in February 2009. The aim of this research was to investigate the value of primary productivity in lake toba, Pangururan and it’s ... -
Viabilitas dan Kemampuan Bakteri Kitinolitik Bacillus Sp. Bk17 dalam Formulasi Tablet untuk Mengurangi Layu Fusarium pada Benih Cabai Merah (Capsicum annuum L.)
(Universitas Sumatera Utara, 2015)Chitinolytic bacteria Bacillus sp. BK17 has been known to inhibit the growth of Fusarium oxysporum on chili seeds. Bacterial cell viability is an important factor in using the cell for biological control. This study ... -
Pemanfaatan Jamur Isolat Lokal untuk Menurunkan Kadar Bod, Cod pada Limbah Cair Pabrik Kertas
(Universitas Sumatera Utara, 2008)The use of local fungi to reduce BOD, COD in pulp mill effluent was studied in Microbiology Laboratory Department of Biology and Bio-Chemistry Laboratory Department of Chemistry Faculty of Matematic and Natural Sciences, ... -
Karakterisasi Mikrokapsul Sinbiotik Bakteri Asam Laktat Isolat UM1 yang Dienkapsulasi dengan Alginat, Tepung Kacang Arab dan Inulin
(Universitas Sumatera Utara, 2016)The addition of probiotics in various food products have been known to provide beneficial health for consumers. In the application of probiotics, its cell viability is often decreased as influenced by the environmental ... -
Studi Keanekaragaman Makrozoobenthos di Aliran Sungai Belawan Kecamatan Pancur Batu dan Kecamatan Sunggal Kabupaten Deli Serdang
(Universitas Sumatera Utara, 2009)Research about the Diversity Of Macrozoobenthic in Belawan river flow Pancur Batu Subdistrict and Sunggal Subdistrict Deli Serdang Regency have been done in May 2009 and from this research we want to know Sampel were ... -
Perbandingan Prevalensi Parasit pada Insang dan Usus Ikan Mujair (Oreochromis mossambicus) di Rawa dan Tambak Paluh Merbau Percut Sei Tuan
(Universitas Sumatera Utara, 2015)This research aims to determine the types of parasites which found in Mujair’s gills and mujair’s intestines are obtain at swamps and ponds of Paluh Merbau Percut Sei Tuan and to determine the prevalence of these parasites. ... -
Studi Keanekaragaman Makrozoobentos di Aliran Sungai Padang Kota Tebing Tinggi
(Universitas Sumatera Utara, 2009)The research have been done in April 12-14th 2008 and from this research we want to know about the Diversity Of Macrozoobenthic in lau Kawar Lakes. Sampel were collected from four stations by Purposive Random Sampling ... -
Identifikasi dan Prevalensi Ektoparasit pada Ikan Nila (Oreochromis niloticus) di Rawa dan Tambak Paluh Merbau Percut Sei Tuan Sumatera Utara
(Universitas Sumatera Utara, 2015)Research on Identification and prevalence of ectoparasites on nila’s (Oreochromis niloticus) in the swamp and pond Paluh Merbau Percut Sei Tuan North Sumatra conducted in Balai Karantina Ikan I Medan I on July to September ... -
Studi Keanekaragaman Echinodermata di Kawasan Perairan Pulau Rubiah Nanggroe Aceh Darussalam
(Universitas Sumatera Utara, 2009)The research with the title “Study of Echinodermata Diversity At The Oceanik Of Rubiah Island Nanggroe Aceh Darussalam” have been done at May 2009. This research is done with the method of Purpossive Random Sampling that ... -
Identifikasi dan Prevalensi Parasit pada Insang dan Saluran Pencernaan Ikan Gurami (Osphronemus gouramy) di Desa Lantasan Lama Kecamatan Patumbak Sumatera Utara
(Universitas Sumatera Utara, 2015)Each fish farming activity has obstacles that can cause a reduction in production. The main causes of failure in farming fish’s production are disease and parasites in fish. The research based on identification and ... -
Pembuatan Pakan Ikan dari Protein Sel Tunggal Bakteri Fotosintetik Anoksigenik dengan Memanfaatkan Limbah Cair Tepung Tapioka yang diuji Pada Ikan Nila (Oreochromis Niloticus)
(Universitas Sumatera Utara, 2009)Research on "Making Animal Feed Fish from the single cell protein of photosynthetic bacteria Utilizing Waste Anoksigenik With Tapioca Flour That Tested In Nila Fish (Oreochromis niloticus)" has been conducted in the ... -
Uji Kemampuan Bakteri Kitinolitik dari Nepenthes Tobaica dan Nepenthes Gracilis dalam Menghambat Pertumbuhan Beberapa Jamur Patogen Tanaman
(Universitas Sumatera Utara, 2015)The ability of chitinolytic bacteria isolated from Nepenthes tobaica and Nepenthes gracilis to inhibit the growth of plant pathogen fungi has been studied through antagonistic and crude extract tests. Five chitinolytic ... -
Persen Tutupan (Percent Cover) Terumbu Karang Hidup di Perairan Bagian Barat Pulau Rubiah Nanggroe Aceh Darussalam
(Universitas Sumatera Utara, 2009)The research of “Percent Cover of Life Coral Reef in the West of Rubiah Island, Nanggroe Aceh Darussalam” was investigated on May 2009. The aimed of this research were to investigated the value of percent cover of life ... -
Pengaruh Vitamin E terhadap Pemulihan Spermatozoa Mencit (Mus musculus L.) yang Mendapat Ekstrak Air Biji Pepaya (Carica papaya L.) dan Testosteron Undekanoat (TU)
(Universitas Sumatera Utara, 2012)The combination of water extracted of papaya seed and Testosterone Undecanoate (TU) may induce reducing quantity and quality of spermatozoa. The compound in extracted of papaya seed may generate oxidative stress as its ... -
Deteksi Protein C-myc pada Jaringan Kelenjar Susu Mencit (Mus musculus L.) dengan Metode Imunohistokimia
(Universitas Sumatera Utara, 2016)C-myc protein is a protein that encoded by the c-myc gene that serves as transcription and replication factor of the cells in the cell cycle. This study aims to detect the c-myc protein expression in mammary gland and ...