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EFEKTIFITAS KOMBINASI PENGHANGAT AIR TERKENDALI PADA SISTEM RESIRKULASI AIR UNTUK PEMBENIHAN IKAN Hermanto, Mochamad Bagus; Setiawan, Budi lndra; Rudiyanto, Rudiyanto
Jurnal Keteknikan Pertanian Vol 21, No 1 (2007): Jurnal Keteknikan Pertanian
Publisher : PERTETA

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ABSTRACT Efficacies in hatchery depend on the ability to control water temperature. The aim of this research is to reduce heat loss in hatchery room, so that the energy requirement for water warming will be more efficient. Two units of flat plate solar collectors were serially installed. On-off controller is used to control a fan which is used for air re-circulation in 6m x 4m x 3m closed room. Experiments were carried out to find effectiveness of solar collector as a controlled warmer unit by perceived both temperature and relative humidity parameters. Initial  experiment results indicate that solar collector as a warmer unit is able to  give mean room temperature with tow standard deviation. The statistical analysis results also indicate that the mean water temperature at the controlled air re-circulation system with circulating water is equal to 27. 6 0C with standard deviation equal to 0.7 0C. Additional 350 Watt of electric water warmer can increase the mean water temperature that is equal to 30.6 0C with standard deviation equal to 0.5 0C  which is an ideal environment for fish hatcher. It concludes that the combination of solar collector and electric water warmer as a controlled warmer unit is able to give  mean water temperature with low standard deviation, so that this system can effectively reduce the use of warming energy cost until 76.85 %. Diterima:  1 Ncpemoer 2006: Disetujui: 20 Nopember 2006
HUBUNGAN BERAT BADAN TINGGI BADAN DAN PANJANG TUNGKAI DENGAN KELINCAHAN Rudiyanto, Rudiyanto; Waluyo, Musyafari; Sugiharto, Sugiharto
Journal of Sport Sciences and Fitness Vol 1 No 2
Publisher : Journal of Sport Sciences and Fitness

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Pengaruh Salinitas Terhadap Perkembangan Larva (PL1-Pl7) Udang Windu (Penaeus monodon Fab) Lokal Di UPTD Balai Benih Sentra Air Payau dan Air Laut Manggar Kota Balikpapan Ardi S, Muhamad; Haryasakti, Anshar; Rudiyanto, Rudiyanto
Jurnal Pertanian Terpadu Jurnal Pertanian Terpadu Jilid II nomor 1 Juni 2014
Publisher : Sekolah Tinggi Pertanian Kutai Timur

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Penelitian ini dilakukan untuk mengetahui pengaruh salinitas terhadap perkembangan Post larva PL1 – PL7Udang Windu lokal (Penaeus monodon Fab) di UPTD SAPAL Manggar Balikpapan, Kalimantan Timur. Penelitian ini menggunakan metode Rancangan Acak Lengkap (RAL) dengan 5 perlakuan dan 3 ulangan, dengan uji lanjut BNT (Beda Nyata Terkecil) pada taraf 5 % dan 1 %, perlakuan salinitas yang diuji adalah 15 ‰, 20 ‰, 25 ‰, 30‰, dan 35 ‰. Hasil pengamatan menunjukkan bahwa media bersalinitas 30 ‰ memberikan hasil tertinggi dengan rata-rata presentase kelangsungan hidup sebesar 55,33 %, diikuti perlakuan 25 ‰ sebesar 36,89 %, menyusul perlakuan 35 ‰ yaitu 16,56 %, kemudian perlakuan 20 ‰ sebesar 15 % dan yang paling terendah terjadi pada perlakuan 15 ‰ yaitu sebesar 2,78 %. Keragaman larva yang diperoleh menunjukkan hasil yang berbeda sangat nyata.Dari hasil tersebut, berarti bahwa tinggi rendahnya salinitas memberikan pengaruh yang kuat terhadap perkembangan larva udang windu (Penaeus monodon Fab).
Analisis Bakteri Escherichia Coli Pada Ikan Kakap Putih (Latescal carifer) di Muara Kenyamukan Kabupaten Kutai Timur Heriyati, Eny; Rudiyanto, Rudiyanto; Sapitri, Cici
Jurnal Pertanian Terpadu Jurnal Pertanian Terpadu Jilid IV nomor 1 Juni 2016
Publisher : Sekolah Tinggi Pertanian Kutai Timur

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Penelitian ini bertujuan untuk mengetahui tingkat kontaminasi bakteri E. colisebagai indikator pencemaran pada ikan kakap putih (lates calcarifer) di perairan Muara Kenyamukan Kabupaten Kutai Timur. Penelitian ini dilaksanakan pada bulan Juli 2015 di perairan Muara Kenyamukan Kabupaten Kutai Timur. Pengambilan sampel ikan kakap putih yang berasal dari Muara Kenyamukan dengan mengambil  3 stasiun pengamatan yaitu stasiun I terletak di perairan yang berdekatan dengan pemukiman penduduk, stasiun II terletak pada perairan muara sungai, dan stasiun III terletak pada perairan laut terbuka. Sampel ikan kakap putih dianalisis dengan mengunakan metode MPN (Most Probable Number) seri 3 tabung di Laboratorium Mikrobiologi Perairan Jurusan Budidaya Perairan Fakultas Perikanan dan Ilmu Kelautan Universitas Mulawarman. Hasil analisis sampel pada insang, daging, saluran pencernaan ikan kakap putih menunjukan bahwa pada wilayah perairan muara sungai kenyamukan jumlah kandungan bakteri E. colipada insang 56 MPN/g, daging 21 MPN/g dan pencernaan 7 MPN/g. Wilayah laut lepas jumlah bakteri E. coli pada air 2.400 MPN/100 mL, muara Kenyamukan 150 MPN/100 mL, dan di bawah Pemukiman Penduduk  jumlah kandungan bakteri E. coli 40 MPN/100 mL.  Hasil inokulasi menunjukan bahwa bakteri yang tumbuh pada saat isolasi merupakan bakteri E. coli. Nilai total bakteri E. colidi setiap titik  pengamatan berada diatas baku mutu keamanan pangan yang dipersyaratkan oleh 7388 : 2009 dan BPOM (Badan Pengawas Obat dan Makanan) tentang batas cemaran maksimum dalam pangan sebesar 10 MPN/g pada daging segar.
Struktur Komunitas Gastropoda pada Substrat Mangrovedi Desa Sangkima Kecamatan Sangatta Selatan Rudiyanto, Rudiyanto
Jurnal Pertanian Terpadu Jurnal Pertanian Terpadu Jilid IV nomor 1 Juni 2016
Publisher : Sekolah Tinggi Pertanian Kutai Timur

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Penentuan stasiun penelitian menggunakan metode purposive sampling dan untuk mengetahui hubungan antar variabel data yang diperoleh dianalisis regresi dengan perangkat lunak SPSS serta analisis deskriptif yang disajikan dalam bentuk tabel dan grafik. Penelitian ini menemukan 25 spesies Gastropoda. Pola penyebaran Gastropoda pada umumnya mengelompok dan acak. Jenis substrat memiliki nilai korelasi yang negatif dengan kepadatan gastropoda yaitu (y) = 0.790– 0,003X1– 0,003X3
APLIKASI MODEL ARTIFICIAL NEURAL NETWORK SEBAGAI EXTENSION ARC VIEW-GIS UNTUK PENILAIAN KESESUAIAN LAHAN PERKEBUNAN KAKAO DI DIY. Hermantoro, Hermantoro; Suprayogi, Slamet; Rudiyanto, Rudiyanto
Majalah Geografi Indonesia Vol 22, No 1 (2008): Maret 2008
Publisher : Fakultas Geografi, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (177.069 KB) | DOI: 10.22146/mgi.15457

Abstract

Evaluasi kesesuaian lahan untuk tujuan tertentu di sektor perkebunan menjadi sangat penting karena meningkatnya persaingan dalam penggunaan lahan dan pengembangan sektor perkebunan . Evaluasi lahan menghasilkan informasi tentang nilai ekonomi dari penggunaan lahan tertentu . Tujuan dari penelitian ini adalah untuk mengembangkan metode Evaluasi Kesesuaian Lahan kakao estate dengan menggunakan model terintegrasi Artificial Neural Network (ANN) dan Sistem Informasi Geografis (GIS). Propagasi Kembali Model ANN yang digunakan untuk memprediksi dasar hasil kakao pada kualitas lahan parameter . Hasilnya menunjukkan bahwa model yang terbaik ANN untuk memprediksi hasil kakao memiliki 15 lapisan input, 15 lapisan tersembunyi , dan 1 output layer . dengan koefisien determinasi ( r2 ) dari 0,99 dan Kesalahan Root Mean Square ( RMSE ) dari 93,83 dalam proses pelatihan , jika dalam pengujian menemukan r2 sebesar 0,76 dan RMSE dari 113,83 . Dalam tahap verifikasi model terintegrasi dari ANN dan GIS digunakan untuk mengevaluasi kesesuaian lahan Jogjakarta Daerah Istimewa untuk pengembangan real kakao . Hasilnya melihat bahwa Jogjakarta Daerah Istimewa memiliki lahan sesuai marginal ( S2 ) kakao dari 38,911.102 Ha , Cocok ( S2 ) dari 110.367.050 Ha , dan sangat cocok ( S3 ) dari 20,577.179Ha.
EKLAMPSIA POSTPARTUM: SEBUAH TINJAUAN KASUS Andalas, Mohd; Ramadana, Andry Khairani; Rudiyanto, Rudiyanto
Jurnal Kedokteran Syiah Kuala Vol 17, No 1 (2017): Volume 17 Nomor 1 April 2017
Publisher : Universitas Syiah Kuala

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Abstract

Abstrak. Eklampsia adalah kejang pada kehamilan dengan gejala preeklampsia. Preeklampsia merupakan suatu kumpulan gejala pada ibu hamil ditandai dengan peningkatan tekanan darah sistolik ≥ 140/90 mmHg dan proteinuria pada usia kehamilan ≥ 20 minggu. Eklampsia dibedakan menjadi eklampsia gravidarum, eklampsia intrapartum, dan eklampsia pospartum. Kejadian eklampsia sekitar 2-8% diseluruh dunia dan merupakan penyebab kematian 500.000 ibu melahirkan setiap tahunnya. Angka kejadian eklampsia di Indonesia mencapai128.273 kasus setiap tahun. Di RSUZA pada tahun 2012 terdapat 142 kasus, dari profil kesehatan kota Banda Aceh tahun 2012 eklampsia dan preeklampsia merupakan penyebab 20% kematian ibu hamil setiap tahunnya. Berikut dibahas kasus seorang wanita Indonesia 37 tahun dengan usia kehamilan 39-40 minggu, pasien dengan pre eklampsia berat, inpartu, pembukaan lengkap 10cm, dan ditatalaksana dengan protap preeclampsia berat menggunakan MgSO4 4 gram bolus lambat dilanjutkan 6 gram MgSO4 40% dalam 500 ml cairan RL, dilakukan pimpinan persalinan dan bayi lahir normal. Pascapersalinan kala tiga pasien mengalami kejang selama 15 detik. Kasus membahas mengapa eklampsia dapat terjadi setelah tatalaksana MgSO4, hal ini dihubungkan dengan rendahnya kadar ion Mg2+ yang terionisasi di dalam darah tidak mampu memberikan efek ini bisa pada potensial post junctional dan menyebabkan peningkatan eksitabilitas dari serabut otot dan berefek terhadap kejang.  Kata kunci: preeklampsia, eklampsia, postpartumAbstract. Eclampsia is a condition of the seizure caused by preeclampsia. Preeclampsia itself is a condition when the blood pressure of pregnancy increase up to ≥140/90 mmHg with proteinuria and the gestational age ≥ 20 weeks.Eclampsia divided into eclampsia gravidarum, eclampsia intrapartum and eclampsia postpartum.Incidents of eclampsia is about 2-8% in the world, and its couse  500.000mortality every year. Amount of Eclampsia in Indonesia reached 128.273cases every years. At RSUZA in 2012 there was 142 cases, based on Banda Aceh Health Ministry Profile 2012 known that they are 20% etiology which can make pregnant woman dead every year.This Article discuss about an Indonesian pregnant woman, 37 years old with 39-40 weeks of gestational age,she has severe preeclampsia wihinpartu condition, complete opening 10cm, and treated by severe preeclampsia treatment guide. Its treated using MgSO4 4 gram bolus gradually and after that giving 6 gram MgSO4 40% in 500 ml RL. Then,delivering babies with normal condition. After third stage of laborn, she was seized for about 15 seconds. This case discuss about why eclampsia happen after given MgS04, this associated with lowof  Mg2+level in the body which ionized in theblood that can’t giving inhibition effect in the postjunctional potential and cause increase of eksitability from miofibronal and seizure.  Keyword: preeclampsia, eclampsia, postpartum
Somatic Embryo Germination of Jatropha curcas L in Presence of Sucrose and Poly Ethylene Glycol (PEG) Rudiyanto, Rudiyanto; Efendi, Darda; Ermayanti, Tri Muji
ANNALES BOGORIENSES Vol 18, No 1 (2014): Annales Bogorienses
Publisher : Research Center for Biotechnology - Indonesian Institute of Sciences (LIPI)

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Abstract

Jatropha curcas L. is a potential source of a non-edible biofuel. Conventional propagation of J. curcas technique has some limitations. Somatic embryo can produce a large number of embryos and obtain a large number of plants all year round. Treatment of sucrose in combination with polyethylene glycol (PEG) was proven to enhance germination of somatic embryos in many plant species. The aim of the study was to investigate the effect of sucrose in combination of PEG on somatic embryo germination in J. curcas. Globular somatic embryos at 0.025-0.030 g fresh weight having 0.4-0.5 cm in diameter were grown on MS medium solidified with 3 g/l of Gelzan supplemented with sucrose at 20, 30, 40, and 50 g/l in combination with PEG at 0, 2.5, 5, 10, and 15%. Results showed that the best medium for germination of J. curcas somatic embryo cultures was MS medium supplemented with 20 and 30 g/l of sucrose in combination with 5% of PEG. The numbers of germinated embryos per clump had significant enhancement on those medium compared with the control (PEG free treatment) (2.65 to 5.65) and (2.55 to 5.50). In addition, those treatments resulted in the highest percentage of clumps forming germinated embryos (100%), with an average of normal germinated embryos at 94.163 and 96.065%. The addition of 40 and 50 g/l of sucrose in combination with 15% of PEG caused all embryos to fail at germinating.
Comparison of the Reduction Effect of Sucrose and Table Sugar Concentration on Growth Characteristics of Red Ginger (Zingiber officinale Rocs.) Cultured in Liquid Medium Hapsari, Betalini Widhi; Ermayanti, Tri Muji; Rantau, Deritha E.; Rudiyanto, Rudiyanto
ANNALES BOGORIENSES Vol 15, No 1 (2011): Annales Bogorienses
Publisher : Research Center for Biotechnology - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (449.024 KB) | DOI: 10.1234/34

Abstract

The aim of this research was to compare the reduction effect of sucrose or table sugar concentration on growth characteristics of red ginger cultured in MS liquid medium. Shoots of red ginger was cultured on MS liquid medium without addition of plant growth regulators, supplemented with 5, 10, and 20 g/l of sucrose or table sugar for 8 weeks. Resulted plantlets were acclimatized in a greenhouse to investigate their growth and survival rate. Numbers of stomata, chlorophyll concentration as well as cross section of leaves from plantlets grown in vitro were compared to those of transplants grown in the greenhouse. The results showed that the use of table sugar at concentration of 20 g/l gave the best growth of red ginger. Meanwhile, the reduction of table sugar from 20 to 10 g/l reduced growth and survival rate of in vitro shoots as well as that of transplants in the greenhouse. Only few shoots formed roots when they were grown on the medium containing 5 g/l of table sugar, and transplants failed to grow in the greenhouse. It found that the chlorophyll content of in vitro plantlets was lower than those of transplants grown in the glasshouse. However, the number of stomata of the in vitro plantlets was higher than that of transplants grown in the glasshouse. There was no anatomical abnormalities found on the cross section of leaves between in vitro plantlets and transplants grown in the greenhouse. The replacement of sucrose with table sugar may reduce the production cost of plantlets.Keywords: red ginger (Zingiber officinale Rocs.), reduction of sugar, survival rate, chlorophyll, stomata.
Pengaruh Modifikasi KH2PO4, NH4NO3 dan Sukrosa terhadap Pertumbuhan Tunas serta Pembentukan Umbi Mikro Taka (Tacca leontopetaloides) secara In vitro Rudiyanto, Rudiyanto; Hapsari, Betalini Widhi; Ermayanti, Tri Muji
JURNAL BIOLOGI INDONESIA Vol 14, No 1 (2018): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1333.983 KB) | DOI: 10.14203/jbi.v14i1.3658

Abstract

ABSTRACTPolynesian arrowroot (Tacca leontopetaloides (L.) Kuntze), which is one of the bulbous herbaceous plants,have high nutritional value. Modification of macro nutrients by reducing nitrogen content and increasingphosphorus on the medium gave affects on shoot growth and initiated micro tuber formation on in vitrocultures. The aim of this research was to determine the effect of modified macro nutrients in combination withthe increase in sucrose concentrations on shoot growth and micro tuber formation of T. leontopetaloides. Theexperimental design was factorial completely randomized design.The factors tested were modifications of MSmacro nutrients that were. M1 (170 mg/l KH2PO4 and 1650 mg/l NH4NO3; normal, control treatment); M2 (340mg/l KH2PO4 and 825 mg/l NH4NO3); and M3 (680 mg/l KH2PO4 and 412.5 mg/l NH4NO3 in combinationwith 30 (S1) (control treatment), 40 (S2), 50 (S3) and 60 g/l of sucrose (S4). The variables tested were shootheight, number of leaves, number of roots and number of micro tuber which were observed weekly at 0-8weeks after culturing. The results showed that the modification of macro nutrient in combination with sucroseconcentration had significant effect on shoot height, number of leaves and number of roots but not significanton the number of tubers. The highest shoots were found in M1S3 treatment, the highest number of leaves wasin M1S1 and M1S3 treatment and the highest number of roots was in M1S4 treatment. The number of tubersnot significantly different between the treatments tested.Keywords: in vitro, KH2PO4, microtuber, NH4NO3, sucrose, Tacca leontopetaloides