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ANALISIS PERBANDINGAN FLUKTUASI PERUBAHAN VOLUME WADUK PENJALIN DENGAN METODE PEMERUMAN DAN PENGUKURAN ELEVASI MUKA AIR Purwati, Endang; Suprayogi, Andri; ., Hani'ah
Jurnal Geodesi Undip Volume 1, Nomor 1, Tahun 2012
Publisher : Jurusan Teknik Geodesi

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Abstract

Waduk Penjalin terletak di wilayah Kabupaten Brebes, Provinsi Jawa Tengah, dibangun sekitar tahun 1930 ?  1934. Waduk  Penjalin hanya dipergunakan untuk memenuhi kebutuhan air irigasi seluas 29.000 Ha. Sumber airnya selain dari Kali Pemali juga berasal dari air hujan yang jatuh di Daerah Aliran Sungai (DAS) Waduk Penjalin dan yang jatuh langsung ke waduk. Curah hujan tahunan rata-rata di daerah ini berkisar antara 2.750 mm. Pemeliharaan Waduk Penjalin belum dilaksanakan secara serius oleh pengelola. Sejak dibangun tahun 1934 hingga sekarang, baru dilakukan dua kali pemeruman untuk mengontrol perubahan Waduk Penjalin, sehingga perubahan secara perodik tidak bisa dideteksi. Dengan kata lain, apabila terjadi perubahan tidak bisa dilakukan tindak lanjut secara berkala. Volume efektif waduk pada awal mula beroperasi sebesar 9,5 juta. Setelah beroperasi selama 76 tahun diperkirakan volume Waduk Penjalin kurang dari 50%, terbukti dari volumenya sudah tidak dapat lagi mengairi irigasi seluas 29.000Ha. Kata kunci : Waduk, Volume, Daerah Aliran Sungai
AN ESTIMATE OF MEAT PRODUCTION LOSS IN NATIVE CHICKEN IN BOGOR AND ITS SURROUNDING DISTRICTS DUE TO GASTEROINTESTINAL HELMINTHIASIS He, Simon; Susilowati, Vici E.H.S.; Purwati, Endang; Tiuria, Risa
Hemera Zoa Vol. 74 No. 3 (1991): Jurnal Hemera Zoa
Publisher : Hemera Zoa

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Abstract

Among 78 native chicken from Bogor and its surrounding districts, only  4 (5.1%) with mean dressing weights of 1250 ± 29 g were free from parasiric worms. The other 74 chicken found infected with nematodes [mean nematode numbers (mn) = 24]. Cestodes (mc = 45) and trematodes (mt = 7). Single parasite class infections of nematode (mn = 18) and of trematode (mt = 96) were each one sample (1.3% with mws 1250 and 1180 g, respectively); single parasite class infections of cestode (mc = 47) were 15 (19.2% wit mw = 1145 g). Total single parasite class infections were 17 (21.8%). Mixed nermatode (mn = 29) + castode (mc = 50) were 41 (52,6%; mw = 1056 g), nematode (mn = 4) + trematode (mt = 28) were 2 (2.6% mw = 1225 g) and cestode (mc = 44) + trematode (mt = 6 - were 2 (2,6%; ws = 975 g). Total two parasite class infections were 45 (57.7%). Mixed infections of nematode (mn - 45) + cestode (mc = 44) + trematode (mt = 27) were 12 (15,4%; mw = 1034 g).
The Effect of Pediococcus pentosaceus on Stool Frequency, TNF-α Level, Gut Microflora Balance in Diarrhea-induced Mice Yuliawati, Yuliawati; Jurnalis, Yusri Dianne; Purwati, Endang; Lubis, Gustina
The Indonesian Journal of Gastroenterology, Hepatology, and Digestive Endoscopy VOLUME 13, NUMBER 2, August 2012
Publisher : The Indonesian Journal of Gastroenterology, Hepatology, and Digestive Endoscopy

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Abstract

Background: Enteropathogenic Escherichia coli (EPEC) are pathogenic microorganisms causing inflammation and imbalanced gut microflora that may result in diarrhea. Pediococcus pentosaceus (P. pentosaceus) isolated from “dadih” (milk curd) are used as probiotics containing lactic acid bacteria (LAB), which are useful to improve the balance of intestinal microflora and inhibit the growth of pathogenic microorganisms. This study was aimed to recognize the effect of P. pentosaceus supplementation on stool frequency, tumor necrosis factor-α (TNF-α) and gut microflora balance in experimental mice with EPEC-induced diarrhea. Method: The study was conducted in 60 white mice (Mus muscullus) at Biomedical Laboratory, Biotechnology/Production and Animal Husbandry Technology Institute, University of Andalas, Padang in April 2012. The frequency of stool, TNF-α level and microflora balance of the mice were measured before and after the EPEC-induced diarrhea and following the administration of antibiotics. Statistical analysis was performed using ANOVA and Duncan test. Results: The highest mean stool frequency was found in positive control group, i.e. 55 times, which was reduced significantly after 12-hour P. pentosaceus supplementation in a dose of 2 x 108 cfu/g into 18 times. The mean TNF-α level in positive control group was 128.17 pg/mL that lowered significantly to 48.0 pg/mL. The highest mean total number of LAB was 97.0 x 107 cfu/g, which was significantly different from positive control group of 7 x 107 cfu/g. Conclusion: P. pentosaceus supplementation in a dose of 2 x 108 cfu/g may reduce the stool frequency, lower TNF-α and improve the gut microflora balance following 12-hour supplementation in diarrhea-induced mice. Keywords: Pediococcus pentosaceus, TNF-α, diarrhea, EPEC, gut microflora
Evaluasi Kinerja Daerah Irigasi Jragung Kabupaten Demak Putri, Eka Wulandari Srihadi; Harisuseno, Donny; Purwati, Endang
Jurnal Teknik Pengairan Vol 6, No 1 (2015)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

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Abstract

Jragung irrigation Area is located in Demak Regency has decreasedin its performance. The result of existing analysis showed that there is an imbalance of irrigation water within it. Based on its performance analysis taken from regulation of the ministry of public works No. 32/PRT/M/2007, Jragung Irrigation area has been classified as poor and requiremore attention with 66.95% working performance only. Efforts to increase its performance is by rehabilitation priority scale with following the AHP (Analytical Hierarcy Process) methods. With its main priority is Jragung Dam and Main Canal of Jragung, subsequently Teluk Secondary Canal, Sugihwaras Secondary Canal, Jragung Secondary Canal, Karangsono Secondary Canal, Ngumpul Secondary Canal, Pamongan Secondary Canal and Panjen Secondary Canal respectively. Efforts to overcome the imbalance of irrigation water is by the alteration of cropping periods from November to December and conventional cropping methods to SRI (System Rice Intensification) methods could save 53.25 % of irrigation water. Keywords : Irrigation Performance, Water Balance, AHP, Priority Scale, SRI Method
Model-Model Pembangkitan Data Sintetis Untuk Curah Hujan Harian Di Wilayah Brantas Tengah Soetopo, Widandi; Limantara, Lily Montarcih; Sayekti, Rini Wahyu; Purwati, Endang; Chandrasasi, Dian; Ilham, Muhammad; Rahmadi, Agung
Jurnal Teknik Pengairan Vol 4, No 1 (2013)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

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Abstract

This research is for finding the suitable the synthetic data generating model for daily rainfall in the region of Middle Brantas River Basin in the East Java Province. There are 7 models being considered, 4 models for single-site generation, (1) the two-part, model group, (2) the transition probability matrix model group, (3) the resampling model group, and (4) the time series model group, and 3 models for multisite generation, (5) the conditional, model group, (6) the extension of single site Markov chain model group, and (7) the random cascade model group. All of the time-series produced by the daily rainfall synthetic data generation are then tested statistically. The results show that statistically the differences between the historical time series and the synthetically time series are not too significant. It turn out that the multisite model have produced better synthetic time series compared to those which have been produced by the single-site models.Keywords: generating model, synthetic data, daily rainfall.
PURIFIKASI PARSIAL ENZIM EKSTRASELULER (ANOXYBACILLUS SP.) YANG DIISOLASI DARI SUMBER AIR PANAS BUKIT KILI SOLOK SERTA APLIKASINYA UNTUK MENGHIDROLISIS LIMBAH BERSERAT Octarya, Zona; Syukur, Sumaryati; Purwati, Endang
Jurnal Natur Indonesia Vol 15, No 2 (2013)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (233.856 KB) | DOI: 10.31258/jnat.15.2.106-114

Abstract

Termostable enzyme from thermophilic bacteria is very potential to improve technical enzyme in industry which used hightemperature. High water temperature exerts selection pressure on microbial species leading to specific flora that survivesand tolerates heat stress. The relative isolation and unique physical properties of Bukit Kili Ketek Hot Springs in Solok,West Sumatera may yield unique thermophiles. The generation of extracellular enzymatic bacterial is highly desirable forproduction of hydrolitic enzymes, which are useful in various industrial application and in animal feeds. This study,conducted to purify extracellular enzymes from thermophilic bacteria (Anoxybacillus sp.). This bacteria was isolated inBukit Kili Ketek Hot Springs, and after identified by analysis of 16S rRNA gene, 97% of similiarty with Anoxybacillus sp.was of obtained. The temperature of the hot waters was 52°C and the pH was 8. Extracellular and hydrolytic enzymeproduction were screened by qualitative SDS-PAGE method. SDS-PAGE analysis gave protein bands at ±110 kDa, ±80 kDa,±60 kDa, 50 kDa, 25 kDa, and ±10 kDa, respectively. Extracellular enzymes were used to degrade cellulose waste. Thecellulose activity for degradation of baggasse and pineapple pulp was 0,451 IU/mL and 0,310 IU/mL at 50°C and pH 6.
POLYCLONAL ANTIBODY UTILIZATION FOR DETECTION OF JEMBRANA ANTIGEN AT BALI CATTLE IN WEST SUMATRA PROVINCE Helmi, Helmi; Purwati, Endang; Rahmadani, Ibnu; Subekti, Didik Tulus
Jurnal Kedokteran Hewan Vol 14, No 1 (2020): March
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21157/j.ked.hewan.v14i1.15014

Abstract

The aims of this study were to detect Jembrana antigen with polyclonal antibody and to describe antigen distribution in the Bali cattle organ that positively infected with Jembrana disease. Spleens, lungs, and livers were harvested from 10 naturally infected Bali cattle whose infection was confirmed through positive Polymerase Chain Reaction (PCR) result for Jembrana virus. Immunohistochemistry test was performed using polyclonal antibodies produced in rabbits. The results showed that cells infected by Jembrana viruses displayed positive reaction with a reddish brown color. Immunohistochemistry methods using polyclonal antibodies can detect Jembrana antigens in the spleen, liver, and lung with the highest average detection score (P 0.05) was found in spleen, followed by liver and lungs. There was significant difference in the distribution of Jembrana antigens between the spleen, liver, and lungs with spleen having the highest antigen density.
Analisis Efektivitas Penambahan Kapasitas Pintu Air Manggarai Untuk Pengendalian Banjir Di Wilayah Sungai Ciliwung Anggraini, Nimas Ayu; Dermawan, Very; Purwati, Endang
Jurnal Teknik Pengairan Vol 6, No 1 (2015)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

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Abstract

DKI Jakarta Province consists of 5 cities and 1 district. At the north part of Jakarta there are beaches which became the estuary of 13 rivers and 2 canals. Ciliwung is the main river that has an effect on the lives of people in Jakarta. The Ciliwung river flows towards to BKB. Manggarai sluice gate is located at the upstream of BKB to control Ciliwung river flow. This study was conducted by giving two addition of Manggarai sluice gate, each dimension of additional gate is 3.4 m x 8.1 m and 5 m x 5.3 m. Discharge calculations for hydrology analysis used Log Pearson III while hydraulics analysis used software HECRAS 4.1.0. Discharge data at AWLR MT Haryono control point recorded on January 21st,2013 showed 287.876 m 3 /sec. From the data, sluice gate simulations conducted with 8 alternatives opening gates. In this study showed the most effective results for Q2th and Q5th with opening gates 2 m (alternative 4), Q10th with opening gates 4 m (alternative 5), Q20th and Q25th with opening gates 6 m (alternative 6), Q50 and Q100th with maximum gates opening (alternative 8).Keywords: Sluice Gate, Simulation, Gate Operation, Opening Gate
Model-Model Pembangkitan Data Sintetis Untuk Curah Hujan Harian Di Wilayah Brantas Tengah Soetopo, Widandi; Limantara, Lily Montarcih; Sayekti, Rini Wahyu; Purwati, Endang; Chandrasasi, Dian; Ilham, Muhammad; Rahmadi, Agung
Jurnal Teknik Pengairan Vol 6, No 1 (2015)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

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Abstract

This research is for finding the suitable synthetic daily rainfall generating model in the Middle Brantas River Basin - East Java. There are 7 models being considered, 4 single-site models, (1) the two-part, (2) the transition probability matrix, (3) the resampling, and (4) the time series, and 3 multisite models, (5) the conditional, (6) the extension of single site Markov chain, and (7) the random cascade. All time-series produced by the models are then tested statistically. The results show that the differences between the historial time series and the synthetical time series are not too significant. It turn out that the synthetic time series of multisite models are better than the synthetic time series of single-site models.Keywords: generating model, synthetic data, daily rainfall.
UPAYA KONSERVASI LAHAN BERDASARKAN INDIKATOR EROSI DAN SEDIMEN DI DAS JRAGUNG taufiq, muhamad; Andawayanti, Ussy; Purwati, Endang
Jurnal Teknik Pengairan Vol 7, No 2 (2016)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

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Abstract

ABSTRAK: Daerah Aliran Sungai (DAS) Jragung terletak pada Wilayah Kerja Balai Besar Wilayah Sungai Pemali Juana. Pertambahan penduduk di DAS Jragung wilayah hulu menyebabkan perubahan pada fungsi lahan. Studi Upaya Konservasi Lahan Berdasarkan Indikator Erosi dan Sedimen di DAS Jragung sangat diperlukan untuk meminimalkan permasalahan di DAS Jragung. Pendugaan laju erosi dan sedimentasi dihitung dengan model AVSWAT 2000. Hasilnya menunjukkan besarnya limpasan permukaan, erosi dan sedimentasi sebesar 707,519 mm/thn, 168,51 ton/ha/th dan 229.806,089 ton/th. DAS Jragung memiliki indeks bahaya erosi rendah sebesar 40,19%, sedang sebesar 25,66%, tinggi sebesar 14,63%, dan sangat tinggi sebesar 19,52% terhadap luas DAS jragung Upaya konservasi secara vegetatif dapat mereduksi erosi sebesar 38,19% dan secara mekanis dapat mereduksi sedimen sebesar 48,09%. Kata-kata kunci: Limpasan permukaan, erosi, sedimentasi, AVSWAT 2000 ABSTRACT: Jragung Watershed (DAS) located in BBWS Pemali Juana. The population increase that occurred in the upper reaches Jragung watershed cause many changes in land use. The study of land conservation efforts based on indicators of erosion and sediment in Jragung watershed is necessary to minimize the problems that exist in Jragung watershed. The estimation of the rate of erosion and sedimentation is calculated by the model approach AVSWAT 2000. The results showed that the amount of surface runoff, erosion and sedimentation on the current state of each of 707.519 mm / yr, 168.51 tons / ha / year and 229.806,089 tons / year. Jragung watershed have erosion hazard index was lower by 40.19%, currently at 25.66%, higher by 14.63%, and was very high at 19.52% of the area jragung watershed. Conservation efforts for vegetatif erosion can reduce the amount of 38.19% and mechanically reduce sediment of 48.09%. Key words: surface runoff, erosion, sedimentation, AVSWAT 2000