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Indonesian Journal of Applied Sciences

ijas
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Published by Universitas Padjadjaran

ISSN : 20899203 EISSN : 25811991 DOI : -

Core Subject : Social,

Environmental Science

Indonesian Journal of Applied Sciences (IJAS) is a scientific journal published three times a year (April, August, December). Indonesian Journal of Applied Sciences publish original research results related to research in the field of natural science, covering a wide range of topics written in the field of knowledge: medicine, agriculture, animal husbandry, fisheries, pharmaceuticals, and other exact sciences

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Articles 144 Documents

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VALIDASI METODE OKSIDASI ELEKTROKIMIAYANG TERMEDIASI – KONDUKTOMETRI UNTUK PENENTUAN KADAR FENOL EUIS IFAH LATIFAH
Indonesian Journal of Applied Sciences Vol 3, No 1 (2013)
Publisher : Universitas Padjadjaran

KETERKAITAN SUBSISTEM AGRIBISNIS ITIK ALABIO PETELUR DI KABUPATEN HULU SUNGAI UTARA PROVINSI KALIMANTAN SELATAN (The Relationship Between Agribusiness Subsystems of The Alabio Layer Ducks In Hulu Sungai Utara District South Kalimantan Province) Siti Erlina
Indonesian Journal of Applied Sciences Vol 3, No 3 (2013)
Publisher : Universitas Padjadjaran

AbstrakUsaha peternakan itik alabio di Kabupaten Hulu Sungai Utara belum berkembang sebagaimana mestinya ditunjukkan 80 persen peternak kepemilikannya dibawah 500 ekor. Pengembangan agribisnis itik alabio dengan memperhatikan semua subsistem menjadi penting agar diperoleh tingkat produksi dan pendapatan maksimal.Penelitian bertujuan untuk mengkaji keterkaitan antar subsistem agribisnis itik alabio petelur terhadap produksi dan pendapatan peternak. Penelitian menggunakan metode survey, penentuan sampel peternak memakai teknik stratified random sampling, sedangkan sampel pedagang, breeder dan pembesaran melalui teknik purposive. Hipotesis diuji dengan analisis multivariat, uji F dan uji T. Hasil penelitian menunjukkan pengembangan agribisnis melalui peningkatan produksi dapat dilakukan dengan memperhatikan sumber bibit, harga kandang, jumlah pakan, jumlah tenaga kerja dan biaya pemasaran, sedangkan melalui peningkatan pendapatan dengan memperhatikan sumber bibit, harga bibit, harga kandang, jumlah pakan dan biaya pemasaran. Secara bersama-sama semua subsistem menentukan namun secara parsial subsistem lembaga penunjang tidak menentukan tingkat produksi dan pendapatan peternak.Kata kunci : Kabupaten Hulu Sungai Utara, itik alabio, pengembangan gribisnis.AbstractAlabio duck farming businesses in Hulu Sungai Utara district have not yet been developed as it should be, it indicated that 80 percent of the owners farmers just owned under 500 ducks. Alabio duck agribusiness development with attention to all subsystems become important in order to obtain the maximum level of production and income. This research aimed to examine the linkages between agribusiness subsystems of Alabio duck layers . Research used a survey method with stratified random sampling technique, while the sample traders, breeders and growers by using purposive. The hypothesis testing analysis used multivariate analysis, F test and T test. The results showed, agribusiness development through increased production can be done with the source of female ducks, cages prices, the amount of feed, the amount of labor and marketing costs. While through increasing of revenue could be fulfilled by female duck sources, female duck price, price of the cage, the amount of feed and marketing costs. Together of all subsystems were crucial but in partial subsystems supporting institutions did not determine the level of production and income of the farmers. Keywords: Hulu Sungai Utara District, Alabio ducks , agribusiness development.

EFEK WAKTU MULAI PEMBERIAN RANSUM SETELAH MENETAS DAN IMPLIKASINYA TERHADAP PENAMPILAN AYAM BROILER Mega Royani
Indonesian Journal of Applied Sciences Vol 2, No 1 (2012)
Publisher : Universitas Padjadjaran

This study was held to find out the effect of early held feeding times on growth performance, weights of the small intestine andprotease enzyme activity in broiler chickens. The reseach used 192 birds final stock broiler strain Cobb, were randomly placed into twenty four cages and eight birds in every cage unit. The reseach was experimental used Completely Randomized Design (CRD) with six treatments and four replication. The treatment were post-hatch feeding times on 6 hour (R1); 12 hour (R2); 24 hour (R3); 36 hour (R4); 48 hour (R5); dan 60 hour (R6). The result of reseach have shown that post-hatch feeding times until 36 hour can gave are growth performance, weights of the small intestine and protease enzyme activity of broiler with normal result.

PENGARUH BASIC SALES TRAINING, REWARD SYSTEM, DAN LEADER'S BEHAVIOR STYLE TERHADAP WORK MOTIVATION PADA TENAGA PENJUAL ASURANSI JIWA DI DKI JAKARTA Yon Nofiar
Indonesian Journal of Applied Sciences Vol 4, No 3 (2014)
Publisher : Universitas Padjadjaran

ANALISIS TERJADINYA KARIES GIGI BERDASARKAN PEMERIKSAAN KADAR MUC7 DAN ENZIM GLUKOSILTRANSFERASE (GTF) SALIVA PADA ANAK-ANAKKARYAWAN PTPN VIII YANG BERUMUR 12-13 TAHUN - Dental Caries Analysis Based On Salivary Examination Of Muc7 Levels and Enzyme Glucosyltransferase (gtf) In 12-13 Years Old Children PTPN VIII Employees Sjazili S. Muhibat
Indonesian Journal of Applied Sciences Vol 5, No 1 (2015)
Publisher : Universitas Padjadjaran

AbstrakKaries gigi merupakan penyakit infeksi multifaktorial, faktor etiologi tersebut saling berkaitan satu sama lainnya dan digambarkan sebagai empat lingkaran yang saling berimpitan satu sama lainnya. Protein saliva MUC7 yang terdapat dalam saliva berperan penting dalam melindungi jaringan lunak dan keras rongga mulut dari infeksi bakteri patogen. Tujuan penelitian ini untuk mengetahui kaitan antara MUC7 dan glukosiltransferase dengan karies gigi, yang dapat menimbulkan dugaan bahwa MUC7 dan glukosiltransferase berperan penting terjadi karies gigi. Motode penelitian ini bersifat cross sectional study di lapangan dan laboratorium. Sampel penelitian ini adalah 138 orang anak karyawan PTPN VIII Pengalengan usia 12-13 tahun. Pada penelitian ini digunakan analisis chi kuadrat, korelasi rank Spearman, analisis regresi logistik ganda dan kurva ROC. Hasil penelitian terdapat korelasi yang signifikan antara MUC7 dengan karies gigi, nilai koeffisien korelasi 0,209* dengan p 0,014, dan tidak terdapat korelasi yang signifikan antara glukosiltransferase dengan karies gigi. Hasil perhitungan dengan regresi logistic ganda diperoleh hubungan yang signifikan antara MUC7, glukosiltransferase (GTF) dengan karies gigi. Hasil kurva ROC diperoleh bahwa kadar MUC7 ≤604,02 ng/ml akan berrisiko terjadinya karies gigi 2,085 kali bila dibandingkan dengan kadar MUC7 >604,02.ng/ml. Sedangkan kadar Gtf ≤5,247 ng/ml juga berrisiko terjadi karies gigi sebesar 2,273 kali dibandingkan dengan kadar Gtf >5,247 ng/ml. Simpulan penelitian ini adanya korelasi yang signifikan antara MUC7, GTF dengan karies gigi. Menunjukkan pula bahwa rendahnya kadar MUC7 dan glukosiltrans ferase (GTF) lebih berrisiko terhadap terjadinya karies gigi. Kata kunci; MUC7, glukosiltransferase (GTF), karies gigiAbstractDental caries is a multifactorial infectious disease, which the etiologic factors are related each other and are shown as four interlocking circles coincide with each other. MUC7 salivary proteins plays an important role in protecting the hard and soft tissues of the oral cavity from bacterial pathogen infection. The aim of this research was to each other between MUC7 and glucosyltransferase to dental caries, which can give rise to allegations that the MUC7 and glucosyltransferase plays an important role occur of dental caries. Method of this study is a cross sectional in the field and laboratory. The samples were 138 the children of employees of PTPN VIII Pengalengan 12-13 years old. Analyses of this study are χ2, Spearman's rank test, multiple regression, logistic regression, and ROC curve. The results there was a significant correlation between MUC7 with dental caries, the value of the correlation coefficient 0.209* and p= 0.014, and there was no significant correlation between the glucosyltransferase to dental caries. Calculation of logistic regression obtained significant relationship between MUC7, glucosyltransferase (GTF) with dental caries. The result of ROC curve was obtained that MUC7 levels ≤ 604.02 ng/ml will be at risk 2,085 times dental caries levels when compared with MUC7> 604.02 ng/ml. While the GTF levels ≤ 5,247 ng/ml are also at risk of dental caries occurs 2,273 times compared to the GTF levels> 5,247 ng / ml. The conclusions of this study are significant correlation between MUC7, GTF to dental caries. Also showed that low level of MUC7 and glucosyltransferase (GTF) is more at risk for dental caries.Key word: MUC7, glucosyltransferase, dental caries.

STRATEGI PENGEMBANGAN AYAM BIROMARU DALAM UPAYA PENYEDIAAN BIBIT AYAM PEDAGING LOKAL Awaluddin Awaluddin
Indonesian Journal of Applied Sciences Vol 2, No 2 (2012)
Publisher : Universitas Padjadjaran

This study was aimed to know the heritability of body weight of age 1 to 12 weeks, the most appropriate selection methods, the correlation coefficient of estimate breeding value, the best selection standards, the percentage of chicken carcasses and toformulate development strategy as a locally provision chicken broiler. This study used six males and 18 females. While technically a marriage using the natural way. The research data obtained from 121 of the tail, which consisted of 37 males and 84 females. Data were analyzed by using the VCE 6 (Groneveld, 2008), PEST (Groneveld, 1999), and SAS 9 using univariate Animal Models. The results of this study have (1) The heritability of body weight from week 1 to week 12 ranged from 0.448 ± 0.076 to 0.500 ± 0.489, (2) To improve the genetic quality of Biromaru chicken should be done by the method of mass selection or individual selection on the weight agencies and other properties of highly correlated with body weight, (3) The correlation coefficient of body weight breeding value of 1 to 12 weeks of age in chickens ranged from 0.2019 between the age of 10 weeks to the age of one week, until 0.9217 at coefficient correlation between the age ?10 weeks of age to the age of 9 weeks, (4) The standard of selection is best depends on the selection standards that we use, if we use the standard selection of 8 weeks of selection should be done at the age of 4 weeks with a correlation coefficient of breeding value of 0.7138, whereas if we use the standard 12 weeks of selection then the selection should be done at age 8 with a correlation coefficient breeding weeks value of 0.6264, (5) The percentage of chicken carcasses Biromaru at the age of 4, 8 and 12 weeks in a sequence that is 56 , 10%, 60.31% and 61.64%, and(6) Poultry Supply Biromaru Chicken (DOC) Model with closed nucleus breeding scheme with two levels namely; nucleus andbranchs.

RESPONS PENGGEREK BATANG PADI KUNING Scirpophaga incertulas (WALKER) TERHADAP VARIETAS PADI DAN TAKARAN KOMPOS JERAMI PADI PADA BUDIDAYA SYSTEM OF RICE INTENSIFICATION Elly Roosma Ria
Indonesian Journal of Applied Sciences Vol 3, No 2 (2013)
Publisher : Universitas Padjadjaran

STRATEGI ADAPTASI NELAYAN PANTAI SIBOLGA TERHADAP PERUBAHAN LINGKUNGAN WILAYAH PESISIR KOTA SIBOLGA, SUMATERA UTARA Daud Daniel Hutapea; Yayat Dhahiyat; Sunardi Sunardi
Indonesian Journal of Applied Sciences Vol 4, No 2 (2014)
Publisher : Universitas Padjadjaran

Adaptation strategies are responses from fishermen and fishing methods undertaken to obtain better results in fisheries activities. This strategy is believed to be a way to survive and can compete with other fishermen. On fishing communities, patterns of adaptation to adjust to the physical environment of marine ecosystems and the surrounding social environment. For people who work in the middle of the ocean, the ocean is the physical environment hazards. In many ways working in the marine environment laden with risk. Because fishermen are hunting for fish work, the results can not be determined certainty, everything is almost completely speculative. This study uses a mix of qualitative predominantly and quantitative less dominant. Qualitative methods are used to obtain in-depth information and coastal environmental change adaptation strategies Sibolga shore fishermen. Quantitative methods are used to obtain information characteristics of respondents fishing with size 87 samples taken from 65 households fisherman outboard motor boats and 22 fishing boats without motors households. Quantitative methods are also used to obtain data on changes in coastal environments. The analysis in the combined analysis methods using triangulation. Coastal environmental changes that occur are physical changes due to coastal Sibolga hoarding, residential additions and construction of buildings that affect the marine ecosystem fisheries; extent of decline of coral reefs, mangroves and seagrass beds caused, and a decline in quality of sea water in the surrounding waters Sibolga. Adaptation strategies Sibolga shore fishing can be divided into three aspects, namely social, economic and fishing techniques. Social adaptation strategy consists of social networks, mobilizing role of family members, changes in fishing group. Economic adaptation strategy consists of adding new gear, diversification of employment and capital management fishing. Adaptation strategies fishing technique consists of raising engine capacity ships, the use of technology, further the fishing area, adding to sea long, deepening the depth of fishing and the use of fishing tools.Keywords : Adaptation strategies fishermen, environmental change, coastal .

KELANGSUNGAN HIDUP DAN PERTUMBUHAN LARVA RAJUNGAN (Portunus pelagicus) MELALUI PEMBERIAN NAUPLIUS Artemia YANG DIPERKAYA DENGAN MINYAK IKAN DAN MINYAK JAGUNG Katisya Abrina Prastyanti; Yuli - Andriani; Ayi Yustiati; Sunarto Sunarto
Indonesian Journal of Applied Sciences Vol 7, No 3 (2017)
Publisher : Universitas Padjadjaran

Tujuan penelitian ini adalah untuk mengetahui kelangsungan hidup dan pertumbuhan larva rajungan (P. pelagicus) melalui pemberian nauplius Artemia yang diperkaya dengan minyak ikan dan minyak jagung. Penelitian ini dilakukan di Panti Pembenihan Family Portunidae, Balai Besar Perikanan Budidaya Air Payau (BBPBAP) Jepara, Jawa Tengah. Larva yang baru menetas (zoea 1) dipelihara dalam wadah plastik 20 L yang diisi 15 L air laut dengan kepadatan larva 50 ind/L. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) dengan enam perlakuan dengan tiga kali ulangan, yaitu : A (tanpa pengayaan), B (100% minyak ikan + 0% minyak jagung), C (75% minyak ikan + 25% minyak jagung), D (50% minyak ikan + 50% minyak jagung), E (25% minyak ikan + 75% minyak jagung), F (0% minyak ikan + 100% minyak jagung). Parameter utama yang diamati adalah kelangsungan hidup dan pertumbuhan panjang mutlak. Analisis statistik dilakukan dengan analisis ragam (ANOVA) dan uji jarak berganda Duncan taraf kepercayaan 95%. Hasil penelitian menunjukkan bahwa perlakuan memberikan pengaruh nyata terhadap kelangsungan hidup dan pertumbuhan larva P. pelagicus. Pemberian nauplius Artemia yang dipperkaya 75% minyak ikan dan 25% minyak jagung mempunyai kelangsungan hidup terbaik sebesar 12,89% dengan pertumbuhan panjang mutlak sebesar 2,12 mm.

Produksi Asam Laktat dari Empulur Sagu (Metroxylon sagu Rottb.) secara Fermentasi Curah dengan Lactobacillus Bulgaricus FNCC 0041 dan Streptococcus Bovis Lasam Soeroso
Indonesian Journal of Applied Sciences Vol 1, No 3 (2011)
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/ijas.v1i3.1883

Research on lactic acid production from sago pit (Metroxylon sagu, Rottb), by batch fermentation using Lactobacillus bulgaricus FNCC 0041 and Streptococcus bovis has been done. The research was divided into two stages:1) supporting research that included preparation of 100 mesh powder and analyzing its component; selecting the optimum percentage of powder for hydrolysis; optimizing HCl, temperature and hydrolysis time; optimizing the dozes and enzyme condition; optimizing the percentage of enzyme hydrolysate; 2) main research that included: hydrolyis of pit powder using 4N HCl; hydrolysis of HCl hydrilisate with α-amylase; hydrolysis of α-amylase hydrolysate using mixed enzyme cellulase, amyloglucosidase and hemicellulase; single culture lactate production of L. bulgaricus FNCC 0041 and Streptococcus bovis in pure enzyme hydrolysate; mixed culture lactate production of L. bulgaricus FNCC 0041 and Streptococcus bovis in pure enzyme hydrolysate By hydrolyzing of 10% powder or 5.78 g using 4N HCl produced reducing sugar as much as 3.47 g (59.79%). Enzimatic hydrolyzing produced reducing sugar 5.13g from 5.78 g powder (89.00%). Single culture lactate production of L. bulgaricus FNCC 0041 and S. bovis in pure enzyme hydrolysate produced 0.05 g/l and 0.003g/l each. Mixed culture lactate production of L. bulgaricus FNCC 0041 and S. bovis in pure enzyme hydrolysate produced lactate as much as 14.06 g/l or 0.23 g/l/h a t 60 hours incubation. It can be concluded that mixed enzymes produced higher reducing sugar than that of using 4N HCl. Mixed culture fermentation of L. bulgaricus FNCC 0041 and Streptococcus bovis in pure enzyme hidrolysate produced higher lactate than single culture. Hydrolysate of sago pit can be used to substitute pure sugar as a substrate of fermentation .****Penelitian tentang produksi asam laktat dari empulur sagu (Metroxylon sagu, Rottb.) secara fermentasi curah dengan Lactobacillus bulgaricus FNCC 0041 dan Streptococcus bovis. telah dilakukan. Penelitian dibagi dua kelompok: 1) penelitian penunjang meliputin pembuatan serbuk dan analisis komponennya; pemilihan serbuk untuk hidrolisis; optimasi HCl, suhu dan waktu hidrolisis; optimasi dozis dan kondisi.enzim; optimasi % hidrolisat enzim; 2) penelitian utama mencakup: hidrolisis serbuk empulur dengan 4N HCl; hidrolisis hidrolisat HCl dengan α-amilase; hidrolisis hidrolisat α-amilase dengan enzim campuran selulase, amiloglukosidase, dan hemiselulase; produksi laktat dari kultur tunggal Lactobacillus bulgaricus FNCC 0041 dan Streptococcus bovis dalam medium hidrolisat enzim murni; produksi laktat dari campuran Lactobacillus bulgaricus FNCC 0041 dan Streptococcus bovis dalam medium enzim murni. Dari hidrolisis 10% serbuk menggunakan 4N HCl menghasilkan gula pereduksi sebesar 3,47 g (59,79%). Hidrolisis enzimatis menghasilkan gula pereduksi sebesar 5,13 g dari 5,78 g serbuk (89,00%). Produksi laktat kultur tunggal L. bulgaricus FNCC 0041 dan S. bovis dalam mediu m hidrolisat enzim murni menghasilkan 0,05 g/l dan 0,003 g/l. Produksi laktat dari campuran L. bulgaricus FNCC 0041 dan S. bovis dalam medium hidrolisat enzim murni, adalah sebanyak 14,06 g/l atau 0,23 g/l/jam produktivitas pada jam ke 60. Dari hasil penelitian disimpulkan bahwa hidrolisis empulur sagu dengan campuran enzim menghasilkan gula pereduksi lebih tinggi daripada hidrolisis menggunakan 4N HCl. Fermentasi kultur campuran dari L. bulgaricus FNCC 0041 dan S bovis dalam hidrolisat enzim murni menghasilkan produk laktat lebih tinggi daripada produk laktat yang dihasilkan oleh kultur tunggal. Hidrolisat empulur sagu dapat digunakan untuk menggantikan gula-gula murni sebagai substrat fermentasi.

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