21 research outputs found

    Analisis Kelulushidupan Dan Pertumbuhan Benih Ikan Nila Saline Strain Pandu (Oreochromis Niloticus) Yang Di Pelihara Di Tambak Tugu, Semarang Dengan Kepadatan Berbeda

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    Padat penebaran merupakan hal yang penting dalam USAha penampungan dan pendederan karena akan mempengaruhi oksigen terlarut dan ammonia. Kepadatan yang tinggi maka oksigen terlarut akan berkurang, sebaliknya ammonia akan semakin bertambah akibat buangan metabolisme ikan dan juga sisa pakan. Kondisi tersebut merupakan tekanan lingkungan yang dapat menyebabkan Kenyamanan ikan menjadi terganggu. Pertumbuhan akan terhambat karena energi yang seharusnya digunakan untuk petumbuhan dipakai ikan untuk mempertahankan dirinya dari tekanan lingkungan. Penelitian dilakukan bertujuan untuk mengetahui pengaruh Kepadatan yang berbeda terhadap pertumbuhan benih ikan nila Pandu (O. niloticus) dan juga untuk mengetahui kepadatan yang terbaik untuk kelulushidupan (SR) dan pertumbuhan pada benih nila Pandu (O. niloticus) yang dipelihara di tambak. Penelitian ini dilaksanakan selama 40 hari pengamatan, dimulai dari bulan April sampai dengan Mei 2013 di, tambak desa Tapak kecamatan Tugu, Semarang. Ikan uji yang digunakan adalah benih ikan nila Pandu (O. niloticus) berukuran 3 - 5 cm (D20-D60) dengan bobot 0,58 g. Metode yang digunakan dalam penelitian ini adalah Metode Eksprimen lapangan dengan menggunakan pola Rancangan Acak Lengkap (RAL) dengan 3 perlakuan dan masing – masing 3 kali ulangan. Perbedaan padat penebaran pada setiap perlakuan A, B, dan C masing- masing adalah 15 atau 9 ekor/m2, 25 atau 15 ekor/m2, dan 35 atau 21 ekor/m2 yang dipeliharan di tambak dengan menggunakan hapa. Ikan diberi pakan 5% dari berat biomassa ikan pada pagi, siang, sore hari pukul 08.00, 12.00, dan 16.00 WIB. Variabel yang diuji adalah laju pertumbuhan spesifik (SGR), kelulushidupan (SR), Tingkat Produksi konversi pakan (FCR) dan kualitas air. Hasil penelitian menunjukkan bahwa padat penebaran tidak berbeda nyata (P<0,05) terhadap kelululushidupan, namun berbeda sangat nyata terhadap (P>0,01) pertumbuhan, tingkat produksi, dan rasio konversi pakan. Nilai laju pertumbuhan spesifik untuk masing-masing perlakuan A, B, dan C yaitu (6,94Β±0,028%), (6,23Β±0,041%), dan (5,63Β±0,003%). Nilai kelulushidupan untuk masing-masing perlakuan A, B, dan C yaitu (97,78Β±3,85%), (97,33Β±2,31%), dan (97,14Β±2,86%). nilai tingkat produksi untuk masing-masing perlakuan A,B,dan C adalah (99,96Β±7,14 g), (178,98Β±10,96 g), (257,56Β±16,67 g) Nilai FCR untuk masing-masing perlakuan A, B, dan C yaitu adalah (0,58Β±0.04), (0,75Β±0,04), dan (0,89Β±0,06). Hasil pengukuran parameter kualitas air untuk suhu berkisar antara 26 – 310C, Salinitas 12 – 14 ppt; pH 7,97 – 8,69; DO 3,25 – 3,78 mg/l; dan amonia 0,02 – 0,04 mg/l. Berdasarkan hasil penelitian dapat disimpulkan bahwa kelulushidupan dan pertumbuhan terbaik dengan kepadatan 15 atau 9 ekor/m2. Density stocking important thing deep relocation effort and Nursery because will regard dissolved oxygen and ammonia. Tall density therefore dissolved oxygen will decrease, on the contrary ammonia will get buangan's effect crescent metabolite fishes out and also residuary weft. Condition of that constitute environment pressure that can cause fish convenience becomes to be troubled. Growth will be constrained since energy that necessarily been utilized for Growth is used fishes out to keep her of environment pressure. Conducted research aimed to determine the effect of different density on the growth of Tilapia Pandu (Oreochromis niloticus) and also to determine the best density for survival rate (SR) and growth in Tilapia Pandu strain seed (Oreochromis niloticus) were kept in fish ponds. The research was carried out during 40 days of observation, starting from April to May 2013 in desa tapak, Tugu district, Semarang. Test fish used are Tilapia Pandu (Oreochromis niloticus) fairish 3-5 cm (D 20 -D 60 ) with wight 0,58 g. The Eksprimen's method field used in this study is completely randomized design (CRD) with 3 treatments and each of 3 replications. Differences in stocking density on each treatment A, B, and C, respectively 15 or 9 fish/m2, 25 or 15 fish/m2, and 35 or 21 fish/m2 were keep in the ponds by using hapa. The fish were fed 5% of the fish biomass at 08:00, 12:00, and 16:00 pm. Variables tested is specific growth rate (SGR), survival rate (SR), feed conversion ratio (FCR), production level and water quality.The results showed that stocking density had no effect (P <0.05) against survival rate, but highly significant effect (P> 0.01) growth rate. Value of the specific growth rate for each treatment A, B, and C are (6.94 Β± 0.028%), (6.23 Β± 0.041%), and (5.63 Β± 0.003%) survival values for each treatment A, B, and C are (97.78 Β± 3.85%), (97.33 Β± 2.31%), and (97.14 Β± 2.86%). production level values for each treatment A, B, and C are (99,96Β±7,14 g), (178.96Β±10,96 g), dan (257,56,Β±16,67 g). FCR values for each treatment A, B, and C which is (0.58 Β± 0:04), (0.75 Β± 0.04), and (0.89 Β± 0.06). The results of measurements of water quality parameters for the temperature range between 26 - 330C, salinity 12-14 ppt; pH 7.97 to 8.69; DO from 3.25 to 3.78 mg / l, and ammonia from 0.02 to 0.04 mg / l. Based on the results of this study concluded that the best survival and growth of the density is 15 or 9 fish/m2

    Determinan Stunting Pada Anak Usia 2-3 Tahun Di Tingkat Provinsi (Determinants of Stunting in Children 2-3 Years of Age at Province Level)

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    Background: Stunting prevalence in children 2-3 years of age is still 36.6 percent, the high stunting in the age group shows that nutrition problem in mother during pregnancy is highly related to poverty. Aggregately, PubIic Health Development Index (IPKM) is an indicator of Health Development Improvement and Human Development Index (IPM) is one of 24 IPKM\u27s indicators. Aim of Analysis: To study the determinants which differentiate the high of stunting prevalence in children 2-3 years of age in province level. Method: This analysis is a study of population data that are being analyzed is aggregate data from some variables (IPKM, KEK on pregnant mothers and household energy deficit) from Health Basic Survey (Riskesdas) 2007 data. Then IPM variable and poverty in 2007 from BPS\u27s data. On this analysis, stunting in children 2-3 years of age as variable is bonded, while others variables are free variables. Statistic test that used is correlation test and discriminant test. Result: Bivariately, there is no correlation between KEK in pregnant mothers and stunting in children 2-3 years of age, but there is correlation between stunting with IPKM. IPKM (r=-0.67; p=0.000), IPM (r=-0.52; p=0.002) and poverty (r=0.58; p=0.003). Discriminant result shows that IPKM is a differentiating factor between low- and high- stunting prevalence in children 2-3 years of age in province level. IPKM variance contribution on two different groups is 34 percent. Discriminant function that was resulted Z = -6.491 + 17.853 *IPKM, IPKM with prediction ability 78.8 percent. Conclusion: IPKM is a differentiate factor between high and low stunting prevalence in children 2-3 years of age in province level. [Penel Gizi Makan 2011, 34(1): 50-62

    Hibridisasi Ikan Nila Pandu Dan Kunti Generasi F4 Terhadap Efek Heterosis Pada Ikan Nila Larasati (Oreochromis Niloticus) Generasi F4 Pada Umur 5 Bulan

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    The purpose of this research is measure the difference of heterocyst effect between tilapia larasati F4 fish β™‚, tilapia pandu F4 fish β™‚, and tilapia kunti F4 fish β™‚, and between tilapia larasati F4 fish ♀, tilapia pandu F4 fish ♀, and tilapia kunti F4 fish ♀ in their age of five months. This research took place in Janti Freshwater Fish Hatchery and Aquaculture Unit, Klaten, from October-November 2012. The fish samples were β™‚ and ♀ of F4 generation Larasati tilapia, F4 generation Pandu tilapia, and F4 generation Kunti tilapia at the age of 5 month. The rearring treatment lasted in 30 days. This research applied 3 treatment and 3 replications for each sex. The variables measured were weight, total length, thickness, survival rate (SR), relative growth rate (RGR), feed conversion ratio (FCR), and heterosis value of each variable. The Heterosis value of F4 generation Larasati tilapia at the age of 5 months are as follows SR β™‚ and ♀ 1.66% 2.20%; weight β™‚ ♀ 14.11% and 23.99%; total length β™‚ ♀ 11.05% and 21.24%; thick β™‚ ♀ 10.43% and 20.94%; and FCR β™‚ ♀ 0.59% and 0.38%. Water quality during the research is still in a decent range for tilapia life is temperature 25.8 – 29oC; pH 6.7 to 7.7, and DO from 4.30 to 5.00 mg/ l

    Analisis Risiko Terjadinya Kkp Pada Anak Batita Karena Ibu Menderita Asma

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    ANALISIS RISIKO TERJADINYA KKP PADA ANAK BATITA KARENA IBU MENDERITA ASM

    Conservatism Accountancy, Profit Persistence and Systematic Risk Towards the Earnings Responses Coefficient

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    The purpose of this research is to understand the influence of investor reaction towards profit that measured by the earning response coefficient with the variable of conservatism accountancy, persistence of profit and the systematic risk at the company, which have high market capitalization and listed in the LQ 45 index. Population in the research are companies, which are listed in the LQ 45 index from the period of 2011 to 2015 that have complete financial information, and have financial notation in the form of Rupiah and excluded from the banking sector. The analysis method that being used is multiple linier regressions analysis and the result shows that conservatism accountancy partially significant affecting the Earning Response Coefficient. It shows that there is an investor reaction towards companies in the Index LQ 45, which applies conservatism accountancy in gaining profit. Profit persistence and the systematic risk is not significantly affecting earnings response coefficient

    Emergence of Lava Dome From the Crater Lake of Kelud Volcano, East Java

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    DOI: 10.17014/ijog.v4i4.83Kelud Volcano (+1731 m) in East Java is one of the most active and dangerous volcanoes in Indonesia. A large lake occupies the summit crater. Historical eruptions generally only lasted for a very short time, mostly no longer than a few hours. The outburst is usually accompanied by pyroclastic flows. On August 2007, the activity of the volcano was initiated by the increase of the temperature of lake water and the change of the colour from typical green to yellow. Activities of the volcano are discussed following the swarms of volcano-tectonic (VT) earthquakes on September 10th, September 26th to 29th, and October 24th to November 2nd. On September 26th to 29th, hypocentral distribution of those VT shifted from 5 km deep to just beneath the crater. The highest number of VT earthquakes occurred on November 1st attaining 50 events, then followed by a swarm of B-type events, where the number reached 1437 events in a day. The volcanic activity peaked on November 3rd when seismic records became saturated, which then was preceded by a sharp increase of lake temperature and a sudden deflation of radial tilt. It suggests that the lava extrusion forming a lava dome was taking place
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