Goldfish production increase in four years, specifically 66,823,000 in 2010 to 72,997,000 in 2014. The increment of goldfish production growth altogether with problems which is a discontinuity of fry ...stock. The solution for this problem is the purpose of this study, which is understood techniques in Goldfish (Carassius auratus) hatchery. The feed given to goldfish brood is blood worms (Chironomus sp. larvae) and pellets with a ratio of 50:50 as much as 3% of the biomass. Goldfish hatchery techniques involve broodstock cultivation, spawning techniques, larval development observation, and larval cultivation. Two kinds of Goldfish used, namely Oranda and Mutiara Goldfish. The results of Oranda goldfish spawning and Mutiara goldfish spawning consecutively are Fecundity 875 eggs, FR 94%, HR 91.83%, SR 93.04% and Fecundity 3850 eggs, FR 93.66%, HR 92.48%, and SR 91.10%. Larval development observation includes embryogenesis until post-hatched larval. Larval cultivation consists of giving various types of feeds, which are artemia nauplii (for 3-7 days old larval), Moina (for 7-14 days old larval), and blood worm or tubifex (> 14 days old larval). Fertilized goldfish eggs will develop through several phases, including zygotes, initial cleavage, blastula, gastrula, segmentation, pharyngula, egg hatching, and development of larvae after hatching.
Abstract
Catfish is currently the flagship commodity to increase economic value in Indonesia. Catfish farming is very profitable because good broodstock maintenance will produce quality tillers. A ...good catfish broodstock should have a feed management system, thereby improving the quality of mains. The purpose is to learn about feed management technology (life and pellet feed) on the maintenance of Mutiara catfish (
Clarias
sp.). The method is with a descriptive method with immediate data retrieval and secondary data. Life feed is observed by taking water samples and then observed using a microscope. Life feed that is found using a microscope is
Spirulina
sp. and
Chlorella
sp. Feed management on the maintenance of the broodstock of the Mutiara catfish (
Clarias
sp.) is by feeding one time a day at a dose of 1.5 kg, the feed used is pellets PL 1 size 2 mm which has 33% protein and 5% fat, FCR which can be 2.43, absolute growth 15.42 kg, SGR 0.147 %, GR 2.4 gram/day, and SR 100%. Fish enlargement is a business activity maintenance fish up to the size of consumption. The feed is the largest component on the business of catfish enlargement.
Abstract
Striped catfish
(P. hypophthalmus)
is a high economic value and is a determining factor at the hatchery stage. Quality catfish brooders that can produce superior seeds can be obtained ...through good handling. The purpose of this study is to gain knowledge in the maintenance techniques of catfish broodstock. The working methods used in the study is a descriptive method with primary and secondary data collection. Striped catfish broodstock uses a recirculation system which includes preparation of pond maintenance, broodstock maintenance, feed management, water quality management, broodstock selection, and spawning. The results of the average water quality parameters for 25 days are turbidity 17.85 cm, temperature 29.51°C, DO 4.23 mg/L, ammonium 0.005 mg/L, and pH 7.54. The average weight measurements in the first and second sampling are 3.11 kg and 3.13 kg, while the average length measurements in the first and second sampling are 55 cm and 56.05 cm. The growth rate in the maintenance of catfish broodstock for 21 days is 9.52 grams/day, and the specific growth rate is 0.028%. Catfish spawning uses a ratio of ten males and three females.
Abstract
Masterplanplanningis needed for planning and improving a hospital’s performance. The Bengkayang Regency Government plans to upgrade the existing Bengkayang Hospital to Type-B. To realize ...this requires astudy of a master development plan. This study aims to make a comprehensive hospital construction master plan review to support the development of the Bengkayang general hospital in an integrated manner and accommodate all areas. The descriptive qualitative method is used, whichcollects primary data through field observations. All information and data can be obtained visually and then analyzed to get an idea of the factors that will affect the development of the BengkayangGeneral Hospital. The results of this study are the Master Plan program and design review, as well as the stages of development of the Bengkayang Regional General Hospital with appropriate and integrated service functions according to the needs of health services, local culture, natural conditions, available land, and financial conditions. This study will reference local governments for plans to develop advanced and integrated hospitals to continue improving their services.
This research aims to describe metacognitive experience of mathematics education students with strong, average, and weak intrapersonal intelligence in open start problem solving. Type of this ...research was qualitative research. The research subject was mathematics education students in Muhammadiyah University of Surakarta in academic year 2017/2018. The selected students consisted of 6 students with details of two students in each intrapersonal intelligence category. The research instruments were questionnaire, open start problem solving task, and interview guidelines. Data validity used time triangulation. Data analyses were done through data collection, data reduction, data presentation, and drawing conclusion. Based on findings, subjects with strong intrapersonal intelligence had high self confidence that they were able to solve problem correctly, able to do planning steps and able to solve the problem appropriately. Subjects with average intrapersonal intelligence had high self-assessment that they were able to solve the problem, able to do planning steps appropriately but they had not maximized in carrying out the plan so that it resulted incorrectness answer. Subjects with weak intrapersonal intelligence had high self confidence in capability of solving math problem, lack of precision in taking plans so their task results incorrectness answer.
Air pollution has received serious attention from both the government and the public in Bandung, Indonesia. Nuclear analytical techniques (NAT) such as X-ray fluorescence (XRF) have been implemented ...for the quantification of environmental pollutants, especially airborne particulate matter (APM). Sampling for fine APM (PM2.5) and coarse APM (PM2.5-10) have been conducted in Bandung using a GENT sampler, once a week for 24 hrs from 2015 to 2017. The samples were then analyzed for their mass, black carbon (BC), and elemental composition using gravimetric, smoke stain reflectometer, and ED-XRF, respectively. The results obtained indicate that the annual average of PM2.5 is in the range of 17.85-20.90 µg/m3 which has exceeded the Indonesian annual standard (15 µg/m3). While for PM10 it is still below the standard. Compared to PM2.5 and PM2.5-10 in 2002-2004, the concentration has increased by around 35% and 29%, respectively. This situation needs serious attention especially because of the adverse effects of PM2.5 on human health. The average BC fraction at PM2.5 is around 19%. In this paper, chemical composition, annual concentration trends, and correlations between elements will be discussed in detail including the advantages and disadvantages of the NATs method. For the next stage, this information can be used to identify sources of pollutants.
Abstract
The performance of specific growth rate and survival rate of striped catfish (
Pangasianodon hypophthalmus
) in the nursery phase were observed. The working method used in this research was ...data collection methods, consisting of primary and secondary data obtained from direct observations, interviews, and literature study. Nursery activities were carried out starting from larvae that have been depleted of egg sac up to 0.75-1 cm in size. In the end of nursery activities, the result showed 0.43% in specific growth rate and 60.14% in survival rate of siamese catfish fingerlings.
Abstract
The public awareness increasingly for the importance of quality and safety of services in health services such as hospitals or health centers. The Siantan Hilir Health Center has classified ...as complete facilities comparing to other health centers in Pontianak City. From this condition, it is necessary to formulate studies and strategies for improving facilities that refer to the Minister of Health Regulation. This study aims to: 1) as a basis for a feasibility study to improve the status of the Siantan Hilir Health Center into a Type-D Hospital in Pontianak; 2) as a basis for planners to accommodate planned functions; 3) as a basis for effective and efficient circulation planning relate functions in the environment. The research method used the descriptive qualitative approach for describing the current situation to identify the existing conditions of the Siantan Hilir Public Health Care. Space syntax analysis is used to find out the intelligibility of space in the Siantan Hilir Health Center space layout, as seen from the connectivity, integrity, and mean depth of space and behavior mapping. The results are the analysis of spatial layout configuration and the performance of building user behavior to improve the Siantan Hilir Public Health Care into a Type-D Hospital.
This work investigated the protozoan parasites infesting the vannamei shrimp in farmed fish from Pasuruan, Indonesia. The protozoan parasites found in infested vannamei shrimp were ectoparasites; the ...protozoan Zoothamnium sp., Vorticella sp. and Epistylis sp. The fish were collected from a fish culture center in Pasuruan, Indonesia, weekly for one month. The diagnosis method as a part of the protozoan ectoparasite examination was scrapping. The prevalence rate of protozoan ectoparasites were, respectively, 72,5% for Zoothamnium sp., 55% for Vorticella sp. and 42,5% for Epistylis sp.
Abstract
Sampurna Kuningan is a small and medium enterprises (SMEs) specializing in creating various brass metal handicraft products. They need to improve their efficiency in producing brass door ...handles within their manufacturing process. The issues mainly revolve around two tasks - dipping and refining processes. At the finishing stage, the chemical solution left from brass cleaning is improperly treated and disposed of in the sewer, wasting resources. This study’s primary objective is to evaluate the eco-efficiency index (EEI) value and propose improvement strategies to reduce the environmental impact caused by their production activities. The eco-efficiency measurement involves comparing the financial performance represented by the net value and the environmental performance measured as eco-cost. The eco-cost is calculated using a life cycle assessment through the Sima-Pro software. The results of the calculations indicate an EEI value of 2.22. The production process is both economically affordable and sustainable. However, there is a relatively high environmental impact during the finishing process. Improvement scenarios for this process include implementing water treatment or substituting finishing chemicals. Using citric acid for a brass door handle yields a significant average reduction in eco-cost, reaching approximately 50%.
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