scholarly journals The Utilization of Gracilaria verrucosa as shrimp ponds wastewater biofilter

2020 ◽  
Vol 147 ◽  
pp. 02023
Author(s):  
Cindy Martiana Trianti ◽  
Ratih Ida Adharini
Keyword(s):  
Inorganic Nitrogen ◽  
Quality Parameters ◽  
Absorption Capacity ◽  
Gracilaria Verrucosa ◽  
Nitrogen And Phosphorus ◽  
Shrimp Pond ◽  
Randomized Design ◽  
Before And After ◽  
The Difference

Gracilaria verrucosa as biofilter can absorb and utilize inorganic nitrogen and phosphorus contained in pollutants for its growth. This research aims to know the ability of G. verrucosa as shrimp pond waste biofilter, to know the difference in the quality of shrimp pond wastewater before and after treatment, and to learn more about the absorption capacity of G. verrucosa capability against shrimp pond wastewater. The experiment was conducted on a laboratory scale using a Completely Randomized Design (CRD) consisting of four treatments with three replications using G. verrucosa of different weights which were 100 g, 150 g, 200 g, and controls. The parameters observed in the study were water quality parameters, seaweed biomass, and seaweed absorption. The results obtained were temperature 27.2–30.1°C, TSS 7–76 mg.L-1, pH 7.42–8.83, salinity 16–18 ppt, DO 1.7–5.3 mg.L-1, biomass 74–210.7 g, ammonia effectively decreased on 10th day by 90%, nitrate on 20th day was 22.2% and phosphate value on 30th day was 20.1%. G. verrucosa absorbed nitrogen (N) 0.08% and phosphorus (P) 0.35%. G. verrucosa is potential as a biofilter and can be used as a species candidate for IMTA system.

Pengaruh ovaprim, aromatase inhibitor, dan hipofisa terhadap kualitas telur ikan Lele Dumbo (Clarias gariepinus)

2017 ◽  
Vol 5 (1) ◽  
Author(s):  
Erwin A. Aziz ◽  
Ockstan Kalesaran
Keyword(s):  
Survival Rate ◽  
Experimental Design ◽  
Aromatase Inhibitor ◽  
Fish Larvae ◽  
Clarias Gariepinus ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
The Difference ◽  
Hatching Eggs

This study aimed to determine the effect of ovaprim hormone, aromatase inhibitor and pituitary on the quality of the catfish eggs (Clarias gariepinus). Experimental Design used was Completely Randomized Design (CRD) with four treatments, each with three replications. Treatment A: ovaprim; treatment B: Aromatase inhibitors, treatment C: hypophysis and treatment D: Control. The results showed that the difference in treatment gave highly significant effect on fertilization and hatching eggs but no significant effect on the survival rate of larvae. Aromatase inhibitor hormone was the best because it provided highly significant effect on fertilization (92.66%), hatchability of eggs (95%), and surviva rate (81.33%) of fish larvae.   Keywords : Clarias gariepinus. Ovaprim, Aromatase Inhibitor, Hypophysis, egg, larvae

Bacterioplankton, Phytoplankton, and Zooplankton Communities in a British Columbia Coastal Lake Before and After Nutrient Reduction

1986 ◽  
Vol 43 (8) ◽  
pp. 1504-1514 ◽  
Author(s):  
F. Joan Hardy ◽  
Ken S. Shortreed ◽  
John G. Stockner
Keyword(s):  
British Columbia ◽  
Sockeye Salmon ◽  
Inorganic Nitrogen ◽  
Size Fraction ◽  
Growing Season ◽  
Nutrient Reduction ◽  
Nitrogen And Phosphorus ◽  
Coastal Lake ◽  
Before And After ◽  
High Concentrations

Inorganic nitrogen and phosphorus were applied weekly during the growing season from 1980 to 1982 and twice weekly in 1983 to Hobiton Lake, a warm monomictic coastal lake in British Columbia. The lake was not fertilized in 1984. Average numbers of bacteria during the growing season decreased from a high of 1.53 × 106∙mL−1 in the fertilized condition to 0.84 × 106∙mL−1 in the unfertilized condition. Chlorophyll a concentrations decreased from a maximum seasonal average of 2.69 μg∙L−1 (1981) to 1.30 μg∙L−1 (1984), and algal numbers decreased from 5.83 × 104∙mL−1 (1983) to 2.29 × 104∙mL−1 (1984). Although the numbers of phytoplankton in each size fraction (picoplankton, nanoplankton, or microplankton) decreased in the unfertilized condition, the greatest change was an almost fourfold decrease in picoplankton, which consisted of 90% cyanobacteria (primarily Synechococcus spp.). Abundance of the large diatoms Rhizosolenia spp. and Melosira spp. increased in 1984, resulting in an increase in average seasonal algal volume. Average densities of medium (0.15–0.84 mm) and large (0.85–1.5 mm) zooplankton were greatest in 1982, while rotifers and small zooplankton (0.10–0.14 mm) were most dense in 1984 following nutrient reduction. The lake had relatively high concentrations of planktivorous juvenile sockeye salmon (Oncorhynchus nerka) that appeared to minimize any direct effect of nutrient additions on zooplankton densities.

scholarly journals Evaluation of the effectiveness of self-massage in dysmenorrhea/ Ocena efektywności automasażu w redukcji bólu menstruacyjnego kobiet

2017 ◽  
Vol 11 (3) ◽  
pp. 26-32
Author(s):  
Anna Dobrzycka ◽  
Iwona Wilk
Keyword(s):  
Muscle Tension ◽  
Pain Scale ◽  
Quality Of Sleep ◽  
Menstrual Pain ◽  
Before And After ◽  
Average Pain ◽  
The Difference ◽  
Student’S T ◽  
Experimental Group

Background: Primary menstrual pain affects approximately 45-95% of women between 20-25 years of age. A non-invasive method in reducing menstrual pain by relaxing muscle tension is a massage. It brings the structural tension to normal levels and restores correct blood flow in the pelvic region. Aim of the study: The aim of this study was to test the usefulness of a self-massage in reducing the primary menstrual pain. Materials and methods: Out of 180 female students, 34 women aged 19-30 were qualified for the study with the use of a survey. Pittsburgh Sleep Quality Index questionnaire and visual analog pain scale (VAS) were used for the assessment before and after the therapy. Women in the experimental group performed tensegrity selfmassage a few days before the onset of bleeding for two menstrual cycles. Results were analyzed using Student’s t test and one-way analysis of variance (ANOVA). Results: Applying the self-massage statistically proved to significantly reduce the perception of pain (p=0.001) and the number of days with pain (p=0.007) in the experimental group. Within this group, the difference was noted in all participants except one. In addition, a third measurement was taken in order to assess the duration of the effect. The result of the average pain and number of days of pain after the extension was higher than in the second evaluation, but significantly lower than before the experiment. The significance was in accordance with the evaluation of pain, p=0.002 and number of days p=0.03. Evaluation of the quality of sleep in the experimental group was significantly better (p = 0.04) than before treatment. Conclusions: Self-massage reduces primary menstrual pain in women and can be used as an assisted form of self-therapy. It improves the quality of sleep.

scholarly journals Budidaya ikan mas (Cyprinus carpio) sistem akuaponik dengan padat penebaran berbeda

2019 ◽  
Vol 7 (2) ◽  
Author(s):  
Darwis Darwis ◽  
Joppy D. Mudeng ◽  
Sammy N.J. Londong
Keyword(s):  
Water Quality ◽  
Cyprinus Carpio ◽  
Stocking Density ◽  
Quality Parameters ◽  
Water Volume ◽  
Daily Growth ◽  
Growth And Survival ◽  
Experimental Fish ◽  
The Difference

This research aimed to determine the stocking density that support the best growth and survival rate of carp cultivated in aquaponic systems, and to study the water quality of carp culture with different stocking densities in aquaponic systems. The study used 12 aquaria measuring 40x40x40 cm each (water volume of 50 liters). The experimental fish are carp (Cyprinus carpio) weighing in average of 3.5 g/individual.  The fish were cultivated with different stocking densities as treatment, including A = 4; B = 7; C = 10 and D = 13 individuals/aquarium.  The fish were fed with pellet at 5%/body weight/day with a feeding frequency of two times a day. The study was conducted for 4 weeks. Data consisting of daily growth, survival and water quality parameters (temperature, pH, dissolved oxygen, ammonia, nitrite and nitrate) were measured once a week. The data obtained were analyzed by ANOVA. The results of the study showed that the difference in stocking density had no significant effect on the growth and survival of carp.  Water quality was in a reasonable range to support the growth and survival of carp cultivated with aquaponic systems.Keywords: cultivation, carp, aquaponics, stocking density, growth

Effects of Cellulase on the Chemical Compositions Characteristics and Microbial Community of Saline-alkali Land Alfalfa Silage

2019 ◽  
Author(s):  
Qiang Lu ◽  
Gentu Ge ◽  
Qiming Cheng ◽  
Meiling Hou ◽  
shan Yu Jia
Keyword(s):  
Microbial Community ◽  
Anaerobic Fermentation ◽  
Alpha Diversity ◽  
Chemical Compositions ◽  
Diversity Analysis ◽  
Microbial Network ◽  
Before And After ◽  
Alfalfa Silage ◽  
The Difference

Abstract Background We aim to assess the nutritional quality of alfalfa in saline-alkali and the main fermenting microorganisms acting on alfalfa in saline-alkali soils.Results In this study, We tested the nutrient composition and microbial community of Zhongmu No. 3 (salt-tolerant) alfalfa, including the nutritional fermentation quality and microbial diversity analysis of alfalfa before and after ensiling (30 days and 60 days). Then we got closely genus that related to saline-alkali soils.The validity of the microbiological data was confirmed by alpha diversity analysis. From the Microbial network, we obtained the difference of the saline-type mantle type.Conclusions we found that the silage quality of Saline-alkali alfalfa can be ensured by anaerobic fermentation with addition. The LABs that play a major role in the saline alkaline alfalfa silage are Lactobacillus, lactococcus and enterococcus.

scholarly journals AVALIAÇÃO DA QUALIDADE DE LARANJA PÊRA APÓS ARMAZENAMENTO COM ETILENO

2002 ◽  
Vol 20 (2) ◽  
Author(s):  
JORGE JOSÉ DO VALE OLIVEIRA ◽  
MARIA CECÍLIA DE FIGUEIREDO TOLEDO ◽  
JOSÉ MARIA MONTEIRO SIGRIST ◽  
KATUMI YOTSUYANAGI ◽  
IVÂNIA ATHIÉ
Keyword(s):  
Relative Humidity ◽  
Storage Period ◽  
Quality Parameters ◽  
Chemical Parameters ◽  
Physical Chemical ◽  
Before And After ◽  
Orange Fruit

Laranjas da variedade Pêra, previamente armazenadas durante três dias, com e sem etileno foram pulverizadas com Imazalil, Tiabendazol e a mistura de ambos, formulados ou não com cera. Em seguida, foram mantidas durante 25 dias a 4ºC ± 2ºC/90% ± 5% de umidade relativa, sendo avaliados parâmetros de qualidade da laranja, antes e ao final do armazenamento. Com exceção do atributo cor não ocorreram diferenças estatisticamente significativas nos demais parâmetros químicos e físico-químicos, independente da exposição ao etileno. O etileno foi eficiente no desverdecimento de laranjas, sem comprometer seus atributos de qualidade, e o tratamento posterior com cera contribuiu para manter inalterado o padrão de cor obtido. EVALUATION OF THE QUALITY OF PÊRA ORANGE FRUIT AFTER STORAGE IN ETHYLENE Abstract Oranges of the variety Pêra previously stored during three days with and without ethylene were sprayed with Imazalil, Thiabendazole and a mixture of both fungicides, formulated with and without wax. Following this treatment the fruits were stored during 25 days at 4ºC ± 2ºC / 90% ± 5% of relative humidity, parameters related to orange quality were evaluated before and after the storage period. With exception of the attribute color, no significative statistically differences were observed in the chemical and physical-chemical parameters, independent of the exposure to ethylene. The ethylene was effective for the degreening of orange with no action on the quality parameters. The further treatment with wax contributed to maintain the pattern of colour unchanged.

scholarly journals STUDI KUALITAS KIMIA DAN SENSORIK IKAN PINDANG BANDENG (Chanos chanos Forskal) TANPA DURI YANG DISIMPAN DALAM KEMASAN VAKUM SUHU AMBIENT

2020 ◽  
Vol 3 (2) ◽  
pp. 165
Author(s):  
Rahdi Fajar Miftahulkhair ◽  
Andi Besse Patadjai ◽  
Suwarjoyowirayatno Suwarjoyowirayatno
Keyword(s):  
Ambient Temperature ◽  
Storage Time ◽  
Vacuum Packaging ◽  
Test Results ◽  
Storage Duration ◽  
Chanos Chanos ◽  
Randomized Design ◽  
The Difference

ABSTRACT         The aim of this study was to determine the effect on the freshness quality of thorns leaves milkfish storing at ambient temperature in vacuum packaging. This study used a non-factorial randomized design (CRD) which was storage time consisting of 4 treatments H0 (0 days), H2 (2 days), H4 (4 days), and H6 (6 days). Each treatment was carried out with 3 times replication. Based on the test results, it showed that the difference in different storage duration significantly affected on freshness value of fish (TVB and TMA) of thorns leave milkfish at ambient temperature, along with the time of storage of vacuum packaged fish, the value of TVB and TMA increased on the 6th day of storage (H6) had the highest TVB and TMA values of 24.40 mgN / 100g and 3.43 mgN / 100g, respectively. Keywords: milkfish leave thorns, pindang, sensory, vacuum.ABSTRAKTujuan dari penelitian ini adalah untuk mengetahui nilai kesegaran ikan pindang bandeng tanpa duri kemasan vakum pada suhu ambient. Penelitian ini menggunakan rancangan percobaan adalah Rancangan Acak Lengkap (RAL) non faktorial yakni waktu penyimpanan yang terdiri dari 4 perlakuan yaitu H0 ( 0 hari), H2 (2 hari), H4 (4 hari) dan H6 (6 hari). Masing-masing perlakuan dilakukan sebanyak tiga kali pengulangan, sehingga diperoleh jumlah satuan percobaan sebanyak 12 unit. Berdasarkan hasil pengujian, perbedaan lama penyimpanan berbeda secara signifikan mempengaruhi nilai kesegaran ikan (TVB dan TMA) bandeng tanpa duri yang disimpan pada suhu ambeien, seiring dengan  waktu penyimpanan ikan pindang bandeng tanpa duri kemasan vakum, nilai TVB dan TMA meningkat. Pada hari ke 6 penyimpanan (H6) memiliki nilai TVB dan TMA tertinggi masing-masing 24,40 mgN/100g dan 3,43 mgN/100g.Kata kunci: ikan bandeng tanpa duri, pindang, vakum

scholarly journals Comparison of Quality of Life and Nasal Symptoms in Chronic Rhinitis Patients Between Before and After Treatment

2019 ◽  
Vol 42 (2) ◽  
pp. 21-29
Author(s):  
Malinee Tongdee ◽  
Nichapha Dechapaphapitak ◽  
Thanuchporn Kafaksom ◽  
Umaporn Udomsubpayakul ◽  
Chamard Wongsa ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Allergic Rhinitis ◽  
Short Form ◽  
Rank Test ◽  
Common Disease ◽  
Chronic Rhinitis ◽  
Nasal Symptoms ◽  
Before And After ◽  
The Difference

Background: Chronic rhinitis is a common disease which impacts the quality of life. The symptom of diseases could be controlled after treatment. However, the difference in the quality of life and symptoms after 3 months of treatment is not documented. Objective: To compare the quality of life in chronic rhinitis patients before and at 3 months after treatment. Methods: Prospective study in new cases of chronic rhinitis patients at adult allergy clinic, Ramathibodi Hospital, from August 2017 to March 2018. Assessment of quality of life and nasal symptoms was performed by using the short form 36 health survey questionnaire (SF36) and the rhinoconjunctivitis quality of life questionnaires (RCQ36). Descriptive statistic, t test, and Wilcoxon signed rank test were applied in the data analysis. Results: Of 127 patients, 65.4% were female. Chronic rhinitis was classified as allergic rhinitis, non-allergic rhinitis, and unspecified rhinitis in 72.4%, 18.9%, and 8.7%, respectively. The result of the study showed that there was statistically significant improvement in the quality of life (SF36 and RCQ36 ) and the decrease of nasal and other symptoms score after 3 months of period treatment in chronic rhinitis patients (P < .05). Conclusions: The improvement in the quality of life (SF36 and RCQ36) and the decrease in nasal and other symptoms were documented after 3 months of treatment in chronic rhinitis patients. 

scholarly journals Multi-objective optimization of the apple drying and rehydration processes parameters

2018 ◽  
pp. 1 ◽  
Author(s):  
Radosław Winiczenko, Janaszek-Mankowska
Keyword(s):  
Volume Ratio ◽  
Quality Parameters ◽  
Absorption Capacity ◽  
Multi Objective ◽  
Dry Matter Loss ◽  
Multi Objective Genetic Algorithm ◽  
Mathematical Formulas ◽  
Apple Tissue ◽  
Artificial Neural Network Ann

The aim of the paper is to investigate the effect of drying and rehydration parameters on the quality of rehydrated apples and to optimize these parameters based on quality of the rehydrated products. Hybrid artificial neural network (ANN) and multi-objective genetic algorithm (MOGA) method were successfully developed to model, simulate, and optimize the drying and rehydration parameters. This method was applied to the apple tissue, where the simultaneous maximization of the volume ratio (VR) and water absorption capacity (WAC) and the minimization of colour difference (CD) and dry matter loss (DML) were considered. The range of drying and rehydration parameters was: 50-70°C (drying temperature, Td), 0.01-6 m×s-1(drying air velocity, V), and 20-95°C (rehydration temperature, Tr). Additionally, the mathematical formulas for determing the quality parameters of rehydrated apple were developed. The best solution has been found only for: CD, VR, WAC (50.1°C for Td, 0.03 m×s-1 for V, and 67.5°C for Tr). The values of CD, VR, and WAC were predicted as 1.20, 53.2% and 0.57 respectively. It has been observed that DML was always conflicting with other quality parameters.

scholarly journals Soaking Feet Hydrotherapy Using Warm Water to Improve Quality of Sleeping Among Pregnant Women

2021 ◽  
pp. 16-23
Author(s):  
Ayu Wulandari ◽  
Gita Kostania
Keyword(s):  
Sleep Quality ◽  
Pregnant Women ◽  
Sampling Technique ◽  
Warm Water ◽  
Control Group ◽  
Quality Of Sleep ◽  
Control Group Design ◽  
Before And After ◽  
The Difference

Sleep is a basic need that must be fulfilled by humans. Sleep disorders often occur in pregnant women which has an impact on the quality of sleep. This study aims to identify the effect of soaking feet with warm water on the quality of sleep for pregnant women. This study used a quasi-experiment design with a nonequivalent control group design approach. The sampling technique used total sampling with 40 respondents who were in accordance with the eligible criteria. Interventions are given for 7 consecutive days. Measurement of sleep quality score using the Pittsburgh Sleep Quality Index questionnaire. The difference in sleep quality scores was analyzed by Mann Whitney test, and scores of each component were analyzed by using Wilcoxon test.The results of this study indicate the influence of soaking feet with warm water on sleep quality of respondents before and after the intervention (p = 0.007; α = 5%). From these results, it can be said that there was an increase in quality of sleep after soaking the feet with warm water. Hydrotherapy by soaking feet with warm water can be applied by pregnant women to improve sleep quality.

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