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Wyświetlanie 1-7 z 7
Tytuł:
Distribution of heavy metal lead (Pb) on macrozoobenthos in the Karangsong waters area, Indramayu Regency
Autorzy:
Rosidah, Rosidah
Prabowo, Agung
Lili, Walim
Herawati, Titin
Powiązania:
https://bibliotekanauki.pl/articles/1161875.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Karangsong waters area
bioconcentration factor
lead (Pb)
macrozoobenthos
Opis:
The study was conducted in July - August 2018 with the aim of analyzing the concentration of lead heavy metals (Pb) in water, sediment and macrozoobenthos in the Karangsong waters area, Indramayu Regency. The research method used is a survey method with purposive sampling technique that is the determination of location based on the existence of certain objectives and in accordance with various considerations, then observed the content of lead metal (Pb) in the Central Laboratory of Padjadjaran University. The research was conducted in situ and exsitu. Parameters of insitu research include temperature, pH and DO carried out in Karangsong waters, Indramayu Regency. Exsitu research parameters include testing of lead metal (Pb) on water, sediment and macrozoobenthos conducted at the Central Laboratory of Padjadjaran University. The results showed that the Pb concentration in the Karangsong waters had exceeded the threshold, which ranged between 1,05 – 1,33 mg/l, while the Pb concentration in sediment was higher than the Pb concentration in water. Lead metal in sediment has not exceeded the threshold. The ability of macrozoobenthos to accumulate lead metal in water and sediment (Bioconcentration Factor / BCF) is included in the low accumulative category because BCF is less than 100.
Źródło:
World Scientific News; 2018, 112; 207-216
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effectivity of Solution Mangosteen Rind (Garciana mangostana) as Medicine for Black Tilapia Juvenile (Oreochromis niloticus Bleeker) when Infected by Aeromonas hydrophila
Autorzy:
Lili, Walim
Gumilar, Resvi
Nurhayati, Atikah
Rosidah, Rosidah
Powiązania:
https://bibliotekanauki.pl/articles/1062740.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Aeromonas hydrophila
Garciana mangostana
Oreochromis niloticus
Solution mangosteen rind
black tilapia
medicine
Opis:
Many tropical plants have interesting biological activities with potential therapeutic applications. Garcinia mangostana Linn. (GML) belongs to the family of Guttiferae and is named “the queen of fruits”. It is cultivated in the tropical rainforest of some Southeast Asian nations like Indonesia, Malaysia, Vietnam, Philippines, and Thailand. This research aims to determine the concentration of solution mangosteen rind (Garciana mangostana) which is the most effective to healing of black tilapia juvenile (Oreochromis niloticus Bleeker) when infected by A. hydrophila bacteria to produce the highest survival of black tilapia juvenile. This research used experimental method and experimental design by including a complete randomized design (CRD) with five treatments and three replications. The used treatment was soaking black tilapia juvenile for 24 hours in mangosteen rind. The sample infected by A. hydrophila bacteria as much as 0.1 mL/fish at concentration of 108 cfu/mL with intramuscular injection method was used. The concentrations of mangosteen rind solution were 0, 500, 600, 700, and 800 ppm. The parameters observed were clinical symtoms, fish response to feed, fish response to shock, recovery process, and water quality. Data of the clinical symtoms, response fish to feed, response fish to shock, recovery process and water quality were analysed descriptively, while the survival rate data of black tilapia juvenile were analysed using F test at 95% confidence level and continued with Duncan test. The results showed, the use of mangosteen rind solution with 600 ppm concentration was effective to treat tilapia juvenile which infected by A. hydrophila bacteria resulted in the fastest recovery on the third day and the highest survival rate of 91.76.
Źródło:
World Scientific News; 2019, 133; 56-70
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Histopathological changes in gold fish (Carassius auratus (Linnaeus, 1758)) infected by Aeromonas hydrophila bacteria with various densities
Autorzy:
Rosidah, Rosidah
Yunita, Maria Dewi
Nurruhwati, Isni
Rizal, Achmad
Powiązania:
https://bibliotekanauki.pl/articles/1031492.pdf
Data publikacji:
2020
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Aeromonas hydrophila
Carassius auratus
clinical symptoms
histopathology
Opis:
The purpose of this study was to distinguish histopathological changes in carp fish (Carassius auratus) infected by Aeromonas hydrophila with different densities. Five treatments were used in the survey for this research method. The treatments used were bacterial infusion of A. hydrophila in the test fish through intramuscular injection with various densities, namely: A. without infection, B: 105 CFU/mL, C: 106 CFU/mL, D: 107 CFU/mL, and E: 108 CFU/mL. The parameters observed were histopathological changes in gill organs, kidneys and hearts of carp fish (gold fish). Data from histopathological observations were analyzed descriptively. The results present gill organs, liver and kidneys of carp fish infected with the bacteria A. hydrophila at various densities experiencing histopathological changes in the form of hemorrhages, necrosis and congestion and hyperplasia of the renal tubules. Other changes that occur were in the kidney organ experiencing a melanomacrophage center (MC). Tubules were coated with connective tissue and lymphocyte infiltration. The most severe organ damage that occurs in carp fish infected with the bacteria A. hydrophila at a density of 108 CFU/mL (treatment E) is shown by a low survival of 5%.
Źródło:
World Scientific News; 2020, 142; 150-168
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effectiveness of potassium diformate in artificial feed against the growth rate of Nilem fish Osteochilus hasselti (Valenciennes, 1842) seed
Autorzy:
Yustiati, Ayi
Chaerani, Amanda Shafira
Rosidah, Rosidah
Rostini, Iis
Powiązania:
https://bibliotekanauki.pl/articles/1068623.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Growth Rate
Nilem Fish
Osteochilus hasselti
Potassium diformate
Opis:
Nilem fish is an endemic fish in West Java that has the potential to be developed into superior aquaculture products. The effect of feed additives on growth can help in increasing the protein synthesis process so that the fish growth process can be optimal. This research was carried out at the Ciparanje Experimental Pond Hatchery at the Faculty of Fisheries and Marine Sciences, Universitas Padjadjaran, from October 1 2018 to November 20 2018. The research method was carried out experimentally with Completely Randomized Design (CRD). This study used four treatments which were repeated three times. The treatment in this study consisted of adding potassium diformate to artificial feed at doses of 0%, 0.1%, 0.3%, and 0.5% per 100 grams of feed. The parameters observed in this study were survival, growth rate, feed efficiency, and water quality. The analysis used was the f test and descriptive analysis. The survival rate, growth rate and feed efficiency range from 87.08% -93.75%, 2.22% -2.26% and 41.21%-47.69% respectively. The addition of potassium diformate to artificial feed up to 0.5% per 100 grams of feed can be used as a feed additive in nilem fish cultivation.
Źródło:
World Scientific News; 2019, 132; 244-255
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Diversity and the abundance of the insect of Coleoptera orders at Mamberamo river bank of Papua Province, Indonesia
Autorzy:
Rizal, Achmad
Suryana, Asep Agus Handaka
Rosidah, Rosidah
Nurruhwati, Isni
Powiązania:
https://bibliotekanauki.pl/articles/1062754.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Biodiversity
Coleoptera
Mamberamo River
Papua Province
Opis:
This study aims to determine the diversity and abundance of the order Coleoptera on the riparian of the Mamberamo river in Papua Province. The method used is a survey method. Determining the location and station of research was conducted by purposive sampling method. Sampling the species of the order Coeloptera was done by direct sampling, insect nets and traps insects. Samples were analyzed using species diversity index, relative abundance index, dominance index and evenness index. The results found were 437 individuals, 29 species and 12 families of the order Coleoptera. Family of the order Coleoptera cover, namely Carambycidae, Carabidae, Chrysomilidae, Ciidae, Coccinellidae, Curculionidae, Dystiscidae, Melandryidae, Phalacridae, Scarabidae, Staphylinidae, and Tenebrionidae. The family of Coccinellidae and Chrysomilidae have the highest number of species, namely 8 species. The highest number of individuals was found in the family Chrysomilidae of survey sites Station I, which is a species Lema diversa (114 individuals). Based on the survey area, the highest individual number of the order Coleoptera was found in the Station I (451 individuals). The species diversity of Coleoptera covers the riparian of the Mamberamo river in Papua different. Diversity index of insect order Coleoptera in four locations in Papua Mamberamo river riparian has been classified as moderate or not so diverse. Evenness index of the order Coleoptera in four survey sites of Papua Mamberamo river riparian lower appears quite evenly. Dominance index species of the order Coleoptera on the riparian of Mamberamo River in Papua showed the value <0.50, meaning do not happen dominance of certain species. The information of this research results is expected to be the initial information diversity and abundance of the order Coleoptera on the riparian of the Mamberamo river, Papua Province.
Źródło:
World Scientific News; 2019, 133; 132-144
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Growth characteristics and antagonistic potential of Bacillus cereus and Bacillus zhangzhouensis against pathogenic bacteria Aeromonas hydrophila in vitro
Autorzy:
Sofandi, Adrianti Nur Fitria
Mulyani, Yuniar
Rochima, Emma
Rosidah, Rosidah
Powiązania:
https://bibliotekanauki.pl/articles/1193481.pdf
Data publikacji:
2021
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Aeromonas hydrophila
Bacillus cereus
Bacillus zhangzhouensis
antimicrobial activity
pathogenic bacteria
Opis:
This study aims to examine the growth characteristics of B. cereus and B. zhangzhouensis and to see their potential in preventing the growth of Aeromonas hydrophila in vitro. This research was conducted in June 2020 - May 2021 at the Laboratory of Microbiology and Biotechnology, Faculty of Fisheries and Marine Sciences, Padjadjaran University. The method used is the exploratory method and the data obtained were analyzed descriptively. The growth curve was performed using the turbidimetric method. The inhibition test used the disc diffusion method with 5 treatments, chloramphenicol antibiotics (4000 ppm), distilled water, bacterial culture, 100% supernatant and 50% supernatant. The curve results showed that the growth of B. cereus and B. zhangzhouensis was slow. The stationary phase of B. cereus occurred at 40-72 hours, while in B. zhangzhouensis the stationary phase occurred at 48-72 hours. The results of the inhibition test showed that the antimicrobial activity of B. cereus and B. zhangzhouensis was weak with a value range of 0.71 - 1.6mm, besides that the results of the inhibition zone produced by these two bacteria have different inhibitory abilities in each treatment.
Źródło:
World Scientific News; 2021, 158; 187-200
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effectiveness of Bacillus sp. to increase the body resistance of common carp (Cyprinus carpio Linnaeus, 1758) against the attack of Aeromonas hydrophila
Autorzy:
Insanie, Zahara Pujie
Mulyani, Yuniar
Handaka, Asep Agus
Rosidah, Rosidah
Powiązania:
https://bibliotekanauki.pl/articles/1062804.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Aeromonas hydrophila
Bacillus sp
Body resistance
Common carp
Cyprinus carpio
Opis:
This study aims to determine the best density of Bacillus sp. which is given through feed to increase the body resistance of carp that is infected by pathogenic bacteria, Aeromonas hydrophila. The research was conducted at the Aquaculture Laboratory and Laboratory of Microbiology and Biotechnology at FPIK UNPAD. This study used an experimental method with a completely randomized design consisting of 4 treatments and 3 replications, namely treatment A (control), treatment B (Bacillus sp. 106 cfu/mL feed), treatment C (Bacillus sp. 108 cfu/mL feed) and treatment D (Bacillus sp. 1010 cfu/mL feed) for two weeks later in Aeromonas hydrophila infection with an intramuscular density of 108 cfu/mL for seven days. Observation parameters were clinical symptoms, fish response to feed, fish response to shock and survival. The results of this study showed that treatment C (Bacillus sp. 108 cfu/mL feed) resulted in 89% survival and reduced clinical symptoms.
Źródło:
World Scientific News; 2019, 133; 263-274
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-7 z 7

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