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    Wyświetlanie 1-3 z 3
    Tytuł:
    The Effect of Addition of Butterfly Pea Leaf Meal (Clitoria ternatea) in Feed on the Quality of Color of Swordtail Fish Head (Xiphophorus helleri)
    Autorzy:
    Rintan, Octaviana Julia
    Yuli, Andriani
    Lintang, P. S. Yuliadi
    Iskandar, Iskandar
    Powiązania:
    https://bibliotekanauki.pl/articles/1076656.pdf
    Data publikacji:
    2019
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Butterfly pea
    Carotenoids
    Clitoria ternatea
    Color quality
    Feed
    Swordtail fish
    Xiphophorus helleri
    Opis:
    The aim of this study was to determine the effect of butterfly pea leaf as a source of carotenoids on the quality of the color of the heads of swordtail fish. The study was conducted at the Aquaculture Laboratory, Building 4, Faculty of Fisheries and Marine Sciences, Padjadjaran University, from March to April 2019. The research method used an experimental approach with Completely Randomized Design (CRD) consisting of 4 treatments and 3 replications. Those treatments are 0%, 1%, 6% and 12% of butterfly pea leaf meal. The parameters observed included changes in head color quality, absolute weight growth, absolute length growth and water quality. Color observation data were analyzed using Kruskal-Wallis analysis if there were differences between treatments. Multiple comparisons were performed with the Z test with a confidence level of 95%. Data on the length of growth rates and absolute weights were analyzed using analysis of variance via the F test. Here, 95% was set as the confidence level. If there were differences between treatments, this was followed by Duncan test with a confidence level of 95%. The results showed that the addition of 6% butterfly pea leaf meal in commercial feed was able to improve the best color on the part of the swordtail fish head. This saw an average color score 9.56 and color value of 82.2. Addition of carotenoids in feed, however, did not significantly influence the growth of absolute weight or length and water quality.
    Źródło:
    World News of Natural Sciences; 2019, 26; 128-137
    2543-5426
    Pojawia się w:
    World News of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Effect of Potassium Diformate Addition to the Growth Rate and the Activity of Protease Enzyme of Giant Gourami Fingerlings (Osphronemus goramy Lacepede, 1801)
    Autorzy:
    Yustiati, Ayi
    Nugraha, Algi Azmi
    Bioshina, Ibnu Bangkit
    Andriani, Yuli
    Powiązania:
    https://bibliotekanauki.pl/articles/1031523.pdf
    Data publikacji:
    2020
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Osphronemus goramy
    giant gourami
    growth
    potassium diformate
    protease enzyme
    Opis:
    This research aims to investigate the effect of adding potassium diformate to commercial feed on the increase of absolute growth rate and the activity of protease enzyme. The research was conducted from July to October 2019 in the Aquaculture Laboratory Faculty of Fisheries and Marine Sciences, Padjadjaran University. The method applied in this research was an experimental method using a Completely Randomized Design (CRD), which consists of four treatments and four replications. The treatments were: (A) without addition of Potassium diformate (control), (B) addition of Potassium diformate by 0.3%, (C) addition of Potassium diformate by 0.5%, and (D) addition Potassium diformate by 0.8%. The test fish were 300 giant gouramis with 4-6 cm in length. The containers used in this research were 16 rearing aquaria with a size of 40 30 40 cm3. The density of studied giant gourami fingerlings was 10 fish per aquarium. The rearing period was 40 days. The feeding rate was 3% from biomass. Water quality parameters (temperature, pH, and dissolved oxygen), the absolute growth rate, feed conversation ratio and survival rate were observed every 10 days. The protease enzyme activities were observed at the end of the research. Data on the absolute growth rate, feeding conversion ratio, the characteristics of protease enzyme and survival rate were analyzed using the Analysis of Variance (ANNOVA) continued with Duncan’s Multiple Range Test at the level of 95%, while the water quality was analyzed descriptively. The results show that the addition of potassium diformate by 0.3% gave the best result with the absolute growth rate of 1.50%, feed conversion ratio of 2.70, protease enzyme activity by 634.2 μ/mL and survival rate of 100%.
    Źródło:
    World News of Natural Sciences; 2020, 32; 74-86
    2543-5426
    Pojawia się w:
    World News of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of Using Fermented Lemna sp. in Fish Feed on Growth Rate of Nilem Carp (Osteochilus hasselti)
    Autorzy:
    Iskandar, Iskandar
    Andriani, Yuli
    Rostika, Rita
    Zidni, Irfan
    Riyanti, Namira Alfisah
    Powiązania:
    https://bibliotekanauki.pl/articles/1076662.pdf
    Data publikacji:
    2019
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Daily growth rate
    Feed conversion ratio
    Fermentation
    Lemna sp.
    Nilem carp
    Osteochilus hasselti
    Survival rate
    Opis:
    This research aims to determine the highest level of fermented Lemna sp. used in artficial feed to produce optimum growth rate of Nilem Carp. This research was conducted from March to July 2016, in the Ciparanje Laboratory and Aquaculture Laboratory of the Fisheries and Marine Science Faculty, Universitas Padjadjaran. The method used in this research is experimental, and is of a Completely Randomized Design (CRD). It consists of five treatments and three repetitions, providing one commercial diet (as control) and four fermented Lemna sp. levels (10%, 20%, 30%, and 40%). Collected data are analyzed with analysis of variance F-test at 95% confidence level. The parameters observed in this research are divided into four sub-parameters: nutrition changes of fermented Lemna sp., daily growth rate, feed conversion ratio and survival rate. The crude fiber content of Lemna sp. was reduced from 18.37% to 13.57%, and protein content increased from 19.37% to 23.47%, respectively, after fermentation. Based on the results of this research, fermented Lemna sp. used in fish feed at 40% level produced the best results: a daily growth rate at 0.75%, a feed conversion ratio at 3.61 and a survival rate of up to 100%.
    Źródło:
    World News of Natural Sciences; 2019, 26; 157-166
    2543-5426
    Pojawia się w:
    World News of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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