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All Journal Berkala Perikanan Terubuk BIOTROPIA - The Southeast Asian Journal of Tropical Biology Omni-Akuatika Jurnal Akuakultur Sungai dan Danau Indonesian Aquaculture Journal Jurnal Riset Akuakultur Jurnal Pengabdian Magister Pendidikan IPA Lempuk: Jurnal Ilmu Kelautan dan Perikanan Journal of Artha Biological Engineering
Sri Marnani
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Education Environmental Science Immunology & microbiology Medicine & Pharmacology Veterinary Other

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Journal : Journal of Artha Biological Engineering

 1 
EFFECT OF ASTAXANTHIN ON THE COLOR INTENSITY OF GUPPY FISH (Poecilia reticulata) soedibya, petrus; Hawari , Abidzar; Kasprijo, Kasprijo; Marnani, Sri; Muslih, Muslih; Fitriadi, Ren
Journal Of Artha Biological Engineering Vol. 2 No. 1 (2024)
Publisher : PT. Artha GenetikaLab Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62521/42gtk346

Abstract

Guppy fish is one type of ornamental fish which is in great demand due to its interesting color variations. Color of ornamental fish will be brighter if the feed contains color pigments. The study aims to determine the effect of Astaxanthin supplement in pellets on the color brightness of guppies and to find the best dose of Astaxanthin supplement in pellets on the color brightness of guppies. The method used in the study was complete randomized design (CRD) consisting of five treatments (Astaxanthin supplements of 0%, 2%, 3%, 4% and 5%) and three replications. The experimental fish were male guppy fish Strain HB Red ± 3 cm length with a density of 3 fish/aquarium. Feeding was done twice a day and siphoning was done every afternoon. The parameters observed were Chroma value, survival rate and water quality. The results show that the supplement of Astaxanthin in pellets successfully increase the brightness of guppies and the best dose of Astaxanthin supplement in pellets was 5% with an increase in Chroma value of 4.82%. The survival rate obtained was 100%. Water quality includes an average temperature of 26-27 ℃ and pH of 6-7 and dissolved oxygen (DO) was 6.95-7.93 ppm
EFFECT BRIGHTNESS COLOR GUPPY FISH (Poecilia reticulata) soedibya, petrus; Gultom, Noris; Marnani, Sri; Muslih, Muslih; Fitriadi, Ren
Journal Of Artha Biological Engineering Vol. 2 No. 2 (2024)
Publisher : PT. Artha GenetikaLab Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62521/jypcxk46

Abstract

Guppy fish (Poecilia reticulata) is a popular ornamental fish because of their unique color patterns, the color of ornamental fish will fade if their feed does not contain enough pigmentation to keep them bright. This study aimed to determine the effect of adding Spirulina sp. powder with different dosage to the feed on the color brightness of guppy fish. This study used a completely randomized design (CRD) with five treatments (feed added with Spirulina sp. powder as much as 0%, 0.3%, 0.6%, 0.9%, and 1.2%) and three replications. The test fish were male HB Red guppy fish with a size of 3 cm and a density of 3 fish/aquarium. Water changes (siphoning) was done every morning, and feeding was done twice a day. The parameters observed in this study were the chroma value, survival rate, and water quality. The result showed that the effect of adding Spirulina sp. powder to the feed at a dose of 0.9% and 1.2% had a significant effect on the color brightness. The survival rate indicates that the outcomes were not significantly different between treatments from a 100% success rate. The adding of Spirulina sp. powder increases the brightness of Guppy fish. The brightness color is very important in the Guppy fish farming, because color is the main indicator in ornamental fish. The water has a good quality, with an average temperature of 25.8-26°C and a pH of 7.9-8.0.
Screening of Amylolytic Bacteria from the Intestines of Tilapia (Oreochromis niloticus) Cultivated in Rice Fish Farming in Panembangan Village, Cilongok District, Banyumas nabila, salsa; Kasprijo; Oktavia Kusuma, Rima; Marnani, Sri; Ikhwan Ihtifazhuddin, Muhammad
Journal Of Artha Biological Engineering Vol. 3 No. 2 (2025): Vol 3 No 2 2025
Publisher : PT. Artha GenetikaLab Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62521/p5vczh22

Abstract

Amylolytic bacteria in the digestive tract of tilapia are bacteria that produceamylase enzymes, which function to break down carbohydrates, thereby aidingthe digestive process. The presence of amylolytic bacteria is influenced by feedand the environment. The purpose of this study was to determine the proportionand activity index of amylolytic bacteria in the intestines of tilapia. This studyused an observational method with purposive sampling. Amylolytic bacteriawere isolated from the intestines of tilapia in Rice fish farming Blocks A and E.The successfully isolated bacteria were grown on 1% starch agar medium withan incubation time of 48 hours and observed at 24-hour intervals. Then, severalcharacteristic tests were carried out, including Gram staining, KOH, catalase,and oxidase tests. Based on the results of the study, the proportion of amylolyticbacteria was found in 10 isolates with a proportion of 44% and 12 isolates witha proportion of 48% in the intestines of tilapia from the two blocks. The averageamylolytic activity index obtained from block A was 0.96 ± 0.237, and fromblock E was 1.49 ± 0.501. The largest amylolytic activity index was obtainedin isolate KSA 19 with a value of 1.33 from block A, while from block E, thelargest amylolytic activity index value was 2.6 in isolate KSE 5.
Co-Authors Agung Sudaryono Arif Mahdiana Ekasanti, Anandita Emyliana Listiowati, Emyliana Ferisa Wahyunika Fitriadi, Ren Frentina Murti Sujadi Gultom, Noris Harisam, Taufan Hawari , Abidzar Ikhwan Ihtifazhuddin, Muhammad Junaidi, Teuku Kasprijo Kasprijo, Kasprijo Kusnendar, Rinaldi Kusuma, Baruna Kusuma, Rima Oktavia Lilik Setiyaningsih Mardika, Hanisya Putri Kania Muslih Muslih Nabila, Salsa Nasikhah, Ais Lulu Norman Arie Prayogo Norman Arie Prayogo, Norman Arie Nugrayani, Dewi Nurhabib, Asro Palupi, Mustika Purnama Sukardi Purnama Sukardi R Panji Sulaeman Rakhma, Yulia Nur Setyawan, Agung Cahyo soedibya, petrus Soedibya, Petrus Hary Tjahja Syakuri, Hamdan Taufan Harisam Taufik Budhi Pramono Taufik Budhi Pramono Taufik Budhi Pramono Tjahyo Winanto Tohap Simangunsong Wibowo, Satrio Haryu Wijaya, Rudy Winanto, Tjahyo Wulan, Triana Sri Yansah, Noprie Yohanes Harvinda