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All Journal Jurnal Akuakultur Indonesia ILMU KELAUTAN: Indonesian Journal of Marine Sciences Journal of Environmental Engineering and Sustainable Technology Indonesian Aquaculture Journal Jurnal Riset Akuakultur Journal of Aquaculture and Fish Health Jurnal Abdi Insani Buletin Poltanesa Jurnal MAIYAH
Soedibya, Petrus Hary Tjahja
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Journal : Journal of Aquaculture and Fish Health

 1 
Effect of Additional Dried Tubifex sp. in Commercial Feed Against Color Intensity of Guppy (Poecilia reticulata) Nurjihan, Haniah Istiqomah; Kasprijo, Kasprijo; Muslih, Muslih; Soedibya, Petrus Hary Tjahja; Fitriadi, Ren; Esa, Yuzine
Journal of Aquaculture and Fish Health Vol. 13 No. 2 (2024): JAFH Vol. 13 No. 2 June 2024
Publisher : Department of Aquaculture

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jafh.v13i2.39061

Abstract

Guppy fish (Poecilia reticulata) is a type of ornamental fish that is in great demand, because of its small size and beautiful color. The color of ornamental fish will generally fade, due to a lack of carotenoids in their feed. The purpose of this study was to determine the effect of giving Tubifex sp. in commercial feed to increase the color intensity of guppy fish and the best dose of Tubifex sp. The test fish used were male guppy fish strain HB Red. This study used a completely randomized design (CRD) method with five treatments and three replications, that is commercial feed with the addition of Tubifex sp. with doses of 0% (P1), 2% (P2), 4% (P3), 6% (P4), and 8% (P5). Parameters observed were color intensity (chroma value), survival, and water quality. Addition of Tubifex sp. in commercial feed gave the effect with the highest yield on P5 at a dose of 8%, with an increase in color intensity (chroma value) of 4,21±0,25d. At P1 it gave an increase of 1,19±0,02a, P2 was 1,34±0,04a, P3 was 1,81±0,21b, and P4 was 2,88±0,18c. So, the best treatment is P5 (8%). Survival showed the results were not significantly different, that is 100%. Water quality is included in the tolerance limit of fish with the results of temperature 26,6 – 27,4°C, pH 7,4 – 7,9, and DO 6,2 – 7,7 mg/L.
The Effect of Cultivation Techniques in The Dry and Rainy Seasons on The Quality of The Seaweed Caulerpa racemosa Darmawati, Darmawati; Soedibya, Petrus Hary Tjahja; Anwar, Asni; Murni, Murni; Tang, Beddu
Journal of Aquaculture and Fish Health Vol. 13 No. 3 (2024): JAFH Vol. 13 No. 3 September 2024
Publisher : Department of Aquaculture

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jafh.v13i3.54784

Abstract

The seaweed Caulerpa racemosa has great potential to be developed because it has economic value and potential as a functional food. This seaweed contains nutrients, including protein, carbohydrates, polyunsaturated fatty acids, fiber minerals, and antioxidants. The availability of seaweed is still very dependent on nature and has not been appropriately cultivated. The planting season and appropriate cultivation methods will influence seaweed's quality/nutritional content. This research aims to analyze the nutritional content of seaweed C. racemosa cultivated in different growing seasons. The research method used a floating raft system with a completely randomized design and a factorial pattern carried out in two seasons, namely the dry and rainy seasons. Proximate analysis was carried out to determine the nutritional composition of seaweed C. racemosa, including protein, crude fiber, water, ash, fat, and carbohydrate (NFE). Next, it was analyzed using ANOVA with a further test with Tukey. The research results showed differences in the nutritional composition of seaweed C. racemosa from each treatment cultivated in the dry and rainy seasons. The nutritional composition of seaweed C. racemosa best treatment is found in the plant spacing of 30 cm with a depth of 50 cm in the dry season with the nutritional content namely protein (13.8%), NFE (20.75%), crude fiber (15.71%), a fluctuating fat content of 0.16-1.42%, highest ash (34.69%), water content (35%), moderate in the rainy season namely: protein (10.8%), BETN (10.78%), crude fiber (12.33%), fat content fluctuates (0.18-1.06%), highest ash (30.21%), water content (41.01%).
Activity of Cellulolytic Bacteria Isolated From The Digestive Tract Of Jerbung Shrimp (Feneus marguensis) Fitriadi, Ren; Sabdaningsih, Aninditia; Budi Prayitno, Slamet; Soedibya, Petrus Hary Tjahja; Sarjito, Sarjito; Subagiyo, Subagiyo
Journal of Aquaculture and Fish Health Vol. 14 No. 1 (2025): JAFH Vol. 14 No. 1 February 2025
Publisher : Department of Aquaculture

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jafh.v14i1.66897

Abstract

Bacteria found in the digestive tract of shrimp mostly play a major role in nutrient absorption. One of the nutritional contents that is quite difficult for shrimp to absorb is fiber. Bacteria that can degrade fiber content are known as cellulolytic bacteria. This study aimed to determine the activity index of cellulolytic bacteria found in the digestive tract of shrimp. The research method includes sampling shrimp with three different categories based on average length and weight, divided into three categories such as large (22.2 g ± 87.3 cm), medium (17.1 g ± 36.7 cm), and small (13.4 g ± 18.8 cm) taken from the north coast waters of Pemalang and the south coast waters of Cilacap. Furthermore, bacterial isolation, morphological observation, calculation of bacterial abundance, and testing of cellulolytic activity were carried out. The results showed that 150 bacteria were successfully isolated from both locations at different sizes and a total of 68 bacterial isolates had cellulolytic activity. There were 22 potential isolates from each coastal water that had a great cellulolytic activity index, ranging from 1.4 to 7.0. Moreover, the most potential activities were performed by 8 bacterial isolates encoded with GM.1, GM.2, GM.3, GM.4, GM.5, GM.6, GM.7, and GM.8 with a range of cellulolytic index obtained ranging from 3.0-7.0. The high activity index of the cellulolytic bacteria obtained is a fairly promising potential as a probiotic candidate that plays a role in degrading fiber in food found in the digestive tract of shrimp so that it can accelerate its growth.
Co-Authors Adinda Kurnia Putri Aminuddin, Jamrud Aninditia Sabdaningsih Anwar, Asni Darmawati Darmawati Ekasanti, Anandita Emyliana Listiowati, Emyliana Esa, Yuzine Fikriyya, Nabela Fitriadi, Ren Hastuti, Dewi Wisudyanti Budi Heri Ariadi Irwan Hidayatullah, Irwan Isdy Sulistyo Jefri Anjaini Kasprijo, Kasprijo Kusuma, Rima Oktavia Linayati, Linayati Liu, Chun-Hung Murni Murni Muslih Muslih Nugrayani, Dewi Nuning Vita Hidayati Nurjihan, Haniah Istiqomah Palupi, Mustika Purnama Sukardi Putri, Desta Fatma Raharja, Ferry Cahya Rattanavichai, Wutti Riviani Riviani, Riviani Rosi Widarawati RR. Ella Evrita Hestiandari Saputra, Dian Rizqi Sarjito - Shokib, Maskhiyatus slamet budi prayitno Sri Marnani Subagiyo Subagiyo Sukiyati, Eny Syakuri, Hamdan Tang, Beddu Taufik Budhi Pramono Tohap Simangunsong Tohir Tohir, Tohir Tri Yusufi Mardiana Vita, Tika Ayunda Wibowo, Mahbub Fuad Wibowo, Satrio Haryu Wijaya, Rudy