7 research outputs found
Kandungan Klorofil a dan Karotenoid Rumput Laut Kappaphycus Alvarezii yang Dibudidayakan pada Kedalaman Berbeda
No full textTujuan dari penelitian ini adalah untuk menguraikan dampak pengobatan kedalaman budidaya yang berbeda terhadap klorofil dan karotenoid isi rumput laut K. alvarezii. Penelitian ini terdiri dari lima perlakuan dan setiap perlakuan terdiri dari tiga ulangan, akibatnya, ada 15 unit eksperimental. Rumput laut digantung dengan metode vertikal acak di kedalaman budidaya yang berbeda, mis 20 cm, 100 cm, 200 cm dan 400 cm. Analisis varians dilakukan pada tingkat 95%. Hasil penelitian menunjukkan bahwa kedalaman budidaya tidak signifikan defferent terhadap klorofil dan konten caratenoid. Klorofil dan karotenoid konten relatif tinggi di kedalaman 100 cm (0,013 mg / g-1 dan 0299 mg / g-1) dan terendah di kedalaman 20 cm (0.006 mg / g-1 dan 0163 mg / g-1 ).Kata kunci: klorofil a, karotenoid. kedalaman budidaya, rumput lautThe objective of the research was to elaborate the treatment impact of the different cultivation depths towards the chlorophyll a and carotenoid content of the seaweeds K. alvarezii. The research consisted of five treatments and each treatment consisted of three replications, consequently, there were 15 experimental units. The seaweeds were hanged by a random vertical method in the different cultivation depths, i.e 20 cm, 100 cm, 200 cm and 400 cm. Variance analysis was carried out on the 95% level. The results of the research indicates that the cultivation depths are not significantly defferent towards chlorophyll a and caratenoid content. The chlorophyll a and carotenoid content is relatively high in depth 100 cm (0,013 mg/g-1 and 0,299 mg/g-1) and the lowest is in depth 20 cm (0,006 mg/g-1 and 0,163 mg/g-1).Keywords: chlorophyll a, carotenoid. cultivation depths, Seawee
Intrapopulated Genetic Variation Of The Blue Swimming Crab (Portunus Pelagicus) From Kaimana, West Papua Indonesia Based On Cytochrome C Oxidase Subunit I (Co1) Gene Sequence
No full textThe first step to establishing appropriate broodstock management and conservation programs and to avoid decreasing genetic variability in this selective breeding program is the development of molecular genetic markers that can be used for evaluation of genetic stock determinations in gene flow rates. However, morphologically it is rather difficult to distinguish between one individual and another. The purpose of this study was to analyze genetic variation to prove differences in intrapopulated crabs. Small crab samples were collected from the district. Kaimana, West Papua. Morphological analysis was carried out by looking at differences in the color and pattern of white spots between one individual and another. The isolation of the crab CO1 gene was carried out by analyzing each individual after grouping it based on morphology. The results of the morphological analysis showed that males had seven color patterns and white carapace patterns while females had five color patterns and white spots on the carapace. However, there is little difference between morphology and genetics, especially in females, where the female is genetically divided into only two major groups. This indicates that there is information on phylogenetic relationships between individuals. The white spot on the carapace is genetically influenced so that it can be used to identify species or varieties, while the carapace color has not been shown to be influenced by the CO1 gene
Xanthophore Distribution of Nemo (Amphiprion ocellaris) Skin Based on various Concentrations of Carotenoid Sources
No full textAbstract
The decreased color intensity of Nemo is related to the amount of carotenoid concentration in the xanthophore of Nemo's skin. Therefore, efforts are needed to maintain stable carotenoid production. Tomato is one of the most abundant carotenoid producers. The utilization of carotenoids can maintain the morphological color of aquatic organisms. This study aimed to analyze the effect of carotenoid compounds on total carotenoid content, the size, and distribution of xanthophores on Nemo skin. A total of 60 Nemo with an average initial weight of 0.84±0.14 g and an average length of 2.95±0.08 cm. The research was conducted using a completely randomized design (CRD), consisting of four carotenoid concentrations in addition to fish pellet, 0%, 0.5%, 1%, and 1.5% with three replications. The results showed that the optimum dose of carotenoid compounds in increasing the total carotenoid content in nemo fish skin is 1.5%. Carotenoids added to the fish feed affected the distribution and maturity of xanthophore. However, it did not affect the size of the xanthophore.
Highlight Research
• Nemo contains three types of pigment cells, namely melanophores, xanthophores, and iridophores.
• Carotenoid supplementation is related to xanthophore in fish skin
• The pigment pattern is determined mainly by the number, size, and distribution of different cell types
• xanthophores were not found in the histology HE (hematoxylin-eosin) staining method in fish skin
Uptake of Nutrients N, P, K Seaweed of Kappaphycus alvarezii (Doty) Were Cultivated in Media with Different Concentrations of BAP
No full textThe results showed that in the first period the cultivation, the highest uptake of T-N (0.13
Alteration of Phagocytic Activity of White Shrimp Litopenaeus vannamei (Boone, 1934) Reared in Isosmotic Salinity and Different Density
No full textEffect of stocking density to assess phagocytic activity changes of white shrimp has been carried out
SUBSTITUSI PAKAN ALAMI DENGAN PAKAN BUATAN TERHADAP PERKEMBANGAN GONAD KEPITING BAKAU (SCYLLA OLIVACEA)
No full textPercobaan dilakukan untuk menentukan substitusi pakan alami dengan pakan buatan yang menghasilkan perkembangan gonad kepiting bakau (Scylla olivacea.) terbaik . Kepiting bakau yang digunakan dalam penelitian ini dalam keadaan belum matang gonad dan berasal dari hasil tangkapan di alam. Rancangan percobaan yang digunakan adalah rancangan acak lengkap, dengan lima perlakuan dan tiga kali ulangan.. Perlakuan pakan terdiri dari 100% pakan alami , 75% pakan alami dan 25 % pakan buatan, 50% pakan alami dan 50% pakan buatan, 25% pakan alami dan 75% pakan buatan serta 100% pakan buatan. Pakan alami terdiri dari 50% ikan layang (Decapterus sp.) dan 50% cumi-cumi (Loligo sp.). Pakan diberikan sebanyak 2 % (dalam bobot kering) biomasa per hari dengan frekuensi pemberian pakan dua kali per hari pada pukul 06.00 dan 18.00. Perkembangan gonad dievaluasi berdasarkan parameter-parameter: (1) indeks kematangan gonad (IKG), (2) persentase induk matang gonad dan (3) laju kematangan gonad. Hasil penelitian ini menunjukkan bahwa perbedaan persentase substitusi pakan alami dengan pakan buatan memberikan respons yang sama (P???0,05) terhadap parameter yang dievaluasi
Penyuluhan Metode Budidaya Rumput Laut di Kel. Kalumeme, Kec. Ujungbulu, Kabupaten Bulukumba
No full textKecamatan Ujungbulu merupakan salah satu sentra rumput laut di Kab. Bulukumba yang memberikan peluang usaha yang sangat baik bagi peningkatan perekonomian keluarga. Keberhasilan budidaya rumput laut sangat dipengaruhi oleh musim, teknik dan metode budidaya yang tepat sehingga dapat memberikan pertumbuhan yang maksimal seperti pola tanam yang sesuai, penerapan metode tali bentang atau long line. Namun dalam perkembangan metode ini, Masih banyak masalah yang dihadapi oleh pembudidaya, seperti bobot awal bibit yang terlalu besar, jumlah bentangan per awal penanaman per areal yang terlalu banyak, dilakukan penanaman awal yang bersamaan dan penggunaan areal budidaya secara bersamaan per kelompok petani budidaya. Melalui program pengabdian kepada masyarakat dosen PS. BDP, maka dilakukan Penyuluhan Metode Budidaya Rumput Laut. Kegiatan ini dilakukan di Kantor Lurah Kalumeme, Kecamatan Ujungbulu, Kabupaten Bulukumba pada Sabtu 26 Oktober 2024. Sebanyak 30 peserta ikut dalam kegiatan ini yang berasal dari Gapoktan, penyuluh dan dari Dinas Perikanan Kab. Bulukumba. Materi penyuluhan yang disampaikan dipahami dengan baik oleh peserta melalui kegiatan diskusi setelah pemaparan materi
