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Journal : Pena : Jurnal Ilmu Pengetahuan dan Teknologi

PENGARUH PENAMBAHAN PROBIOTIK DYS SYNBIOTIC DENGAN DOSIS YANG BERBEDA PADA PAKAN BUATAN TERHADAP PERTUMBUHAN UDANG VANNAME (Lithopenaus Vannamei) Edho Pawenang; M. Bahrus Syakirin; Benny Diah Madusari
Pena Jurnal Ilmu Pengetahuan Dan Teknologi Vol 36, No 1 (2022): PENA MARET 2022
Publisher : LPPM Universitas Pekalongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31941/jurnalpena.v36i1.1913

Abstract

This research was conducted on 14 December - 14 January 2021 at the Brackish Water Cultivation Laboratory, Faculty of Fisheries, Pekalongan University. The purpose of this study was to determine the best dose for absolute biomass growth, and survival of vannamei shrimp (Lithopenaus vannamei). This study used a completely randomized design (CRD) with 4 treatments and 3 replications. The treatments used were: A (feeding without probiotics), B (giving dys synbiotic probiotics at a dose of 10 ml / kg of feed), C (giving dys synbiotic probiotics at a dose of 15 ml / kg of feed), D (giving dys synbiotic probiotics with dose of 20 ml / kg of feed). The results showed that the highest average growth was obtained in treatment D with a dose of dys synbiotic probiotic 20 ml / kg of feed, the increase in biomass reached 2.83 gr. Meanwhile, the lowest growth was obtained in treatment A without probiotics resulting in an average growth of 1.55 g / kg of feed. The results of the analysis of variance on the growth of vannamei shrimp biomass were F count greater than F table 1% and 5%. The range of water temperature during the study was between 28-29OC, water pH ranged from 7.7-7.8 and salinity ranged from 20 ppt. Water quality conditions during the study were in the proper range for vannamei shrimp life
EFISIENSI PERTUMBUHAN RUMPUT LAUT Caulerpa sp. DENGAN PERBEDAAN JARAK TANAM DI TAMBAK CAGE CULTURE Firman Ardiansyah; Hadi Pranggono; Benny Diah Madusari
Pena Jurnal Ilmu Pengetahuan Dan Teknologi Vol 34, No 2 (2020): PENA SEPTEMBER 2020
Publisher : LPPM Universitas Pekalongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31941/jurnalpena.v34i2.1232

Abstract

The objectives of this study are to understand the effect of planting space towardsCaulerpa spseaweedgrowth, and to understand the best planting space towards Caulerpa sp seaweed growth. This research did on October until December 2018 in thefishpond of Brackish and Sea Aquaculture Laboratory PekalonganUniversity. This research used complete randomized design (CRD) which consists of three treatment and three repetition. The treatment that applied are 15 cm, 30 cm, and 45 cm of planting space. The Parameter that observed was an absolute weight growth, and water quality. Based on the result of the research showed that the highest absolute weight growth obtained on the treatment of 30 cm planting space that is 73,23gr, followed bythetreatment of 45 cm planting space that is 58,37 gr, and the last, the treatment of 15 cm planting space that is 52,43 gr. The water quality of maintenance media are, salinity ranges from 25-30 ppt, temperature ranges 29-31oC, DO ranges from 3-6, 7 mg/L, PH ranges from (6-8,5), and the brightness is 30 cm. The quality of water during research is good enough to support Caulerpa spseaweed growth.