Article Per Year (5 Year)
p-Index From 2020 - 2025
0
P-Index
This Author published in this journals
All Journal Journal of Aquatropica Asia
Denny Syaputra
Bangka Belitung University
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
GAMBARAN DARAH IKAN NILA (Oreochromis niloticus) YANG DIBERI PAKAN TERFORTIFIKASI EKSTRAK CAIR DAUN SALAM (Syzygium polyanthum) Wahyu Dwi Putranto; Denny Syaputra; Eva Prasetiyono
Journal of Aquatropica Asia Vol 4 No 2 (2019): Journal of Aquatropica Asia
Publisher : Jurusan Akuakultur, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/aquatropica.v4i2.2222

Abstract

Tilapia (Oreochromis niloticus) is populer as resistant fish to environmental changes. Cultivating fish with a high stocking density can cause a decrease in water quality. It has an impact on susceptibility to disease due to decreased water quality. Immunostimulants from Phyto-pharmacy are needed to improve the non-specific immune system of fish from natural ingredients. Bay leaves (Syzigium polyanthum) have the potential to be used as an immunostimulant in fish. This study aimed to evaluate the extract of Salam leaves fortified in feed against the blood profile of Tilapia. The research was carried out in April - May 2018 using a completely randomized design (CRD) with 4 treatments and 3 replications. Salam leaf extract through feed affects the increase of leucocytes and blood erythrocytes of tilapia but does not affect hemoglobin levels and hematocrit levels. Doses of 2x10-2 g mL-1 increased fish blood leukocytes on day 21st to be the best treatment in this study.
MASKULINISASI IKAN NILA (Oreochromis niloticus) MENGGUNAKAN EKSTRAK CABE JAWA (Piper retrofractum) MELALUI PERENDAMAN LARVA Hafizhotur Rohmaniah; Denny Syaputra; Ahmad Fahrul Syarif
Journal of Aquatropica Asia Vol 4 No 2 (2019): Journal of Aquatropica Asia
Publisher : Jurusan Akuakultur, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/aquatropica.v4i2.2243

Abstract

The aimed of this study was to evaluate the effectiveness of java long pepper extract in the increasing of the percentage of males nile tilapia. The design of experiment was completely randomized design with 5 treatments i.e : A (negative control), B (1,99 mg L-1), C (3,99 mg L-1), D (5,99 mg L-1) and positive control (20 mg L-1 17α-metiltestosteron) with three replicates per level of treatment. Immersion of 10-day-old larvae for 24 hours with 50 larvae in 10 L medium of treatments and cultivated for 60 days and identification of gender using the acetocarmin method. The results showed that java long pepper extract was effective to increase the percentage of males with dose of 1,99 mg L-1 (81,78±6,81%), 3,99 mg L-1 (79,00±2,99%) and 5,99 mg L-1 (87,42±4,85%) while the negative control 39,23±7,74%. Java long pepper extract dose of 5,99 mg L-1 were not significantly different with the treatment of 17α-metiltestosteron i.e : 91,71±3,93%. Percentage of survival rate 47.33±3.06% to 53.33±8.08%, specific growth rate 3,14±0,15% to 3,40±0,08%, absolute weight growth 1.97±0.59 g to 3.07±0.38 g and absolute length growth of 3.73±0.55 cm to 3.95±0.16 cm. Java long pepper extract gives a significant effects to the spesific growth rate and absolute weight growth. Treatment A, B, C, D and E had no effect on survival rate and the absolute length growth of nile tilapia during 60 days cultivation period.
Co-Authors Ahmad Fahrul Syarif Eva Prasetiyono Hafizhotur Rohmaniah Wahyu Dwi Putranto