# The effect of Melastoma malabathricum leaf extract on growth and spawning of blue swimming crab (Portunus pelagicus)
> Alam N.

URL kanonis: https://discover.unhas.ac.id/publications/the-effect-of-melastoma-malabathricum-leaf-extract-on-growth-and-spawning-of-blu
Jurnal / Konferensi: Iop Conference Series Earth and Environmental Science
Tahun terbit: 2019
DOI: https://doi.org/10.1088/1755-1315/370/1/012029
ISSN: 17551307
Citations: 8

## Authors
- Alam N.

## Abstract
Abstract The aim of this study was to evaluate the effect of Melastoma malabathricum leaf extract on growth and spawning of the blue swimming crab Portunus pelagicus . This research was conducted from March to May 2019 at the Hasanuddin University mini hatchery in Barru Regency, South Sulawesi Province, Indonesia. The study used five treatment doses of M malabathricum leaf extract: 0, 5, 10, 15, and 20μg/g of female crab body weight. The extract was dissolved in water and an aliquot of 0.1 mL was injected into each crab. The results showed that there was a decrease in growth in all treatments within the first 10 days after injection, but an increase after the 20th day. Doses of 15 and 20 ug/g resulted in the highest spawning rate, ie 100% after 30 days. Crabs with no extract treatment had the lowest spawning rate, which was only 33%. The conclusion of this study is that an appropriate dose of M. malabathricum leaf extract can be used to stimulate spawning of Portunus pelagicus.

## Keywords
- Portunus pelagicus
- Hatchery
- Biology
- Fishery
- Body weight
- Animal science
- Botany
- Fish <Actinopterygii>
- Crustacean
- Endocrinology

---
Sumber: Discover Unhas — RIMS Universitas Hasanuddin.
Saat mengutip, gunakan DOI bila tersedia atau URL kanonis di atas.