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Manilkara: Journal of Bioscience
Published by Universitas Terbuka
ISSN : -     EISSN : 29640164     DOI : https://doi.org/10.33830/manilkara
Core Subject : Health, Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology Medicine & Pharmacology Neuroscience Veterinary
MANILKARA: Journal of Bioscience is designed to share research articles from academics, researchers, practitioners, and students on research in various aspects of biology and its applications. Papers for publication in this journal are selected through proper peer-review to ensure quality, originality, suitability, and legibility. This journal covers various disciplines in biology (microbiology, genetics, biochemistry, physiology, ecology, taxonomy, structure and development of animals/plants, and evolution); Biotechnology; and applied science in solving problems in the fields of biology (biomedical, agricultural, industrial, ethnobiological, and environmental). The journal is published biannually on February and August.
Arjuna Subject : Umum - Umum
Articles 5 Documents
 1 
Search results for , issue "Vol 2 No 1 (2023): Agustus" : 5 Documents clear
Pengaruh Makanan terhadap Melanisme Bulu pada Bagian Perut Burung Bondol Jawa (Lonchura Leucogastroides) Rema Marninda Zahara
MANILKARA: Journal of Bioscience Vol 2 No 1 (2023): Agustus
Publisher : LPPM Universitas Terbuka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33830/manilkara.v2i1.4615.2023

Abstract

In the wild the Javanese bondol bird (Lonchura leucogastroides) is known as a pest for farmers because it often eats rice grains and seeds that are growing in the fields. If the bondol bird is kept in the wild until it becomes tame, it is predicted that changes in the type of food consumed will affect the color of the hairs that grow on its body parts. The aim of this study was to observe and describe the color changes that occur in the feathers of bondol birds due to the type of food consumed in the form of millet. The research method was carried out in a descriptive qualitative manner. The results showed that giving millet as food for Javanese bondol birds had an impact on the occurrence of changes in the color of the feathers (melanism) on the stomach to black-brown. In fact, generally in the stomach is white.
Spesimen Capung (Odonata) Koleksi Kebun Raya Bogor: Proses Pembuatan dan Identifikasi Rachmatiyah, Rina; Pungki Lupiyaningdyah
MANILKARA: Journal of Bioscience Vol 2 No 1 (2023): Agustus
Publisher : LPPM Universitas Terbuka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33830/manilkara.v2i1.6076.2023

Abstract

Dragonfly (Odonata) specimens that have been collected for 76 years (1929-2005) by the Bogor Botanical Gardens (BBG) and kept at the Zoologicum Bogoriense Museum (ZBM) are interesting to study because quite a number of these specimens have not been identified at the species taxon level. The research objective was to record and identify dragonfly species that once lived and were found flying in the BBG area and have become ZBM specimen collections. The research method used is by sorting, grouping, and identifying specimen collections. The identification results of dragonfly specimen collection showed that there were 1,357 specimens consisting of 7 families and 25 species. The most collected family was Libellulidae. The most collected species was Agriocnemis femina (311 specimens), followed by Crocothemis servilia (245 specimens), and Brachythemis contaminata (217 specimens).  The year 1995 was the year with the highest number of specimens collected at 1,137 specimens. Garuda Park Pond, Building 9 Pond, Palace Pond, and inside the botanical garden area were the locations with the most dragonfly encounters.
Keberagaman Character state Daun Litsea (Lauraceae) Koleksi Cianjur Herbarium Hortus Botanicus Tjibodensis Suherman, Dadang
MANILKARA: Journal of Bioscience Vol 2 No 1 (2023): Agustus
Publisher : LPPM Universitas Terbuka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33830/manilkara.v2i1.6329.2023

Abstract

Herbarium serves as a storage place for plants that have been preserved, both in the form of dry and wet preserves. The specimen material is useful in determining the taxonomic status or identity of a plant. Litsea is one of the genera of the Lauraceae tribe (kamper-kamperan) which has similar leaf morphological characters among the species in it or even with other genera that are still in one tribe. The study aims to explain the variation of leaf morphological characters of species of Litsea clan members derived from herbarium specimens of the Cianjur Herbarium Hortus Botanicus Tjibodensis (CHTJ) collection. The research method uses direct observation of specimens in a careful, detailed, high concentration, and still refer to the information data contained in the herbarium sheet. The results showed that the petiole length ranged from 0.7 cm to 3 cm, the petiole surface was hairy (glabrescent) and glabrous. Species of the genus Litsea have leaf shape (circumscriptio): oval (ovalis/ellipticus), elongated (oblongus), and lobed (lanceolatus); The leaf tip (apex folii) is pointed (acutus) in 5 species, and tapered (acuminatus) in 4 species, obtuse (obtusus) in 3 species; the leaf base (base folii) is rounded (rotundatus) in 4 species, obtuse (obtusus) in 5 species, and pointed (acutus) in 3 species; while the arrangement of leaf bones (nervatio or venation) is pinnate (penninervis). The species also have flat leaf margins (margo folii) (integer), with the leaf blade (intervenium) being paper-like and parchment-like, the leaf color is green, and the leaf surface has pilosus.
Peranan Kombinasi Pakan Limbah Organik terhadap Laju Pertumbuhan dan Kandungan Nutrisi Larva Lalat Tentara Hitam (Hermetia Illucens) Ayuningrum, Sri Utami; Putra, Ramadhani Eka
MANILKARA: Journal of Bioscience Vol 2 No 1 (2023): Agustus
Publisher : LPPM Universitas Terbuka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33830/manilkara.v2i1.6530.2023

Abstract

The amount of organic waste is increasing along with the increase in population. The problem of organic waste can be overcome by the bioconversion method using Black Soldier Fly (BSF) Hermetia illucens larvae. This study aims to analyze the effect of combination feed with differences on the major nutrient content on survival rate, growth rate, feed consumption, Waster Reduction Index (WRI), Efficiency of Conversion of Digested Feed (ECDF), and nutritional content of BSF larvae. The feed given are  fish offal (high in fat), tofu pulp (high in protein), and banana peel (high in hemicelulose) with a ratio of 2:1:1, 1:2:1, 1:1:2, and 1:1:1. Feed combination 1:1:2 has the highest value of growth rate (3.47 mg/larva/day), feed consumption (25,76%), WRI (0,42%/day), ECDF (12.91%) and survival rate (81,38%). BSF larvae is potential to be used as alternative animal feed because they contain high levels of protein.
Profil Ekosistem Terumbu Karang di Intertidal Pantai Balekambang, Kabupaten Malang, Jawa Timur Alwan Alauddin Syah
MANILKARA: Journal of Bioscience Vol 2 No 1 (2023): Agustus
Publisher : LPPM Universitas Terbuka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33830/manilkara.v2i1.5685.2023

Abstract

Concerns and vulnerabilities from the impact of rapid infrastructure growth in the Balekambang Beach area, Malang Regency can trigger damage to the existing coral reef ecosystem, especially in the intertidal zone. This is possible because it is not followed by awareness and understanding wisely by the surrounding community towards environmental conservation. The study aimed to determine the status of coral reefs, identify living corals, and measure the value of coral species diversity in the intertidal zone of Balekambang Beach, Malang Regency, East Java. The research used survey method with the help of Underwater Photo Transect (UPT) tool, the data was processed with Coral Point Count with Excel Extension (CPCe) software. The results showed that the percentage of coral cover varied in the range of 9.13%-21.53%, so it was included in the damaged category with poor sub-category. Identification of coral species at station 1 (BLCK01) was Favites spp., Gonioastrea spp., and Galaxea sp., at station 2 (BLCK02) found Favites spp., Gonioastrea spp., Platygyra sp.. Pocillopora spesicosa, and Porites sp. At station 3 (BLCK03), coral species Favites spp., Gonioastrea spp., Platygyra sp., Acropora spp., Pocillopra spesicosa, and Porites sp. The value of coral species diversity on this beach is included in the low category, namely 1.71-1.97.

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