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INDONESIA
Jurnal Biologi Tropis
Published by Universitas Mataram
ISSN : 14119587     EISSN : 25497863     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology
Jurnal Biologi Tropis (ISSN Cetak 1411-9587 dan ISSN Online 2549-7863) diterbitkan mulai tahun 2000 dengan frekuensi 2 kali setahun oleh Program Studi Pendidikan Biologi PMIPA FKIP Universitas Mataram, berisi hasil penelitian dan ulasan Ilmiah dalam bidang Biologi Sains.
Arjuna Subject : -
Articles 2,520 Documents
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Isolation of Cellulolytic Bacteria from Oyster Mushroom Baglog Compost Kurnia, Sandra Cahya; Lolita Endang Susilowati; Jaya, Dori Kusuma
Jurnal Biologi Tropis Vol. 24 No. 4 (2024): Oktober - Desember
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i4.7770

Abstract

Oyster mushroom baglog compost is an organic waste rich in cellulose, making it a potential source for the isolation of cellulolytic bacteria. This research aims to isolate cellulolytic bacteria that function as decomposers in Baglog compost. Oyster mushroom baglog compost was used as a substrate, and bacteria were isolated using Nutrient Agar (NA) media and Carboxymethyl Cellulose (CMC) media. Qualitative testing method was done with congo red test. The results of the study successfully characterized 3 (three) potential cellulolytic bacterial isolates characterized by a cellulolytic index of more than 1 (1-1.75) and have the following characteristics: one isolate is milky white with a large round shape, one isolate is white with a large choppy shape, and one isolate is yellow with a medium round shape. These findings indicate that the three isolates have potential as cellulose decomposers and can be utilized in organic waste treatment applications or compost production.
The Effect of Different Types of Black Spanish and Bourbon Red Turkey Eggs on Fertility, Hatching Power, Hatching Loss, and Hatching Weight Nabawi, Ircham; Windyasmara, Ludfia
Jurnal Biologi Tropis Vol. 25 No. 1 (2025): Januari - Maret
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i1.8270

Abstract

This research aims to determine the effect of different types of turkey on fertility, hatchability, hatching loss and egg hatching weight. This research uses the Independent Sample T-Test. Treated with two types of turkey, Black Spanish and Bourbon Red. The parameters observed were fertility, hatchability, hatching loss, and egg hatching weight. The results of this study show that the average fertility of A= 80%, B= 80% shows no significant difference. The average hatchability of A= 58.3%, B= 33.3% shows significant differences. The average hatching loss of A = 36%, B = 32% shows significant differences. The average hatching weight of A=41.2g, B=49.7g shows significant differences. Based on the research results, it can be concluded that two types of turkey (Black Spanish) and (Bourbon Red) have a significant effect on hatchability, hatching loss and hatching weight. However, the two types of turkeys did not differ significantly in terms of egg fertility.
Response of Eight O’clock Flowers (Turnera subulata) to the Short Length of Illumination (Photoperiodism) Sabrina, Mutia Zakiyyatus; Azzahra, Alya Febrina; Reviana, Hanafi; Indriasari, Tyas; Lestari, Pramesti Ayu; Indriawati, Yastin
Jurnal Biologi Tropis Vol. 25 No. 1 (2025): Januari - Maret
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i1.8316

Abstract

Response of Eight O’clock Flowers (Turnera subulata) to the Short Length of Illumination (Photoperiodism).
Resource Conservation of Food Crops, Medicinal Plant and Dyes in Karang Bajo, North Lombok District Jupri, Ahmad; Isrowati, Isrowati; Hidayati, Lilik; Adelia, Adelia; Sintia, Nuraema; Ningsih, Niati; Hidayah, Nurul; Royani, Andhini Dwi Mifta; Wahyudi, Alpan; Wijdan, Ifad
Jurnal Biologi Tropis Vol. 25 No. 1 (2025): Januari - Maret
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i1.8441

Abstract

Karang Bajo Village, located at the foot of Mount Rinjani, has a wealth of cultural and environmental heritage that supports the sustainability of agriculture and the potential of local plants. This study aims to identify and inventory food plants, medicines and natural dyes in Karang Bajo Village, North Lombok Regency. The research method was by conducting in-depth interviews with the determination of informants by random sampling, observation and documentation. The results of the study showed that many types of plants have the potential as sources of food, traditional medicine and natural dyes. Types of food plants that are often consumed by the community are taro, sweet potatoes, cassava and soybeans. Types of medicinal plants used by the community are ginger, galangal, aloe vera and mengkudu. Natural dye plants that are still used are turmeric, dragon fruit, butterfly pea flowers and pandan leaves. Efforts to conserve local plants carried out by the local community show an awareness of the importance of maintaining the local environment and culture. The use and preservation of local plants aims to maintain the sustainability of natural resources and the environment.
Conservation of food, Medicine, and dye crops in Segenter, Sukadana Village, North Lombok Jupri, Ahmad; Isrowati, Isrowati; Hidayati, Lilik; Fira, Nazima; Hakim, Abdurrahman; Nisa, Khaeru; Aqiela, Zulia; Rizki, Danu; Aola, Misrahul; Wiranadi, Lalu Tindih
Jurnal Biologi Tropis Vol. 25 No. 1 (2025): Januari - Maret
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i1.8443

Abstract

Dusun Segenter merupakan salah satu dusun yang memiliki banyak tumbuhan yang berpotensi sebagi bahan pangan, obat dan Pewarna. Masyarakat Dusun Segenter masih menggunakan pengetahuan tradisional dalam memanfaatkan sumberdaya alam disekitar. Penelitian ini bertujuan untuk mengetahui jenis dan cara pelestarian tanaman yang dimanfaatkan sebagai tanaman pangan, obat dan pewarna alami oleh masyarakat Dusun Segenter, Desa Sukadana, Kabupaten Lombok Utara. Metode yang digunakan adalah observasi, dokumentasi dan wawancara mendalam, Teknik pengambilan sampel narsumber dilakukan secara random sampling dengan menggunakan panduan wawancara kepada tokoh dan masyarakat Dusun Segenter. Hasil penelitian menunjukan bahwa tanaman yang dimanfaatkan sebagai tanaman pangan sebanyak 4 spesies yaitu jagung, padi ketan, komak dan Buncis. Tanaman yang dimanfaatkans sebagai tanaman obat sebanyak 3 spesies, terdiri dari kayu jawa, daun jarak dan daun sirih. Tanaman yang dimanfaatkan sebagai pewarna alami yaitu daun kelor. Organ tumbuhan yang dimanfaatkan yaitu buah, biji, daun atau seluruh tanaman. Upaya konservasi yang dilakukan penanaman kembali dan melestarikan kebudayaan yang telah ada.
Analysis of the Effectiveness of Turmeric Flour Supplementation on Quail in the Grower Phase Prastowo, Rizqi Adi; Mulyono, Ali Mursyid Wahyu; Sukaryani, Sri; Husein, Muhammad
Jurnal Biologi Tropis Vol. 25 No. 1 (2025): Januari - Maret
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i1.8457

Abstract

Turmeric (Curcuma domestica Val) contains curcumin, which enhances immunity and aids digestion in livestock. This study aimed to evaluate the effect of turmeric flour supplementation in quail rations on their growth performance. A total of 100 female grower quails (Coturnix-coturnix japonica), aged 3 weeks, were used in a completely randomized design (CRD) with four treatments and five replicates, resulting in 20 experimental units. The treatments included P0 (control, 0% turmeric flour), P1 (0.05% turmeric flour), P2 (0.1% turmeric flour), and P3 (0.15% turmeric flour). The study lasted 14 days, from 21 to 34 days of age. Observed variables included body weight gain, feed intake, and feed conversion ratio (FCR). Results indicated that turmeric flour supplementation at 0.05%–0.15% had no significant effect on quail performance. It is concluded that turmeric flour supplementation up to 0.15% does not enhance quail growth. Further studies are recommended to investigate its effects over a longer period or different growth phases.
Antibacterial Activity Test of Sapodilia Leaf Extract (Manilkara zapota) Against Escherichia coli Bacteria Rahmawati, Rizka Dwi; Faisal; Ramadhan, Majida
Jurnal Biologi Tropis Vol. 25 No. 1 (2025): Januari - Maret
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i1.8557

Abstract

Antibacterial refers to a substance or compound capable of hindering bacterial growth or eradicating bacteria by affecting the permeability of harmful microbes, particularly those harmful to humans. Leaves from the sapodilla tree (Manilkara zapota) contain secondary metabolites like tannins, flavonoids and saponins. The goal of this research is to evaluate the antibacterial properties of sapodilla leaf extract in slowing down the proliferation of Escherichia coli bacteria and to identify the concentration of sapodilla leaf extract that effectively inhibits the growth of Escherichia coli. The investigation employed the well diffusion technique with three repetitions. Data analysis was conducted using the One Way ANOVA test. Findings in this study indicated that the sample or treatment displayed a significance value las than 0,05, suggesting a notable difference among sample types in relation to the diameter of the clear zone, and that the concentration also showed a significance value less than 0,05, indicating a significant difference related to the concentration on the results of the clear zone diameter. The findings from this studys suggest that the greatest antibacterial efficacy was observed at concentration of 100%.
The Knowledge Level of Elderly in Karang Taliwang Village and the Incidence of Low Back Pain in 2025 Lioni, Ni Kadek; Wedayani, Anak Agung Ayu Niti; Purnaning, Dyah; Alaydrus, Mukaddam
Jurnal Biologi Tropis Vol. 25 No. 1 (2025): Januari - Maret
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i1.8571

Abstract

Low Back Pain (LBP) is a prevalent musculoskeletal problem worldwide, particularly among the elderly population. This study aims to analyze the relationship between the level of knowledge among elderly individuals in Karang Taliwang Village and the incidence of LBP. A quantitative approach with a cross-sectional design was employed, using an ordinal scale to measure knowledge levels and a nominal scale for LBP incidence. The results indicate a significant relationship between knowledge levels and LBP incidence, where elderly individuals with lower knowledge levels tend to experience LBP more frequently. This study concludes that enhancing education on LBP risk factors and prevention is essential for reducing its prevalence among the elderly. The scientific implication of this study highlights the need for evidence-based educational interventions to lower LBP prevalence and improve the quality of life among older adults.
Utilization of Pregnant Mare Serum Gonadotrophin (PMSG) for Superovulation in Earthworm (Lumbricus rubellus) Cocoon Production Merta, I Wayan; Kusmiyati, Kusmiyati
Jurnal Biologi Tropis Vol. 25 No. 1 (2025): Januari - Maret
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i1.8584

Abstract

Earthworms (Lumbricus rubellus) belong to the phylum Annelida, class Clitellata, order Haplotaxida, family Lumbricidae, and genus Lumbricus. They thrive in loose and moist soil habitats. This species is commonly used as animal feed due to its high protein content, which is 65% higher than that of mammalian meat and 50% more than that of fish. To meet the increasing demand for earthworms as livestock and fish feed, their cultivation and production need to be enhanced. One method to boost earthworm production is by manipulating their reproduction through superovulation using Pregnant Mare Serum Gonadotrophin (PMSG). PMSG is a hormone produced by the chorionic cups of pregnant mares and has biological effects similar to Follicle-Stimulating Hormone (FSH) and minor Luteinizing Hormone (LH) activity. This study used a completely randomized design consisting of four groups: the control group (K0) without PMSG treatment, treatment group 1 (K1) receiving 200 IU PMSG dissolved in 100 ml of distilled water, treatment group 2 (K2) receiving 250 IU PMSG dissolved in 100 ml of distilled water, and treatment group 3 (K3) receiving 300 IU PMSG dissolved in 100 ml of distilled water. The treatment was applied by immersing the earthworms in the solution for 2 minutes. Each treatment group contained 10 earthworms and was replicated 10 times. Data were analyzed using one-way ANOVA at a 5% significance level, followed by the Least Significant Difference (LSD) test. The results of this study indicate that the administration of Pregnant Mare Serum Gonadotrophin for superovulation significantly increases cocoon production in Lumbricus rubellus.
Antibacterial Efectiveness Test of Basil Leaf Ethanol Extract (Ocinum sanctum L) Against Streptococcus pneumoniae ATCC 6301. Khasanah, Barhoroh Nurul; Silviani, Yusianti
Jurnal Biologi Tropis Vol. 25 No. 1 (2025): Januari - Maret
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i1.8601

Abstract

Basil leaves, which include flavonoids, alkaloids, saponins, tannins, and phenols, are one of the herbal plants that may be used as an antibiotic. We set out to see whether our hypothesis that an ethanol extract of basil leaves inhibited the development of Streptococcus pneumoniae ATCC 6301 bacteria would hold water. Methods from descriptive experimental research are employed in this work. As part of its Bacteriology Laboratory, the National College of Health Sciences carried out the investigation. Quantitative sampling is the method employed. Foliage picked fresh from a basil field in Klaten's Jogonalan neighborhood. Powdered basil leaves were isolated by maceration with 96% ethanol. A series of concentrations of 20%, 40%, 60%, 80%, and 100% DMSO were subsequently applied to the extract. A Kirby-Bauer assay for determining antimicrobial efficacy. Findings showed that an extract from basil leaves was antibacterial against the strain of Streptococcus pneumoniae ATCC 6301. On average, the inhibition zone diameter for basil leaf extract at 0%,40%,60%,80%, and 100% was 10.4 mm, 10.8 mm, 11.5 mm, 11.9 mm, and 13.0 mm, respectively. A 13.0 mm bland zone was generated by the maximum effective concentration of 100% in inhibiting Streptococcus pneumoniae ATCC 6301. No matter the dose, the antibacterial effects of basil leaf extract (Ocimum x africanum Lour) were able to suppress the growth of Streptococcus pneumoniae ATCC 6301. able to block 13.0 mm. C.

Page 177 of 252 | Total Record : 2520

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