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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 2,562 Documents
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Profitability and Feasibility Analysis of Sand Lobster (Panulirus homarus) Farming in Jerowaru District East Lombok Regency Yuansa Aneswari; Ibrahim Ibrahim; Muhammad Nursan
Jurnal Biologi Tropis Vol. 22 No. 2 (2022): April - June
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.v22i2.3662

Abstract

Jerowaru District is one of the areas in East Lombok Regency which has enormous potential in the aspect of developing lobster cultivation. Especially the cultivation of sand lobster (Panulirus homarus) which is supported by geographical conditions, public interest, and also from the government. This study aims to: (1) analyze the profitability of sand lobster (Panulirus homarus) farming, (2) analyze the feasibility of sand lobster (Panulirus homarus) farming, (3) find out the constraints on sand lobster (Panulirus homarus) farming in Jerowaru District, East Lombok Regency. The method used in this study is a descriptive method with the unit of analysis used is the sand lobster (Panulirus homarus) farming in Jerowaru District, East Lombok Regency. The results showed that: (1) Sand lobster farming in Jerowaru District, East Lombok Regency has a high level of profitability or a high level of profit, the income generated is Rp. 23,189,000 with a total production of Rp. 14,015,000 so that the return value is obtained. Of Investment (ROI) of 165.45%. (2) The sand lobster cultivation business in Jerowaru District, East Lombok Regency is feasible because the R/C ratio value obtained is greater than 1 (2.65 > 1) and the B/C ratio is greater than zero (1.65 > 0). (3) Constraints faced by sand lobster respondents in Jerowaru District, East Lombok Regency, namely weather constraints, disease, post-harvest, selling prices, feed, damaged nets and theft.
The Potential of Corn Waste (zea mays L.) as Ruminants Feed in Bolo District, Bima Regency Mastur Mastur; Oscar Yanuarianto; Dedy Supriadin; Ridwan Saedi; Yusuf Akhyar Sutaryono; Sukarne Sukarne
Jurnal Biologi Tropis Vol. 22 No. 2 (2022): April - June
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.v22i2.3682

Abstract

Corn straw as agricultural waste is a source of feed for ruminants which has a high fiber content and still contains good nutritional value and is sufficiently available. Unfortunately, this potency has not been fully utilized by the farmer as animal feed. This condition is found in almost all regions in NTB because we still see a lot of corn straw or corn waste in general, a lot of which is wasted even burned by the community. One of the efforts that need be made so that it can be used as a source of feed is by knowing the production of corn straw and its potential as feed for ruminants in Bolo District, Bima Regency. The research was carried out by survey method by using a questionnaire. The research results showed that the area of ​​maize plants in Bolo District was 4,041.88 hectares with a harvest area of ​​3,024.76 hectares. The production of corn waste consisting of stalks, leaves, husks, cobs and silk was 3,629.66 tons in dry matter. The population of ruminants (cattle, buffalo, goats and sheep) is 10,008 heads with the largest livestock population is the cattle. From the calculation between the amount of corn waste production and the ruminant livestock population in Bolo District, Bima Regency, it can be concluded that corn waste has a high potential as feed, which is 19 percent.
The Effect of Feeding Duck Mie (Innovation in Noodle-shaped Duck Feed) on Income Over Feed Cost Sukarne Sukarne; Muhammad Nursan
Jurnal Biologi Tropis Vol. 22 No. 1 (2022): January - March
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.v22i1.3723

Abstract

Low feed efficiency is often an obstacle in duck farming. Thus, the duck feed in the form of noodles (duck mie) is innovated which resembles earthworms which is the natural food for ducks in their natural habitat (rice fields and swamp areas). The aim of this study was to determine the extent to which the provision of duck mie in the ration affects the productivity of Peking ducks. This research used a completely randomized design (CRD) method with 4 treatments and replicated four times each, the research material in the form of 80 DOD peking ducks with treatment aged 1-7 days given 100% basal formulated feed. Age 8-14 days adapted to 95% basal formulated feed + 5% Duck Mie. Age 15 – 56 days of basal formulated feeding according to treatment T0 = 100% basal formulated feed, T1 = 90% basal formulated feed + 10% Duck Mie, T2 = 80% basal formulated feed + 20% Duck Mie, and T3 = 70% basal formulated feed + 30 % Duck Mie. The research results were analyzed using analysis of variance (ANOVA), then tested using Duncan's Distance Test. The research parameters were feed consumption, daily body weight gain (DBWG), feed efficiency, feed conversion and IOFC (Income Over Feed Cost). Based on the research conducted, it was found that giving Duck Mie in the ration did not have an effect (P<0.05) on consumption, DBWG, feed efficiency and feed conversion, but had a very significant effect on the IOFC value (P>0.01).
Analysis of vegetation structure of urban parks and environmental discomfort index in The City of Mataram Suripto Suripto; H. Ahyadi
Jurnal Biologi Tropis Vol. 22 No. 2 (2022): April - June
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.v22i2.3733

Abstract

The high population growth in Mataram City with the consequence of increasing development has caused a decrease in the area of ​​green open land. Garden parks as part of green open land need to be maintained and evaluated for their vegetation to be able to control the impact of local climate change. This study aims to analyze the vegetation structure of garden parks in Mataram City and assess its ability to reduce the increase in the environmental discomfort index. Vegetation analysis was carried out in six garden parks in Mataram City using the transect-squared method. The observed vegetation variable was the lushness of each vegetation life form. Vegetation data was analysed to produce groups of urban park vegetation structures in Mataram City. Microclimate factors inside and outside the park, which include air temperature and humidity observed on a sunny day according to a two-way line interval design with a direction according to the shape and area of ​​the observed urban park. The data of air temperature and humidity were processed to produce an index of environmental discomfort. The results showed that the six urban parks observed in The City of Mataram were divided into three groups of vegetation structures, namely the form of trees & shrubs (Ampenan Old Town Park, Udayana Garden and Selagalas park), forms of shrubs & trees (Sangkareang Park and Garden of Mayura ) and forms of bushes & shrubs (Malomba Park). The existence of city parks with variations in their vegetation structure in Mataram City does not cause variations in their ability to reduce the discomfort index. All city parks observed in Mataram City have moderate ability in reducing environmental discomfort index. Most of the areas outside the city parks in Mataram City have a class c of discomfort index and only Mayura Park, Malomba Park and Selagalas Park are known to reduce the discomfort class, namely from class c (discomfort felt by >50% of the population) outside the park to class b (discomfort felt by <50% of population) in the park.
The effect of Lemongrass (Cymbopogon nardus) Extract in inhibiting Bread Fungal Growth, Aspergilus Oyizae Using a combination of N-Hexane-Ethanol Solvent Priyo Hartanto; Prapti Sedijani; Lalu Zulkifli; Miko Erniarti
Jurnal Biologi Tropis Vol. 22 No. 1 (2022): January - March
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.v22i1.3736

Abstract

The purpose of this study was to determine the effect of lemongrass extract (Cymbopogon nardus) in inhibiting the growth of the bread fungus Aspergillus oryzae by using a combination of lemongrass extract with n-hexane as a solvent. This type of research is experimental research. The population in this study were all types of mushrooms isolated from bread. The sample used was the fungus Aspergillus oryzae isolated from bread. Lemongrass extraction was carried out by maceration method with n-hexane and ethanol as solvents separately, followed by mixing the two extracts with a combination of n-hexane extract: ethanol extract respectively as follows: 1:1; 2:1 and 1:2 before evaporation. The inhibition test of lemongrass extract against the fungus Aspergillus oryzae was carried out by growing the fungus on PDA media which had been supplemented with lemongrass extract with a concentration of 0.6%; 0.8% and 1%. Data were analyzed using the ANOVA test at a significance level of 95%, followed by the Honest Significant Difference (BNJ) test. The results showed that the combination of n-hexane extract-ethanol extract 1:1 and 1:2 showed low inhibition at all concentrations tested, while the combination 1:2 with 1% lemongrass extract concentration was the best combination in inhibiting the growth of the fungus Aspergillus oryzae ( 1/4 control mycelium colony diameter) and showed 74% inhibitory activity (strong inhibitory category). From the research, it was concluded that lemongrass extract using a combination of ethanol solvents, N-Hexane extract - ethanol extract with a 1:2 combination applied with a concentration of 1% inhibited the growth of the fungus Aspergillus oryzae in the category of strong inhibition, with an inhibitory activity of 74%.
Ethnobotanical Study of Tumpek Wariga Tradition in Hindu Community of Jagaraga Village, West Lombok Regency Ni Putu Xena Tantowi; Kurniasih Sukenti; Tri Mulyaningsih
Jurnal Biologi Tropis Vol. 22 No. 3 (2022): July - September
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.v22i3.3427

Abstract

The Hindu community in Jagaraga Village, West Lombok Regency is a local community whose life is closely related to the use of plants in daily life, including using plants in traditional rituals. Jagaraga Village has areas surrounded by rice fields and farms, therefore the Hindu community in Jagaraga Village performs the Tumpek Wariga traditional ceremony. Tumpek Wariga is held as a form of gratitude for the plants and also as a form of request to the plants to produce a good harvest. This ceremony is carried out 25 days before the Galungan ceremony. This study aims to explore the ethnobotanical aspects of the plants used in the Tumpek Wariga ceremony. The research was conducted in 5 hamlets of the Hindu community of Jagaraga Village, namely Tambang Eleh Hamlet, Lamper Hamlet, Karang Lamper Hamlet, West Jagaraga Hamlet and East Jagaraga Hamlet. All qualitative and quantitative data were analyzed descriptively based on the results of observations, interviews, calculations of Reported Use (RU) and the Index of Cultural Significance (ICS). Data collection in the field is done by observation, interviews, and documentation. The selection of sources using purposive sampling and snowball sampling methods. Based on the results obtained, 59 species of plants belong to 50 generas and 36 families are used in Tumpek Wariga ceremony in the Hindu community of Jagaraga Village, West Lombok Regency. These plants are used as food, other food ingredients such as spices, secondary materials, offerings and ritual equipments.
Evaluation of The Quality of Antibiotic Use in Urinary Tract Infection Patients in hospitalization installations of NTB Provincial Hospital in 2019 Husnul Marifah; Candra Eka Puspitasari; Ida Ayu Eka Widiastuti
Jurnal Biologi Tropis Vol. 22 No. 3 (2022): July - September
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.v22i3.3488

Abstract

Urinary Tract Infection (UTI) is a nosocomial infection with several occurrences around 39-60 % in Indonesia. Antibiotics are the main therapy for UTIs. The use of poor quality antibiotics can cause irrational antibiotics therapy which leads to the risk of resistance. This research aims to recognize the patterns of antibiotics use and determine the percentage of the appropriate use of antibiotics. This research is an observational type of research with a cross-sectional design. The data were obtained retrospectively from July to September 2021 using 53 medical records of UTI hospitalized patients. The obtained data were analyzed descriptively and quantitatively using the Gyssens method. The result shows the characteristics of UTI patients are dominated by males (54,72%) and occurred in toddlers at age of 0 -5 years (20,75%) and the elderly at age 56- 65 years (15,09%). The antibiotics used in this research were dominated by ceftriaxone (37,50%). Of 53 patients using 80 antibiotics, the percentage of use accuracy of antibiotics in UTI patients in RSUD Provinsi NTB (category 0) is 23,75%. The inappropriate use of antibiotics is 76,25% was found in various categories, namely category VI medical record data incomplete (32,50%), IVA where there were more effective antibiotics (10%), IVC there were cheaper antibiotics (1,25%), IIIA too long duration of antibiotics use (8,75%), IIIB too short duration of antibiotics use (7,50%), IIA improper dosage of antibiotics (11,25%), and IIB improper giving interval (5%). Therefore, it can be concluded that there is still irrational use of antibiotics, especially improper dosage category.
Potential Carbon Content in The Coastal Mangrove Forests Area Of West Lombok District, West Nusa Tenggara Province Haryani Haryani; Muhlis Muhlis; Didik Santoso
Jurnal Biologi Tropis Vol. 22 No. 3 (2022): July - September
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.v22i3.3647

Abstract

Mangrove forests have very important ecological functions for coastal areas as carbon stores so this study aims to determine the potential carbon content of mangrove forests. The implementation of this research is in the coastal area of ​​West Lombok Regency, West Nusa Tenggara Province. Two locations were found, namely Sekotong Beach and Cemara Beach. This research method uses a survey method. Data were analyzed by IPCC analysis method. The results showed that at Cemara Beach the highest carbon content was produced in the mangrove species Avecennia lanata, with the total carbon content and carbon absorption being 7,456 tons C/ha and 27,364 tons CO2/ha. while at Sekotong Beach the carbon content is found in the Avecennia lanata species, with a total carbon content of 2,847.6 tons C/ha and carbon sequestration of 10,067.54 tons CO2/ha. The difference in potential carbon content on the two beaches in West Lombok district is due to because the soil conditions are different but the carbon content is still good enough for the potential carbon content in the coastal mangrove ecosystem area of ​​West Lombok Regency, West Nusa Tenggara.
Isolation of endophytic bacteria from cashew root and its ability as phosphate solubilizing and IAA-producing bacteria Yulia Ningsih; Lalu Zulkifli; Mahrus Mahrus
Jurnal Biologi Tropis Vol. 22 No. 3 (2022): July - September
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.v22i3.3652

Abstract

This study aimed to isolate endophytic bacteria from cashew plant roots, and to determine their ability to dissolve phosphate and produce IAA. This research was conducted at the Microbiology Laboratory of the Faculty of Medicine, University of Mataram. This research was conducted by isolating the endophytic bacteria of cashew nut root and then testing the phosphate solubilizing ablity and testing the potential for IAA-producing bacteria. Based on the results of the study, there were 7 isolates of endophytic bacteria, all of which were able to solubilize inorganc phosphate with a low phosphate solubility index, ranging from 1 to 1.7. Of the 7 isolates, there were 2 isolates that were able to produce IAA, namely AJM 7 and AJM8 isolates with IAA concentrations ranging from 16 to 18 ppm. Based on the results above, it can be concluded that the endophytic bacterial isolates from the roots of the cashew plant have the potential to be a candidates for biofertilizer formulation.
Utilization of Medicinal Plants: Case Study in Kelayam Sub-village Manua Sadap Village Kapuas Hulu Regency Fathul Yusro; Ernalinda Mangkoan; Yeni Mariani
Jurnal Biologi Tropis Vol. 22 No. 3 (2022): July - September
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.v22i3.3690

Abstract

Most of the people in the Kelayam sub-village, Manua Sadap village, come from the dayak Iban tribe. Their lives are close to the forest, and they still hold on to their cultural customs are undoubtedly interesting for research, primarily how they use the plants in the forest as part of their traditional medicine. This study aims to record and analyze the medicinal plants used by the people of the Kelayam sub-village, Manua Sadap village, Kapuas Hulu Regency. We conducted this research using a survey method with a sampling technique, and the respondents were selected with a snowball sampling. The results showed that the people of the Kelayam sub-village, Manua Sadap village used 21 medicinal plants for various treatments such as to treat wounds, skin diseases, muscle pain, hypertension, cholesterol, stomach pain, and to treat toothache. There are 17 families of medicinal plants used by the community, and the most dominant is from the Rubiaceae family. The highest utilization of plant parts is leaves (67%) by boiling (31%) and pounding (30%) and the use of plants by drunk and patched, each of which has the same value (32%). The data on medicinal plants in the Kelayam sub-village, Manua Sadap Village, adds to the wealth of knowledge of traditional medicinal plants in Kapuas Hulu Regency, especially in the Iban Dayak comunity.

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