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Mitra Sains
Published by Universitas Tadulako
ISSN : 23022027     EISSN : 26866579     DOI : https://doi.org/10.22487/ms26866579
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Mitra Sains (E-ISSN: 2686-6579 ISSN: 2302-2027) is an open-access peer-reviewed scientific journal in agricultural sciences and agricultural economics. The Mitra Sains is published by Tadulako University in March and September. Mitra Sains invites high-quality research/review articles for publication in the coming issues. Focus: Mitra Sains is an interdisciplinary journal in agricultural sciences and economics. Scope: Mitra Sains welcomes original and significant contributions from across the field in plant science, agronomy, plant protection, forestry, animal husbandry, fishery, agribusiness, and agricultural social economics.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 10 Documents
 1 
Search results for , issue "Vol 4 No 3 (2016): Juli" : 10 Documents clear
Patogenitas Edwarsiella tarda Pada Ikan Sidat (Anguilla marmorata) Selama Penyimpanan Beku -25°C Arsal Arsal; Asriani Hasanuddin; Ahmad Rizal
Mitra Sains Vol 4 No 3 (2016): Juli
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/mitrasains.v4i3.236

Abstract

The purpose of this study is to determine the patogenechity (ability to cause death) of the Edwarsiella tarda in fish eel (Anguilla marmorata) which have frozen and stored at a temperature of -25°C for 15, 25 and 35 days. Patogenecity was tested with methode by isolating E. tarda from the meat of frosen Eel that what stored for 15, 25 and 35 days ago carried infected to eels the size of 120-122 grams with injecting isolate bacteria Edwarsiella tarda is intraperitoneally as much as 0,1 ml/ind at a dose of 108 CFU/ml (standard 1 Mac Farland), then maintened and observed for 15 days. Pathogenicity test results based on mortality / death of the fish indicates that the bacteria Edwarsiella tarda taken from frozen eel fish stored for 15, 25 and 35 days at temperatures-25oC were still survive and still are pathogenic to fish eel with a tendency the longer the storage time, it will decrease the mortality rate / patogenitasnya. Results of analysis of variance showed mortality observed eel (Anguilla marmorata) with a storage time of 15 days and 25 days resulted in a significantly different effect than the storage time of 35 days with a storage temperature -25oC.
Jenis Arthropoda Goa Gumbasalu Kecamatan Bambalamotu Kabupaten Mamuju Utara Dan Pengembangannya Sebagai Media Pembelajaran Rosnita Rosnita; Achmad Ramadhan; Hartono D Mamu
Mitra Sains Vol 4 No 3 (2016): Juli
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/mitrasains.v4i3.237

Abstract

The purpose of this study was to identify and describe the types of arthropods in Gumbasalu cave Bambalamotu District of North Mamuju regency. The result of this study then developed into biology teaching media in the form of a paperback book and audio-visual media. This study was held in form of descriptive research and development using 4D design. Sampling for Arthropods used direct collection techniques and pitffal trap then identified using a key book determination. Results of the study found 16 species of arthropods, which consists of 2 class of crustasea, 6 class of insect, 3 class of arachnid and 5 class of Myriapoda as for the type found is Parathelphusa sp, Macrobrachium lar. F, Rhaphidophora sp, Apis sp, sp Lophobaris, Formica rufa. L, Lepisma sp, sp Antomeris, Heteropoda sp, sp Charon, Heteropoda beroni, Scutigera sp, Scolopendra sp, sp Julus, Nerceus sp, Julus sp. Results were then used as a paperback book and audio-visual media. These two media then validated by the validation results for the paper back book content expert (83.3%), media experts (86.15%), design experts (82.8% ), and audio-visual media experts (93.3%), and then tested on the test results of students with small group for a paperback book (85.2%), testing a large group (86.4%). For audio visual media the percentage result was in a small group (83.51%), in a large group (87.4%). The result of this study shows that learning media in the form of a paperback book and audio-visual is proper for use.
Mutu Kimia Dan Organoleptik Permen Jelly Rumput Laut Gelatin Sapi Maya Novitasari; Mappiratu Mappiratu; Dwi Sulistiawati
Mitra Sains Vol 4 No 3 (2016): Juli
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/mitrasains.v4i3.238

Abstract

Jelly has a supple and elastic texture. Jelly is one kind of product that attracted many people because the texture is different compared to other sweets. One of the factors that affect the quality of jelly is the gel-forming material. This study aims to determine the ratio of seaweed to cow’s gelatin that can produce jelly which has a good chemical and organoleptic quality. The experimental design used in this research is completely randomized design (CRD) with a combination of patterns is a difference ratio of seaweed and cow’s gelatin repeated 3 times so that there are 18 units of the experiment. Chemical parameters were observed consisting of ash and total sugar. Organoleptic parameters were observed consisting of taste and firmness. Jelly that produced in this research had 0.43 to 0.68% ash content and total sugar content 33, -53.67% and it has the organoleptic quality preferred by the panelists. Jelly that produced in this research is still meet the quality standard ISO 3574.2-2008.
Pengaruh Metode Perkawinan Terhadap Keberhasilan Kebuntingan Sapi Donggala Di Kabupaten Sigi Sudirman Sudirman
Mitra Sains Vol 4 No 3 (2016): Juli
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/mitrasains.v4i3.239

Abstract

This studywas conducted Januari to Mei 2015 to evaluate effect of mating method on the pregnancy success oflocal cows in Sigi Regency. The study involved 50 local cows as acceptors. The data were analyzed byusing chi-square method. The observed variables werenon-returnrate (NRR), the conception rate (CR) on thefirst mating, and that average of mating rate requiredto getpregnant.The research result showed that mating method did not influence(P>0.05) on both NRR and NR. The NRR rate were 68% and 64% for artificial insemination and natural mating, respectively. The CR were 64% and 52% for artificial insemination and natural mating, respectively. While service per conception (S/C) for artificial insemination was 1.6 and natural mating was 1.9. It is concluded that the mating method did not have asignificant effect (P>0.5)on the pregnancy success oflocal cows in Sigi Regency
Meningkatkan Motivasi Dan Hasil Belajar Siswa Melalui Contextual Teaching And Learning Pada Tema Lingkungan Di Kelas II SDN 2 Talise Santje Amuntu; Amram Rede; Marungkil Pasaribu
Mitra Sains Vol 4 No 3 (2016): Juli
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/mitrasains.v4i3.240

Abstract

The study was classroom action research aimed to improve motivation and students learning outcomes in environment theme by implementing CTL. The research carried out at SDN 2 Talise with 22 students in academic year 2013-2014. The research consist of two cycles. Each cycles is supported by planning, action, observation, and reflection. The results showed that the student absorbing and classical learning completeness realized increasing from cycle I to cycle II. Teacher and student activities increasing where the teacher ativity in cycle I was in sound categoy in cycle II in good category,where as student’s activity in cycle I was in sufficient category but in cycle II was in good category. All the result can be concluded that the application of contextual learning can improve the outcome learning.
Mutu Organoleptik Tortilla Ubi Jalar Ungu Fitriani Basrin; Asriani Asriani; Gatot Siswohutomo
Mitra Sains Vol 4 No 3 (2016): Juli
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/mitrasains.v4i3.241

Abstract

This study aims: purple sweet potato tortilla has a crunchy texture. Tortilla purple sweet potato is one of a light meal that is loved by the community compared to other snacks. One of the factors that affect the quality of the tortilla is the ratio of purple sweet potato and cassava. the ratio of purple sweet potato, cassava produce purple sweet potato tortilla with good organoleptic quality. The research is designed using completely randomized design pattern combination and a randomized block design. RAL pattern combination is applied to influence the ratio of purple sweet potato and cassava (F1 = 1: 0), (F2 = 2: 1), (F3 = 2: 2), (F4 = 3: 1), (F5 = 3: 2), (F6 = 1: 1), while RAK applied in organoleptic purple sweet potato tortilla, which was tested by 30 panelists. Organoleptic quality research results purple sweet potato tortilla with panelists color value (5.33), aroma (5.03), flavor (5.97), texture (crispness) with the value (5.33) and the best level of preference is (5.27).
Pengaruh Model Pembelajaran Kooperatif Tipe Think Pair Share Dan Gaya Kognitif Terhadap Hasil Belajar Siswa Pada Mata Pelajaran Biologi Kelas XI IPA MAN 2 Model Palu Nurhaeda Nurhaeda; A. Tanra Tellu; Achmad Ramadhan
Mitra Sains Vol 4 No 3 (2016): Juli
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/mitrasains.v4i3.242

Abstract

This study aimed to: (1) describe the influence of cooperative learning model of TPS type and cognitive style toward the students’ learning result on Biology subject of the XI grade Science Program at MAN 2 Model Palu. This study applied quasi experimental method. The population of this study engaged 108 students which were administered into four classes. The sample for this study were selected through the implementation of random sampling technique, thus there were two classes selected with 48 students involved. The data collected in this study was the post-test scores which were analyzed through inferential statistic method. The data analysis drew on two-way Annova. The result of the analysis showed that: (1) The cooperative learning model of TPS type has contributed a significant effect toward students’ learning achievement. This model has surpassed the Direct Instruction model, (2) Cognitive style has significantly influenced toward students’ learning achievement. Students with field independent cognitive style have a higher learning achievement rather than those who were with field dependent cognitive style, (3) the interaction between learning model and cognitive style has no significant effect on students’ learning achievement. This has proved that learning model and cognitive style has functioned independently.
Pengaruh Model Pembelajaran Dan Motivasi Belajar Terhadap Hasil Belajar Siswa Pada Mata Pelajaran Matematika Di Kelas XI IPA SMA Negeri 2 Palu Aziza Aziza; Maxinus Djaeng; Baso Amri
Mitra Sains Vol 4 No 3 (2016): Juli
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/mitrasains.v4i3.243

Abstract

This study aimed to describe the effect of learning model and learning motivation on studets’ learning achievements in mathematics. This research was conducted at SMAN 2 Palu using a quasi-experimental design with factorial 2 ´ 2. The independent variable in this study is learning model and learning motivation. The dependent variable is the students' mathematics learning achievements. Instruments used in the form of learning motivation questionnaire and achievement test. These samples students of class XI-IPA taken using random sampling techniques. Analysis of data using analysis of variance two-lane. Results showed (1) there is a significant difference the mathematics learning achievements of students between who are taught trough active learning model and direct learning; (2) there is a significant difference the mathematics learning achievements of students beetween high learning motivation and student learning achievements learning motivation is low; (3) there is an interaction between learning active learning model and learning motivation of students; (4) specifically for low motivation students who are taught by active learning model mathematics learning achievements was higher than students taught with direct learning; (5) specifically for high motivation students who are taught by active learning model mathematics learning achievements was lower than students taught with direct learning; (6) specifically for active learning model students who have high motivation to mathematics learning achievements higher than the students who have low motivation, and (7) specifically for direct learning model students who have high motivation to mathematics learning achievements higher than the students who have low motivation.
Pengaruh Pengetahuan Awal, Kecerdasan Emosional, Dan Motivasi Belajar Terhadap Hasil Belajar IPA Siswa Kelas VIII SMP Negeri 3 Parigi Lilyanti M. Payung; Achmad Ramadhan; I Made Budiarsa
Mitra Sains Vol 4 No 3 (2016): Juli
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/mitrasains.v4i3.245

Abstract

The aimed of this Research to describe the effect of: (1) Students’s prior knowledge toward the science achievement; (2) emotional quotient toward the science achievement; (3) learning motivation toward the science achievement; and (4) prior knowledge, emotional quotient, and learning motivation toward the science achivement at class VIII of SMPN 3 Parigi. The population of the research was the students at class VIII of SMPN 3 Parigi registered in 2014/2015, consisted of 50 students. The sample of the the research was overall of the population member (saturated sample). The collecting data used multiple choice test to measure the student’s prior knowledge and questionnaire to measure emotional quetiont and student’s learning motivation. The data were analyzed by using double linear regression analyses with SPSS-17. The research findings indicated that there were significant effect between (1) prior knowledge toward the science achievement, (2) emotional quotient toward the science achievement, (3) learning motivation toward science achievement, (4) prior knowledge, emotional quotient, and learning motivation toward the science achivement at class VIII of SMPN 3 Parigi.
Implementasi Model Pembelajaran Invesitigasi Kelompok Berbasis Pendekatan Saintifik Untuk Meningkatkan Motivasi Dan Hasil Belajar Siswa Pada Mata Pelajaran IPA Di Kelas IV SD Inpres 2 Tondo Nurlinda Bilatu; Amram Rede; Indarini Dwi Pursitasari
Mitra Sains Vol 4 No 3 (2016): Juli
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/mitrasains.v4i3.247

Abstract

The study aimed to improve motivation and learning outcomes in science subject by implementing of group investigation learning model base on scientific approach was conducted on even semester in academic year 2014-2015. The research was classroom action research by 2 cycle. Each cycle consists of 2 meetings. The stage of each cycle are planning, action, observation, and reflection. The study result showed that learning motivation before action stage was 74% (good category), cycle I 84.03% (still in good category), cycle II 91% (excellent category). Another result was learning outcomes, it has average score 64% before action stage, in cycle I 71%, and cycle II 84%. The completeness level of classical score, before action stage was 43.3%, cycle I 87%, and cycle II 100%. Base on the result study could be concluded that implementation of group investigation learning model base on scientific approach in science subject can improve motivation and learning outcomes.

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