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Kota semarang,
Jawa tengah
INDONESIA
BIOMA
Published by Universitas PGRI Semarang
ISSN : 20865481     EISSN : 25499890     DOI : 10.26877
Core Subject : Education, Agriculture,
Agriculture, Biological Sciences & Forestry Education
Arjuna Subject : -
Articles 246 Documents
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TRANSPORTATION ACTIVITIES ON CONTENT IMPACT LEAD (Pb) IN AMBIENT AIR IN SEMARANG CITY Sunoko, Hemma Rya; Hadiyarto, Agus; Santoso, Budi
BIOMA Vol 1, No 2, Oktober (2011): Bioma
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The activity of one affects the transport of air pollution, the exhaust emissions of lead (Pb) is a heavy metal that is a toxin that affects the environment and human health and cumulative.Objective of this study aims to assess the levels of lead (Pb) in the air in the city of Semarang in various locations that have high traffic density and control / control levels of lead (Pb) of air at various street locations that have a level of high density of vehicular traffic so as not to endanger.The study was conducted by taking samples at the time of dense traffic of working days and still in the dry season. Samples were taken at 4 (four) dense traffic locations and 1 (one) location that is not dense traffic, then the analytical laboratory, where the method of sampling the field with gravimetry and spectrophotometric analysis.Based on the results of the research content of lead (Pb) highest at the intersection Bangkong μg/Nm3 of 2.41 and lowest 0.86 in Akpol complex μg/Nm3, by looking at the data there is a tendency increasingly dense traffic density of vehicles using gasoline fuel Pb levels in the air also increases. Based research on the highest levels of lead (Pb) in the air ambeint is in the intersection Bangkong at 2, 41 mg / Nm ³, this suggests by density of vehicle traffic at the site is also the highest and the effort air pollution control specifically heavy metals lead(Pb) in Semarang need con-tinuous or periodic monitoring of the magnitude of Pb levels in the air, and action modes of transportation system improvements in Semarang.Keywords: Lead (Pb), air pollution.
INFLUENCE GIVING OF EXTRACT FRUIT MENGKUDU TO HISTOPATOLOGI TESTIS WHITE MOUSE FOLLOWING AN INHALATION CIGARETTE SMOKE S. D., Endah Rita
BIOMA Vol 1, No 2, Oktober (2011): Bioma
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This Research to know influence giving of extract fruit Mengkudu (Morinda citrifolia) to histopatologi of white mouse (Rattus norvegicus) testis following an inhalation cigarette smoke and to know how much is giving of extract fruit of Mengkudu more having an effect on in an optimal fashion for the minimization of to damage of testicle seminiferus tubulus white mouse given by wistar galur cigarette smoke treatmen.Eksperiment design in this research use completely random design (RAL) by four treatment that is (A) mouse + cigarette smoke + 0 ml / fruit extract day of Mengkudu as control; (B) mouse + cigarette smoke + 0,9 ml / fruit extract day of Mengkudu; ( C) mouse + cigarette smoke + 1,8 ml / fruit extract day of Mengkudu; (D). mouse + cigarette smoke + 2,7 ml / fruit extract day of Mengkudu, by four replication. Para-meter the measured white mouse testis seminiferus tubulus histopatologi. Research executed by UNNES in January 2011 until March 2011.Result of research indicate that treatment of fruit extract of mengkudu give influence which signifikan ( p< 0,05) to white mouse testis seminiferus tubulus histopatologi of wistar galur. Usage of fruit extract of Mengkudu dose 1,8 ml / day optimal dose in minimization damage of white mouse testis seminiferus tubulus, following an inhalation cigarette smoke.From result of the research can be concluded that usage of fruit extract of Meng-kudu can minimization damage of white mouse testis seminiferus tubulus given by cigarette smoke treatmen. But antioksidan with excessive dose can turn into pro-oksidan so that earn damage watering down effect of free radical.Keywords : fruit extract of mengkudu, testis, histopatologi, cigarette smoke
TONIC IMMOBILITY TECHNIQUE AS INDICATORS OF STRESS ON CHICKEN IN THE MAINTENANCE OF INTENSIVE WITH INTERMITTENT LIGHTING Sulistyoningsih, Mei
BIOMA Vol 1, No 2, Oktober (2011): Bioma
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Lighting is an important part of poultry production. Lighting is a powerful exogen-ous factor in controlling many physiological and behavioral processes. Lighting is the most critical factor of all the environmental factors for poultry. The research aims to (1) assess the influence of intermittent lighting in intensive maintenance chickens on chicken that has been commonly maintained by to let loose (removed), (2) examine how to overcome the possibility of stress that arise in chic-kens which are usually removed, then maintained in a way grounded. The study design used was completely randomized design (CRD) in time, with three treatments are: C1 = illumination 1L: 3D: C2 = lighting 2L: 2D; and C3 = lighting 12L: 0D. Each treatment was repeated four times. The parameters studied were body weight, technique tonic immobility, and mortality. Data were analyzed and interpret- ted by analysis of variance. The results are, the imposition of intermittent lighting on the maintenance of inten-sive chicken on a scale of households, providing a positive and beneficial influence on the production aspect of weight loss and mortality. Intermittent lighting will mi-nimize the risk of stress in chickens as seen on tonic immobility technical para-meters of this study. The best performance results seen in treatment C1 (1L: 3D), the treatment of intermittent one-hour light, and 3 hours of darkness each day, from 18:00 until 06:00 hours for 10 weeks, starting the second week of the study. The conclusion is intermittent lighting treatment in the intensive maintenance chic-kens on chicken that has been commonly maintained by to let loose positive effect that can increase body weight, reduce mortality and minimize the risk of stress.Keywords: Chicken, intermittent lighting, tonic immobility
WET WEIGHT AND NUMBER OF THE ELEPHANT GRASS TILLER ARE PLANTED WITH SOYBEAN INTERCROPPED Suharno, Ben; Puspitaningrum, Dewi
BIOMA Vol 1, No 2, Oktober (2011): Bioma
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This study aims to investigate: the influence of the number of participants crop (soy-bean), the influence of Rhizobium sp dosage, interactions influence the number of participants crop (soybean) and Rhizobium sp dose to the total wet weight and num-ber of tiller Pennisetum purpureum, the planting of grass-soybean intercropping Rhi-zobium sp inoculation. The research method uses randomized full factorial (factorial RCBD) with 2 factors and 3 replications. Parameters to be measured is the total wet weight and number of tiller Pennisetum purpureum. The data obtained were analyzed by analysis of vari-ance, followed by Duncan multiple range test and multiple linear regression ana-lysis. The results showed that treatment of soybean plants participant, dose Rhizobium sp, and participant interaction with defoliation of soybean Rhizobium doses of 1 and 2 did not significantly affect the total wet weight and number of tiller Pennisetum pur-pureum. However, in the second defoliation, Rhizobium dose significantly influence the total wet weight of Pennisetum purpureum. The conclusion is, cropping the grass-soybean intercropping with inoculation of Rhi-zobium sp can not be used to increase the total wet weight and number of grass tiller.Key words: Pennisetum purpureum, wet weight, tiller, Rhizobium sp, soybeans.
MEANINGFUL LEARNING WITH SETS APPROACH IN BIOLOGY LESSON FOR GROWING CONCERN ON THE ENVIRONMENT Setyo, Ajib
BIOMA Vol 1, No 2, Oktober (2011): Bioma
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This study aims to develop meaningful learning with SETS approach in photosyn-thetic material to enchance the activity of learning and growing concern for the envi-ronment as well as find out the validity, reliability and effectiveness of the device developed. Research carried out is the research and development. Research subjects were 48 students of SMAN 2 Mranggen, and 84 students of SMAN 1 Demak, each chosen cluster randomly from the entire class of parallel groups that exist. The results of the development of devices have been validated by experts and with the validation of construct values 3.4; syllabus 3.57; of teaching materials and stu-dent worksheets are 3.125; RPP 3.0; and evaluation of learning of 3.125 with either category. Achievement learning activities in the experimental class discussion jig saw 8 percent, 93 percent independent practicum and presentation assessment pho-tosynthetic material SETS 77 percent. Learning is done to foster concern for the envi-ronment by 61.90 percent (very high) and 38.10 percent (high) of 42 students. Me-aningful learning can achieve a classical completeness by 100 percent and improve student learning outcomes for the N-gain of 0.72. Criterion scores showed signifi- cant learning device usage 81 percent, and 90 percent of student responses, the res-ponses of teachers expressed a very meaningful learning tools to create meaningful learning as well. The conclusion of this study is, the learning material with SETS approach on photo-synthesis developed, categorized as very meaningful to enhance the activity of lear-ning and growing concern for the environment.Keywords: learning meaningful, SETS, photosynthesis, activity, environment
PROTEIN DIGESTION IN PERANAKAN ETAWA GOAT DUE TO DIFFERENT LEVELS OF DIETARY PROTEIN Yusuf, Roosena
BIOMA Vol 3, No 1, April (2014): Bioma
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The  effort  to  increases  milk  production  especially  milk  goat production  can  do  with  increasing  quality  of  dietary  and maintenance  of  goats,  one  of  them  was  increasing  level  of dietary  protein  to  increase  protein  metabolism  in  goats.  The research purpose was to find out the acurate of  dietary protein level to maximalize protein digestion  in Peranakan Etawa goat. The  materials  used  in  the  research  were  12  Peranakan  Etawa goats at fourth month pregnancy and range of body weight 35,20 ±  1,21  kg  (cv  =  3,44%)  with  ±  13  month  ages.  The  research design  that  used  is  completely  randomized  design  one  factor with three treatment and four restating. Parameter that evaluated include dry matter intake, consumption of crude protein, protein digestion. Result of the research shown that the average of dry matter intake to T1, T2 and T3 were 958,99; 981,51 and 1242,73 g/goat/day  (P<0,05).  The  average  of  consumption  of  crude protein  to  T1,  T2  and  T3  were  114,69;  144,44  and  233,11 g/goat/day(P<0,05). The average of protein digestion to T1, T2 and  T3  were  64,22  (55,18%);  92,83  (64,21%)  and  156,21 (66,97%)  g/goat/day  (P<0,05).  The  conclution  of  the  research was  levels  of  dietary  protein  as  18,43%  may  increase  the optimal protein digestion in Peranakan Etawa goat.Keywords : protein, Peranakan Etawa goat
REKAYASA PAKAN MELALUI BIOFERMENTASI LIMBAH IKAN TERHADAP PRESENTASE KARKAS DAN PANJANG USUS PADA AYAM BROILER -, Reni Rakhmawati; -, Mei Sulistyoningsih
BIOMA Vol 3, No 2, Oktober (2014): Bioma
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ENGINEERING FEED THROUGH BIOFERMENTATION AGAINST WASTE FISH CARCAS PRECENTAGE AND LENGTH OF INTESTINE IN BROILER CHICKENS   ABSTRACT The fulfillment of the purposes of the ration is currently experiencing difficult times due to high raw material prices, thereby impacting on the price of feed, particularly poultry rations. Utilization of fishery waste into feed material can give importance to livestock production, one of which allows to be used as an alternative feed ingredient is fish waste as silage. This study aims to determine the effect of fish waste silage on the growth of broiler chickens. DOC broiler study subjects unsex tail number 96. The study treatment consisted of P0 (commercial ration / control), P1 (commercial ration + 2.5% fish waste silage), P2 (commercial ration + 5% fish waste silage), P3 (commercial ration + 7.5% silage waste fish), with four replications. Experimental design is completely randomized design (CRD), the experimental results were analyzed by ANOVA followed by Duncan test. Results of this study was no effect of fish waste silage to the percentage of carcasses and gut length (P> 0.05).   Keywords: Carcass, Guts, Broiler. ABSTRAK Pemenuhan keperluan ransum saat ini mengalami masa yang sulit akibat mahalnya harga bahan baku, sehingga berdampak terhadap harga ransum, khususnya ransum unggas. Pemanfaatan limbah perikanan menjadi bahan pakan dapat memberikan arti penting bagi produksi peternakan, salah satu diantaranya yang memungkinkan untuk dimanfaatkan sebagai bahan pakan alternatif adalah limbah ikan sebagai silase. Penelitian ini bertujuan mengetahui pengaruh pemberian silase limbah ikan terhadap pertumbuhan ayam broiler. Subyek penelitian DOC broiler sejumlah 96 ekor unsex. Perlakuan penelitian ini terdiri dari P0 (Ransum komersial/kontrol), P1 (Ransum komersial + 2,5 % silase limbah ikan), P2 (Ransum komersial + 5 % silase limbah ikan), P3 (Ransum komersial + 7,5 % silase limbah ikan), dengan 4 ulangan. Desain percobaan adalah Rancangan Acak Lengkap (RAL), hasil percobaan dianalisis dengan ANOVA dilanjutkan dengan uji Duncan. Hasil penelitian ini adalah tidak ada pengaruh pemberian silase limbah ikan terhadap presentase karkas dan panjang usus (P > 0,05).   Kata kunci : Karkas, Usus, Broiler.
OPTIMALISASI FEED ADDITIVE HERBAL TERHADAP BOBOT BADAN, LEMAK ABDOMINAL DAN GLUKOSA DARAH AYAM BROILER -, Mei Sulistyoningsih; Dzakiy, M. Anas; -, Atip Nurwahyunani
BIOMA Vol 3, No 2, Oktober (2014): Bioma
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OPTIMIZATION OF FEED ADDITIVE ON BODY WEIGHT, ABDOMINAL FAT, AND BLOOD GLUCOSE LEVELS BROILER CHICKEN ABSTRACT   Culture to consume a healthy food as the factor that is very important to produce high-quality human resources.  Broiler chicken is one of food consumed widely, as a source of proteins and fats in large numbers in indonesia for all age (kids and adults). This research aims to  assess the optimization of the feed additive on body weight and blood glucose. The independent variable is giving a variant of feed additive herbs (Aloe vera sp, Morinda citrifolia sp, and Zingiber officinale sp). Dependent variable is body weight, abdominal fat, and blood glucose levels. Variable control of this research is the number of feed, health management, the type of chicken, the age of chicken, and  the system of cage. Some preliminary research has been done by researchers at various variant feed additive herbs to produce broiler chicken with the status of the physiology and performans ideal optimally. The results of this research shows the influence of treatment variant feed additive on increased body weight (P<0,05), There is the influence of treatment against the low blood glucose levels (P<0,05), and no influence treatment of abdominal fat (P>0,05).   Keyword: body weight, abdominal fat, blood glucose, feed additive, broiler   ABSTRAK   Budaya mengkonsumsi pangan yang sehat menjadi faktor yang sangat penting untuk menghasilkan sumber daya manusia Indonesia yang berkualitas. Ayam broiler merupakan salah satu pangan yang dikonsumsi secara luas, sebagai sumber protein dan lemak dalam jumlah besar di Indonesia untuk semua usia (anak-anak maupun dewasa). Penelitian ini bertujuan untuk mengkaji optimalisasi feed additive terhadap performans terhadap bobot badan dan penstabilan glukosa darah. Variabel independen adalah pemberian varian feed additive herbal (lidah buaya, buah mengkudu, jahe). Variabel dependen terdiri dari bobot badan, lemak abdominal, dan kadar glukosa darah ayam. Variabel kendali penelitian ini adalah jumlah ransum, manajemen kesehatan, jenis ayam, umur ayam, dan sistem perkandangan. Beberapa penelitian pendahuluan telah dilakukan oleh peneliti pada berbagai varian feed additive herbal untuk menghasilkan ayam broiler dengan status fisiologi ideal dan performans yang optimal. Hasil penelitian ini menunjukkan ada pengaruh perlakuan varian feed additive terhadap peningkatan bobot badan (P<0,05), ada pengaruh perlakuan terhadap rendahnya kadar glukosa darah (P<0,05), dan tidak ada pengaruh perlakuan terhadap lemak abdominal (P>0,05).   Kata kunci: Bobot badan, lemak abdominal, glukosa darah, feed additive, Broiler
PENURUNAN KONSENTRASI LOGAM BERAT KADMIUM (Cd) DAN PERTUMBUHAN MIKROALGA Chlorella vulgaris PADA MEDIA KULTUR -, Puput Widiyani; Sulistya Dewi, Endah Rita
BIOMA Vol 3, No 2, Oktober (2014): Bioma
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DECREASE IN THE CONCENTRATION OF HEAVY METAL CADMIUM (Cd) AND MICROALGAE chlorella vulgaris GROWTH ON CULTURE MEDIA ABSTRACT The objectives of this study is to determine the decrease in heavy metal concentrations of Cd in the culture media and to determine the effect of Cd concentration on the growth of Chlorella vulgaris. This study used a completely randomized design with four treatments and three repititions. This treatment includes, K treatment (control), treatment Cd 1 (cadmium concentration addition 1 mg / L), treatment Cd 3 (cadmium concentration addition 3 mg / L) and treatment Cd 5 (cadmium concentration addition 5 mg / L). Each sample was analyzed by AAS. Data were analyzed by using analysis of variance that was continued by Duncans test. The results of the analysis of metal concentrations decrease of Cd in the culture medium is Cd 5 (0.4494 mg / l), Cd 3 (0.4008 mg / l), Cd 1 (0.2658 mg / l), and K (0.1162 mg / l). The analysis result of F value of variance showed that Chlorella vulgaris gave highly significant effect in decreasing the concentration of Cd. Whereas the result of the growth of Chlorella vulgaris during culture is Cd 3 (1015.97 cells / ml), Cd 1 (769.70 cells / ml), Cd 5 (719.55 cells / ml), and K (668.21 cells / ml ). The result of analysis variance showed that the various concentrations of Cd gave significant effect on the growth of Chlorella vulgaris. The conclusion is that Chlorella vulgaris have ability as bioremediator cadmium with different concentrations, this is indicated by the reduced content of Cd in the culture medium. The ability of metal Cd can substitute Zn function in synthesizing enzyme carbonic anhydrase that causes maximal growing.   Keywords: Decreased concentration, cell growth, cadmium (Cd), Chlorella vulgaris ABSTRAK Penelitian ini bertujuan untuk mengetahui penurunan konsentrasi logam berat Cd pada media kultur dan untuk mengetahui pengaruh konsentrasi Cd terhadap pertumbuhan Chlorella vulgaris. Penelitian ini menggunakan rancangan acak lengkap (RAL) dengan 4 perlakuan dan 3 kali pengulangan. Perlakuan ini meliputi, perlakuan K (kontrol), perlakuan Cd 1 (penambahan konsentrasi kadmium 1 mg/L), perlakuan Cd 3 (penambahan konsentrasi kadmium 3 mg/L) dan perlakuan Cd 5 (penambahan konsentrasi kadmium 5 mg/L). Masing-masing sampel dianalisa dengan AAS. Analisa data menggunakan analisis variansi yang dilanjutkan dengan uji Duncan. Hasil analisis penurunan konsentrasi logam Cd pada media kultur adalah Cd 5 (0,4494 mg/l), Cd 3 (0,4008 mg/l), Cd 1 (0,2658 mg/l), dan K (0,1162 mg/l). Hasil analisis varians F hitung menunjukkan bahwa Chlorella vulgaris memberikan pengaruh berbeda sangat nyata terhadap penurunan konsentrasi logam Cd. Sedangkan hasil pertumbuhan Chlorella vulgaris selama kultur adalah Cd 3 (1015,97 sel/ml), Cd 1 (769,70 sel/ml), Cd 5 (719,55 sel/ml), dan K (668,21 sel/ml). Hasil analisis varians menunjukkan bahwa berbagai konsentrasi logam Cd memberikan pengaruh berbeda nyata (signifikan) terhadap pertumbuhan Chlorella vulgaris. Kesimpulannya ialah Chlorella vulgaris memiliki kemampuan sebagai bioremediator kadmium dengan konsentrasi yang berbeda, hal ini ditunjukkan dengan berkurangnya kandungan Cd dalam media kultur. Kemampuan logam Cd dapat menggantikan fungsi Zn dalam mensintesis enzim karbonik anhidrase yang menyebabkan pertumbuhan semakin maksimal.   Kata  kunci : Penurunan konsentrasi, pertumbuhan sel, kadmium (Cd), Chlorella vulgaris
EFEKTIFITAS PENGEMBANGAN PERANGKAT PEMBELAJARAN BERVISI ”REST” (RELIGION, ENVIRONMENT, SCIENCE, AND TECHNOLOGY) DAN BERPENDEKATAN BIOENTREPRENEURSHIP TERHADAP PRESTASI BELAJAR MAHASISWA BIOLOGI Mulyaningrum, Eko Retno
BIOMA Vol 3, No 2, Oktober (2014): Bioma
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THE EFFECTIVENESS OF DEVELOPING REST (RELIGION, ENVIRONMENT, SOCIETY, TECHNOLOGY) LESSON PLAN AND BIOENTREPRENEURSHIP APPROACH TO THE BIOLOGY STUDENTS’ LEARNING OUTCOME ABSTRACT The aim of this study was to develop an instructional instrument for Biology based on Religion, Environment, Society, and Technology (REST). It employed a bioentrepreneurship approach, discribed students’ learning outcome while they attending in the subject of enviromental pollutions, which was a part of the enviromental science. The subjects for this research were the second semester students at PGRI Semarang University, Biology Education Department. This research used a Research & Development method. The learning outcomes of the subjects in the experimental group on the materials given were higher than those in the control group. The REST-based instructional instrument, helped by the bioentrepreneurship approach, consisted of lesson plan, lectured contracts, modules,  students’ work sheets, and instrument evaluation could be applied for pollution material, subject of environmental knowledge.   Keywords: Instructional instrument, REST (Religion, Environment, Science and Technology), Bioentrepreneurship, Environmental Knowledge.   ABSTRAK Tujuan dari penelitian ini adalah untuk mengembangkan dan menguji efektivitas produk perangkat pembelajaran terhadap prestasi belajar mahasiswa melalui pembelajaran bervisi REST (Religion, Environment, Science, and Technology). Penelitian ini menggunakan pendekatan Bioentrepreneurship untuk mengetahui hasil pembelajaran mahasiswa dalam materi pencemaran lingkungan pada perkuliahan Pengetahuan Lingkungan. Subjek penelitian ini adalah mahasiswa semester II Jurusan Pendidikan Biologi Universitas PGRI Semarang. Metode penelitiannya menggunakan Research & Development. Hasil pembelajaran di kelompok eksperimen lebih tinggi dibandingkan dengan kelompok kontrol. Kesimpulannya adalah bahwa perangkat pembelajaran berbasis REST dan berpendekatan bioentrepreneurship, terdiri dari rencana pembelajaran, bahan ajar, lembar kegiatan mahasiswa, dan soal evaluasi efektif untuk digunakan pada perkuliahan Pengetahuan Lingkungan materi Pencemaran Lingkungan.   Kata kunci: Perangkat pembelajaran, REST (Religion, Environment, Science and Technology), Bioentrepreneurship, Pengetahuan Lingkungan

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