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Jurnal Akademika Biologi
Published by Universitas Diponegoro
ISSN : -     EISSN : 26219824     DOI : -
Core Subject : Science,
Biochemistry, Genetics & Molecular Biology
Jurnal Akademika Biologi diterbitkan oleh Departemen Biologi Fakultas Sains dan Matematika Universitas Diponegoro Semarang. Jurnal ini sebagai media publikasi hasil karya ilmiah lulusan S1 Departemen Biologi. Jurnal Akademika Biologi menerima artikel-artikel yang berhubungan dengan bidang ilmu biologi.
Arjuna Subject : Biokimia, Genetika dan Biologi Molekuler - Biokimia, Genetika dan Biologi Molekuler (Lain-Lain)
Articles 234 Documents
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INDEKS KUNING TELUR (IKT) DAN HAUGH UNIT (HU) TELUR PUYUH (Coturnix coturnix japonica) SETELAH PENAMBAHAN TEPUNG KUNYIT (Curcuma longa L.) DAN TEPUNG IKAN PADA PAKAN Suparyanti S; Koen Praseno; Tyas Rini Saraswati
Jurnal Akademika Biologi Vol. 2 No. 3 Juli 2013
Publisher : Departemen Biologi, Fakultas Sains dan Matematika Undip

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Abstract

This researchwasdesigned to study the potential of turmeric powder and fish powder in the feed to improve of Yolk Index (YI) and Haugh Unit (HU) of Coturnix coturnix japonica. Quail tread with turmenic powder 54 mg/quail/day with protein 25,19%. The parameters include daily feed, yolk indek (YI) and haugh unit (HU).. Experimental animal used in this study were 60 female japanese quails, which were divided into 4 experimental group each treatment 3 quails with 5 replication, while parameters measurement was carried out for 4 months, namely P0 (standard feeding), P1 (85% standard feeding and 15% fish powder feeding), P2 (85% standard feeding and 15% fish powder feeding added with turmeric powder on age 2 to 120 weeks), P3 (85% standard feeding and 15% fish powder feeding added with turmeric powder on age 45-75 days), The data obtained was analyzed using Analysis of Variance (Anova) on the basis of a completely randomized design (CRD) followed by duncan test with a 95% confidence interval overall analysis was using the sotwere SAA 9,1 for windows. The results showed that the addition of turmeric powder with concentration of 54 mg/quail/day and fish powder on feed didn’t affect the yolk index and haugh unit. The addition of turmeric powder (Curcuma longa L.) and fish powder in this study had no potential to increase the yolk index and haugh unit of quail’s egg (Coturnix coturnix japonica). Key words: Yolk Index (YI), Haugh Unit (HU),fish powder, quail (Coturnix coturnix japonica),  turmeric powder
PENGARUH LIMBAH CAIR TAHU TERHADAP PERTUMBUHAN POPULASI CHLORELLA PYRENOIDOSA H. CHICK DALAM SKALA LABORATORIUM Fatmawati Munir; Riche Hariyati; Erry Wiryani
Jurnal Akademika Biologi Vol. 6 No. 2 April 2017
Publisher : Departemen Biologi, Fakultas Sains dan Matematika Undip

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Abstract

Chlorella pyrenoidosa H.Chick is one of abundant microalgae in Indonesia and mostly cultivated due to its characters which are fast and easily transplanted. Tofu liquid waste contains nutrient which is needed by mikroalga because it contains inorganic content such as carbon, nitrogen, phosphorus, potassium. This research is to study the influence of difference concentration of tofu liquid waste towards population growth of C. pyrenoidosa and concentration level of  tofu liquid waste towards population growth of C. pyrenoidosa. The method is by cultivating C. pyrenoidosa H.Chick through the water media which has been given any tofu liquid waste concentration which functions as nutrient source for microalgae. The tofu liquid waste concentration  is consisting of0% as control, 15%, 30%, 45% and 60% and it’s conducted by three times repetition.  The obtained data was tested by ANOVA. As the F score was different then continued by Duncan test. The result shows that the optimal peak of microalgae’s population growth could befound in media with 15% concentration of tofu liquid waste, 337.500 cell/ml, then another control(0%), 170.000 cell/ml and 30%, 119.167 cell/ml, 45%, 81.667 cell/ml. The solidity of lowest population in  60%  concentration showed 65.833 cell/ml. This  findings  has showed that thedifferent handling of concentration towards tofu liquid waste has influenced on C. pyrenoidosapopulation growth. The optimal growth reaches at 15% concentration of  tofu liquid waste. Keywords: Chlorella pyrenoidosa, population, waste, liquid, tofu
STRUKTUR KOMUNITAS BRYOFAUNA LUMUT EPIFIT PADA ZONA MONTANA DI KAWASAN GUNUNG UNGARAN, SEMARANG, JAWA TENGAH Lucia Puspita Anggraini; Rully Rahadian; Jafron Wasiq Hidayat
Jurnal Akademika Biologi Vol. 3 No. 1 Januari 2014
Publisher : Departemen Biologi, Fakultas Sains dan Matematika Undip

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Abstract

Plant moss (bryoflora) is in important in the tropical forest, including Ungaran mount which is significantly play an  important role in water balance. Bryofauna can be found in moss attacking on the tree and is often referred  as moss epiphytic bryofauna. The objective of the research  were to compare the abundance and diversity of moss epiphytic bryofauna in Montana zone at three different altitudes of Ungaran mount. The sampling methods used was square plots. Bryophytes were collected in 10x10 cm plots on tree trunks. The specimens were extracted using Barlese funnel up to seven days at Laboratory of Ecology and Biosistematics, Departement of Biology, Diponegoro University. The results shows there were 5 classes of 15 ordes and 27 sub ordes/families. The highest abundance of moss epiphytic bryofauna was  in altitudes 2040 m asl (24.175 individu/m2), while the lowest was in altitude 1355 m asl (10.275 individu/m2). The biggest diversity of moss epiphytic bryofauna was found in altitude 2040 m asl (H’=2,20), while the lowest was in altitude 1355 m asl (H’=2,00). Acarina has the highest abundance in a these three altitudes. Keywords : Community Structure, Epiphytic Bryophytes, Bryofauna, Montana Zone
KUALITAS TELUR AYAM RAS SETELAH PENCELUPAN KE DALAM LARUTAN RUMPUT LAUT BERDASARKAN WAKTU PENYIMPANAN Fernanda Imansari; Muhammad Anwar Djaelani; Silvana Tana
Jurnal Akademika Biologi Vol. 7 No.3 Juli 2018
Publisher : Departemen Biologi, Fakultas Sains dan Matematika Undip

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Abstract

Telur merupakan salah satu sumber protein hewani yang penting bagi tubuh. Harga telur relatif murah sehingga terjangkau. Telur juga mempunyai kadar gizi yang cukup tinggi. Penelitian ini bertujuan mempertahankan kualitas telur ayam ras (susut bobot telur, indeks kuning telur dan haugh unit) dengan perlakuan pencelupan telur ke dalam larutan rumput laut dalam waktu penyimpanan yang berbeda. Penelitian ini menggunakan 27 butir telur ayam ras dengan 9 perlakuan dan 3 kali ulangan. Perlakuannya yaitu P0: kontrol, PtR7: tanpa pencelupan disimpan 7 hari, PdR7: pencelupan ke dalam larutan rumput laut disimpan 7 hari, PtR14: tanpa pencelupan disimpan 14 hari, PdR14: pencelupan ke dalam larutan rumput laut disimpan 14 hari, PtR21: tanpa pencelupan disimpan 21 hari, PdR21: pencelupan ke dalam larutan rumput laut disimpan 21 hari, PtR28: tanpa pencelupan disimpan 28 hari, PdR28: pencelupan ke dalam larutan rumput laut disimpan 28 hari. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL). Variabel pengamatan yaitu susut bobot telur, indeks kuning telur, dan Haugh Unit. Data yang diperoleh dianalisis dengan uji ANOVA pada taraf signifikansi 5% dan uji lanjut dengan uji Duncan. Hasil analisis data menunjukkan bahwa pencelupan telur ke dalam larutan rumput laut mempunyai kualitas susut bobot telur, indeks kuning telur, dan haugh unit yang lebih tinggi nilainya dari pada tanpa pencelupan. Pencelupan dapat mempertahankan nilai susut bobot, indeks kuning telur, dan haugh unit telur. Kualitas telur ayam hanya mampu bertahan pada penyimpanan selama 14 hari dengan nilai IKT 0,32 dan nilai HU 72,95 dengan nilai susut bobot yang tidak terlalu tinggi yaitu 2,35%Kata Kunci : Telur, Larutan Rumput laut, Susut Bobot Telur, Indeks Kuning Telur, Haugh Unit
KOMPOSISI DAN POLA SEBARAN POLYCHAETA DI PESISIR MANGKANG KULON KECAMATAN TUGU, SEMARANG BERDASARKAN TATA GUNA LAHAN Syarif Prasetyo; Sapto punomo Putro; Riche Hariyati
Jurnal Akademika Biologi Vol. 1 No. 1 Oktober 2012
Publisher : Departemen Biologi, Fakultas Sains dan Matematika Undip

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Abstract

Polychaeta is a biota that became one component of the food chain in the ocean. Having different tolerances, so it is often used as an indicator of changes in water quality. This study examines the composition of polychaeta which includes abundance, dominance, diversity, evennes, and its distribution patterns at two different locations, ie mangrove vegetation and fish farming areas. Location was chosen by looking the land use’s differences in the coastal area of Mangkang Kulon Tugu Subistrict Semarang. Sampling was conducted in July and August 2012. Analysis of physico-chemical parameters to the water samples and the substrate did directly in the field and laboratory. Samples of polychaeta were obtained by a 1 mm benthic sieve. Identifications are made to genus level. Then, calculating the number of genus, abundance, dominance, evennes, diversity and distribution patterns in each station. Overall, there are 15 genus come from polychaeta, they are Capitellidea, Nereididae,  Spionidae, Dorvillidae, Lumbrineridae, Cirratulidae, Oenoidae and Sabellidae. The average of polychaeta abundance index is in the above of 500 ind/m2. Diversity index (H') is relatively sufficient (1,332-2,073). Evennes index value (E) is high (>0,6) and there is no dominat genus with dominant index (D) low (<0.5). The distribution pattern is the same (Id: <1). The Differences sampling location affect on the composition and distribution patterns of the Polychaeta and physico-chemical factors. While sampling time does not affect the composition and distribution patterns of polychaeta and physico-chemical factors waters. Capitellidae is an opportunistic polychaeta that is more common in fish farming areas (70-81%) than in the mangorove vegetation areas (59 -72%). Keywords: Polychaeta, Mangkang Kulon, mangrove, fish farming, composition, distribution pattern,
Pengaruh Konsentrasi dan Frekuensi Pemberian Pupuk Organik Cair (POC) Terhadap Pertumbuhan dan Produksi Bawang Merah (Allium ascalonicum L.). Moh. Khanif Nasuha; Sarjana Parman; Rini Budi Hastuti
Jurnal Akademika Biologi Vol. 4 No. 2 April 2015
Publisher : Departemen Biologi, Fakultas Sains dan Matematika Undip

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Abstract

Shallots (Allium ascalonicum L) is a vegetable crop that has an important role in the economy  of  Indonesian  society.  This  can  be  seen  from  the  BPS  (Central  Bureau  of Statistics) on onion  consumption in the country in 2014 amounted to 935,000 tons. The high consumption of red onion  cultivation resulted not memperhatiakan environmental factors are often farmers excessive use of inorganic fertilizers, resulting in soil becomes solid. Giving treatment Liquid Organic Fertilizer (POC) is expected to increase growth and yield of onion because the content of the complete haranya both micro and macro, and is also able to improve soil quality. The purpose of this research know the effect of the concentration, frequency and interaction of liquid organic fertilizer on the growth and production  of  onion  (Allium  ascalonicum  L).  The  design  used  in  this  research  was Randomized Complete Block  Design (RCBD) factorial design with two factors, namelythe concentration  of  fertilizers  and  the  frequency  of  fertilizer  application.  This  study menggunakan6  treatment with a combination of concentration and frequency are K0F1 (0% 5 days), K0F2 (0% 10 days), K1F1 (25% 5 days), K1F2 (25% of 10 days), K2F1 (50% 5 days), K2F2 (50% of 10 days). Observations made during the 50 days after planting. Growth  parameters measured were plant height and number of leaves, the production parameters measured were wet weight, dry weight, and the number of tubers. Data analysis using ANOVA test and further tests using  test Duncan Multiple Test (DMRT) at 95% confidence level. The conclusion of this research is the  concentration of liquid organic fertilizer (POC) significantly affect the growth parameters and onion production and the frequency and interaction no significant effect on growth parameters and onion production. Keywords: onion, organic fertilizer, concentration, frequency.
PENAPISAN DAN PEMANFAATAN RHIZOBAKTERI TANAMAN JAGUNG (Zea mays) SEBAGAI INOKULAN PEMACU TUMBUH TANAMAN Debby Widiyanti; Sri Pujiyanto; Agung Suprihadi; Mamik Setyowati
Jurnal Akademika Biologi Vol. 5 No. 3 Juli 2016
Publisher : Departemen Biologi, Fakultas Sains dan Matematika Undip

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Abstract

Maize (Zea mays) is the second most important food commodity after rice plants. The role of the corn crop in agricultural commodities encourage the use of biological fertilizers to increase crop productivity of maize. The use of biological fertilizers open opportunities using rhizosphere bacteria as inoculants boosters grow plants.This study aims to obtain bacterial isolates from the rhizosphere of maize (Zea mays), characterize the morphology and biochemical properties of the ability to produce IAA, provide nutrients such as N and P and to get a bacterial inoculant boosters grow corn. Rhizosphere bacteria were isolated using SEA media (soil extract agar). Isolates that have the ability to produce IAA, tether N and high P solvents tested against corn seed germination and applied in a phase of plant growth. The results showed there were 24 isolates corn crop rhizosphere dominated by gram-positive bacteria and shaped basil capable of producing IAA grading 4,83 to 125,84 ppm. 16 rhizosphere bacterial isolates capable of dissolving phosphate with phosphate solubility index ranged from 2,1 to 4,6. 18 rhizosphere bacterial isolates capable of tether N with the highest N tether capacity of 2,8 x 10 3 CFU/ mL. Application 3 selected bacteria such as J11, J16 and J19 as inoculants are not able to increase the growth of corn plants compared to control water. Keyword :Maize, Rhizosphere, The growth of corn plants.
STRUKTUR KOMUNITAS LARVA TRICHOPTERA DI SUNGAI GARANG SEMARANG Lila Ris Purdyaningrum; Rully Rahadian; Fuad Muhammad
Jurnal Akademika Biologi Vol. 2 No. 4 Oktober 2013
Publisher : Departemen Biologi, Fakultas Sains dan Matematika Undip

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Abstract

River is the natural habitat for macrobiotic organisms, one of them is Trichoptera larvae.      Trichoptera larvae can be used as bio-indicator of water pollution because it is sensitive to environmental and habitat characteristics changes. The objective of this research is to examine the community structure of Trichoptera larvae in Garang River Semarang and the river quality based on the biological and physical-chemical factors. This study used survey method and purposive sampling technique to collect the sample.      The locations of the research are four stations which were determined by the land use around the river. Three samples were taken from each station by using 25 x 40 cm surber net. The findings show that the Trichoptera larvae found in four Garang River Semarang observation stations consisted of five genus; they are Cheumatopsyche, Chimarra, Glossosoma, Hydropsyche, and Tinodes. Relative abundance of Glossosoma and Cheumatopsyche at station I were almost balance, thus there was no dominant genus in the station. Trichoptera larvae dominated station II are Glossosoma and Hydropsyche. The Cheumatopsyche and Chimarra were the dominant genus in station III. While at the station IV, the researcher only found Hydropsyche. Trichoptera larvae which were highly diverse was in station III (H' = 1.41) and the lowest was in station IV    (H' = 0). Trichoptera larvae spread evenly in station I, station II, and station III, while station IV was dominated by genus Hydropsyche. In conclusion, the study showed that the highest density, abundance, and diversity level of the Trichoptera larvae in Garang River was in Tinjomoyo area, which had substrate rocks and fast water currents. Based on biological and physical-chemical factors, the condition of the four observation stations                        in Garang River could be grouped into two categories; not polluted and polluted. Keyword: Community structure, Trichoptera larvae, Garang River
EFEKTIVITAS KOMBINASI EKSTRAK BAHAN HERBAL (Mengkudu, Pepaya, Kunyit) TERHADAP DAYA HAMBAT PERTUMBUHAN Aeromonas hydrophila SECARA IN VITRO Dadi Pratama; Agung Budiharjo
Jurnal Akademika Biologi Vol. 6 No. 2 April 2017
Publisher : Departemen Biologi, Fakultas Sains dan Matematika Undip

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Abstract

. One of the alternative to overcome bacterial diseases of fish is by using herbal material that contain antibacterial. This study aimed to test the effectiveness of a combination of herbal material extract (noni, papaya and turmeric) in controlling the growth of bacteria Aeromonas hydrophila in-vitro. The research design used was Completely Randomized Design (CRD), which consists of 33 treatments and 3 replications. The parameters measured were the absorbance value (λ = 600 nm) of A. hydrophila growth after 18 hours of incubation and was measured by multiskan GO microplate spectrophotometer. This research was conducted through a two-stage test, the test MIC and FIC using microdilution method. MIC test result showed the minimum dosage of each herbal extract that is 1 µl/ml for noni extract, 2 µl/ml for papaya extract, and 1 µl/ml for turmeric extract. Values obtained FIC index is 0.250 (combination MP), and 0.375 (a combination of MK and PK). The combination of herbal material each extract showed synergistic interaction with FIC index values ≤ 0.5. Formula of the most effective and efficient than any combination is 1/8x noni and 1/4x papaya, 1/4x noni and 1/8x turmeric, 1/4x papaya and 1/8x turmeric.  Keywords: Antibacterial, A.hydrophila, FIC Indeks
Distribusi Vertikal Diatom Epipelik di Muara Sungai Banjir Kanal Timur Semarang Edwin Nurimansyah; Tri Retnaningsih Soeprobowati; M Murningsih
Jurnal Akademika Biologi Vol. 4 No. 4 Oktober 2015
Publisher : Departemen Biologi, Fakultas Sains dan Matematika Undip

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Abstract

Diatom is microalgae that has a wide distribution and cosmopolite. Diatom can be used as bioindicator of environment changes in the past, because of its sensitivity to habitat condition and its characteristic which can be fossilize. This research was conducted in Muara Sungai Banjir Kanal Timur Semarang. This location selected on the tide area. This reasearch aims to assess the abundance, diversity, and equal distribution of fossils diatom The research begins by taking samples of sediment to a depth of 34 cm and then sliced per-6 cm.The result was found 36 species diatom, the most abundant species is Pinnularia borealis Ehrenberg. Diversity index between 1.84 – 2,58 shows that the ecosystem in Muara Sungai Banjir Kanal Timur Semarang has environmental conditions are less stable until rather stable based its benthic diatom communities. Distribution the individuals number of each species evenly distributed on each layer. The dominance of diatom was found are Pinnularia (Pinnularia biceps, Pinnularia rabenhorstii, Pinnularia borealis), it’s dominance in each layer. Keywords: bioindikator, diatom, muara Sungai Banjir Kanal Timur Semarang.

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