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Bioma : Berkala Ilmiah Biologi

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Published by Universitas Diponegoro

ISSN : - EISSN : 25982370 DOI : -

Core Subject : Education, Agriculture,

Agriculture, Biological Sciences & Forestry Education

BIOMA (ISSN 1410-8801) adalah Majalah Ilmiah Biologi yang bertujuan mewadahi semua informasi hasil penelitian, telaah pustaka, makalah teknis, dan kajian buku, dari berbagai cabang ilmu Biologi. Diharapkan penerbitan ini dapat berkontribusi dalam penyampaian informasi ilmiah yang merupakan mata rantai proses kegiatan ilmiah. Terbit sejak tahun 1999.

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Search results for , issue "Vol. 20, No 2, Tahun 2018" : 12 Documents clear

Struktur Komunitas Plankton sebagai Indikator Kualitas Perairan Budidaya di Tambak Lorok Semarang Makhfudhoh, Dzunnuroini Khanif; Hidayat, Jafron Wasiq; Muhammad, Fuad
Bioma : Berkala Ilmiah Biologi Vol. 20, No 2, Tahun 2018
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/bioma.20.2.145-153

Plankton is organisms that had an important role in water as natural feed of fishes and as an indicator. This study aimed to identify water quality which was suitable for fish cultivation reviewed from physics-chemicals parameters of water and its saprobic status in Tambak Lorok Tanjung Mas Kota Semarang. Sampling were take based on 5 stations that could represented from plankton variety of condition water stability . Plankton samples were by using net plankton number 25, then preserved with alcohol 70% and formalin 4%. Variables of ponds water quality measured were temperature, salinity, dissolved oxygen, pH, turbidity, N concentration, and Pb content. Identification of planktons used SRC method under microscop. The result of plankton analysis in Tambak Lorok water showed 42 phytoplankton species, the commonly species found are Coscinodiscus centralis, Coscinodiscus granii, Gyrosigma sp., Navicula radiosa, Pandorina sp., and Melosira sp. Meanwhile, zooplankton found was 22 species with common species are Cyclops, Harpaticoida, Tricodesmium evythraeum, Brachinus plicatilis, and Lensia subtilis. Phytoplankton diversity index are 0.057-0.367 and equity index are 0.025-0.176. Zooplankton diversity index are 0.247-0.360 and equity index are 0.157-0.201. This indices showed that there were low level of species diversity and community stability, dominance since the species occurred. Measurement of water quality variables indicated that Tambak Lorok had been contaminated and needed a preliminary management before d be used as fish cultivation ponds, because the analysis result was not appropriate with Government water qualityÂ regulation. Based on the measurement, soprobic index categories on Î±/Î²-Mesosaprobic to Oligosaprobic phase and the degree of pollution is very mild to moderate.Â Keywords :Â Community Structure, plankton, Tambak Lorok, Tanjung Mas, SemarangÂ Â Â

Pengaruh Komposisi Azolla pinnata Pada Pakan Terhadap Pertumbuhan Ikan Bandeng (Chanos chanos Forsskal) di Balai Besar Perikanan Budidaya Air Payau (BBPBAP) Jepara Wicaksono, Andy; Muhammad, Fuad; Hidayat, Jafron Wasiq; Suryanto, Damang
Bioma : Berkala Ilmiah Biologi Vol. 20, No 2, Tahun 2018
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

Milkfish is one of the main commodities in the field of fishery and is known to be the most cultivated. One of the importantâ€™s factors to the success of milkfish cultivation is feed availability, both quality and quantity. Feed quality is an important aspect that must be fulfilled because of its relation to nutrients required for the fish growth. Azolla pinnata has a good potential that can be used as an additional ingredient for the fish growth because of its protein-rich content. This study is aimed to examine the effect of Azolla pinnata powder feed on growth of milkfish (length and body weight). This research was conducted in May â€“ July 2017 at Aquatic Animal Health Management Laboratory, Center of Brackish Water Aquaculture of Jepara. The research design used is a Complete Randomized Design (CRD), using five treatments with different concentrations of Azolla pinnata powder, i.e. 0% as control, 10%, 20%, 30%, and 40%. Each treatments consist of three repeatitions. The parameters observed were milkfish growth (length and body weight) and dissolved oxygen (DO). Data were analyzed by Analysis of Variance (ANOVA) method. If the data showing significant differences it will be continued with Least Significance Different (LSD) test. The results showed that the administration of Azolla pinnata powder on the feed significantly influenced the growth (lenght and body weight) of milkfish. The most optimal and efficient feed composition for milkfish growth is done by feeding 40% of Azolla pinnata powder. The overall dissolved oxygen (DO) is still in suitable condition for the cultivation of milkfish.Â Key Words :Â Azolla pinnata, dissolved oxygen, feed nutrition, milkfish

Studi Populasi dan Habitat Owa Jawa (Hylobates moloch Audebert 1797) di Kawasan Wana Wisata Kali Paingan Linggo Asri, Pekalongan, Jawa Tengah Putra, M. Fadhil Randa; Baskoro, Karyadi; Hadi, Mochamad
Bioma : Berkala Ilmiah Biologi Vol. 20, No 2, Tahun 2018
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

Javan Gibbon (Hylobates moloch) is an Indonesian endemic primate found on Java, in the province of West Java and Central Java. It is an Endangered species by IUCN and protected by Ministry of Environment and Forestry regulation No. P20/2018. Wana Wisata Kali Paingan was known as Javan gibbon habitat in Central Java, although not much research have been done. This study aimed to find out the population data and habitat of Javan Gibbon. This study was conducted in Wana Wisata Kali Paingan during April until May 2018 and Line Transect method was used in two tracks, Kali Wadas and Jurang Jero, with 1 kilometer and 5 repetition each. Result showed that 12 individuals in 4 groups was found with the density was 13,75 individuals /km2 and 4,39 groups/km2. Then at 6,7 km2 representative area the estimation was obtained 92 individuals and 29 groups. Javan gibbons were distributed from 630-780 MASL with the different sizes of groups. There were 25 species in 21 families trees and 4 species in 4 family poles was found. The dominant species was bamboo (Bambusa vulgaris) and terap tree (Artocarpus elasticus). Javan gibbonâ€™s favorite food trees were Terap tree, Ficus (Urostigma glaberrium) and (Ficus sinuata). There were several families of food trees for Javan gibbons including Moraceae, Euphobiaceae, Meliaceae, Lauraceae, and Fagaceae.. Â Â Keywords : Javan gibbon, Population, Habitat, Wana Wisata Kali Paingan

Kadar Kolesterol Daging Pada Keturunan F1 Dari Induk Puyuh Jepang (Coturnix coturnix japonica L.) Yang Diberi Suplemen Tepung Kunyit (Curcuma longa L.) Dalam Pakan Andriani, Regita; Saraswati, Tyas Rini; Tana, Silvana
Bioma : Berkala Ilmiah Biologi Vol. 20, No 2, Tahun 2018
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

Quail is one of poultry commodities that compliance the needed of animal protein like egg and meat. Good quality was breed from quail parent that has good physiological condition. This research aimed to quantified cholesterol of quail meat from F1 from quail parent that treatment using turmeric powder supplement on itsfed in order to obtained best quail chick with good physiological condition. This research use Completely Randomized Design (CRD) experimental method. Animal on this research was 15 Japanese quail (Coturnix coturnix japonica L.) hens that gave 3 treatments with 5 repetitions. K0 was F1 of quail parent without turmeric powder supplementation, K1 was F1 of quail parent with 54 mg/quail/day turmeric powder supplementation before its sex period, K2 was F1 of quail parent with 108 mg/quail/day turmeric powder supplementation before its sex period. The F1 quail was fed using standard quail feed. Data was obtained from daily fed consumption average, daily water consumption, and quail meat cholesterol rate on 60 day old chicken. Data was analyses using Analysis of Variance (ANOVA). This research result showed that daily fed consumption, daily water consumption and meat cholesterol rate of F1 that treatment using turmeric powder supplementation wasnâ€™t show significant difference, so conclusion of this research is physiological condition of F1 was normal.Â Key words: Quail Meat Cholesterol, F1 of Japanese quail (Coturnix coturnix japonica), Turmeric powder

Pengaruh Perendaman Akar Bibit Bayam Merah (Alternanthera amoena Voss.) dalam Larutan Na2CuEDTA terhadap Pertumbuhan dan Kandungan Antosianin Aini, Nabilah; Nurchayati, Yulita; Suedy, Sri Widodo Agung
Bioma : Berkala Ilmiah Biologi Vol. 20, No 2, Tahun 2018
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

Red spinach is one of plants containing anthocyanin pigment which has various functions as food and beverage dye, and play a role in the field of health. Anthocyanin biosynthesis in plants is influenced by environmental factors, one of them are nutrients. One of the nutrients needed by plants and part of the anthocyanin biosynthesis pathway is copper (Cu). Cu can be added in the form of a fertilizer such as Na2CuEDTA. This research aims to study the effect of soaking the red spinach in Na2CuEDTA solution on growth and anthocyanin content, and knowing the optimal Na2CuEDTA concentration for growth and anthocyanin content of red spinach. This research conduct to Complete Random Design of single factor pattern with 5 treatments and 5 replications which are aquades, nutrient solution, nutrient solution+Na2CuEDTA 5 ppm, nutrient solution+Na2CuEDTA 10 ppm, nutrient solution+Na2CuEDTA 20 ppm. Sprouts red spinach that already has 4 leaves soaked in the treatment solution for 10 days, then the plants moved into a soil medium inside the pot for 20 days. The analyzing data which is used is ANOVA continuing with further testing of Duncan Multiple Range Test (DMRT) at the 95% significance level. The result of this research show that soaking of red spinach in Na2CuEDTA solution did not show any significant effect on growth. The growth of red spinach plant is more influenced by nutrient solution while the anthocyanin contents is influenced by nutrients in soil medium.Â Key words : Red Spinach, Copper, Anthocyanin, Na2CuEDTA

Uji Aktivitas Inhibisi Î±-Glukosidase Isolat Bakteri Endofit Tanaman Duwet (Syzygium cumini L. Skeels) Sebagai Sumber Alternatif Antidiabetes Fatin, Nuhaul; Pujiyanto, Sri; Raharjo, Budi
Bioma : Berkala Ilmiah Biologi Vol. 20, No 2, Tahun 2018
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

Diabetes mellitus (DM) is a metabolic disease contributes to the health problem in Indonesia. The inhibition of Î±-glucosidase is one of the mechanisms of antidiabetic treatment. Î±-glucosidase inhibitor can be found in the duwet plants (Syzygium cumini L. Skeels) Â that have been used traditionally in Indonesia as antidiabetic drug. However, due to the insufficient quantity and the long harvesting time, the forthcoming appliclation of duwet is consideraly not promising. The natural tendencies of endophytic microorganisms are identicl to the host plant. In this case the endophytic bacteria of the duwet plant is studied to determine its potential as an alternative to producing Î±-glucosidase inhibitors. A total of 14 isolates of endophytic duwet bacteria isolated tested the ability of Î±-glucosidase inhibitors using p-nitrophenyl-D-Î±-glucopyranoside. The result ofÂ the absorbance based on breakdown of substrate that produce colored product and analyzed by spectrophotometric technique. All isolates had Î±-glucosidase inhibitor activity, the highest activity produced by isolates A21 and A22 with value of 69,18% and 69,22%.Â Keywords : inhibitor Î±-glucosidase, endophytic bacteria, Syzygium cumini

Karakterisasi Uwi-Uwian (Dioscorea spp) Dari Banjarnegara Berdasarkan Penanda Morfologi Pertiwa, Susy Ika; Jumari, J; Wiryani, Erry
Bioma : Berkala Ilmiah Biologi Vol. 20, No 2, Tahun 2018
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

Â Â Â The diversity of Dioscorea spp. both inter-species and intra-species are spreaded in several areas in Central Java, including Banjarnegara.Â Dioscorea is aÂ plant that has the potentials to be developed and cultivated. The purposes of this reasearch are to identify the species, characterize the morphological characters (stem, leaf, and tuber) of eight varians Dioscorea spp from Banjarnegara. The sample used in this reasearch are the eight varians of Dioscorea spp from Banjarnegara.Â The Identification was done by using a identification keys. Characterization of morphological characters was done by using the guidebook of Descriptor for Yam. The results showed that eight cultivars of Dioscorea spp are grouped into two types: Dioscorea alata and Dioscorea esculenta. Dioscorea alata has a stem which rotate the to the right, rectangular shaped of stem, itâ€™s has wing and doesnâ€™t have a spin, elongated heart-shaped leaves, oval-oblong and round shaped tuber. Dioscorea esculenta has a stem which rotate to the left, rounded shaped of stem, it has not wing but spiked, dilated heart-shaped leaf, and oval shape tuber. Â Keywords: Dioscorea spp, identifikasi, characteristic, morphology,

Pengaruh Pemberian Virgin Coconut Oil (VCO) dan Olive Oil terhadap Mikroanatomi Ren Tikus Putih (Rattus norvegicus) Nurasri, Riani; Wachidah Yuniwarti, Enny Yusuf; Djaelani, M Anwar
Bioma : Berkala Ilmiah Biologi Vol. 20, No 2, Tahun 2018
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

Virgin Coconut Oil (VCO) and olive oil have been widely applied in the field of health. Saturated fatty acid content of VCO dominates the total fatty acid content of about 85%. Olive oil contains a lot of oleic acid, which is one type of unsaturated fatty acid (mono-unsaturated fatty acid). This study aimed to analyze the kidney microanatomy rat (Rattus norvegicus) after supplementation with VCO and olive oil in the feed. This study used 25 rats were divided into five treatment groups, P1 was the control group, P2 was a group with VCO 5 mL / kg feed, P3 was a group with VCO 10 mL / kg of feed, P4 was a group with olive oil 5 mL / kg feed and was a group with olive oil 10 mL / kg of feed. The results of ren weight and diameter rat glomerular analyzed using analysis of variance (ANOVA). Research design used was completely randomized design with five treatments and five replication. Results of studies on weight ren showed no significant difference between treatments P2, P3, P4 and P5 to the control (P1). The results of the glomerular diameterÂ shows there is significantly difference between the diameter of the glomerulous treatment P2 and P3 with control (P1), while in treatment P4 and P5 are not significantly different from the control so that it can be concluded that the administration of the VCO and olive oil at various concentrations do not give rise to different responses to weight ren. Olive oil does not increases glomerular diameter white mice, while VCO at a dose of 5 mL / kg feed and 10 mL / kg of feed can increased glomerular diameter mice.Â Keywords: ren weight, glomerular diameter, Virgin Coconut Oil (VCO), olive oil.

Keanekaragaman dan Kemelimpahan Jenis Tumbuhan Invasif di Hutan Wisata Penggaron Kabupaten Semarang Jawa Tengah Utami, Sri; Murningsih, M
Bioma : Berkala Ilmiah Biologi Vol. 20, No 2, Tahun 2018
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

Forests are ecosystems that have very potential natural resources, including storing high genetic resources. One of the things that threatens the decline of genetic resources in the forest is the presence of invasive species. This study aims to determine the species of invasive plants and their abundance in the Penggaron tourism forest of Ungaran Regency, Central Java. The research method was carried out by exploring the entire forest area through the path. The results of the study showed that 13 species of invasive plants were included in 7 families. The most number of invasive plants from the Poaceae family include 5 species : Axonopus Compressus, Cynodon dactylon, Pennisetum purpureum, Paspalum conjugatum and Eleusine indica. The highest relative abundance was Eleusine indica and was followed by Synedrella nodiflora, Elephantopus scaber and Paspalum conjugatum. The species of invasive plants, especially the abundant ones, need to be controlled by the population so as not to threaten native plants and cause environmental degradation in Penggaron tourism forests.Â Key word : Invansive plant, Penggaron tourism forest, genetic resources.

Glikogen Otot Rangka Ayam Broiler (Gallus gallus) setelah Pemberian Teh Kombucha dalam Air Minum Fathoni, Nasrul; Djaelani, M Anwar; Isdadiyanto, Sri
Bioma : Berkala Ilmiah Biologi Vol. 20, No 2, Tahun 2018
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

Kombucha tea beverage obtained by fermenting sweetened green tea for 12 days with Acetobacter xylinum and Saccharomyces which produce various kinds of organic acids, vitamins, and acts as a probiotic. The role of kombucha tea as a growth promoter is to that improve the metabolic process in the digestion of broiler chickens, so that nutrients can and fulfilled optimally for growth and development. The aim of this research was to analyze the sceletal muscle glycogen glycogen (Gallus gallus) after treat with kombucha tea in drinking water. Kombucha tea used is the result of fermentation of green tea for 12 days. This research used DOC chickens (Day Old Chicken) as much as 20 randomly divided into 4 treatments with concentration ie 0%, 10%, 20%, and 40% kombucha tea in drinking water for 32 days. The variables measured were skeletal muscle glycogen levels, body weight, feed consumption and drink consumption. The data obtained were analyzed using ANOVA followed by Duncan Test with 95% confidence level using SPSS 17.0 software. The results of this study showed that kombucha tea on skeletal muscle glycogen and feed consumption showed no significant difference, while on body weight and drink consumption showed significantly different results. Based on the results of the study, it can be concluded that giving kombucha tea in drinking water to a concentration of 40% has not been able to affect the skeletal muscle glycogen in broiler chickens.Â Key words: Kombucha tea, broiler chicken, glycogen skeletal muscle

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