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INDONESIA
BERITA BIOLOGI
Published by Lembaga Ilmu Pengetahuan Indonesia
ISSN : -     EISSN : -     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology
Arjuna Subject : -
Articles 2,125 Documents
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PEMBESARAN IKAN BAUNG {Hemibagrus nemurus) YANG DIBERI PAKAN BERBEDA DIKOLAM TANAH Gleni Hasan Huwoyon; Ningrum Suhenda; Aditiya Nugraha
BERITA BIOLOGI Vol 10, No 4 (2011)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v10i4.774

Abstract

Green catfish is a commodity that is not only potential to be cultivated in the pond and in the floating net cages, but also easy to adjust to the artificial feed. The objective of this research is to evaluate the effect of different feed types (sinking and floating)on the growth performance of green catfish(Hemibagrus nemurus.One thousand and six hundred fingerlings averaging 2.50 g of 3 individual body weight were stocked in each of earthern ponds (10 x 8 x 1.2 m ). They were fed daily for four months with the same protein content (31%) and lipid (6%) diets. The feed was given in pelleted form at 8-4% of the total body weight. The result of this study showed that no significant difference (P>0.05) between different feed types. The sinking feed gave specific growth rate (2.35%), feed conversion ratio (2.49), protein retention (18.92%) and protein efficiency ratio 1.13 while the floating type gave the values 2.49%, 2.37, 20.48% and 1.21, respectively. Lipid retention of sinking feed (34.84%) is lower than that of floating type(48.39%).The survival rates ranged between 76.56-84.54%.Feed type sinking with protein content of 31% can be used in the rearing of fish in earthern pond.
MAKROZOOBENTOS YANG BERASOSIASI DENGAN PADANG LAMUN DIPERAIRAN PULAU BARRANG LOMPO, MAKASSAR, SULAWESI SELATAN Magdalena Litaay; Dody Priosambodo; Harald Asmus; Amrullah Saleh
BERITA BIOLOGI Vol 8, No 4 (2007)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v8i4.2120

Abstract

A study on community structure of macrozoobenthos was conducted in the vicinity of seagrass beds Barrang Lompo Island Waters,Makassar. The aim of this study was to investigate species composition, density of macrozoobenthos in the area.Total of 27 species macrozoobenthos were identified during this study.Modiolus micropterus is the most dominant species with density of 542 individu/m .The highest diversity index was found in southeast side (2.38) while northeast side has diversity index only 0.70. Macrozoobentos composition in both station were different with similarity index of 21%.
PENGARUH PEMBERIAN TIGA MACAM MAKANAN BUATAN TERHADAP LAJU PERTUMBUHAN UDANG REGANG MACROBRACHIUM SINTANGENSE DAISY WOWOR
BERITA BIOLOGI Vol 2, No 7 (1983)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v2i7.1405

Abstract

Salah satu problem utama dalam pemeliharaan kadang ialah pemenuhan kebutuhan akan makanan tambahan bagi pertambahan laju pertumbuhan iLing 1972, Willis et al 1976, Suharto 1977) yang efisien.Makanan tambahan tersebut dapat berupa cacahan daging, makanan kering atau bentuk-bentuk lainnya. Mulai awal September 1979 sampai dengan pettengahan November 1979 telah diadakan pengamatan terhadap laju pertumbuhan udang regang Macrobrachium sintangense (de Man) yang diakibatkan karena pemberian tiga macam makanan buatan yang dibuat dari bahan makanan yang sederhana.Udang tersebut adalah udang air tawar yang umum dijumpai dan dapat dipelihara di akuarium tanpa banyak mengalami kesukaran dan perlakuan (Sabar, 1979).
KEANEKARAGAMAN DIPTERA (INSECTA) DI GUNUNG KENDENG DAN GUNUNG BOTOL, TAMAN NASIONAL GUNUNG HALIMUN, JAWA BARAT Tri Atmowidi; Taruni Sri Prawasti; Sugeng Utomo; Yana Kurniawan
BERITA BIOLOGI Vol 5, No 6 (2001)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v5i6.1084

Abstract

Diptera is one of the four largest orders of insects (the three others are Coleoptera, Lepidoptera and Hymenoptera).Presently, about 108 families of Diptera were recoqnized and over 150.000 species have been described worldwide.This study was conducted to explore the diversity of Diptera in Gunung Halimun National Park, West Java.Sampling of Diptera has been conducted in Mt. Kendeng (1.200 - 1.300 m asl) and mount Botol (1.650 and 1.750 m asl) using yellow pan traps, Malaise traps, light traps, and sweep nets. The diversity of Diptera were analyzed using Shannon's diversity index and evenness, and Jaccard's similarity index (Magurran 1987). In this study, we found 49 families of Diptera (12 families are Nematocera and 37 families are Brachycera). The diversity of Diptera in Mt. Kendeng was higher (Shannon diversity index; H' =2.92) than that in Mt. Botol (H' = 2.46). The similarity of Diptera in Mt. Kendeng and Mt. Botol was 60%(Jaccard's similarity index; Cj=0.6).
ANALISA GENETIK PISANG HIBRID DIPLOID BERDASARKAN MARKA RAPD (Random Amplified Polymorphic DNA) Diyah Martanti; Yuyu Suryasari Poerba; Herlina Herlina
BERITA BIOLOGI Vol 16, No 3 (2017)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v16i3.2263

Abstract

Banana breeding by crosses is one way to get new cultivars with a better quality. This study aims to verify molecular characteristic of diploid hibrid bananas i.e MDRK, SNMT and MDMT using Random Amplified Polymorphic DNA (RAPD) markers. Ten RAPD primers have been selected to detect the differences in molecular pattern from all three diploid hybrid bananas. The results showed that the hybrid combination of MDRK, SNMT and MDMT produced bands that shared some similarities with each parents by 43.83%, 51.25% and 47.21% respectively as the number of bands from type I, III and IV markers. Type III marker is the important marker for identification of male parents. Type VII marker (non-parent bands) was detected from hybrid MDRK, SNMT and MDMT by 18 (20.22%), 6 (7.5%) and 11 (12.64%) respectively. Marker of type VII can be used to identified hybrid because they are present only in offspring. The highest polymorphic bands was obtained by SNMT (83.9%) and the lowest obtained was performed by MDMT (71.25%). From this result, RAPD markers can be used as a tool to detect the differences of molecular pattern of diploid hybrid bananas.
PENAMPILAN TANAMAN KONSERVASI EX-SITU EBONI (Diospyros celebica Bakh.) Budi Santoso; Chairil Anwar
BERITA BIOLOGI Vol 6, No 2 (2002)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v6i2.1506

Abstract

Kegiatan konservasi ex-situ dilaksanakan sejak tahun 1996.Materi konservasi berasal dari 7 tempat asal (Karaenta, Barru, Duapitue,Kaluku, Malili dan Maleali) dengan rancangan penanaman menggunakan rancangan acak lengkap berblok.Hasil pengamatan pada umur 3 tahun di antara tanaman eboni yang berasal dari berbagai tempat asal, tidak cukup bukti untuk mendeteksi adanya keragaman antara tempat asal untuk parameter persentase tumbuhan.Sedang untuk pertumbuhan tinggi dan diameter keragaman antara tempat tumbuh nampak jelas dan ada kecenderungan tempat asal yang lebih tinggi (dpi) menunjukkan lebih baik.Ruas tanaman eboni berbeda nyata di antara tempat asal, yang berarti ada indikasi faktor genetika memberikan konstribusi cukup besar terhadap munculnya keragaman jumlah ruas.
AKTTVITAS SELULASE, AMILASE DAN INVERTASE PADA TANAH KEBUN BIOLOGI WAMENA M Rahmansyah; HJD Latupapua
BERITA BIOLOGI Vol 6, No 5 (2003)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v6i5.1192

Abstract

Enzymatic activities in soil as due to microbes action in organic matter degradation, lead to propose as indicators for determining soil degree enrichment.In this work, the enzymatic activities of cellulase, invertase and amylase were determined in tropical soil collected from Biological Research Station in Wamena. Result of measurement on five soil samples showed that cellulase activity occurred between 0.10 - 0.31 mg reducing sugar/g soil/hour in 2% Carboxymethylcellulose (CMC) substrate, and about 0.15 - 0.25 mg reducing sugar/g soil/hour in 0.5% Avicel substrate.Amylase and invertase assayed in 6% of amylum and 6% of sucrose substrates correspondingly; and its activities between 2.55 - 3.54 and 0.59 - 1.30 mg reducing sugar/g soil/hour, respectively. Correlation of enzymatic activities and soil organic-C content (1.35 - 2.70%) of soil layer was significant in selulase and amilase, but it was poor correlation in invertase activity.
KUALITAS KRIOPRESERVASI SEMEN RUSA BAWEAN {Axis kuhlii (Temminck, 1836)} HASIL PENANGKARAN Wirdateti Wirdateti; R Taufiq P Nugraha; G Semiadi; SK Widyastuti; Yulianto Yulianto
BERITA BIOLOGI Vol 12, No 3 (2013)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v12i3.645

Abstract

Bawean Deer {Axis kuhlii (Temminck, 1836)} is an endemic deer species from Bawean island, Indonesia. Under the National Protection act, the species is listed as protected and in the IUCN is categorized as Critically Endangered. In order to maintain the existence of these species, wildlife conservation of germplasm is needed through development of technique of sperm cryopreservation for Bawean deer semen. The sperm were collected from captive animals in Station for Beef Cattle Research Center, Ministry of Agriculture, at Grati, Pasuruan, which consisted of two adult males and two sub-adult males. The research objective was to determine the quality and quantity of preserved sperm from captive deer Bawean in the form of frozen semen for conservation needs and further usage. Prior to sperm collections, the animal was anesthetized with mixture of xylazine and ketamin. Sperm was then collected by an electroejaculator using a 2-cm probe diameter and 17 cm of length. Extender solution used was tris glycerol. The semen was able to be collected only from two adult stags with sperm motility of 50-60% and sperm concentration was in the range of 500-1140 x 106sel/ml. This study suggested the need for monitoring the developmentof sperm in relation to antler development.
INTERSPECIFIC ASSOCIATION PATTERNS AND EDAPHlC FACTORS' INFLUENCES: A CASE STUDY OF Orania regalis Zippelius IN WAIGEO ISLAND, WEST PAPUA [Pola Asosiasi Antarspesies dan Pengaruh Faktor Edafik: Studi Kasus Orania regalis Zippelius di Pulau Waigeo, Papua Barat] Didik Widyatmoko
BERITA BIOLOGI Vol 9, No 5 (2009)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v9i5.1998

Abstract

Tropical plant community ecology is often assumed to be driven largely by stochastic disturbance, regeneration and demographic processes. The influence and importance of physical and biotic components are rarely taken into account. Consequently, scientific findings in this field are very limited. Tropical soils are in fact more diverse than usually is recognized. This study was conducted to test hypotheses about the importance and influence of edaphic parameters and association patterns in determining the abundance and distribution of the Papuasian palm Orania regalis Zippelius and its co-occurrence with other plant species. The results showed that a number of interrelating edaphic factors, in combination, appeared to explain the abundance and occurrence of O. regalis. This palm showed a preference for wet, but well-drained soils, with high magnesium (Mg ) and calcium (Ca *)contents. The three largest colonies occurred in sites where Mg * content was high. On the other hand, high alkaline concentrations corresponded to the absence of the palm. Eight of 14 tropical plant species were positively associated while six species were negatively associated with O. regalis. For five species (Licuala gramnifolia, Tabernaemontana aurantiaca, Intsia bijuga, Vatica rassak,and Palaquium obovatum), the association with O. regalis was strong, as indicated by their Ochiai indices (>0.5).The palms L. gramnifolia and Sommieria leucophylla appeared to have similar ecological preferences and habitat requirements with O.regalis. The palm tended to occupy sites with lower C/N ratios and all known colonies occurred in habitats with average C/N values of less than 10. Based on the r-squared values, exchangeable Mg* appeared to have more influence on plant density and frequency than on basal area and canopy circle area. The exchangeable Ca * and C/N values showed a similar pattern to Mg contents.However, K ., Na ., Al and H contents did not show significant relationships with the palm abundance parameters. These findings suggest that edaphic variables and plant association patterns are important determinants of the abundance and occurrence of tropical plant species.
PENGARUH KETUAAN TERHADAP KECEPATAN RESPIRASI DAN KANDUNGAN KIMIA PADA PEMASAKAN BUAH AVOKAD H. SUTARNO; N.W. UTAMI
BERITA BIOLOGI Vol 3, No 5 (1986)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v3i5.1332

Abstract

H. SUTARNO & N.W. UTAMI. 1986.Influence of maturity on respiration rate and chemical constituents of avocado fruits during ripening period.Berita Biologi 3(5) : 209 - 213. Changes of respiration rate and chemical constituents of avocado fruits as affected by various maturity (18 - 24 weeks from blooming) were observed during incuUbation peiiod at 28 ±1 C.Results of these experiments were intended to know the best time for harvesting based on their cell vitality and chemical constituents. Those indicated that 20 weeks from blooming was the best time for obtaining higher oil content (12.48%) and carotenoid content (968.6l.U.) of ripening fruits. The relationship between respiration rate and changes of oil content and carotenoid content were discussed.

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