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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 34 Documents
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Search results for , issue "Vol 10, No 4 (2011)" : 34 Documents clear
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.
IDENTIFIKASI GALUR-GALUR PADI MUTANINSERSI TOLERAN DAN RENTAN CEKAMAN SALINITAS BERDASARKAN KARAKTER MULTIVARIAT PERTUMBUHAN DAN BIOKIMIA PADA FASE VEGETATIF Apriadi Situmorang; Anky Zannati; Dwi Widyajayantie; Satya Nugroho
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.v10i4.765

Abstract

Growth and biochemical characters of thirty-three Nipponbare-based rice mutant lines independently harboring activation-tag in salt stress condition were investigated. Rice cv Nipponbare wild type, IR29 and Pokkali were used as isogenic, susceptible, and tolerant cultivars, respectively. Plants were grown in Yoshida nutrient solution containing NaCI (6 g/1) as the stress treatment and in Yoshida nutrient solution without NaCI as the control. Evaluation of salt tolerance was conducted at 21 days after salinization.The results showed that there was a significant difference in growth characters among genotypes in reduction of the plant height,root length, shoot fresh weight, root fresh weight, shoot dry weight, as well as in the root dry weight. Biochemical characters of the genotypes also showed significant difference in their reduction of chlorophyll-a and chlorophyll-b concentrations,total carotenoids and proline accumulation. Based on multivariate growth and biochemical characters,T3.PMO.VI.63.5a.30.9,T3.PMO.VI.30.1a.21.1, T3.PMO.V1.63.5a.33.7F3.PUR.IX.49.1d.l.6.5,T3.PMO.VI.81.3a.4.4, F3.PUR.IX.49.1d.l.6.5,and F3.PUR.VIII.5.1f.l.4.8 were assumed as potential salt-tolerant lines, respectively, while mutant lines T3.PMO.VI.30.1a.l07.7,T3.PMO.VI.63.5a.20.6,T3.PMO.III.4.4c.7.2,andT3.PMO.VI.30.1a.51.1 were assumed as salt-susceptible lines respectively.
EVALUASI KONDISI HUTAN BERDASARKAN KERAGAMAN KUMBANG SUNGUT PANJANG (COLEOPTERA, CERAMBYCIDAE) 1 DI KAWASAN GUNUNG SLAMET Woro Anggraitoningsih Noerdjito
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.v10i4.770

Abstract

Evaluation of forest conditions using longhorn beetles (Coleoptera: Cerambycidae) fauna have been carried out at 3 parts of Mt. Slamet which are, northern part through Guci, southern part through Kalipagu, Baturraden and easthern part through Bambangan. In northern parts, research activities were conducted at about 1200-2500m above sea level (m.asl.), in southern part, research activities was conducted at about 700-1000m m.asl and in eastern part research activities was conducted at about 1500-2400m asl.Out of the 37 species of longhorn beetles were collected during this research, dominated by Sybra fuscotriangularis (55 specimens). The longhorn beetles collected in southern part, indicated lowest individual number (36 spesimen) but indicating hightest species number. In the contrary, the highest number of spesimens collected but lowest species number (10 species) was collected in the eastern part, while in northern part, it was collected 86 individu (17 species).The species compositions and the number of individuals of longhorn beetles collected from each parts (northern, southern and easthern part) were different with specific groups. Longhorn beetles species collected from secondary forest was similar to the primary forest.Distribution pattern of longhorn beetles in Mt. Slamet indicated that some forest species were found at certain altitude such as Batocera spp and Gnoma thomsoni which only found at 700-1000m asl. The forest area which this altitute (700-1000m asl.) was located at the southern part of Mt Slamet (Kalipagu, Baturraden) where known as the main support of water reservoir for electric power and seven spout water (Pancuran Tujuh). Thus this area has to be conserved from illegal logging and human activities.
KEONG HAMA Pomacea DI INDONESIA: KARAKTER MORFOLOGI DAN SEBARANNYA(MOLLUSCA, GASTROPODA: AMPULLARIIDAE) Nur Rohmatin Isnaningsih; Ristiyanti M Marwoto
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.v10i4.761

Abstract

The golden apple snail Pomacea is an invasive species not only in Indonesia but mostly in Southeast Asia. The snail caused serious damaged on more than thousands hectares of rice-fields. The study was based on the specimens deposited at the Museum Zoologicum Bogoriense (MZB)aimed to evaluate the occurrence of Pomacea and its distribution in Indonesia.Based on the shell characters there are four species recognized which are P. canaliculata, P.insularum, P. scalaris, P.paludosa that found from many places, and noted that P. canaliculata has wider distribution from Sumatra to Papua. The description of each species was presented at this paper as well as the map of the occurrence of Pomacea in Indonesia.

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