Judul: Keragaan ikan nila BEST Oreochromis niloticus hasil seleksi di karamba jaring apung Danau Lido, Bogor
Abstrak: The strain BEST (Bogor Enhanced Strain Tilapia) is a new strain of tilapia developed from the sixth generation of GIFT (Genetic Improvement of Farmed Tilapia). Genetic environmental test of BEST has been done in various environment, one of them is in Lido lake. The objective of this research is to evaluate some commercial parameters (growth, SR, etc.) 9 families of BEST in experimental floating net cages. This research was conducted using 27 days-old fry, feeding with 10% of biomass daily for 60 days. Every family reared in floating net cage with density of 60 fish/m3. Observation data of weight, length and survival rate (SR) were collected every 10 days by sampling 50 fish from each family. The result showed that, the family 9 gave the highest growth rate. The family 9 had the highest daily growth rate, both in term of weight and length. Family 7 has varied in parameter observed value. The family 3 provided the highest SR and biomass. The results of this research shown that the population of family 3 had the highest production level. The study is also showed that the real heritability value is 0.009. This study recommend that the family 3 could be use as the candidate in the further selective breeding program.
Keyword: 

Judul: Kinerja Pertumbuhan Ikan Nila Oreochromis niloticus Strain BEST pada Media Pemeliharaan dengan Derajat Kemasaman Berbeda
Abstrak: In Indonesia, peat land has pH degree that is relatively high, ranged from 3-5. Tilapia which is one of the superior commodities, is expected to be introduced in peat land as well as conducted with catfish. In order that, the production of tilapia is able to be improved optimally in more aquaculture lands of Indonesia. The objective of this study is analyze the work of growth in BEST tilapia strain, include Survival Rate, Specific Growth Rate, the growth of absolute length, amount of feed consumtion, feed efficiency, rearing media with acidity degree 3, 4, 5, and 6. Tilapia strain BEST that are used in the study size from 4,52±3,9 cm long and 1,35±0,3 g weight. The tilapias were placed in 12 aquariums with 60x50x40 cm in size and density as many as 40 fish each. The feed is the made-up feed (pellet) and given 3 times a day at satiation. Based on the result of this research, at 3 and 4 acidity degree the BEST strain tilapia couldn’t survive, showed by 0 % of survival rate. At 5 acidity degree, the survival rate was 50,8% whereas at 6 acidity degree was 75%. Growth rate either length growth and Specific Growth Rate at 5 acidity degree was slower than 6 acidity degree. Besides the acidity degree treatment on media could caused damaged in gill microanatomy include the damage such as hypertrophy, hyperplasia, fuse and telangiektasis with diffrent level of damage.
Keyword: 

Judul: Perbandingan Algoritma Message Digest 5 (MD5) Dan Secure Hash Algorithm 1 (Shai) Untuk Autentikasi Pesan
Abstrak: Seiring dcngan meningkatnya penggunaan internet sebagai media pertukaran pcsan. metodc pcngamanan pcsan menjadi sangat penting. Nilai suatu pesan yang ingin dijaga keutuhan atnu intcgritasnya menycbabkan pesan tcrscbut hanya baleh dimodifikasi olch pihak yang bcrhak. Namun pada rcalitanya, pesan tersebut akan mendapat ancaman dari scorang penyusup. Bentuk ancaman terjadi apabiJa pcnyusup dcngan suatu cara. dapat mengubah isi pesan terscbut untuk bcrbagai kepcntingan. Apabila isi pesan telah bcrubah dad bentuk aslinya, maka pesan terscbut dikatakan sudah tidak aulcnlik (asli) Iagi. Snatn metodc yang efektif untuk mcnguji kcautentikan suatll pesan digllnakan tcknik kriptografi. Pada kal)'a ilmiah ini akan dibahas algoritma Message Digest 5 (MDS) dan Secure !-lash Algorithm (SHAI) untuk autentikasi pesan.
Keyword: