Judul: Laju pertumbuhan dan tanggapan faal itik muda yang di pelihara pada kepadatan ternak dan sistim lantai yang berbeda
Abstrak: An experiment has been conducted to asses the optimum stocking density for Alabio ducks, based on their productive and physiological responses. Five hundred Alabio female ducks were reared under the same condition up to two weeks of age and were then transferred to two floor systems (deep litter and slatted bamboo floor) and five stocking densities (10, 215, 20, 25 and 30 birds/m ). At six weeks of age stocking density were changed to 4, 6, 8, 10 and 12 birds/m2 for the remainder of the experiment. Three replicates of 15 birds were used per treatment. The experimental design, was the split-plot block. Parameters measured were body weight gain, water used, feed consumption, feed conversion ratio, mortality, weight of spleen, adrenal and thyroid glands, hematocrit, some blood biochemical levels, micro climate in the pens. Some behavioural observations were also made. The results of the experiment at two to six weeks of age showed that high stocking density had a significantly effect on retarding growth, reducing feed efficiency, increasing mortality, reducing spleen absolute weight, reducing serum triglycerides level, increasing temperature in pens and causing poorer feathering condition.
Keyword: Young Ducks;, Biokimia unggas;, Itik alabio;, Bogor Agricultural University;

Judul: Performa Itik Alabio Jantan dan Betina Berdasarkan Bobot Tetas
Abstrak: Duck’s hatchery industry produces a diverse weight of Day old Duck’s (DOD) because the hatched eggs have diverse weight. The diverse of DOD weight indicates to cause affect to the performance of ducks. Research was conducted to measure the influence of hatching weight to performance of Alabio duck’s age 0 to 8 weeks. This research used 47 males and 96 females Alabio duck. Alabio’s DODs were separated based on hatching weight, that is small grade (34,39 ± 1.70), medium grade (38.57 ± 0.91), and large grade (43.12 ± 1.98). All ducks had same treatment and maintenance system. This research used randomized completely design with 2x3 factorials of sex and hatching weight. The observed variables ware consumption, average daily gain, weight cuts at 8th weeks, feed conversion, and mortality. From this research, hatching weights didn’t influenced to all performances, however sex can influence to daily gain, body weight at 8th weeks, and feed conversion. Male ducks have daily gain and body weight at 8th weeks bigger than female ducks. Male ducks have lower feed conversion than female ducks.
Keyword: 

Judul: Analisis dan Implementasi Certificate Authorities (CA) pada Public Switched Telephone Network (PSTN)
Abstrak: Secure Telephone Protocol has ability to authenticate involved party and keep the secrecy of the message sent over the protocol. The secrecy of the message archieved by using symmetric key cryptographic scheme, and authentication archieved using public key cryptographic scheme. One of several party involved in the protocol and hold an important function called Certificate Authorities or CA. CA responsible for generating public key pair for other party involved in the protocol. When CA generates public key pair, several primitive cryptographic scheme used for guarantee the security of the key. Two of them are hash function SHA-1 and El-Gamal public key scheme embedded in Digital Signature Algorithm scheme. The prototype implementing the scheme above developed using Java programming language with JCE addition from Bauncy Castle. The analysis towards implemented prototype indicates that the prototype still has some flaws to be implemented in real world.
Keyword: