Judul: Characteristics and Quality of Bali Cattle Cement and Bali - Banteng Crossing at Balai Besar Inseminasi Buatan Singosari.
Abstrak: Bali cattle are Indonesian native cattle that have been domesticated from Banteng (Bos Banteng). Bali cattle have a better reproductive ability in the tropics compared to exotic cattle such as Simmental cattle and Limousine cattle. This study aimed to analyze the characteristics and quality of cement of Bali cattle and Jaliteng cattle (Banteng Cross). This study used secondary data from Balai Besar Inseminasi Buatan Singosari, Malang, East Java with a total of 1170 data consisting of 1 Jaliteng cattle with 27 ejaculations, and 33 Bali cattle with 9-47 ejaculations (an average of 35 ejaculations) for one year. Variable data for each breed of cattle were analyzed using the mean, standard deviation, and t-test. Based on the results of the study, it was found that Bali cattle and Jaliteng cattle at BBIB Singosari had significantly different characteristics and cement quality and that crossing between Bali and Banteng cattle has an impact on the decline in sperm in Bali cattle. The results of this study showed that the cement of Bali cattle and Jaliteng cattle had good characteristics and quality and met the eligibility standards to be processed and distributed either into liquid cement or frozen cement for artificial insemination programs.
Keyword: ali Cattle, Jaliteng Cattle, Quality of Sperm

Judul: Pembentukan Blastosis Pada Embrio Sapi yang Difertilisasi Secara In Vitro dengan Semen Sapi Bali (Bos javanicus) dan Semen Sapi Simmental (Bos taurus)
Abstrak: In vitro fertilization is one of reproductive biotechnology which can be used to increase population, productivity, and quality of cattle in Indonesia. Bali cattle (Bos javanicus) is one of native cattle from Indonesia, which have good carcass, meat production, which has adapted with invironment, and also have good fertility. Development of Bali cattle population can be accived through Embryo Transfer (ET) using IVF embryo production. The aim of this study was to determine the ability of Bali cattle semen (Bos javanicus) and compared with Simmental cattle semen (Bos taurus) to fertilized and its effect on cleavage rate until the blastocyst stage. This study was conducted in May and June 2012 at laboratory IVF production of Balai Embrio Ternak Cipelang, Bogor. Matured oocytes will be fertilized using Bali cattle semen and Simmental cattle semen, which have been capacitated before. Comparisons between bulls for cleavage, morula, and blastocyst rate, were analyzed using Chi-square analysis. The results indicate that Bali cattle can produced higher cleavage rate, morula rate, and blastocyst rate compared with Simmental cattle for in vitro embryo production. Embryo cleavage rate, morula rate and blastocyst rate were significantly different (P>0,05). The competence of embryo development from the blastocyst rate at day 6 was significantly different (P<0,05) but blastocyst rate at day 7, 8, and 9 were not significantly different (P>0,05).
Keyword: 

Judul: Peluang Partikel Plasma Berada Pada Dimensi Debye Akibat Gangguan Gelombang Elektromagnetik dengan Menggunakan Persamaan Schrödinger
Abstrak: The solution of Schrodinger equations with plasma Coulomb potential in spherical coordinat results solution wave function and energy plasma particle. Electron probability density at Debye length with thermal effect same as ion, which indicates plasma in neutral state. Electromagnetic waves perturbation of an electric field given to result wave function perturbation system. The probability density of plasma particle due to electromagnetic waves perturbation is the largest when an electromagnetic waves frequency 1.41 times the plasma frequency .
Keyword: Schrödinger, plasma, electromagnetic wave