Judul: Penampilan Reproduksi Kambing Cross Boer (Jawarandu-Boer) “Studi Kasus di PT. Widodo Makmur Perkasa, Propinsi Lampung”
Abstrak: This case study aimed at knowing the management and problems that often in the maintenance of the Cross Boer goat, identify the level of the precnancy in the natural breeding and artificial insemination, and to know the appearance of the Cross Boer goat reproduction. This study was carried on November 2007 until July 2008, based on the method survey descriptive with the primary data collection through the interview from several staff in PT Widodo Makmur Perkasa. The other data was collect from the available data in PT Widodo Makmur Perkasa. The data that was received afterwards was analysed qualitatively. The observation showed that level success of the Conseption Rate value (CR) or the level success of the reproduction by means of being natural breeding was higher (83%) compared with the Artificial Insemination method (70%). The Service per Conseption (S/C) of i natural breeding is 1,2 and the Artificial Insemination is 1,4. This data showed that S/C of Artificial Insemination is higher than Natural Breeding.
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Judul: The Reproduction Performans of Cross Boer and Kacang Goat’s “Case Study in PT. Widodo Makmur Perkasa, Province of Lampung”
Abstrak: This case study aimed as to know about management and the problems that often in the maintenance of the Cross Boer and Kacang Goat’s, pregnancy rate in the natural breeding and artificial insemination of the Cross Boer and Kacang Goat’s, to know the reproductive performance of the Cross Boer and Kacang Goat’s and to know the value of the conception rate (CR) and service per conception (S/C) from the Cross Boer and Kacang Goat’s. this study was carried on November 2007 until July in 2008, based on the method survey descriptive with the primary data collection through the interview from the employee in the PT. Widodo Makmur Perkasa, immediately observation, and the activity data in 2006-2007. The data was analysed qualitatively. The observation showed that maintenance management of the goat is good and need to improvement in feeding management and health management. Appear of pregnant in the cross Boer and Kacang Goat’s with the natural breeding higher than artificial insemination, and the value of service per conception (S/C) 1,2 and the value of the conception rate (CR) 80% in the cross Boer and Kacang Goat’s included normal showed that the artificial insemination was success.
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Judul: Pemanasan Sekunder Reaksi Fusi Plasma dengan Menggunakan Radio Frequency
Abstrak: Plasma merupakan bentuk ke-empat dari materi setelah padat, cair dan gas yang terbentuk dari proses ionisasi gas. Plasma dapat digunakan dalam reaksi fusi, yaitu reaksi penggabungan dua inti atom ringan menjadi inti atom yang lebih berat sambil melepaskan energi. Untuk mendapatkan energi dari reaksi fusi, inti yang akan direaksikan harus dipanaskan pada temperatur yang sangat ekstrem tingginya. Salah satu cara agar dapat mencapai kondisi ini adalah memberikan pemanasan tambahan atau pemanasan sekunder kepada plasma dalam reaksi fusi tersebut. Nilai daya serap rata-rata ion Deuterium yang sesuai dengan selang nilai daya dari data ITER adalah daya yang menggunakan frekuensi 50 MHz sampai dengan 60 MHz. Dengan menggunakan frekuensi 60 Hz diperoleh nilai daya rata-rata yang diserap sebesar 1,235.10-12 W.
Keyword: gelombang radio, pemanasan sekunder, plasma, reaksi fusi