Judul: Sifat-sifat kimia dan mineralogi tanah yang berkembang dari bahan piroklastik dan lahar hasil letusan gunung galunggung pada tahun 1982 - 1983
Abstrak: Galunggung Mountain is one of active volcano in Priangan area, with a height of 2168 meters above sealevel. This mountain is located in Indihiang Subdistrict, Tasikmalaya District, West Java. Mt. Galunggung has erupted for several times, 1822 and the last times in 1982-1983. The last eruption about 20 years ago would strongly affecting soil development, therefore this research is aimed to know chemical soil properties over the area of lahar deposition from Mt. Galunggung eruption in 1982-1983. Based on topografic and geologic maps sampling locations was selected in: Pasir Bentang (Profile I), Gedongnyungcung (Profile 11) and Warujajar (Profile 111) in Indihiang Subdistric, Tasikmalaya District.
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Judul: Komposisi Jenis dan Struktur Tegakan serta Kualitas Tanah di Hutan Gunung Galunggung Tasikmalaya
Abstrak: Hutan Gunung Galunggung termasuk hutan pegunungan dan merupakan gunung berapi yang berada di Tasikmalaya, Jawa Barat. Letusan terakhir terjadi pada tahun 1982-1983. Letusan tersebut menyebabkan terjadinya perubahan vegetasi dan kondisi lingkungan. Oleh karena itu, penelitian ini bertujuan menganalisis komposisi jenis, struktur tegakan dan kualitas tanah di hutan Gunung Galunggung. Penelitian ini dilakukan dengan menggunakan metode kombinasi antara metode jalur dengan metode garis berpetak pada masing-masing ketinggian (1300, 1400 dan 1600 m dpl). Berdasarkan penelitian, total jumlah jenis yang dijumpai pada tingkat semai adalah 46 jenis, pancang 41 jenis, tiang 41 jenis, pohon 56 jenis, dan tumbuhan bawah 52 jenis. Komposisi jenis di hutan Gunung Galunggung didominasi oleh jenis pionir seperti Homalanthus populneus, Ficus ribes, Ficus septica, Ficus fistulosa, Ficus cuspidata, dan Schima wallichii, serta jenis klimaks seperti Castanopsis javanica dan Macropanax dispermus. Struktur tegakan kuantitatif dan horizontal membentuk kurva J terbalik. Struktur tegakan vertikal di ketinggian 1300 dan 1600 m dpl terdiri atas strata B (20-30 m) dan C (4- 20 m). Adapun di ketinggian 1400 m dpl terdiri atas strata A (> 30m), B (20-30 m), dan C (4-20 m). Kesuburan tanah di lokasi penelitian tergolong rendah sampai sedang.
Keyword: Gunung Galunggung, komposisi jenis, kualitas tanah, struktur tegakan

Judul: Karakteristik Karkas dan Potongan Komersial Kelinci Rex dan Satin
Abstrak: Rabbit is a small livestock that has potentiality to produce meat as protein source from animal. Rabbit meat is known to have a high protein content with low cholesterol levels. Rex and Satin rabbits are known as dual-purpose, which is producing fur and meat. This study aims to determine the yields of carcass and commercial cuts of Rex and Satin rabbits. Studies were used 12 heads of male Rex and Satin rabbits that were slaughtered at the of more than 6 months. Variables measured were carcass characteristics and commercial cuts. Completely randomized design with treatment factors of breed (Rex and Satin rabbits) with 12 replicates were used in this study. Productivity of carcass and commercial cuts were no different between Rex and Satin rabbits. Slaughter weight, carcass weight and carcass percentage of Rex rabbits were 2 422.00 ± 256.40 g/head, 1 293.17 ± 190.55 g/head and 53.25% ± 3.60%, respectively, and Satin rabbits were 2 784.17 ± 381.25 g/head, 1 511.17 ± 181.51 g/head and 54.42% ± 2.20%, respectilely. The results of this research showed that the rabbit breed had a significant difference (P<0.05) to the weight of rabbit skin.
Keyword: Satin, Rex, rabbit, commercial cut, carcass