Judul: Keterbukaan Areal Hutan Akibat Kegiatan Pemanenan Kayu di Pulau Siberut, Kepulauan Mentawai, Sumatera Barat
Abstrak: Timber harvesting was an important activity in the forest management, changes of the tree and biomass into a form that can be moved into another place easily so that it can be useful for live and livelihood especially for economics and cultures. That forest opened up area was caused by the trees felling activity, also by skidding road and landing site. The objective of the research was analyze the percentage of forest opened up area by the felling and skidding activities from stump site to the landing site. The data that was used which collected from the year of 2012 and 2013 work plan and also timber harvesting road map. The calculation of forest opened up area was performed from cutting point to the landing site. The plot used in this research is 12 plots with 1 Ha in each plot, the plot ware placed in trees felling to used by low, medium and high felling intensity and landing site area, and also in the skidding road. The forest opened up area calculated by measuring the area that has been opened from the trees felling step until it transported to landing site. This research showed that the forest opened up area caused by forest harvesting activity was about 32.33% with the highest percentage was from trees felling activity was 18.33%, skidding road making was 8.70%, wood skidding activity was 4.60%, and landing site was 0.70%. The timber harvesting technique that applies in that forestry company is a conventional technique.
Keyword: harvesting techniques timber, forest opened up area, felling intensity

Judul: Kerusakan Tegakan Tinggal Akibat Pemanenan Kayu di Perusahaan Pemanfaatan Kayu Pulau Siberut
Abstrak: The objectives of the study isto analyze the residual stand damage of trees with diameter ≥ 10 cm after felling and skidding operation. The method of the research is by counting and analyzing the damage level of trees after felling and skidding operation at 6 sample plot with 1 hectare in each plot. The percentage and rate of trees damage was calculated by comparing population number in each plot before and after harvesting. The result of the study showed that the type of damage was crown damage, bark and stem injury, fallen tree and broken stem. The percentage of the minor, medium and severe damage were 5.34%, 11.27% and 83.38% respectively. The percentage of stand damage caused by felling was 20.48% or 69.02 trees/ha and the percentage of stand damaged by skidding operation was 6.34% or 17.33 trees/ha. The average percentage of the damage was 26.82%.
Keyword: stand damage, Siberut Island, felling and skidding

Judul: Babesiosis pada kambing dan domba
Abstrak: Babesiosis adalah penyakit hewan menular yang tidak ditularkan secara kontak yang dapat bersifat akut atau kronis (menahun) dan disebabkan oleh parasit protozoa yang menyerang dan merusak sel darah merah yang termasuk dalam genus Babesia. Penyebab babesiosis pada kambing dan domba adalah Babesia motasi, Babesia ovis, Babesia foliata dan Babesia taylori. Tetapi Richardson dan Kendall (1957, dalam Le vine, 1961) menganggap bahwa B. foliata adalah sinonim dari B. ovis. Serangan parasit Babesia tersebut biasanya menyebabkan kerusakan eritrosit yang hebat sehingga hewan menderita anemia yang dapat mengakibatkan kematian hewan bila tidak segera mendapat pengobatan. Dalam mendiagnosa penyakit ini sebaiknya dilakukan sedini mungkin dengan cara mengetahui sejarah, gejala klinik dan dengan memeriksa infestasi caplak serta melakukan preparat ulas darah. Berdasarkan pengetahuan tentang morfologi dari masing-masing jenis Babesia pada kambing dan domba, dapatlah ditentukan diagnosa jenis (spesies)nya. Pemeriksaan secara serologis dapat dilakukan untuk lebih meyakinkan diagnosa. Selain dengan cara pengobatan pada hewan-hewan sakit penanggulangan babesiosis dapat pula dilakukan dengan cara memberikan preimunisasi pada hewan-hewan yang peka terhadap babesiosis serta mengadakan pemberantasan jenis caplak yang bertindak sebagai vektor dari parasit ini.' Mengkarantinakan hewan-hewan yang akan dimasukkan ke In donesia dapat pula dilakukan dalam penolakan dan pence gahan penyakit ini.
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