Judul: Sifat fisis dan mekanis papan partikel Bambu Betung dengan perlakuan perendaman asam asetat
Abstrak: Bamboo can be used as an alternative raw material for many wooden products. One of the promising products that can be developed from bamboo is a particleboard. However, previously experiment reported that some physical and mechanical properties of bamboo particleboard were lower than that of standard requirement. In order to improve the quality of bamboo particleboard, this research aimed to study the effect of acetic acid soaking pretreatment on physical and mechanical properties of Betung bamboo particleboard. Bamboo particle was soaked in 1, 2, and 3% acetic acid solution, respectively. Urea formaldehyde (UF) adhesive was used for binder which the target density of particleboard was set at 0.70 g/cm3. The UF bonding of bamboo particleboard with and without addition of hardener were used as control. Physical and mechanical properties of particleboard were tested in accordance with JIS A 5908:2003 standard. The result showed that acetic acid soaking pretreatment increases the physical properties of particleboard, nevertheless, it has not met the standard of Japanese Industrial Standard (JIS A 5908:2003). The mechanical properties of particleboard have met the standard of Japanese Industrial Standard (JIS A 5908:2003) for modulus of rupture (MOR), internal bond (IB) and Screw Holding Power. The increasing of acetic acid concentration the decreasing of board strength was observed, indicating that a part of chemical component of bamboo degraded by acid.
Keyword: Bogor Agricultural University (IPB), urea formaldehyde, particleboard, betung bamboo, acetic acid

Judul: Sifat Fisis dan Mekanis Papan Partikel Bambu Ampel dengan Perlakuan Perendaman Asam Asetat
Abstrak: Manufacturing of interior particle boards commonly use urea formaldehyde (UF). The adhesion process of UF is optimum in acidic pH condition. Acetic acid immersion aims to raise the level of acidity of ampel bamboo particles to accelerate the adhesion level of the UF adhesive and to increase physical and mechanical properties of board. Method that used in this research was carried out dipping of ampel particle in 1 and 3% acetid acid and hardener with adhesive treatment. The results of this research will be compared to control. The purpose of this study was to determine the physical and mechanical properties of particle boards made from Ampel bamboo after acetic acid pretreatment, and it compares to particle board with hardener and control. The results showed that the Density, Moisture Content (MC), Modulus of Rupture (MOR), Internal Bond (IB), Strong Hold Screws (SHS) in the particle board acetic acid soaking treatment and mixing hardener has met to JIS A 5908: 2003 standard with a density value more than 0.4 g cm-3, MC below 13%, MOR more than 8.36 N mm-2, IB more than 0.15 N mm-2, and the SHS more than 304 N.
Keyword: Bogor Agricultural University (IPB), Particle boards., hardener, adhesives UF, acetic acid

Judul: Theileriosis pada domba dan kambing akibat infeksi theileria ovis dan theileria hirci
Abstrak: Theileriosis adalah penyakit menular yang disebabkan Boleh protozoa dari genus Theileria dan ditularkan melalui vektor caplak. Theileria ovis dan Theileria hirci pernah dimasukkan dalam genus Gonderia sehingga penyakit yang disebabkan oleh penyakit ini mempunyai beberapa nama diantaranya Benign Ovine and Caprine Gonderiosis atau Benign Ovine and Caprine Theileriosis (disebabkan oleh infeksi Theile- ria ovis). Sedang yang disebabkan oleh infeksi Theileria hirci diberi nama Malignant Ovine and Caprine Gonderiosis Malignant Ovine and Caprine Theileriosis (Levine, 1961). Soulsby (1982) dan Jensen (1983), memasukkan Theileria hirci dan Theileria ovis dalam genus Theileria, famili Theileriidae, ordo Piroplasmida, subklas Piroplasmia dan dalam kelas Sporozoa. Menurut hasil pemeriksaan theileriosis pada domba dan kambing di Indonesia periode 1 April 1981 sampai 31 Maret 1982 di Propinsi Sumatera Barat di Daerah Tingkat II Pasaman Kecamatan Talamun ditemukan pada 2 ekor kambing kacang, Kecamatan Sungai Beremas ditemukan pada 3 ekor kambing kacang dan di Daerah Tingkat II Padang Pariaman, Kecamatan Pariaman ditemukan pada 1 ekor kambing kacang (Informasi Keswan, 1982). Daerah penyebaran Theileria ovis yang pernah dilapor- kan adalah Afrika Tengah, Afrika Barat, Afrika Timur, Afrika Selatan, Perancis, Jerman, Hongaria, Sardinia dan diduga India. Sedangkan penyebaran Theileria hirci meli- puti Afrika Utara, Eropa Selatan, Irak dan Turki. Bentuk Theileria ovis dan Theileria hirci pada domba dan kambing dalam eritrosit disebut piroplasma dan bentuk dalam limfosit disebut Koch bodies atau skizon. Bentuk dalam vektor caplak adalah zigot dan kinet. Di dalam eritrosit parasit ini mempunyai beberapa macam bentuk yaitu, bentuk bulat, oval, batang, bentuk buah pir atau koma dan bentuk seperti anaplasma. Bentuk dalam limfosit berupa skizon yang terdiri dari makroskizon dan mikroskizon. Penularan Theileria ovis dan Theileria hirci dari hewan satu ke hewan lain secara alam dilakukan oleh vektor caplak secara stage to stage. Vektor dari Theileria ovis adalah caplak dari genus Rhipicephalus, Dermacentor, Hae- mophysalis dan Ornithodorus. Sedangkan vektor dari Thei- leria hirci yaitu caplak dari genus Rhipicephalus dan di- duga Ornithodorus. Penularan secara buatan dapat dilakukan dengan cara mekanik (penyuntikan dengan aplikasi intravena, subkutan dan intraperitoneal)…dst
Keyword: