Judul: Efektivitas Penyuntlkan Pregnant Mare's Serum Gonadotropindalam Superovulasi Pada Bobot Badan Dan Ukuran Tubuh Anak Tikus Putih Saat Lahir
Abstrak: The goal of this experiment was to study the effect of superovulation on body weight and size of pups at birth. Superovulation technique was done with the injection of PMSG before mating on female rats, to increase endogenous secretion of reproductive hormones. Twenty mature rats Sprague-Dawley strained were assigned into four treatments, each treatment with five rats. The treatment was PMSG injection, with: 0; 37,5; 75 and 150 IUlkg BW dosage respectively. PMSG injection was given intra peritoneauy at diestms cyde, then 48 hours later fouowed by HCG injection to stimulate ovulation. The experimental rats were mated and only pregnant rats were maintained until parturition. The body weight and size (head, spine, fore leg and hind leg) of 226 born pups were measured The result showed that superovulation did not significantly influence birth weight, length of head, spine and fore leg. Only 37,5 IUlkg BW dosage that increased the length of the hind leg. Superovulation did not influence the parameters within as weu as among litter size.
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Judul: Efektivitas Penyuntikan Pregnant Mare's Serum Gonadotropin Sebelum Perkawinan Pada Bobot Organ Anak Tilllis Putih Saat Lahir
Abstrak: An experiment was conducted at the Laboratory of Physiology, of Physiology and Pharmacology Department of The Faculty of Veterinary Medicine, Bogor Agricultural University from December 1999 until January 2001 to study the effect of superovulation with PMSG prior to mating on the organs weight of pups. Twenty mature rats Sprague Dawley strained were used in this experiment. 1he experimental rats were assigned into a randomized design with 4x2 factorial arrangement. The first factor was PMSG (0; 37.5; 75 and 150 IU/kg BW). The second factor lVas pups sex (male and female). Diestrus rats were injected with PMSG via intraperitoneal. Fourty eight hours later hCG was injected to increase ovulation, then the experimental rats were mated and maintained until parturition. The organ (the heart, lungs, liver, spleen, kidney, brain, ovary and testicle) of two hundred and twenty six pups bom were measured. The result showed that PMSG did not influence the body weight and organs weight except for the ovarium weight of female pups.
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Judul: Biodeteriorasi Kayu Dalam Variasi Perlakuan Sinar Matahari dan Air
Abstrak: Indonesia diketahui mempunyai sekitar 120,35 juta hektar hutan tropis. Berdasarkan luasannya, hutan tropis Indonesia menempati urutan ketiga setelah Brasil dan Republik Demokrasi Kongo (FWI dan GFW, 2001). Indonesia juga dikenal sebagai negara mega biodiversity (memiliki keanekaragaman hayati yang tinggi). Negeri ini mempunyai tidak kurang dari 4000 jenis kayu yang tersebar disepanjang hutan. Namun dari jumlah tersebut tidak lebih dari 200 jenis kayu telah dikenal dan secara komersil diperdagangkan selama ini. Laju deforestasi saat ini yang diperkirakan mencapai lebih dari 3 juta ha/ tahun menyebabkan keberadaan jenis kayu komersial kian berkurang. Walupun demikian permintaan kayu sebagai bahan baku masih sangat tinggi, sehingga dibutuhkan bahan baku lain berupa kayu solid yang dapat mensubtitusi jenis-jenis kayu komersial yang ada. Dalam hal ini kayu sengon sebagai kayu cepat tumbuh (fast growing species) dan kayu kelapa hibrida sebagai jenis kayu yang kurang dikenal (lasser known species) dapat menjadi pilihan untuk dapat menggantikan jenis-jenis kayu komersial yang ada.
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