Judul: Penggunaan dan Pengaruh Tepung Kerabang Telur Ayam sebagai Sumber Kalsium dalam Ransum Puyuh (Coturnix coturnix japonica) Masa Produksi 1-9 Minggu terhadap Tebal dan Bobot Kerambang Telur
Abstrak: Penelitian i n i dilakukan d i Laboratorium Ilmu Produksi Ternak Unggas, Pakultas peternakan, I n s t i t u t Pertanian Bogor dan berlangsung dari tanggal 15 Januari 1984 sampai dengan tanggal 30 April 1984.
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Judul: Pengaruh Penggunaan Tinja Puyuh Dalam Ransum Terhadap Bobot Dan Komposisi Telur Puyuh (Coturnix coturnix japanico)
Abstrak: Penelitian ini dilaksanakan di Laboratorium Unggas, Jurusan Ilmu Produksi Ternak, Fakultas Peternakan, Institut Pertanian Bogor, selama sembilan minggu mulai tanggal 15 Maret 1983 sampai tanggal 17 Mei 1983. Tujuan penelitian adalah untuk mengetahui pengaruh tingkat penggunaan tinja puyuh dalam ransum terhadap bobot dan komposisi telur puyuh. Rancangan percobaan yang digunakan adalah Rancangan Acak Lengkap dengan empat ulangan dan empat macam perla- kuan yang dibedakan atas dasar perbedaan kandungan tinja dalam ransum, masing-masing sebesar O (A), 5 (B), 10 (C) dan 15 persen (D). Dalam penelitian ini jumlah telur yang digunakan 3930 butir, 1201 butir dari kelompok A, 997 butir dari kelompok B, 969 butir dari kelompok C dan 763 butir dari kelompok D. Dari hasil pengamatan diperoleh rataan bobot telur kelompok A 10.07 gram, kelompok B 9.99 gram, kelompok C 10.19 gram dan kelompok D 9.97 gram. Komposisi fisik menunjukkan persentase putih telur dari kelompok A 58.20 persen, kelompok B 57.29 persen, kelompok C 58.85 persen dan kelompok D 58.74 persen. Persentase kuning telur untuk kelompok A 32.36 persen, kelompok B 32.91 persen, kelompok C 32.70 persen dan kelompok D 33.39 persen. Untuk persentase kerabang kering dari kelompok A 8.06 persen, kelompok B 8.18 persen, kelompok C 8.07 persen dan kelompok D 8.21 persen. Secara statistik ternyata tingkat penggunaan tinja dalam ransum tidak mempengaruhi bobot maupun komposisi fisik telur puyuh. Dari hasil analisa Laboratorium Ilmu Makanan Ternak, Fakultas Peternakan, Institut Pertanian Bogor ternyata tingkat kandungan tinja dalam ransum juga tidak terlihat pengaruhnya terhadap komposisi kimia telur puyuh…
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Judul: Systematics of Desmos (Annonaceae) in Malesia
Abstrak: Desmos is a woody climbing genus of Annonaceae which has been widely used as traditional medicine in several countries such as China, Indo-China, Thailand, and Peninsular Malaysia to treat dysentery, vertigo, fever, and postpartum. Phylogenetic studies on Desmos showed a close relationship between Desmos and Dasymaschalon. They share similar moniliform monocarpic fruits, but their flowers are different. It has been debated among Annonaceae researchers whether both genera should be treated as the same or distinct genus. Therefore, investigation on the taxonomic delimitation of Desmos species and Dasymaschalon will be necessary. Plastid genome (plastome) identification, leaf epidermal section of Desmos species and Dasymaschalon species, a taxonomic revision of Desmos in Malesia using morphological data, the spatial distribution of Desmos species in Malesia, and morphological and genetic variation in Desmos chinensis population using ISSR marker were used to investigate taxonomic delimitation of Desmos. Plastome study of Desmos chinensis and Dasymaschalon dasymaschalum was carried out to determine the origin, evolution, phylogenomics, and identify marker candidates for Desmos and Dasymaschalon or with other genera in Annonaceae. We discovered that the plastome of Desmos chinensis was circular with the size of 167,677 bp (smaller than Dasymaschalon dasymaschalum), consist of 111 genes, including 78 protein-coding genes, 29 transfer RNAs, and 4 ribosomal RNAs. The plastome showed a typical quadripartite structure, i.e., large single copy (LSC), small single copy (SSC), and two inverted repeats (IRs). The plastome of Dasymaschalon dasymaschalum was 191,488 bp in length, which also exhibited a typical quadripartite structure (LSC, SSC, and two IRs). Desmos chinensis and Dasymaschalon dasymaschalum showed different copies of accD, ndhD, ndhF, rps18, and ycf2. Protein coding genes of rpoB, rpoC1, rbcL, matK, rpl32, infA, and rpl36 were identified based on nucleotide diversity, sequence variability, and parsimony-informative sites. The genes are defined as molecular marker candidates of plastome for phylogenetic, barcoding, and population genetic research. We predicted that Desmos chinensis and Dasymaschalon dasymaschalum separated at ca. 64 million years ago during the Paleocene. Leaf anatomical feature study was carried to support the taxonomic delimitation of interspecific Desmos and intergeneric of Desmos and Dasymaschalon. Leaf anatomy in the paradermal section of 20 taxa (12 species of Desmos, eight species of Dasymaschalon) have been carried out. According to the leaf epidermal section, Desmos and Dasymaschalon are two distinct genera mainly distinguished based on the anticlinal wall undulation of epidermal cells and supported by variation of the crystal type and size. The anticlinal wall undulation of Desmos was almost straight to slightly wavy and never sinuous; meanwhile, Dasymaschalon varies from almost straight to deeply sinusoid. The crystals of Desmos consist of rhombohedral, druse type A, and druse type B crystals, whereas Dasymaschalon has prism, druse type A, druse type B, and druse type C crystals. The recent taxonomic revision using the morphological data was mainly based on the examination of about 1374 specimens from BO, L, WAN, ANDA, SING, SAN, K, P, HUH herbaria. The Desmos species in Malesia consists of eight species: D. acutus, D. chinensis, D. chryseus, D. dunalii, D. pedunculosus, D. subbiglandulosus, two new records: D. lawii and D. macrocarpus, and one
Keyword: Dasymaschalon, Desmoid clade, Magnoliid, plastid genome, phylogenomics analysis