Judul: Pengaruh bobot telur tetas dan umur induk terhadap performans burung puyuh (Coturnix coturnix japonica)
Abstrak: Penelitian ini dilakukan dengan tujuan untuk mengeta hui performans burung puyuh selama pertumbuhan dan produk si, berdasarkan bobot telur tetas dan umur induk. Penelitian ini dilakukan selama 14 minggu sejak Desember 1987 sampai 26 Maret 1988 di kandang unggas, kultas Peternakan Institut Pertanian Bogor. Telur tetas yang digunakan sebanyak 1344 butir. 19 Fa Metoda yang digunakan dalam penelitian ini adalah Ran cangan Acak Lengkap dengan pola Faktorial 3 x 2. Faktor A adalah bobot telur tetas, terdiri dari a₁ = bobot telur tetas 10 gram, az gram dan аз = bobot telur tetas antara 10 - 11 bobot telur tetas > 11 gram. Faktor B adalah umur induk, terdiri atas b₁ = induk umur 16 minggu dan b₂ induk umur 28 minggu. Hasil yang diperoleh adalah persentase fertilitas tidak dipengaruhi oleh bobot telur tetas maupun umur induk (P > 0.05). ...
Keyword: Egg weight, Quails age, Quails performance

Judul: Pengaruh Bobot Telur Tetas dan Umur Induk Terhadap Performans Burung Puyuh (Cortunix cortunix japonica)
Abstrak: Penelitian ini dilakukan di Laboratorium Ilmu Produksi Ternak Unggas, Jurusan Ilmu Produksi Ternak, Fakultas Peternakan, Institut Pertanian Bogor, yang berlangsung dari tanggal 19 Desember 1987 sampai dengan tanggal 25 Maret 1988 Tujuan dari penelitian ini adalah untuk mengetahui pengaruh bobot telur tetas dan umur induk yang berbeda terhadap pertambahan bobot badan, konsumsi, konversi dan morlitas pada puyuh. Sebagai materi digunakan 1344 butir telur tetas puyuh yang berasal dari umur induk 16 dan 28 minggu, dari Caringin, Bogor. Telur ditetaskan di Laboratorium Ilmu Produksi Ternak Unggas, Jurusan Ilmu Produksi, Fakultas Peternakan, Institut Pertanian Bogor. Kandang yang digunakan adalah kandang yang berbentuk 'Coloni Cage' dengan ukuran 55x45x35 cm³. m³. Kandang berdinding dan berlantai kawat 1X1 cm yang dilengkapi dengan tempat makanan dan tempat minum. Rancangan yang digunakan untuk mengetahui pengaruh bobot telur tetas dan umur induk terhadap performans puyun a- dalah Rancangan Acak Lengkap dengan Pola Faktorial 3X2 dan ulangan empat. Analisa Statistika yang digunakan adalah Sidik Ragam, sedangkan Uji antar level perlakuan adalah Uji Beda Nyata Jujur. Pertambahan bobot badan, konsumsi, konversi ransum dan mortalitas pada puyuh tidak dipengaruhi oleh umur induk dan bobot telur tetas.
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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