Judul: Karakteristik wol domba tercemar timbal yang disuplementasi kombinasi protein yeast, mineral organik, khitosan dan ekstrak rumput laut coklat
Abstrak: Sheep is one of protein source which many people breed in tropic area, including in Indonesia. Beside as source of protein, sheep also used to 11roduce wool, especially in sub tropic countries. Sheep has better adaptation in environment, climate and feed. This study was completely done in 'outdoor laboratoly of IPT Ruluinansia Kecil Departemen IPTP, laboratory of Nutrisi Ternalc Perah Departemen INMT. and photo inicro laboratory, Departemen Biologi Falcultas MIPA Institilt l'ertanian Bogor. This field research was done in July to November 2004. This study used 24 heads local strain nlale sheep aged 8 months old. This sheep was grouped into Tor group based on body weight. Each groups was 6 head sheep.the treatlnents were six. first treatnlent was basal feed (RO), that was for~nulatedf eed based on NRC of sheep (1 989). Second treatment was colnbination of basal feed and 4.5 ppin lead acetate (RI). Third treatment was combination of R1 feed and 1 % yeast protein (R2). Fourth treatment was combination of R2 feed and organic ~nineral Zn 40 ppm. CulO ppm, Cr 2 ppm, and Se 0.3 ppnl (R3). Fifth treatment was colnbination feed of R3 and chitosan (R4). Sixth treatlnent was combination of R3 treatment and Brown weed extract (R5). Wool cutting and collected was done twice, once before treatment's given and second pasca treatment. Taken wool was analyzed of length; weight, density, dianleter and Lead concentration in wool. The design was using groups randoinized design. Then using one way anova (analysis of variance): f~~rther difference was analyzed using lu.uslcal wallis. The results showed that given of lead and supple~iient did not affect to wool quality. It showed in length. weigh. density and dianieter. ICeywords : Sheep. Wool, Lead (Pb), Protein Yeast, Organic Mineral. Chitosan, Brown Sea Weed Extract
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Judul: Respon Fisiologis Domba Ekor Tipis Jantan yang Diberi Pakan Rumput Brachiaria humidicola dan Kulit Singkong pada Level yang Berbeda
Abstrak: The body condition of livestock is affected by physiological process which is stimulated by environmental changes such as weather, nutrition and management factors. The main objective of this research is to observe physiological response of male indigenous local sheep given different level of Brachiaria humidicola grass and cassava hull. Twelve yearling male indigenous local sheep with initial average body weight 19,06 ± 1,46 kg were used in this research. Dietary treatments consisted of R0: 100% Brachiaria humidicola + 0% cassava hull, R1 : 80% Brachiaria humidicola + 20% cassava hull, R2: 60% Brachiaria humidicola + 40% cassava hull, R3: 40% Brachiaria humidicola + 60% cassava hull. The parameters observed were rectal temperature, frequency of respiration, and heartbeat. Both indoor and outdoor microclimate had been measured (temperature and humidity). Randomized Complete Design with three repetition was used to analyze the data, and any significant differences were further tested by using Duncan’s test. The experimental showed that result were not significant (P>0,05) to rectal temperature, frequency of respiration and heartbeat. It is concluded that the use of cassava hull in feed must be more carefully because of HCN as limited factor and its possible negative effect on sheep physiology response. Keywords : local sheep, Brachiaria humidicola, cassava hull, and physiological responses
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Judul: Closed Knight’s Tour pada Papan Catur Berbentuk Persegi Panjang dengan Ukuran Maksimal 8 × 8
Abstrak: Closed Knight’s Tour merupakan langkah kuda yang mengunjungi setiap kotak pada papan catur tepat satu kali dengan langkah kuda berawal dan berakhir pada kotak yang sama. Graf yang terbentuk dari closed knight’s tour dinotasikan sebagai graf G(m,n), dengan m adalah banyaknya baris dan n adalah banyaknya kolom. Graf tersebut memuat Hamiltonian cycle. Sebuah graf terhubung G adalah graf bipartite jika dan hanya jika graf tersebut tidak memiliki cycle dengan panjang ganjil. Papan catur yang memenuhi syarat cukup untuk memiliki closed knight’s tour adalah papan catur berukuran 5 × 6, 5 × 8, 6 × 6, 6 × 7, 6 × 8, 7 × 8, dan 8 × 8.
Keyword: bipartite, closed knight’s tour, hamiltonian cycle, knight’s tour, teori graf