Judul: Kajian Respon Fisiologis dan Tingkah Laku Stres Ternak Domba di Desa Lingkar Kampus IPB Dramaga Bogor.
Abstrak: Sheep is one of popular ruminants in Indonesia, because sheep is one of source of animal protein, and also easy and convenient to be raised. Problem encountered in the development of rural farm is low productivity. This research aimed to evaluate the physiological response and stress behavior of sheep in the villages around campus IPB Dramaga Bogor at the age and time of difference. This research used 16 lambs from each of I0 (<1 year old) and I1 (1-1.5 years old) and observed for about two months. Parameters of physiological response that had been observed were respiration rate, heart rate, and rectal temperature. The parameters of behaviors that had been observed were resting, agonistic, vocalization, locomotive, and ingestive behaviours. Physiological response and behaviours data were analized by using analysis of variance (ANOVA). The research results showed that the heart rate and rectal temperature was affected by age. Sheep in age I0 had higher heart rate and rectal temperature (p<0.05) compared in age I1. Sheep behaviors were not affected by the treatment, namely frequency on every treatment was the same. In general, frequency of resting and ingestive were higher than the frequency of other behaviors. However, in general it was concluded that physiological response and behavior of sheep farmed in the village around campus Dramaga IPB Bogor were still in normal conditions, therefore the sheep in this area would be ready to be more developed.
Keyword: physiological response, sheep, stress behaviour

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