Judul: Karakteristik Produksi dan Potensi Pengembangan Kerbau Rawa pada Daerah Basah dan Kering di Kabupaten Bima
Abstrak: The purpose of this research was to study the characteristics and potential production of swamp buffalo in wet and dry areas of Bima regency. The study used survey and direct observation methods on the targeted areas. The primary and secondary data were collected and analyzed descriptively. The buffaloes in Belo district were semi-intensively reared, whereas those in Wera district were extensively reared. The buffalo in Belo district had sex ratio, age of first mating, age of first parturition, calving rate, calf crop, calf mortality, periode of first mating after calving, and calving interval were 1:3, 3.4 years, 4.2 years, 91.1%, 76.2%, 12%, 2.4 months, 15.9 months respectively. Meanwhile, the reproductive characteristics in Wera district were 1:3, 3.3 years, 4.1 years, 84.2%, 70.3%, 17.1%, 2.3 months 14.4 months respectively. The buffaloes in Belo had BCS 2 (35%), BCS 3 (60%), and BCS 4 (5%), whereas in Wera have BCS 2 (45%), BCS 3 (50%) and BCS 4 (5%). In general, the buffaloes In Belo had better performance compared to that in Wera district. However, the potential land and feed resources for development of buffalo in Wera district still high compared with Belo district.
Keyword: 

Judul: Produktivitas Kerbau Rawa di Kecamatan  Muara Muntai, Kabupaten Kutai Kartanegara, Kalimantan Timur
Abstrak: The purpose of this reseach was to investigate productivity of swamp buffalo in Pulau Harapan Village. The reseach was conducted from February to May 2009 in Muara Muntai Subdistric, Kutai Kartanegara Regency, East Kalimantan. The number of observation were 16 buffaloes (bull, dam, male and female calves 4 each). The results were as follow: the ratio between male and female was 1:4; first oestrus was at 2.6 years of age with the average duration of heat about 8 days and the oestrous cycle about 18.5 days. The first conception occured at 2.8 years with the gestation period about I year. Birth rate and calf crop were relatively high: 75% and 67%. The difference of birth rate and calf crop caused mortality about 11% at 1.7 months of age. Service per conception and conception rate were not known because the buffalo does not use artificial insemination and natural mating was not controlled by breeder. An average body weight of calves at 0 to 24 months were 201.58±81.27 kgs and adult buffaloes at 3-10 years were 372.66±95.25 kgs. The development prospect of buffalo in Muara Muntai was analysed with SWOT from internal and external aspects. Internal aspect include livestock land natural resource, man power, institution, and maintenance system, whereas external aspect include climate, meat demand, price, rivalry, sociocultural, and socioeconomy. The strategies formula of development livestock based on the result of SWOT analysis are reduced mortality, increasing productivity of forage with high quality, increasing harvest weight, repairing reproduction aspect, and deciding prohibition order disimissal and slaughtering breed of bufallo. Keywords: swamp buffalo and productivity
Keyword: 

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