Judul: Performa Produksi dan Reproduksi PersilanganAyamSentul dengan Kampung serta Pelung dengan Sentul.
Abstrak: Demand of chicken meat and eggs can be completed from local chicken. From the genetic aspect, Indonesian local chicken has large genetic diversity between strains. Crossing is one way to improve the production performance. Crosses were performed in this study is between male sentul chicken with female kampung chicken (SK) and male pelung chicken with female sentul chicken (PS). This study observed on hen day, egg weight, egg shape, fertility, hatchability, DOC weight (day old chiks), eggshell thickness, and mortality of embrio. Comparison test calculated based on T-test. The results showed difference in succession SK and PS for fertility (75.36±11.82% and 65.36±27.66%), hatchability (29.13±15.45% and 28.53±22.57%), mortality of embrio (71.12±15.69% and 71.47±22.57%), hen day (42.16±13.97% and 51.75±17.25%), egg shape (0.764±0.041 and 0.759±0.053). Egg weight of SK (44.15±4.37 g) lighter than PS (4.84±3.59 g) and DOC weight of SK (28.22±3.39 g) lighter than PS (30.09±3.16 g). According to biological sentul chicken in intersection of PS had higher egg production than kampung chicken in intersection SK. PS had a better performance than SK because with the similarity of shell tickness, hatchability and embrio mortality PS had higher hatching weight than SK.
Keyword: local chicken., hen day, hatcabillity, fertility, DOC weight

Judul: Performa F1 antara Ayam Sentul X Kampung dan Ayam Pelung X Sentul pada Umur 0-12 Minggu
Abstrak: The experiment aimed to observe growth performance of 3 native chicken crossed. The materials used in this experiment were 22 day old chick (DOC) resulted of natural mating between male pelung and female sentul chicken (PS) and 113 DOC resulted of natural mating between male sentul and female kampung chicken (SK). Feeds were given during experiment divided into 3 phases that were BR-21E 100% for chicken between 0-3 weeks of age, rice bran 20% and BR-21E 80% for 4 week age, and grower feeds rice bran 40% and BR-21E 60% for chicken between 5-12 weeks. Variables which recorded weekly were body weight until 12 weeks of age, weight gain, feed consumption, feed conversion, and mortality. The t-test was used to compare data of performance between two sexes and between two cross system (PS and SK). The results showed that body weight at 12 weeks of crossbred (PS) male was significantly higher than SK (P<0.01) also female (P>0.05). Feed consumption and feed conversion were not significantly different (P>0.05). The mortality rate during the experiment were 4.54% for crossbred PS and 7.07% for SK. SK and PS can be applied to increase meat production.
Keyword: performance, sentul chicken, pelung chicken, kampung chicken

Judul: Heisenberg Uncertainty of Double SlitSystem Based on Budiyono-Rohrlich Quantum Statistics Model
Abstrak: Interpretasi kuantum dikembangkan untuk memaknai secara fisis dengan jelas bagaimana suatu dinamika pada sistem mikroskopis yang dijelaskan dengan teori-teori kuantum, seperti interpretasi Copenhagen yang mendeskripsikan sistem kuantum sebagai suatu keadaan yang dideskripsikan dengan fungsi gelombang yang berisikan bagaimana peluang keadaan suatu sistem. Interpretasi kuantum juga bisa dibawa dari suatu sistem klasik seperti pada model statistika-kuantum Budiyono-Rohrlich yang menjelaskan bagaimana dinamika kuantum berhubungan dengan sistem klasik dengan penerapan statistika pada model Hamiltonian sistem. Fungsi distribusi dapat mendeskripsikan bagaimana suatu sistem terdistribusi pada suatu ruang pada pandangan klasik namun untuk sistem kuantum fungsi distribusi adalah peluang dari sistem tersebut. Sistem klasik dan kuantum juga dipisahkan berdasarkan pada ketidakpastian Heisenberg tentang suatu pengukuran yang tidak bisa secara sekaligus dilakukan bersamaan. Model statistika-kuantum Budiyono-Rohrlich membawa suatu sistem klasik menjadi sistem kuantum dengan dua aksioma yaitu hukum kekekalan energi rata rata dan konservasi rapat probabilitas. Sistem klasik yang didefinisikan akan diatur dengan menambahkan dua variable matematis berupa ontic extensions dan epistemic restrictions dimana kedua variabel ini yang akan menghubungkan bagaimana sistem klasik bisa diubah menjadi sebuah sistem kuantum. Dua variabel matematis tadi membuat sebuah sistem bisa diperlihatkan ketidakpastiannya lewat perhitungan simpangan rata-rata dan hasilnya akan selalu memenuhi ketidakpastian Heisenberg
Keyword: fungsi distribusi, model Budiyono-Rohrlich, ontic extension, epistemic restriction, ketidakpastian Heisenberg