Judul: Percentage of Carcass Weight and Commercial Cuttings of Third Generation IPB-D2 Male Candidate Breeds Aged 10 to 12 Weeks
Abstrak: Ayam IPB-D1 merupakan rumpun ayam lokal baru yang berhasil dikembangkan oleh Institut Pertanian Bogor. Dilakukan seleksi ayam IPB-D1 berdasarkan konsentrasi IgY dan titer antibodi ND untuk mendapatkan ayam kandidat galur IPB-D2. Penelitian ini bertujuan mengkaji persentase bobot karkas dan potongan komersial ayam jantan kandidat galur IPB-D2 G3. Ayam yang digunakan berjumlah 24 ekor ayam jantan kandidat galur IPB-D2. Peubah yang diamati adalah persentase bobot karkas dan potongan komersial. Data yang diperoleh dianalisis dengan uji deskriptif dan di uji t dengan ayam jantan kandidat galur IPB-D3 G1 dan ayam jantan IPB-D1 Sukabumi. Hasil penelitian menunjukkan persentase karkas ayam jantan kandidat galur IPB-D2 G3 meningkat. Ayam jantan kandidat galur IPB-D2 G3 memiliki bobot serta persentase karkas dan potongan komersial lebih tinggi dibandingkan dengan ayam jantan IPB-D1 Sukabumi. Ayam jantan kandidat galur IPB-D2 G3 memiliki kualitas karkas yang baik., IPB-D1 chicken is a new local chicken breed successfully developed by Bogor Agricultural University. IPB-D1 chickens were selected based on IgY concentration and ND antibody titer to obtain IPB-D2 candidate strains. This study aimed to assess the percentage of carcass weight and commercial cuts of IPB-D2 G3 candidate roosters. The chickens used amounted to 24 roosters of IPB D2 candidate strains. The observed variables were the percentage of carcass weight and commercial cuts. The data obtained were analyzed by descriptive test and t-test with IPB-D3 G1 and IPB-D1 Sukabumi candidate roosters. The results showed that the carcass percentage of IPB-D2 G3 candidate roosters increased. IPB-D2 G3 candidate roosters had higher carcass weight and percentage and commercial cuts compared to IPB-D1 Sukabumi roosters. IPB-D2 G3 candidate roosters had good carcass quality.
Keyword: ayam IPB-D2, bobot karkas, potongan komersial

Judul: Comparison of Carcass and Non-Carcass Weight  Percentage between IPB-D2 Chickens and IPB-D3 Chickens at Different Slaughter  Age
Abstrak: Ayam IPB-D1 sebagai rumpun baru ayam lokal merupakan upaya meningkatkan mutu genetik ayam lokal Indonesia. Ayam IPB-D2 dan IPB-D3 keturunan ayam IPB-D1 diseleksi untuk dijadikan calon indukan ayam IPB-D1 unggul. Penelitian ini bertujuan menambah informasi, mengkaji, dan membandingkan persentase bobot karkas dan non-karkas pada galur ayam IPB-D2 dan IPB-D3 pada umur potong berbeda. Ayam yang digunakan sebanyak 30 ekor untuk masing masing galur. Peubah yang diamati yaitu bobot dada, paha atas, paha bawah, sayap, punggung, kepala, leher, ceker, hati, usus, rempela, dan jantung. Data yang diperoleh dianalisis dengan uji deskriptif dan uji t. Hasil penelitian menunjukkan persentase bobot karkas ayam jantan IPB-D2 G4 lebih kecil dibandingkan dengan ayam jantan IPB-D3 G2. Persentase bobot non-karkas ayam jantan IPB-D2 G4 lebih besar dari ayam jantan IPB-D3 G2. Ayam IPB-D3 memiliki peluang yang unggul sebagai calon galur pejantan dan ayam penghasil daging. Ayam IPB-D2 memiliki peluang yang unggul sebagai calon galur betina., The IPB-D1 chicken as a new species of local chickens is an effort to improve the genetic quality of Indonesia's local chickens. Chicken IPB-D2 and IPB-D3 incubators of chicken IPB-D1 were selected for special breed chicken IPB-D1. The study aims to add information, review, and compare the percentage of weight of carcass and non-carcass in chicken galleys IPB-D2 and IPB-D3 at different cut ages. Chickens used up to 30 chickens each. The observed change was the weight of the chest, upper thigh, lower thigh, wing, back, head, neck, neck, claw, liver, intestines, and heart. Data obtained was analyzed with a descriptive and t-test results showing a percentage of cock weight in IPB-D2 G4 cock was smaller than the IPB-D3 G2 cock. Non-carcass a cock IPB-D2 G4 was greater than a cock IPB-D3 G2. The chicken IPB-D3 has a distinct chance of becoming a male and flesh-producing hen. The IPB-D2 chicken has an excellent opportunity as a female trowel.
Keyword: carcass weight, IPB-D2 line chicken, IPB-D3 line chicken, non-carcass  weight

Judul: Penggunaan Teorema Homeomorphy 2-Manifold dan Teorema Euler Poincare pada Torus 𝑇�� dan Simplicial Complex 𝐾��
Abstrak: Two dimensional topological spaces are said to be homeomorphic if they have the same topological invariant, where one of topological invariant used is an Euler characteristic. Homeomorphy 2-Manifold’s Theorem and Euler Poincare’s Theorem are used to distinguish two topological spaces. Homeomorphy 2-Manifold’s Theorem uses Euler characteristic to identify two dimensional topological spaces. Euler Poincare’s Theorem is an alternative way to find Euler characteristic with Betti number, which is topological invariant as well. The objective of this paper is to investigate the homeomorphism of torus 𝑇����� and simplicial complex 𝐾�����. Topological space torus and simplicial complex 𝐾����� have the same Euler characteristic, which is two. Based on Homeomorphy 2-Manifold’s Theorem topological space torus 𝑇����� and simplicial complex 𝐾����� is homeomorphic.
Keyword: simplicial, torus, Euler, homeomorphism, topology