Soraya Faradilla(I 211 09 002). Pemberian Ransum dengan Level Energi dan Protein Berbeda terhadap performa Ayam Buras Umur 2 sampai 8 Minggu. (Dibawah bimbingan Prof. Dr. Ir. Laily Agustina, M.S sebagai Pembimbing Utama dan Ir. Muhammad Zain Mide, M.S sebagai Pembimbing Anggota). ABSTRAK Salah satu sumber protein asal hewan yang sangat mudah didapat dan mampu memberikan prospek yang baik untuk dikembangkan adalah ayam kampung. Namun kenyataannya masih banyak dari Day Old Chick (DOC) ayam buras pedaging yang diternakkan tidak menghasilkan produktifitas yang seragam, selain itu pakan yang diberikan juga belum memiliki standar nutrisi yang tetap. Penelitian ini bertujuan untuk mengetahui pengaruh pemberian level energi protein yang berbeda terhadap performa ayam buras umur 2 sampai 8 minggu. Penelitian ini di atur menurut Rancangan Acak Lengkap (RAL) (Gaspersz, 1991). Terdiri dari 4 perlakuan dan 5 kali ulangan yaitu A: energi metabolisme 2600 kkal/kg protein 14% , B: energi metabolisme 2600 kkal/kg protein 16 %, C: energi metabolisme 2800 kkal/kg protein 16 %, D: energi metabolisme 2800 kkal/kg protein 18%. Hasil analisis sidik ragam menunjukkan bahwa pemberian level energi protein berbeda berpengaruh nyata (P<0,05) pada performa ayam buras umur 2 sampai 8 minggu. Berdasarkan penelitian ini, dapat disimpulkan bahwa pemberian energi metabolisme 2800 kkal/kg protein 18 % memberikan hasil terbaik terhadap performa ayam buras umur 2 sampai 8 minggu sedangkan pemberian energi metabolisme 2600 kkal/kg protein 14 % belum bisa memenuhi kebutuhan hidup ayam buras umur 2 sampai 8 minggu. Kata Kunci : Ayam Buras, Energi, Protein, performa Soraya Faradilla (I 211 09 002). Rationing of Different Energy and Protein Level on the Performance of Native Chicken Age 2 to 8 Weeks. (Under promotor of Prof. Dr. Ir. Laily Agustina, MS as a copromotor is Ir. Muhammad Zain Mide, MS as Co Supervisior). ABSTRACT One source of animal protein which are very easily available and able to provide is good prospects for development is native chicken. The fact is many of Day Old Chick (DOC) native are bred not produce a uniform productivity, besides the feed is also not have nutrition remain standards yet. The Purpose of this study to determine the effect of different levels of protein and energy to the performance of domestic poultry ages 2 to 8 weeks. This study is set according to Completely Randomized Design (CRD) (Gaspersz, 1991). Consisting of 4 treatments and 5 replications ie A: Energy metabolism of 2600 kcal / kg protein 14%, B: energy metabolism of 2600 kcal / kg protein 16%, C: energy metabolism of 2800 kcal / kg protein 16%, D: Energy metabolism 2800 kcal / kg of 18% protein. Results analysis of variance showed that administration of protein energy levels differ significantly (P <0.05) on the performance of native chicken ages 2 to 8 weeks. Based on this study, it can be concluded that the provision of energy metabolism of 2800 kcal / kg protein 18% gave the best results on the performance of native chicken ages 2 to 8 weeks while energizing metabolism of 2600 kcal / kg of 14% protein can not suffice nutrition of native chiken ages 2 to 8 weeks yet. Keywords: Native Chicken, Energy, Protein, performance