PENGARUH TINGKAT ENERGI PROTEIN RANSUM TERHADAP TOTAL PROTEIN DAN KERAPUHAN SEL DARAH MERAH AYAM LOKAL JIMMY FARM Hanifah Rahmah ABSTRAK Penelitian ini dilakukan untuk mengetahui pengaruh tingkat energi protein ransum terhadap total protein dan kerapuhan sel darah merah ayam lokal Jimmy Farm. Penelitian dilakukan mulai Februari hingga April 2017 di Test Farm, Laboratorium Fisiologi dan Biokimia, Fakultas Peternakan Universitas Padjadjaran, serta analisis sampel dilakukan di Laboratorium Fisiologi Ternak dan Biokimia Fakultas Peternakan Universitas Padjadjaran. Sebanyak 20 ekor ayam lokal Jimmy Farm yang berumur 2 minggu. Metode yang digunakan dalam penelitian ini adalah metode eksperimental dengan Rancangan Acak Lengkap (RAL) yang terdiri dari 5 perlakuan (R1= protein 15% dan energi 2750 kkal/kg, R2= protein 17% dan energi 2750 kkal/kg, R3= protein 19% dan energi 2750 kkal/kg, R4= protein 15% dan energi 2950 kkal/kg, R5= protein 17% dan energi 2950 kkal/kg) dan 4 ulangan. Hasil analisis statistik menunjukkan bahwa nilai rataan total protein dan kerapuhan sel darah merah tidak berbeda nyata (P>0,05). Kata kunci : Ayam Lokal Jimmy Farm, Tingkat Energi Protein, Total Protein, Kerapuhan Sel Darah Merah EFFECT OF ENERGY PROTEIN DIETARY OF PROTEIN TOTAL AND ERITROSIT OSMOTIC MEMBRANE FRAGILITY OF JIMMY FARM LOCAL CHICKEN Hanifah Rahmah ABSTRACT This research was conducted to determine the effect of the energy protein levels of the total protein and eritrosit osmotic membrane fragility of Jimmy Farm local chickens. This research was conducted from February to April 2017 at Test Farm in Padjadjaran University Faculty of Animal Husbandry, then for sample analysis perfomed in the Laboratory of Animal Physiology and Biochemistry Padjadjaran University Faculty of Animal Husbandry. A total of 20 local chickens Jimmy Farm aged 2 weeks. This research used experimental method with five treatment is (R1= protein 15% dan energy 2750 kkal/kg, R2= protein 17% dan energy 2750 kkal/kg, R3= protein 19% dan energy 2750 kkal/kg, R4= protein 15% dan energy 2950 kkal/kg, R5= protein 17% dan energy 2950 kkal/kg) and four replications. Statistical analysis showed that the average value of protein total and eritrosit osmotic membrane fragility were not significantly different (P>0.05). Keywords : local chicken Jimmy Farm, energy protein levels, protein total, eritrosit osmotic membrane fragility