PENGARUH PEMBERIAN SERBUK DAUN SINGKONG(manihot esculenta crantz) TERHADAP KADAR ZAT BESI (Fe) DARAH AYAM BROILER ABSTRAK Telah dilakukan penelitian yang bertujuan untuk mengetahui kadar zat besi darah ayam broiler yang diberi serbuk daun singkong (manihot esculenta crantz) pada pakan standar. Rancangan penelitian adalah rancangan acak lengkap(RAL) pola searah dengan 4 perlakuan 3 ulangan: kelompok p1 diberi pakan standar tanpa penambahan serbuk daun singkong, kelompok PII, PIII dan PIV diberi pakan standar yang ditambah serbuk daun singkong berturut-turut sebanyak 5%, 10% dan 15% diberikan selama 30 hari berturut-turut. Hewan coba adalah 12 ekor ayam broiler berumur 3 hari dan secara klinis dinyatakan sehat. Darah diambil melalui vena jugularis sebanyak 3 ml menggunakan dysposible syringe yang telah di isi EDTA (ethylen diamin tetra asetat). Hasil penelitian menunjukkan rata-rata ±SD kadar zat besi (mg/dl) secara berturut-turut 0,26±0,07; 0,51±0,07; 1,49±0,12; dan 2,22±0,22. Hasil analisis varian menunjukkan pemberian serbuk daun singkong padakonsentrasi 15% berpengaruh sangat nyata (P0,05). Effect of cassava leaf powder(manihot eskulenta cranz) on iron level (fe) in chicken blood ABSTRACT A research was conducted with the aim to determine the iron blood level of broiler chicken given trituration leaves of cassava (manihotnesculenta crantz) in the standard food. Design of the research was random of complete with unidirectional design in 4 treatments and 3 replication : PI group was standard feed without addition or leaf of cassava trituration, tha group PII, PIII and PIV standard feed cassava leave of titration with addition the tritation powder as much as 5%, 10%, and 15% a given cothinuosly for 30 days. Animal model used were 12 broiler chicken at age of 3 day old chicken in clinical healty condition. Blood was taken via jugular vein of 3 ml of blood using dysposible syringe content EDTA (Ethylen Diamine Tetra acetate). Iron level was counted using AAS (atomic absorbsion spectroscopy) method. The result showet that on the average ± SD level iron substance (mg/dl) subseguently 0,26±0,07; 0,51±0,07; 1,49±0,12; and2,22±0,22. The resul of analsis varians showed that given trituration/powder leave of cassava in consentration of 15% gived significan (p0,05).